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-rw-r--r--navit/transform.c2194
1 files changed, 1058 insertions, 1136 deletions
diff --git a/navit/transform.c b/navit/transform.c
index 573eb3022..67df6f08b 100644
--- a/navit/transform.c
+++ b/navit/transform.c
@@ -62,33 +62,33 @@
* @brief The parameters needed to transform a map for display.
*/
struct transformation {
- int yaw; /* Rotation angle */
- int pitch;
- int ddd; /* 3d mode/isometric view active? (0/1) */
- int m00,m01,m02; /* 3d transformation matrix */
- int m10,m11,m12;
- int m20,m21,m22;
- int xscale,yscale,wscale;
- int xscale3d,yscale3d,wscale3d;
+ int yaw; /* Rotation angle */
+ int pitch;
+ int ddd; /* 3d mode/isometric view active? (0/1) */
+ int m00,m01,m02; /* 3d transformation matrix */
+ int m10,m11,m12;
+ int m20,m21,m22;
+ int xscale,yscale,wscale;
+ int xscale3d,yscale3d,wscale3d;
#ifdef ENABLE_ROLL
- int roll;
- int hog;
+ int roll;
+ int hog;
#endif
- navit_float im00,im01,im02; /* inverse 3d transformation matrix */
- navit_float im10,im11,im12;
- navit_float im20,im21,im22;
- struct map_selection *map_sel;
- struct map_selection *screen_sel;
- struct point screen_center;
- int screen_dist;
- int offx,offy,offz;
- int znear,zfar;
- struct coord map_center; /* Center of source rectangle */
- enum projection pro;
- navit_float scale; /* Scale factor */
- int scale_shift;
- int order;
- int order_base;
+ navit_float im00,im01,im02; /* inverse 3d transformation matrix */
+ navit_float im10,im11,im12;
+ navit_float im20,im21,im22;
+ struct map_selection *map_sel;
+ struct map_selection *screen_sel;
+ struct point screen_center;
+ int screen_dist;
+ int offx,offy,offz;
+ int znear,zfar;
+ struct coord map_center; /* Center of source rectangle */
+ enum projection pro;
+ navit_float scale; /* Scale factor */
+ int scale_shift;
+ int order;
+ int order_base;
};
#ifdef ENABLE_ROLL
@@ -98,253 +98,239 @@ struct transformation {
#endif
static void
-transform_set_screen_dist(struct transformation *t, int dist)
-{
- t->screen_dist=dist;
- t->xscale3d=dist;
- t->yscale3d=dist;
- t->wscale3d=dist << POST_SHIFT;
+transform_set_screen_dist(struct transformation *t, int dist) {
+ t->screen_dist=dist;
+ t->xscale3d=dist;
+ t->yscale3d=dist;
+ t->wscale3d=dist << POST_SHIFT;
}
static void
-transform_setup_matrix(struct transformation *t)
-{
- navit_float det;
- navit_float fac;
- navit_float yawc=navit_cos(-M_PI*t->yaw/180);
- navit_float yaws=navit_sin(-M_PI*t->yaw/180);
- navit_float pitchc=navit_cos(-M_PI*t->pitch/180);
- navit_float pitchs=navit_sin(-M_PI*t->pitch/180);
-#ifdef ENABLE_ROLL
- navit_float rollc=navit_cos(M_PI*t->roll/180);
- navit_float rolls=navit_sin(M_PI*t->roll/180);
+transform_setup_matrix(struct transformation *t) {
+ navit_float det;
+ navit_float fac;
+ navit_float yawc=navit_cos(-M_PI*t->yaw/180);
+ navit_float yaws=navit_sin(-M_PI*t->yaw/180);
+ navit_float pitchc=navit_cos(-M_PI*t->pitch/180);
+ navit_float pitchs=navit_sin(-M_PI*t->pitch/180);
+#ifdef ENABLE_ROLL
+ navit_float rollc=navit_cos(M_PI*t->roll/180);
+ navit_float rolls=navit_sin(M_PI*t->roll/180);
#else
- navit_float rollc=1;
- navit_float rolls=0;
+ navit_float rollc=1;
+ navit_float rolls=0;
#endif
- int scale=t->scale;
- int order_dir=-1;
-
- dbg(lvl_debug,"yaw=%d pitch=%d center=0x%x,0x%x", t->yaw, t->pitch, t->map_center.x, t->map_center.y);
- t->znear=1 << POST_SHIFT;
- t->zfar=300*t->znear;
- t->scale_shift=0;
- t->order=t->order_base;
- if (t->scale >= 1) {
- scale=t->scale;
- } else {
- scale=1.0/t->scale;
- order_dir=1;
- }
- while (scale > 1) {
- if (order_dir < 0)
- t->scale_shift++;
- t->order+=order_dir;
- scale >>= 1;
- }
- fac=(1 << POST_SHIFT) * (1 << t->scale_shift) / t->scale;
- dbg(lvl_debug,"scale_shift=%d order=%d scale=%f fac=%f", t->scale_shift, t->order,t->scale,fac);
-
- t->m00=rollc*yawc*fac;
- t->m01=rollc*yaws*fac;
- t->m02=-rolls*fac;
- t->m10=(pitchs*rolls*yawc-pitchc*yaws)*(-fac);
- t->m11=(pitchs*rolls*yaws+pitchc*yawc)*(-fac);
- t->m12=pitchs*rollc*(-fac);
- t->m20=(pitchc*rolls*yawc+pitchs*yaws)*fac;
- t->m21=(pitchc*rolls*yaws-pitchs*yawc)*fac;
- t->m22=pitchc*rollc*fac;
-
- t->offx=t->screen_center.x;
- t->offy=t->screen_center.y;
- if (t->pitch) {
- t->ddd=1;
- t->offz=t->screen_dist;
- dbg(lvl_debug,"near %d far %d",t->znear,t->zfar);
- t->xscale=t->xscale3d;
- t->yscale=t->yscale3d;
- t->wscale=t->wscale3d;
- } else {
- t->ddd=0;
- t->offz=0;
- t->xscale=1;
- t->yscale=1;
- t->wscale=1;
- }
- det=(navit_float)t->m00*(navit_float)t->m11*(navit_float)t->m22+
- (navit_float)t->m01*(navit_float)t->m12*(navit_float)t->m20+
- (navit_float)t->m02*(navit_float)t->m10*(navit_float)t->m21-
- (navit_float)t->m02*(navit_float)t->m11*(navit_float)t->m20-
- (navit_float)t->m01*(navit_float)t->m10*(navit_float)t->m22-
- (navit_float)t->m00*(navit_float)t->m12*(navit_float)t->m21;
-
- t->im00=(t->m11*t->m22-t->m12*t->m21)/det;
- t->im01=(t->m02*t->m21-t->m01*t->m22)/det;
- t->im02=(t->m01*t->m12-t->m02*t->m11)/det;
- t->im10=(t->m12*t->m20-t->m10*t->m22)/det;
- t->im11=(t->m00*t->m22-t->m02*t->m20)/det;
- t->im12=(t->m02*t->m10-t->m00*t->m12)/det;
- t->im20=(t->m10*t->m21-t->m11*t->m20)/det;
- t->im21=(t->m01*t->m20-t->m00*t->m21)/det;
- t->im22=(t->m00*t->m11-t->m01*t->m10)/det;
+ int scale=t->scale;
+ int order_dir=-1;
+
+ dbg(lvl_debug,"yaw=%d pitch=%d center=0x%x,0x%x", t->yaw, t->pitch, t->map_center.x, t->map_center.y);
+ t->znear=1 << POST_SHIFT;
+ t->zfar=300*t->znear;
+ t->scale_shift=0;
+ t->order=t->order_base;
+ if (t->scale >= 1) {
+ scale=t->scale;
+ } else {
+ scale=1.0/t->scale;
+ order_dir=1;
+ }
+ while (scale > 1) {
+ if (order_dir < 0)
+ t->scale_shift++;
+ t->order+=order_dir;
+ scale >>= 1;
+ }
+ fac=(1 << POST_SHIFT) * (1 << t->scale_shift) / t->scale;
+ dbg(lvl_debug,"scale_shift=%d order=%d scale=%f fac=%f", t->scale_shift, t->order,t->scale,fac);
+
+ t->m00=rollc*yawc*fac;
+ t->m01=rollc*yaws*fac;
+ t->m02=-rolls*fac;
+ t->m10=(pitchs*rolls*yawc-pitchc*yaws)*(-fac);
+ t->m11=(pitchs*rolls*yaws+pitchc*yawc)*(-fac);
+ t->m12=pitchs*rollc*(-fac);
+ t->m20=(pitchc*rolls*yawc+pitchs*yaws)*fac;
+ t->m21=(pitchc*rolls*yaws-pitchs*yawc)*fac;
+ t->m22=pitchc*rollc*fac;
+
+ t->offx=t->screen_center.x;
+ t->offy=t->screen_center.y;
+ if (t->pitch) {
+ t->ddd=1;
+ t->offz=t->screen_dist;
+ dbg(lvl_debug,"near %d far %d",t->znear,t->zfar);
+ t->xscale=t->xscale3d;
+ t->yscale=t->yscale3d;
+ t->wscale=t->wscale3d;
+ } else {
+ t->ddd=0;
+ t->offz=0;
+ t->xscale=1;
+ t->yscale=1;
+ t->wscale=1;
+ }
+ det=(navit_float)t->m00*(navit_float)t->m11*(navit_float)t->m22+
+ (navit_float)t->m01*(navit_float)t->m12*(navit_float)t->m20+
+ (navit_float)t->m02*(navit_float)t->m10*(navit_float)t->m21-
+ (navit_float)t->m02*(navit_float)t->m11*(navit_float)t->m20-
+ (navit_float)t->m01*(navit_float)t->m10*(navit_float)t->m22-
+ (navit_float)t->m00*(navit_float)t->m12*(navit_float)t->m21;
+
+ t->im00=(t->m11*t->m22-t->m12*t->m21)/det;
+ t->im01=(t->m02*t->m21-t->m01*t->m22)/det;
+ t->im02=(t->m01*t->m12-t->m02*t->m11)/det;
+ t->im10=(t->m12*t->m20-t->m10*t->m22)/det;
+ t->im11=(t->m00*t->m22-t->m02*t->m20)/det;
+ t->im12=(t->m02*t->m10-t->m00*t->m12)/det;
+ t->im20=(t->m10*t->m21-t->m11*t->m20)/det;
+ t->im21=(t->m01*t->m20-t->m00*t->m21)/det;
+ t->im22=(t->m00*t->m11-t->m01*t->m10)/det;
}
struct transformation *
-transform_new(struct pcoord *center, int scale, int yaw)
-{
- struct transformation *this_;
+transform_new(struct pcoord *center, int scale, int yaw) {
+ struct transformation *this_;
- this_=g_new0(struct transformation, 1);
- transform_set_screen_dist(this_, 100);
- this_->order_base=14;
- this_->pro=center->pro;
- this_->map_center.x=center->x;
- this_->map_center.y=center->y;
- this_->scale=scale/16.0;
- transform_set_yaw(this_, yaw);
- return this_;
+ this_=g_new0(struct transformation, 1);
+ transform_set_screen_dist(this_, 100);
+ this_->order_base=14;
+ this_->pro=center->pro;
+ this_->map_center.x=center->x;
+ this_->map_center.y=center->y;
+ this_->scale=scale/16.0;
+ transform_set_yaw(this_, yaw);
+ return this_;
}
int
-transform_get_hog(struct transformation *this_)
-{
- return HOG(*this_);
+transform_get_hog(struct transformation *this_) {
+ return HOG(*this_);
}
void
-transform_set_hog(struct transformation *this_, int hog)
-{
+transform_set_hog(struct transformation *this_, int hog) {
#ifdef ENABLE_ROLL
- this_->hog=hog;
+ this_->hog=hog;
#else
- dbg(lvl_error,"not supported");
+ dbg(lvl_error,"not supported");
#endif
}
int
-transform_get_attr(struct transformation *this_, enum attr_type type, struct attr *attr, struct attr_iter *iter)
-{
- switch (type) {
+transform_get_attr(struct transformation *this_, enum attr_type type, struct attr *attr, struct attr_iter *iter) {
+ switch (type) {
#ifdef ENABLE_ROLL
- case attr_hog:
- attr->u.num=this_->hog;
- break;
+ case attr_hog:
+ attr->u.num=this_->hog;
+ break;
#endif
- default:
- return 0;
- }
- attr->type=type;
- return 1;
+ default:
+ return 0;
+ }
+ attr->type=type;
+ return 1;
}
int
-transform_set_attr(struct transformation *this_, struct attr *attr)
-{
- switch (attr->type) {
+transform_set_attr(struct transformation *this_, struct attr *attr) {
+ switch (attr->type) {
#ifdef ENABLE_ROLL
- case attr_hog:
- this_->hog=attr->u.num;
- return 1;
+ case attr_hog:
+ this_->hog=attr->u.num;
+ return 1;
#endif
- default:
- return 0;
- }
+ default:
+ return 0;
+ }
}
int
-transformation_get_order_base(struct transformation *this_)
-{
- return this_->order_base;
+transformation_get_order_base(struct transformation *this_) {
+ return this_->order_base;
}
void
-transform_set_order_base(struct transformation *this_, int order_base)
-{
- this_->order_base=order_base;
+transform_set_order_base(struct transformation *this_, int order_base) {
+ this_->order_base=order_base;
}
struct transformation *
-transform_dup(struct transformation *t)
-{
- struct transformation *ret=g_new0(struct transformation, 1);
- *ret=*t;
- ret->map_sel=map_selection_dup(t->map_sel);
- ret->screen_sel=map_selection_dup(t->screen_sel);
- return ret;
+transform_dup(struct transformation *t) {
+ struct transformation *ret=g_new0(struct transformation, 1);
+ *ret=*t;
+ ret->map_sel=map_selection_dup(t->map_sel);
+ ret->screen_sel=map_selection_dup(t->screen_sel);
+ return ret;
}
static const navit_float gar2geo_units = 360.0/(1<<24);
static const navit_float geo2gar_units = 1/(360.0/(1<<24));
void
-transform_to_geo(enum projection pro, struct coord *c, struct coord_geo *g)
-{
- int x,y,northern,zone;
- switch (pro) {
- case projection_mg:
- g->lng=c->x/6371000.0/M_PI*180;
- g->lat=navit_atan(exp(c->y/6371000.0))/M_PI*360-90;
- break;
- case projection_garmin:
- g->lng=c->x*gar2geo_units;
- g->lat=c->y*gar2geo_units;
- break;
- case projection_utm:
- x=c->x;
- y=c->y;
- northern=y >= 0;
- if (!northern) {
- y+=10000000;
- }
- zone=(x/1000000);
- x=x%1000000;
- transform_utm_to_geo(x, y, zone, northern, g);
- break;
- default:
- break;
- }
+transform_to_geo(enum projection pro, struct coord *c, struct coord_geo *g) {
+ int x,y,northern,zone;
+ switch (pro) {
+ case projection_mg:
+ g->lng=c->x/6371000.0/M_PI*180;
+ g->lat=navit_atan(exp(c->y/6371000.0))/M_PI*360-90;
+ break;
+ case projection_garmin:
+ g->lng=c->x*gar2geo_units;
+ g->lat=c->y*gar2geo_units;
+ break;
+ case projection_utm:
+ x=c->x;
+ y=c->y;
+ northern=y >= 0;
+ if (!northern) {
+ y+=10000000;
+ }
+ zone=(x/1000000);
+ x=x%1000000;
+ transform_utm_to_geo(x, y, zone, northern, g);
+ break;
+ default:
+ break;
+ }
}
void
-transform_from_geo(enum projection pro, struct coord_geo *g, struct coord *c)
-{
- switch (pro) {
- case projection_mg:
- c->x=g->lng*6371000.0*M_PI/180;
- c->y=log(navit_tan(M_PI_4+g->lat*M_PI/360))*6371000.0;
- break;
- case projection_garmin:
- c->x=g->lng*geo2gar_units;
- c->y=g->lat*geo2gar_units;
- break;
- default:
- break;
- }
+transform_from_geo(enum projection pro, struct coord_geo *g, struct coord *c) {
+ switch (pro) {
+ case projection_mg:
+ c->x=g->lng*6371000.0*M_PI/180;
+ c->y=log(navit_tan(M_PI_4+g->lat*M_PI/360))*6371000.0;
+ break;
+ case projection_garmin:
+ c->x=g->lng*geo2gar_units;
+ c->y=g->lat*geo2gar_units;
+ break;
+ default:
+ break;
+ }
}
void
-transform_from_to_count(struct coord *cfrom, enum projection from, struct coord *cto, enum projection to, int count)
-{
- struct coord_geo g;
- int i;
+transform_from_to_count(struct coord *cfrom, enum projection from, struct coord *cto, enum projection to, int count) {
+ struct coord_geo g;
+ int i;
- for (i = 0 ; i < count ; i++) {
- transform_to_geo(from, cfrom, &g);
- transform_from_geo(to, &g, cto);
- cfrom++;
- cto++;
- }
+ for (i = 0 ; i < count ; i++) {
+ transform_to_geo(from, cfrom, &g);
+ transform_from_geo(to, &g, cto);
+ cfrom++;
+ cto++;
+ }
}
void
-transform_from_to(struct coord *cfrom, enum projection from, struct coord *cto, enum projection to)
-{
- struct coord_geo g;
- transform_to_geo(from, cfrom, &g);
- transform_from_geo(to, &g, cto);
+transform_from_to(struct coord *cfrom, enum projection from, struct coord *cto, enum projection to) {
+ struct coord_geo g;
+ transform_to_geo(from, cfrom, &g);
+ transform_from_geo(to, &g, cto);
}
@@ -360,13 +346,12 @@ transform_from_to(struct coord *cfrom, enum projection from, struct coord *cto,
* @param cart Points to a structure that will receive the Cartesian coordinates
*/
void
-transform_geo_to_cart(struct coord_geo *geo, navit_float a, navit_float b, struct coord_geo_cart *cart)
-{
- navit_float n,ee=1-b*b/(a*a);
- n = a/sqrtf(1-ee*navit_sin(geo->lat)*navit_sin(geo->lat));
- cart->x=n*navit_cos(geo->lat)*navit_cos(geo->lng);
- cart->y=n*navit_cos(geo->lat)*navit_sin(geo->lng);
- cart->z=n*(1-ee)*navit_sin(geo->lat);
+transform_geo_to_cart(struct coord_geo *geo, navit_float a, navit_float b, struct coord_geo_cart *cart) {
+ navit_float n,ee=1-b*b/(a*a);
+ n = a/sqrtf(1-ee*navit_sin(geo->lat)*navit_sin(geo->lat));
+ cart->x=n*navit_cos(geo->lat)*navit_cos(geo->lng);
+ cart->y=n*navit_cos(geo->lat)*navit_sin(geo->lng);
+ cart->z=n*(1-ee)*navit_sin(geo->lat);
}
@@ -382,22 +367,19 @@ transform_geo_to_cart(struct coord_geo *geo, navit_float a, navit_float b, struc
* @param geo Points to a structure that will receive the geodetic coordinates
*/
void
-transform_cart_to_geo(struct coord_geo_cart *cart, navit_float a, navit_float b, struct coord_geo *geo)
-{
- navit_float lat,lati,n,ee=1-b*b/(a*a), lng = navit_tan(cart->y/cart->x);
+transform_cart_to_geo(struct coord_geo_cart *cart, navit_float a, navit_float b, struct coord_geo *geo) {
+ navit_float lat,lati,n,ee=1-b*b/(a*a), lng = navit_tan(cart->y/cart->x);
- lat = navit_tan(cart->z / navit_sqrt((cart->x * cart->x) + (cart->y * cart->y)));
- do
- {
- lati = lat;
+ lat = navit_tan(cart->z / navit_sqrt((cart->x * cart->x) + (cart->y * cart->y)));
+ do {
+ lati = lat;
- n = a / navit_sqrt(1-ee*navit_sin(lat)*navit_sin(lat));
- lat = navit_atan((cart->z + ee * n * navit_sin(lat)) / navit_sqrt(cart->x * cart->x + cart->y * cart->y));
- }
- while (fabs(lat - lati) >= 0.000000000000001);
+ n = a / navit_sqrt(1-ee*navit_sin(lat)*navit_sin(lat));
+ lat = navit_atan((cart->z + ee * n * navit_sin(lat)) / navit_sqrt(cart->x * cart->x + cart->y * cart->y));
+ } while (fabs(lat - lati) >= 0.000000000000001);
- geo->lng=lng/M_PI*180;
- geo->lat=lat/M_PI*180;
+ geo->lng=lng/M_PI*180;
+ geo->lat=lat/M_PI*180;
}
@@ -409,616 +391,581 @@ transform_cart_to_geo(struct coord_geo_cart *cart, navit_float a, navit_float b,
* @author Chuck Gantz- chuck.gantz@globalstar.com
*/
void
-transform_utm_to_geo(const double UTMEasting, const double UTMNorthing, int ZoneNumber, int NorthernHemisphere, struct coord_geo *geo)
-{
-//East Longitudes are positive, West longitudes are negative.
+transform_utm_to_geo(const double UTMEasting, const double UTMNorthing, int ZoneNumber, int NorthernHemisphere,
+ struct coord_geo *geo) {
+//East Longitudes are positive, West longitudes are negative.
//North latitudes are positive, South latitudes are negative
-//Lat and Long are in decimal degrees.
+//Lat and Long are in decimal degrees.
- double Lat, Long;
- double k0 = 0.99960000000000004;
- double a = 6378137;
- double eccSquared = 0.0066943799999999998;
- double eccPrimeSquared;
- double e1 = (1-sqrt(1-eccSquared))/(1+sqrt(1-eccSquared));
- double N1, T1, C1, R1, D, M;
- double LongOrigin;
- double mu, phi1Rad;
- double x, y;
- double rad2deg = 180/M_PI;
+ double Lat, Long;
+ double k0 = 0.99960000000000004;
+ double a = 6378137;
+ double eccSquared = 0.0066943799999999998;
+ double eccPrimeSquared;
+ double e1 = (1-sqrt(1-eccSquared))/(1+sqrt(1-eccSquared));
+ double N1, T1, C1, R1, D, M;
+ double LongOrigin;
+ double mu, phi1Rad;
+ double x, y;
+ double rad2deg = 180/M_PI;
- x = UTMEasting - 500000.0; //remove 500,000 meter offset for longitude
- y = UTMNorthing;
+ x = UTMEasting - 500000.0; //remove 500,000 meter offset for longitude
+ y = UTMNorthing;
- if (!NorthernHemisphere) {
- y -= 10000000.0;//remove 10,000,000 meter offset used for southern hemisphere
- }
+ if (!NorthernHemisphere) {
+ y -= 10000000.0;//remove 10,000,000 meter offset used for southern hemisphere
+ }
- LongOrigin = (ZoneNumber - 1)*6 - 180 + 3; //+3 puts origin in middle of zone
+ LongOrigin = (ZoneNumber - 1)*6 - 180 + 3; //+3 puts origin in middle of zone
- eccPrimeSquared = (eccSquared)/(1-eccSquared);
+ eccPrimeSquared = (eccSquared)/(1-eccSquared);
- M = y / k0;
- mu = M/(a*(1-eccSquared/4-3*eccSquared*eccSquared/64-5*eccSquared*eccSquared*eccSquared/256));
- phi1Rad = mu + (3*e1/2-27*e1*e1*e1/32)*sin(2*mu)
- + (21*e1*e1/16-55*e1*e1*e1*e1/32)*sin(4*mu)
- +(151*e1*e1*e1/96)*sin(6*mu);
+ M = y / k0;
+ mu = M/(a*(1-eccSquared/4-3*eccSquared*eccSquared/64-5*eccSquared*eccSquared*eccSquared/256));
+ phi1Rad = mu + (3*e1/2-27*e1*e1*e1/32)*sin(2*mu)
+ + (21*e1*e1/16-55*e1*e1*e1*e1/32)*sin(4*mu)
+ +(151*e1*e1*e1/96)*sin(6*mu);
- N1 = a/sqrt(1-eccSquared*sin(phi1Rad)*sin(phi1Rad));
- T1 = tan(phi1Rad)*tan(phi1Rad);
- C1 = eccPrimeSquared*cos(phi1Rad)*cos(phi1Rad);
- R1 = a*(1-eccSquared)/pow(1-eccSquared*sin(phi1Rad)*sin(phi1Rad), 1.5);
- D = x/(N1*k0);
+ N1 = a/sqrt(1-eccSquared*sin(phi1Rad)*sin(phi1Rad));
+ T1 = tan(phi1Rad)*tan(phi1Rad);
+ C1 = eccPrimeSquared*cos(phi1Rad)*cos(phi1Rad);
+ R1 = a*(1-eccSquared)/pow(1-eccSquared*sin(phi1Rad)*sin(phi1Rad), 1.5);
+ D = x/(N1*k0);
- Lat = phi1Rad - (N1*tan(phi1Rad)/R1)*(D*D/2-(5+3*T1+10*C1-4*C1*C1-9*eccPrimeSquared)*D*D*D*D/24
- +(61+90*T1+298*C1+45*T1*T1-252*eccPrimeSquared-3*C1*C1)*D*D*D*D*D*D/720);
- Lat = Lat * rad2deg;
+ Lat = phi1Rad - (N1*tan(phi1Rad)/R1)*(D*D/2-(5+3*T1+10*C1-4*C1*C1-9*eccPrimeSquared)*D*D*D*D/24
+ +(61+90*T1+298*C1+45*T1*T1-252*eccPrimeSquared-3*C1*C1)*D*D*D*D*D*D/720);
+ Lat = Lat * rad2deg;
- Long = (D-(1+2*T1+C1)*D*D*D/6+(5-2*C1+28*T1-3*C1*C1+8*eccPrimeSquared+24*T1*T1)
- *D*D*D*D*D/120)/cos(phi1Rad);
- Long = LongOrigin + Long * rad2deg;
+ Long = (D-(1+2*T1+C1)*D*D*D/6+(5-2*C1+28*T1-3*C1*C1+8*eccPrimeSquared+24*T1*T1)
+ *D*D*D*D*D/120)/cos(phi1Rad);
+ Long = LongOrigin + Long * rad2deg;
- geo->lat=Lat;
- geo->lng=Long;
+ geo->lat=Lat;
+ geo->lng=Long;
}
static struct coord
-transform_correct_projection(struct transformation *t, enum projection required_projection, struct coord c)
-{
- struct coord result;
- struct coord_geo g;
- if (required_projection == t->pro) {
- result=c;
- } else {
- transform_to_geo(required_projection, &c, &g);
- transform_from_geo(t->pro, &g, &result);
- }
- return result;
+transform_correct_projection(struct transformation *t, enum projection required_projection, struct coord c) {
+ struct coord result;
+ struct coord_geo g;
+ if (required_projection == t->pro) {
+ result=c;
+ } else {
+ transform_to_geo(required_projection, &c, &g);
+ transform_from_geo(t->pro, &g, &result);
+ }
+ return result;
}
static struct coord
-transform_shift_by_center_and_scale(struct transformation *t, struct coord c)
-{
- struct coord result;
- result.x = c.x - t->map_center.x;
- result.y = c.y - t->map_center.y;
- result.x >>= t->scale_shift;
- result.y >>= t->scale_shift;
- return result;
+transform_shift_by_center_and_scale(struct transformation *t, struct coord c) {
+ struct coord result;
+ result.x = c.x - t->map_center.x;
+ result.y = c.y - t->map_center.y;
+ result.x >>= t->scale_shift;
+ result.y >>= t->scale_shift;
+ return result;
}
struct coord_3d {
- int x;
- int y;
- int z;
+ int x;
+ int y;
+ int z;
};
static struct coord_3d
-transform_rotate(struct transformation *t, struct coord c)
-{
- struct coord_3d result;
- result.x=c.x*t->m00+c.y*t->m01+HOG(*t)*t->m02;
- result.y=c.x*t->m10+c.y*t->m11+HOG(*t)*t->m12;
- result.z=(c.x*t->m20+c.y*t->m21+HOG(*t)*t->m22);
- result.z+=t->offz << POST_SHIFT;
- dbg(lvl_debug, "result: (%d,%d,%d)", result.x,result.y,result.z);
- return result;
+transform_rotate(struct transformation *t, struct coord c) {
+ struct coord_3d result;
+ result.x=c.x*t->m00+c.y*t->m01+HOG(*t)*t->m02;
+ result.y=c.x*t->m10+c.y*t->m11+HOG(*t)*t->m12;
+ result.z=(c.x*t->m20+c.y*t->m21+HOG(*t)*t->m22);
+ result.z+=t->offz << POST_SHIFT;
+ dbg(lvl_debug, "result: (%d,%d,%d)", result.x,result.y,result.z);
+ return result;
}
static struct coord_3d
-transform_z_clip(struct coord_3d c, struct coord_3d c_old, int zlimit)
-{
- struct coord_3d result;
- float clip_factor = ((float)zlimit-c.z)/(c_old.z-c.z);
- dbg(lvl_debug,"in (%d,%d,%d) - (%d,%d,%d)", c.x,c.y,c.z, c_old.x,c_old.y,c_old.z);
- result.x=c.x+(c_old.x-c.x)*clip_factor;
- result.y=c.y+(c_old.y-c.y)*clip_factor;
- result.z=zlimit;
- dbg(lvl_debug,"clip result: (%d,%d,%d)", result.x, result.y, result.z);
- return result;
+transform_z_clip(struct coord_3d c, struct coord_3d c_old, int zlimit) {
+ struct coord_3d result;
+ float clip_factor = ((float)zlimit-c.z)/(c_old.z-c.z);
+ dbg(lvl_debug,"in (%d,%d,%d) - (%d,%d,%d)", c.x,c.y,c.z, c_old.x,c_old.y,c_old.z);
+ result.x=c.x+(c_old.x-c.x)*clip_factor;
+ result.y=c.y+(c_old.y-c.y)*clip_factor;
+ result.z=zlimit;
+ dbg(lvl_debug,"clip result: (%d,%d,%d)", result.x, result.y, result.z);
+ return result;
}
static struct point
-transform_project_onto_view_plane(struct transformation *t, struct coord_3d c)
-{
- struct point result;
+transform_project_onto_view_plane(struct transformation *t, struct coord_3d c) {
+ struct point result;
#if 0
- dbg(lvl_debug,"z=%d",c.z);
+ dbg(lvl_debug,"z=%d",c.z);
#endif
- result.x = (long long)c.x*t->xscale/c.z;
- result.y = (long long)c.y*t->yscale/c.z;
- return result;
+ result.x = (long long)c.x*t->xscale/c.z;
+ result.y = (long long)c.y*t->yscale/c.z;
+ return result;
}
static int
-transform_points_too_close(struct point screen_point, struct point screen_point_old, int mindist)
-{
- if (!mindist){
- return 0;
- }
- // approximation of Euclidean distance
- return (abs(screen_point.x - screen_point_old.x) +
- abs(screen_point.y - screen_point_old.y)) < mindist;
-}
-
-struct z_clip_result{
- struct coord_3d clipped_coord;
- int visible;
- int process_coord_again;
- int skip_coord;
+transform_points_too_close(struct point screen_point, struct point screen_point_old, int mindist) {
+ if (!mindist) {
+ return 0;
+ }
+ // approximation of Euclidean distance
+ return (abs(screen_point.x - screen_point_old.x) +
+ abs(screen_point.y - screen_point_old.y)) < mindist;
+}
+
+struct z_clip_result {
+ struct coord_3d clipped_coord;
+ int visible;
+ int process_coord_again;
+ int skip_coord;
};
static struct z_clip_result
-transform_z_clip_if_necessary(struct coord_3d coord, int zlimit, struct z_clip_result clip_result_old)
-{
- int visibility_changed;
- struct z_clip_result clip_result={{0,0}, 0, 0, 0};
- clip_result.visible=(coord.z < zlimit ? 0:1);
- visibility_changed=(clip_result_old.visible != -1)&&(clip_result.visible != clip_result_old.visible);
- if (visibility_changed) {
- clip_result.clipped_coord=transform_z_clip(coord, clip_result_old.clipped_coord, zlimit);
- } else {
- clip_result.clipped_coord=coord;
- }
- if (clip_result.visible && visibility_changed){
- // line was clipped, but current point
- // is visible -> process it again
- clip_result.process_coord_again=1;
- }else if (!clip_result.visible && !visibility_changed){
- clip_result.skip_coord=1;
- }
- return clip_result;
+transform_z_clip_if_necessary(struct coord_3d coord, int zlimit, struct z_clip_result clip_result_old) {
+ int visibility_changed;
+ struct z_clip_result clip_result= {{0,0}, 0, 0, 0};
+ clip_result.visible=(coord.z < zlimit ? 0:1);
+ visibility_changed=(clip_result_old.visible != -1)&&(clip_result.visible != clip_result_old.visible);
+ if (visibility_changed) {
+ clip_result.clipped_coord=transform_z_clip(coord, clip_result_old.clipped_coord, zlimit);
+ } else {
+ clip_result.clipped_coord=coord;
+ }
+ if (clip_result.visible && visibility_changed) {
+ // line was clipped, but current point
+ // is visible -> process it again
+ clip_result.process_coord_again=1;
+ } else if (!clip_result.visible && !visibility_changed) {
+ clip_result.skip_coord=1;
+ }
+ return clip_result;
}
int
transform(struct transformation *t, enum projection required_projection, struct coord *input,
- struct point *result, int count, int mindist, int width, int *width_result)
-{
- struct coord projected_coord, shifted_coord;
- struct coord_3d rotated_coord;
- struct point screen_point;
- int zlimit=t->znear;
- struct z_clip_result clip_result, clip_result_old={{0,0}, -1, 0, 0};
- int i,result_idx = 0,result_idx_last=0;
- dbg(lvl_debug,"count=%d", count);
- for (i=0; i < count; i++) {
- dbg(lvl_debug, "input coord %d: (%d, %d)", i, input[i].x, input[i].y);
+ struct point *result, int count, int mindist, int width, int *width_result) {
+ struct coord projected_coord, shifted_coord;
+ struct coord_3d rotated_coord;
+ struct point screen_point;
+ int zlimit=t->znear;
+ struct z_clip_result clip_result, clip_result_old= {{0,0}, -1, 0, 0};
+ int i,result_idx = 0,result_idx_last=0;
+ dbg(lvl_debug,"count=%d", count);
+ for (i=0; i < count; i++) {
+ dbg(lvl_debug, "input coord %d: (%d, %d)", i, input[i].x, input[i].y);
#if 0 /* doesn't work as wanted */
- if (i && input[i].x == input[0].x && input[i].y == input[0].y && result_idx && !width_result) {
- result[result_idx++]=result[0];
- continue;
- }
+ if (i && input[i].x == input[0].x && input[i].y == input[0].y && result_idx && !width_result) {
+ result[result_idx++]=result[0];
+ continue;
+ }
#endif
- projected_coord = transform_correct_projection(t, required_projection, input[i]);
- shifted_coord = transform_shift_by_center_and_scale(t, projected_coord);
- rotated_coord = transform_rotate(t, shifted_coord);
-
- if (t->ddd) {
- clip_result=transform_z_clip_if_necessary(rotated_coord, zlimit, clip_result_old);
- clip_result_old=clip_result;
- if(clip_result.process_coord_again){
- i--;
- } else if (clip_result.skip_coord){
- continue;
- }
+ projected_coord = transform_correct_projection(t, required_projection, input[i]);
+ shifted_coord = transform_shift_by_center_and_scale(t, projected_coord);
+ rotated_coord = transform_rotate(t, shifted_coord);
+
+ if (t->ddd) {
+ clip_result=transform_z_clip_if_necessary(rotated_coord, zlimit, clip_result_old);
+ clip_result_old=clip_result;
+ if(clip_result.process_coord_again) {
+ i--;
+ } else if (clip_result.skip_coord) {
+ continue;
+ }
#if 0
- clip_result.clipped_coord.z=2000000;
+ clip_result.clipped_coord.z=2000000;
#endif
- screen_point = transform_project_onto_view_plane(t, clip_result.clipped_coord);
- } else {
- screen_point.x = rotated_coord.x>>POST_SHIFT;
- screen_point.y = rotated_coord.y>>POST_SHIFT;
- }
- screen_point.x+=t->offx;
- screen_point.y+=t->offy;
- dbg(lvl_debug,"result: (%d, %d)", screen_point.x, screen_point.y);
-
- if (i != 0 && i != count-1 &&
- (input[i+1].x != input[0].x || input[i+1].y != input[0].y)) {
- if (transform_points_too_close(screen_point, result[result_idx_last], mindist)){
- continue;
- }
- }
- result[result_idx]=screen_point;
- if (width_result) {
- if (t->ddd) {
- dbg(lvl_debug,"width %d * %d / %d",width,t->wscale,clip_result.clipped_coord.z);
- width_result[result_idx]=width*t->wscale/clip_result.clipped_coord.z;
- } else
- width_result[result_idx]=width;
- }
- result_idx_last=result_idx;
- result_idx++;
- }
- return result_idx;
+ screen_point = transform_project_onto_view_plane(t, clip_result.clipped_coord);
+ } else {
+ screen_point.x = rotated_coord.x>>POST_SHIFT;
+ screen_point.y = rotated_coord.y>>POST_SHIFT;
+ }
+ screen_point.x+=t->offx;
+ screen_point.y+=t->offy;
+ dbg(lvl_debug,"result: (%d, %d)", screen_point.x, screen_point.y);
+
+ if (i != 0 && i != count-1 &&
+ (input[i+1].x != input[0].x || input[i+1].y != input[0].y)) {
+ if (transform_points_too_close(screen_point, result[result_idx_last], mindist)) {
+ continue;
+ }
+ }
+ result[result_idx]=screen_point;
+ if (width_result) {
+ if (t->ddd) {
+ dbg(lvl_debug,"width %d * %d / %d",width,t->wscale,clip_result.clipped_coord.z);
+ width_result[result_idx]=width*t->wscale/clip_result.clipped_coord.z;
+ } else
+ width_result[result_idx]=width;
+ }
+ result_idx_last=result_idx;
+ result_idx++;
+ }
+ return result_idx;
}
static void
-transform_apply_inverse_matrix(struct transformation *t, struct coord_geo_cart *in, struct coord_geo_cart *out)
-{
- out->x=in->x*t->im00+in->y*t->im01+in->z*t->im02;
- out->y=in->x*t->im10+in->y*t->im11+in->z*t->im12;
- out->z=in->x*t->im20+in->y*t->im21+in->z*t->im22;
+transform_apply_inverse_matrix(struct transformation *t, struct coord_geo_cart *in, struct coord_geo_cart *out) {
+ out->x=in->x*t->im00+in->y*t->im01+in->z*t->im02;
+ out->y=in->x*t->im10+in->y*t->im11+in->z*t->im12;
+ out->z=in->x*t->im20+in->y*t->im21+in->z*t->im22;
}
static int
-transform_zplane_intersection(struct coord_geo_cart *p1, struct coord_geo_cart *p2, navit_float z, struct coord_geo_cart *result)
-{
- navit_float dividend=z-p1->z;
- navit_float divisor=p2->z-p1->z;
- navit_float q;
- if (!divisor) {
- if (dividend)
- return 0; /* no intersection */
- else
- return 3; /* identical planes */
- }
- q=dividend/divisor;
- result->x=p1->x+q*(p2->x-p1->x);
- result->y=p1->y+q*(p2->y-p1->y);
- result->z=z;
- if (q >= 0 && q <= 1)
- return 1; /* intersection within [p1,p2] */
- return 2; /* intersection without [p1,p2] */
+transform_zplane_intersection(struct coord_geo_cart *p1, struct coord_geo_cart *p2, navit_float z,
+ struct coord_geo_cart *result) {
+ navit_float dividend=z-p1->z;
+ navit_float divisor=p2->z-p1->z;
+ navit_float q;
+ if (!divisor) {
+ if (dividend)
+ return 0; /* no intersection */
+ else
+ return 3; /* identical planes */
+ }
+ q=dividend/divisor;
+ result->x=p1->x+q*(p2->x-p1->x);
+ result->y=p1->y+q*(p2->y-p1->y);
+ result->z=z;
+ if (q >= 0 && q <= 1)
+ return 1; /* intersection within [p1,p2] */
+ return 2; /* intersection without [p1,p2] */
}
static void
-transform_screen_to_3d(struct transformation *t, struct point *p, navit_float z, struct coord_geo_cart *cg)
-{
- double xc,yc;
- double offz=t->offz << POST_SHIFT;
- xc=p->x - t->offx;
- yc=p->y - t->offy;
- cg->x=xc*z/t->xscale;
- cg->y=yc*z/t->yscale;
- cg->z=z-offz;
+transform_screen_to_3d(struct transformation *t, struct point *p, navit_float z, struct coord_geo_cart *cg) {
+ double xc,yc;
+ double offz=t->offz << POST_SHIFT;
+ xc=p->x - t->offx;
+ yc=p->y - t->offy;
+ cg->x=xc*z/t->xscale;
+ cg->y=yc*z/t->yscale;
+ cg->z=z-offz;
}
static int
-transform_reverse_near_far(struct transformation *t, struct point *p, struct coord *c, int near, int far)
-{
- double xc,yc;
- dbg(lvl_debug,"%d,%d",p->x,p->y);
- if (t->ddd) {
- struct coord_geo_cart nearc,farc,nears,fars,intersection;
- transform_screen_to_3d(t, p, near, &nearc);
- transform_screen_to_3d(t, p, far, &farc);
- transform_apply_inverse_matrix(t, &nearc, &nears);
- transform_apply_inverse_matrix(t, &farc, &fars);
- if (transform_zplane_intersection(&nears, &fars, HOG(*t), &intersection) != 1)
- return 0;
- xc=intersection.x;
- yc=intersection.y;
- } else {
- double xcn,ycn;
- xcn=p->x - t->offx;
- ycn=p->y - t->offy;
- xc=(xcn*t->im00+ycn*t->im01)*(1 << POST_SHIFT);
- yc=(xcn*t->im10+ycn*t->im11)*(1 << POST_SHIFT);
- }
- c->x=xc*(1 << t->scale_shift)+t->map_center.x;
- c->y=yc*(1 << t->scale_shift)+t->map_center.y;
- return 1;
+transform_reverse_near_far(struct transformation *t, struct point *p, struct coord *c, int near, int far) {
+ double xc,yc;
+ dbg(lvl_debug,"%d,%d",p->x,p->y);
+ if (t->ddd) {
+ struct coord_geo_cart nearc,farc,nears,fars,intersection;
+ transform_screen_to_3d(t, p, near, &nearc);
+ transform_screen_to_3d(t, p, far, &farc);
+ transform_apply_inverse_matrix(t, &nearc, &nears);
+ transform_apply_inverse_matrix(t, &farc, &fars);
+ if (transform_zplane_intersection(&nears, &fars, HOG(*t), &intersection) != 1)
+ return 0;
+ xc=intersection.x;
+ yc=intersection.y;
+ } else {
+ double xcn,ycn;
+ xcn=p->x - t->offx;
+ ycn=p->y - t->offy;
+ xc=(xcn*t->im00+ycn*t->im01)*(1 << POST_SHIFT);
+ yc=(xcn*t->im10+ycn*t->im11)*(1 << POST_SHIFT);
+ }
+ c->x=xc*(1 << t->scale_shift)+t->map_center.x;
+ c->y=yc*(1 << t->scale_shift)+t->map_center.y;
+ return 1;
}
int
-transform_reverse(struct transformation *t, struct point *p, struct coord *c)
-{
- return transform_reverse_near_far(t, p, c, t->znear, t->zfar);
+transform_reverse(struct transformation *t, struct point *p, struct coord *c) {
+ return transform_reverse_near_far(t, p, c, t->znear, t->zfar);
}
double
-transform_pixels_to_map_distance(struct transformation *transformation, int pixels)
-{
- struct point line_in_map_center[2];
- struct coord c[2];
- struct point screen_center=transformation->screen_center;
- // Generally, the scale will not be the same across the map
- // (for example with Mercator projection), so calculate the
- // conversion in the screen center for a reasonable average value.
- line_in_map_center[0].x=screen_center.x-pixels/2;
- line_in_map_center[1].x=screen_center.x+pixels/2;
- line_in_map_center[0].y=screen_center.y;
- line_in_map_center[1].y=screen_center.y;
- transform_reverse(transformation, &line_in_map_center[0], &c[0]);
- transform_reverse(transformation, &line_in_map_center[1], &c[1]);
- return transform_distance(transform_get_projection(transformation), &c[0], &c[1]);
+transform_pixels_to_map_distance(struct transformation *transformation, int pixels) {
+ struct point line_in_map_center[2];
+ struct coord c[2];
+ struct point screen_center=transformation->screen_center;
+ // Generally, the scale will not be the same across the map
+ // (for example with Mercator projection), so calculate the
+ // conversion in the screen center for a reasonable average value.
+ line_in_map_center[0].x=screen_center.x-pixels/2;
+ line_in_map_center[1].x=screen_center.x+pixels/2;
+ line_in_map_center[0].y=screen_center.y;
+ line_in_map_center[1].y=screen_center.y;
+ transform_reverse(transformation, &line_in_map_center[0], &c[0]);
+ transform_reverse(transformation, &line_in_map_center[1], &c[1]);
+ return transform_distance(transform_get_projection(transformation), &c[0], &c[1]);
}
enum projection
-transform_get_projection(struct transformation *this_)
-{
- return this_->pro;
+transform_get_projection(struct transformation *this_) {
+ return this_->pro;
}
void
-transform_set_projection(struct transformation *this_, enum projection pro)
-{
- this_->pro=pro;
+transform_set_projection(struct transformation *this_, enum projection pro) {
+ this_->pro=pro;
}
static int
-min4(int v1,int v2, int v3, int v4)
-{
- int res=v1;
- if (v2 < res)
- res=v2;
- if (v3 < res)
- res=v3;
- if (v4 < res)
- res=v4;
- return res;
+min4(int v1,int v2, int v3, int v4) {
+ int res=v1;
+ if (v2 < res)
+ res=v2;
+ if (v3 < res)
+ res=v3;
+ if (v4 < res)
+ res=v4;
+ return res;
}
static int
-max4(int v1,int v2, int v3, int v4)
-{
- int res=v1;
- if (v2 > res)
- res=v2;
- if (v3 > res)
- res=v3;
- if (v4 > res)
- res=v4;
- return res;
+max4(int v1,int v2, int v3, int v4) {
+ int res=v1;
+ if (v2 > res)
+ res=v2;
+ if (v3 > res)
+ res=v3;
+ if (v4 > res)
+ res=v4;
+ return res;
}
struct map_selection *
-transform_get_selection(struct transformation *this_, enum projection pro, int order)
-{
-
- struct map_selection *ret,*curri,*curro;
- struct coord_geo g;
-
- ret=map_selection_dup(this_->map_sel);
- curri=this_->map_sel;
- curro=ret;
- while (curri) {
- if (this_->pro != pro) {
- transform_to_geo(this_->pro, &curri->u.c_rect.lu, &g);
- transform_from_geo(pro, &g, &curro->u.c_rect.lu);
- dbg(lvl_debug,"%f,%f", g.lat, g.lng);
- transform_to_geo(this_->pro, &curri->u.c_rect.rl, &g);
- transform_from_geo(pro, &g, &curro->u.c_rect.rl);
- dbg(lvl_debug,": - %f,%f", g.lat, g.lng);
- }
- dbg(lvl_debug,"transform rect for %d is %d,%d - %d,%d", pro, curro->u.c_rect.lu.x, curro->u.c_rect.lu.y, curro->u.c_rect.rl.x, curro->u.c_rect.rl.y);
- curro->order+=order;
+transform_get_selection(struct transformation *this_, enum projection pro, int order) {
+
+ struct map_selection *ret,*curri,*curro;
+ struct coord_geo g;
+
+ ret=map_selection_dup(this_->map_sel);
+ curri=this_->map_sel;
+ curro=ret;
+ while (curri) {
+ if (this_->pro != pro) {
+ transform_to_geo(this_->pro, &curri->u.c_rect.lu, &g);
+ transform_from_geo(pro, &g, &curro->u.c_rect.lu);
+ dbg(lvl_debug,"%f,%f", g.lat, g.lng);
+ transform_to_geo(this_->pro, &curri->u.c_rect.rl, &g);
+ transform_from_geo(pro, &g, &curro->u.c_rect.rl);
+ dbg(lvl_debug,": - %f,%f", g.lat, g.lng);
+ }
+ dbg(lvl_debug,"transform rect for %d is %d,%d - %d,%d", pro, curro->u.c_rect.lu.x, curro->u.c_rect.lu.y,
+ curro->u.c_rect.rl.x, curro->u.c_rect.rl.y);
+ curro->order+=order;
#if 0
- curro->u.c_rect.lu.x-=500;
- curro->u.c_rect.lu.y+=500;
- curro->u.c_rect.rl.x+=500;
- curro->u.c_rect.rl.y-=500;
+ curro->u.c_rect.lu.x-=500;
+ curro->u.c_rect.lu.y+=500;
+ curro->u.c_rect.rl.x+=500;
+ curro->u.c_rect.rl.y-=500;
#endif
- curro->range=item_range_all;
- curri=curri->next;
- curro=curro->next;
- }
- return ret;
+ curro->range=item_range_all;
+ curri=curri->next;
+ curro=curro->next;
+ }
+ return ret;
}
struct coord *
-transform_center(struct transformation *this_)
-{
- return &this_->map_center;
+transform_center(struct transformation *this_) {
+ return &this_->map_center;
}
struct coord *
-transform_get_center(struct transformation *this_)
-{
- return &this_->map_center;
+transform_get_center(struct transformation *this_) {
+ return &this_->map_center;
}
void
-transform_set_center(struct transformation *this_, struct coord *c)
-{
- this_->map_center=*c;
+transform_set_center(struct transformation *this_, struct coord *c) {
+ this_->map_center=*c;
}
void
-transform_set_yaw(struct transformation *t,int yaw)
-{
- t->yaw=yaw;
- transform_setup_matrix(t);
+transform_set_yaw(struct transformation *t,int yaw) {
+ t->yaw=yaw;
+ transform_setup_matrix(t);
}
int
-transform_get_yaw(struct transformation *this_)
-{
- return this_->yaw;
+transform_get_yaw(struct transformation *this_) {
+ return this_->yaw;
}
void
-transform_set_pitch(struct transformation *this_,int pitch)
-{
- this_->pitch=pitch;
- transform_setup_matrix(this_);
+transform_set_pitch(struct transformation *this_,int pitch) {
+ this_->pitch=pitch;
+ transform_setup_matrix(this_);
}
int
-transform_get_pitch(struct transformation *this_)
-{
- return this_->pitch;
+transform_get_pitch(struct transformation *this_) {
+ return this_->pitch;
}
void
-transform_set_roll(struct transformation *this_,int roll)
-{
+transform_set_roll(struct transformation *this_,int roll) {
#ifdef ENABLE_ROLL
- this_->roll=roll;
- transform_setup_matrix(this_);
+ this_->roll=roll;
+ transform_setup_matrix(this_);
#else
- dbg(lvl_error,"not supported");
+ dbg(lvl_error,"not supported");
#endif
}
int
-transform_get_roll(struct transformation *this_)
-{
+transform_get_roll(struct transformation *this_) {
#ifdef ENABLE_ROLL
- return this_->roll;
+ return this_->roll;
#else
- return 0;
+ return 0;
#endif
}
void
-transform_set_distance(struct transformation *this_,int distance)
-{
- transform_set_screen_dist(this_, distance);
- transform_setup_matrix(this_);
+transform_set_distance(struct transformation *this_,int distance) {
+ transform_set_screen_dist(this_, distance);
+ transform_setup_matrix(this_);
}
int
-transform_get_distance(struct transformation *this_)
-{
- return this_->screen_dist;
+transform_get_distance(struct transformation *this_) {
+ return this_->screen_dist;
}
void
-transform_set_scales(struct transformation *this_, int xscale, int yscale, int wscale)
-{
- this_->xscale3d=xscale;
- this_->yscale3d=yscale;
- this_->wscale3d=wscale;
+transform_set_scales(struct transformation *this_, int xscale, int yscale, int wscale) {
+ this_->xscale3d=xscale;
+ this_->yscale3d=yscale;
+ this_->wscale3d=wscale;
}
void
-transform_set_screen_selection(struct transformation *t, struct map_selection *sel)
-{
- map_selection_destroy(t->screen_sel);
- t->screen_sel=map_selection_dup(sel);
- if (sel) {
- t->screen_center.x=(sel->u.p_rect.rl.x-sel->u.p_rect.lu.x)/2;
- t->screen_center.y=(sel->u.p_rect.rl.y-sel->u.p_rect.lu.y)/2;
- transform_setup_matrix(t);
- }
+transform_set_screen_selection(struct transformation *t, struct map_selection *sel) {
+ map_selection_destroy(t->screen_sel);
+ t->screen_sel=map_selection_dup(sel);
+ if (sel) {
+ t->screen_center.x=(sel->u.p_rect.rl.x-sel->u.p_rect.lu.x)/2;
+ t->screen_center.y=(sel->u.p_rect.rl.y-sel->u.p_rect.lu.y)/2;
+ transform_setup_matrix(t);
+ }
}
void
-transform_set_screen_center(struct transformation *t, struct point *p)
-{
- t->screen_center=*p;
+transform_set_screen_center(struct transformation *t, struct point *p) {
+ t->screen_center=*p;
}
void
-transform_get_size(struct transformation *t, int *width, int *height)
-{
- struct point_rect *r;
- if (t->screen_sel) {
- r=&t->screen_sel->u.p_rect;
- *width=r->rl.x-r->lu.x;
- *height=r->rl.y-r->lu.y;
- }
+transform_get_size(struct transformation *t, int *width, int *height) {
+ struct point_rect *r;
+ if (t->screen_sel) {
+ r=&t->screen_sel->u.p_rect;
+ *width=r->rl.x-r->lu.x;
+ *height=r->rl.y-r->lu.y;
+ }
}
void
-transform_setup_source_rect(struct transformation *t)
-{
- int i;
- struct coord screen[4];
- struct point screen_pnt[4];
- struct point_rect *pr;
- struct map_selection *ms,*msm,*next,**msm_last;
- ms=t->map_sel;
- while (ms) {
- next=ms->next;
- g_free(ms);
- ms=next;
- }
- t->map_sel=NULL;
- msm_last=&t->map_sel;
- ms=t->screen_sel;
- while (ms) {
- msm=g_new0(struct map_selection, 1);
- *msm=*ms;
- pr=&ms->u.p_rect;
- screen_pnt[0].x=pr->lu.x; /* left upper */
- screen_pnt[0].y=pr->lu.y;
- screen_pnt[1].x=pr->rl.x; /* right upper */
- screen_pnt[1].y=pr->lu.y;
- screen_pnt[2].x=pr->rl.x; /* right lower */
- screen_pnt[2].y=pr->rl.y;
- screen_pnt[3].x=pr->lu.x; /* left lower */
- screen_pnt[3].y=pr->rl.y;
- if (t->ddd) {
- struct coord_geo_cart tmp,cg[8];
- struct coord c;
- int valid=0;
- unsigned char edgenodes[]={
- 0,1,
- 1,2,
- 2,3,
- 3,0,
- 4,5,
- 5,6,
- 6,7,
- 7,4,
- 0,4,
- 1,5,
- 2,6,
- 3,7};
- for (i = 0 ; i < 8 ; i++) {
- transform_screen_to_3d(t, &screen_pnt[i%4], (i >= 4 ? t->zfar:t->znear), &tmp);
- transform_apply_inverse_matrix(t, &tmp, &cg[i]);
- }
- msm->u.c_rect.lu.x=0;
- msm->u.c_rect.lu.y=0;
- msm->u.c_rect.rl.x=0;
- msm->u.c_rect.rl.y=0;
- for (i = 0 ; i < 12 ; i++) {
- if (transform_zplane_intersection(&cg[edgenodes[i*2]], &cg[edgenodes[i*2+1]], HOG(*t), &tmp) == 1) {
- c.x=tmp.x*(1 << t->scale_shift)+t->map_center.x;
- c.y=tmp.y*(1 << t->scale_shift)+t->map_center.y;
- dbg(lvl_debug,"intersection with edge %d at 0x%x,0x%x",i,c.x,c.y);
- if (valid)
- coord_rect_extend(&msm->u.c_rect, &c);
- else {
- msm->u.c_rect.lu=c;
- msm->u.c_rect.rl=c;
- valid=1;
- }
- dbg(lvl_debug,"rect 0x%x,0x%x - 0x%x,0x%x",msm->u.c_rect.lu.x,msm->u.c_rect.lu.y,msm->u.c_rect.rl.x,msm->u.c_rect.rl.y);
- }
- }
- } else {
- for (i = 0 ; i < 4 ; i++) {
- transform_reverse(t, &screen_pnt[i], &screen[i]);
- dbg(lvl_debug,"map(%d) %d,%d=0x%x,0x%x", i,screen_pnt[i].x, screen_pnt[i].y, screen[i].x, screen[i].y);
- }
- msm->u.c_rect.lu.x=min4(screen[0].x,screen[1].x,screen[2].x,screen[3].x);
- msm->u.c_rect.rl.x=max4(screen[0].x,screen[1].x,screen[2].x,screen[3].x);
- msm->u.c_rect.rl.y=min4(screen[0].y,screen[1].y,screen[2].y,screen[3].y);
- msm->u.c_rect.lu.y=max4(screen[0].y,screen[1].y,screen[2].y,screen[3].y);
- }
- dbg(lvl_debug,"%dx%d", msm->u.c_rect.rl.x-msm->u.c_rect.lu.x,
- msm->u.c_rect.lu.y-msm->u.c_rect.rl.y);
- *msm_last=msm;
- msm_last=&msm->next;
- ms=ms->next;
- }
+transform_setup_source_rect(struct transformation *t) {
+ int i;
+ struct coord screen[4];
+ struct point screen_pnt[4];
+ struct point_rect *pr;
+ struct map_selection *ms,*msm,*next,**msm_last;
+ ms=t->map_sel;
+ while (ms) {
+ next=ms->next;
+ g_free(ms);
+ ms=next;
+ }
+ t->map_sel=NULL;
+ msm_last=&t->map_sel;
+ ms=t->screen_sel;
+ while (ms) {
+ msm=g_new0(struct map_selection, 1);
+ *msm=*ms;
+ pr=&ms->u.p_rect;
+ screen_pnt[0].x=pr->lu.x; /* left upper */
+ screen_pnt[0].y=pr->lu.y;
+ screen_pnt[1].x=pr->rl.x; /* right upper */
+ screen_pnt[1].y=pr->lu.y;
+ screen_pnt[2].x=pr->rl.x; /* right lower */
+ screen_pnt[2].y=pr->rl.y;
+ screen_pnt[3].x=pr->lu.x; /* left lower */
+ screen_pnt[3].y=pr->rl.y;
+ if (t->ddd) {
+ struct coord_geo_cart tmp,cg[8];
+ struct coord c;
+ int valid=0;
+ unsigned char edgenodes[]= {
+ 0,1,
+ 1,2,
+ 2,3,
+ 3,0,
+ 4,5,
+ 5,6,
+ 6,7,
+ 7,4,
+ 0,4,
+ 1,5,
+ 2,6,
+ 3,7
+ };
+ for (i = 0 ; i < 8 ; i++) {
+ transform_screen_to_3d(t, &screen_pnt[i%4], (i >= 4 ? t->zfar:t->znear), &tmp);
+ transform_apply_inverse_matrix(t, &tmp, &cg[i]);
+ }
+ msm->u.c_rect.lu.x=0;
+ msm->u.c_rect.lu.y=0;
+ msm->u.c_rect.rl.x=0;
+ msm->u.c_rect.rl.y=0;
+ for (i = 0 ; i < 12 ; i++) {
+ if (transform_zplane_intersection(&cg[edgenodes[i*2]], &cg[edgenodes[i*2+1]], HOG(*t), &tmp) == 1) {
+ c.x=tmp.x*(1 << t->scale_shift)+t->map_center.x;
+ c.y=tmp.y*(1 << t->scale_shift)+t->map_center.y;
+ dbg(lvl_debug,"intersection with edge %d at 0x%x,0x%x",i,c.x,c.y);
+ if (valid)
+ coord_rect_extend(&msm->u.c_rect, &c);
+ else {
+ msm->u.c_rect.lu=c;
+ msm->u.c_rect.rl=c;
+ valid=1;
+ }
+ dbg(lvl_debug,"rect 0x%x,0x%x - 0x%x,0x%x",msm->u.c_rect.lu.x,msm->u.c_rect.lu.y,msm->u.c_rect.rl.x,msm->u.c_rect.rl.y);
+ }
+ }
+ } else {
+ for (i = 0 ; i < 4 ; i++) {
+ transform_reverse(t, &screen_pnt[i], &screen[i]);
+ dbg(lvl_debug,"map(%d) %d,%d=0x%x,0x%x", i,screen_pnt[i].x, screen_pnt[i].y, screen[i].x, screen[i].y);
+ }
+ msm->u.c_rect.lu.x=min4(screen[0].x,screen[1].x,screen[2].x,screen[3].x);
+ msm->u.c_rect.rl.x=max4(screen[0].x,screen[1].x,screen[2].x,screen[3].x);
+ msm->u.c_rect.rl.y=min4(screen[0].y,screen[1].y,screen[2].y,screen[3].y);
+ msm->u.c_rect.lu.y=max4(screen[0].y,screen[1].y,screen[2].y,screen[3].y);
+ }
+ dbg(lvl_debug,"%dx%d", msm->u.c_rect.rl.x-msm->u.c_rect.lu.x,
+ msm->u.c_rect.lu.y-msm->u.c_rect.rl.y);
+ *msm_last=msm;
+ msm_last=&msm->next;
+ ms=ms->next;
+ }
}
long
-transform_get_scale(struct transformation *t)
-{
- return (int)(t->scale*16);
+transform_get_scale(struct transformation *t) {
+ return (int)(t->scale*16);
}
void
-transform_set_scale(struct transformation *t, long scale)
-{
- t->scale=scale/16.0;
- transform_setup_matrix(t);
+transform_set_scale(struct transformation *t, long scale) {
+ t->scale=scale/16.0;
+ transform_setup_matrix(t);
}
int
-transform_get_order(struct transformation *t)
-{
- dbg(lvl_debug,"order %d", t->order);
- return t->order;
+transform_get_order(struct transformation *t) {
+ dbg(lvl_debug,"order %d", t->order);
+ return t->order;
}
@@ -1028,163 +975,157 @@ transform_get_order(struct transformation *t)
#define minf(a,b) ((a) < (b) ? (a) : (b))
static double
-transform_distance_garmin(struct coord *c1, struct coord *c2)
-{
+transform_distance_garmin(struct coord *c1, struct coord *c2) {
#ifdef USE_HALVESINE
- static const int earth_radius = 6371*1000; //m change accordingly
+ static const int earth_radius = 6371*1000; //m change accordingly
// static const int earth_radius = 3960; //miles
-
+
//Point 1 cords
- navit_float lat1 = GC2RAD(c1->y);
- navit_float long1 = GC2RAD(c1->x);
+ navit_float lat1 = GC2RAD(c1->y);
+ navit_float long1 = GC2RAD(c1->x);
//Point 2 cords
- navit_float lat2 = GC2RAD(c2->y);
- navit_float long2 = GC2RAD(c2->x);
+ navit_float lat2 = GC2RAD(c2->y);
+ navit_float long2 = GC2RAD(c2->x);
//Haversine Formula
- navit_float dlong = long2-long1;
- navit_float dlat = lat2-lat1;
-
- navit_float sinlat = navit_sin(dlat/2);
- navit_float sinlong = navit_sin(dlong/2);
-
- navit_float a=(sinlat*sinlat)+navit_cos(lat1)*navit_cos(lat2)*(sinlong*sinlong);
- navit_float c=2*navit_asin(minf(1,navit_sqrt(a)));
+ navit_float dlong = long2-long1;
+ navit_float dlat = lat2-lat1;
+
+ navit_float sinlat = navit_sin(dlat/2);
+ navit_float sinlong = navit_sin(dlong/2);
+
+ navit_float a=(sinlat*sinlat)+navit_cos(lat1)*navit_cos(lat2)*(sinlong*sinlong);
+ navit_float c=2*navit_asin(minf(1,navit_sqrt(a)));
#ifdef AVOID_FLOAT
- return round(earth_radius*c);
+ return round(earth_radius*c);
#else
- return earth_radius*c;
+ return earth_radius*c;
#endif
#else
#define GMETER 2.3887499999999999
- navit_float dx,dy;
- dx=c1->x-c2->x;
- dy=c1->y-c2->y;
- return navit_sqrt(dx*dx+dy*dy)*GMETER;
+ navit_float dx,dy;
+ dx=c1->x-c2->x;
+ dy=c1->y-c2->y;
+ return navit_sqrt(dx*dx+dy*dy)*GMETER;
#undef GMETER
#endif
}
double
-transform_scale(int y)
-{
- struct coord c;
- struct coord_geo g;
- c.x=0;
- c.y=y;
- transform_to_geo(projection_mg, &c, &g);
- return 1/navit_cos(g.lat/180*M_PI);
+transform_scale(int y) {
+ struct coord c;
+ struct coord_geo g;
+ c.x=0;
+ c.y=y;
+ transform_to_geo(projection_mg, &c, &g);
+ return 1/navit_cos(g.lat/180*M_PI);
}
#ifdef AVOID_FLOAT
static int
-tab_sqrt[]={14142,13379,12806,12364,12018,11741,11517,11333,11180,11051,10943,10850,10770,10701,10640,10587,10540,10499,10462,10429,10400,10373,10349,10327,10307,10289,10273,10257,10243,10231,10219,10208};
+tab_sqrt[]= {14142,13379,12806,12364,12018,11741,11517,11333,11180,11051,10943,10850,10770,10701,10640,10587,10540,10499,10462,10429,10400,10373,10349,10327,10307,10289,10273,10257,10243,10231,10219,10208};
static int tab_int_step = 0x20000;
-static int tab_int_scale[]={10000,10002,10008,10019,10033,10052,10076,10103,10135,10171,10212,10257,10306,10359,10417,10479,10546,10617,10693,10773,10858,10947,11041,11140,11243,11352,11465,11582,11705,11833,11965,12103,12246,12394,12547,12706,12870,13039,13214,13395,13581,13773,13971,14174,14384,14600,14822,15050,15285,15526,15774,16028,16289,16557,16832,17114,17404,17700,18005,18316,18636,18964,19299,19643,19995,20355,20724,21102,21489,21885,22290,22705,23129,23563,24007,24461,24926,25401,25886,26383,26891};
-
-int transform_int_scale(int y)
-{
- int i,size = sizeof(tab_int_scale)/sizeof(int);
- if (y < 0)
- y=-y;
- i=y/tab_int_step;
- if (i < size-1)
- return tab_int_scale[i]+((tab_int_scale[i+1]-tab_int_scale[i])*(y-i*tab_int_step))/tab_int_step;
- return tab_int_scale[size-1];
+static int tab_int_scale[]= {10000,10002,10008,10019,10033,10052,10076,10103,10135,10171,10212,10257,10306,10359,10417,10479,10546,10617,10693,10773,10858,10947,11041,11140,11243,11352,11465,11582,11705,11833,11965,12103,12246,12394,12547,12706,12870,13039,13214,13395,13581,13773,13971,14174,14384,14600,14822,15050,15285,15526,15774,16028,16289,16557,16832,17114,17404,17700,18005,18316,18636,18964,19299,19643,19995,20355,20724,21102,21489,21885,22290,22705,23129,23563,24007,24461,24926,25401,25886,26383,26891};
+
+int transform_int_scale(int y) {
+ int i,size = sizeof(tab_int_scale)/sizeof(int);
+ if (y < 0)
+ y=-y;
+ i=y/tab_int_step;
+ if (i < size-1)
+ return tab_int_scale[i]+((tab_int_scale[i+1]-tab_int_scale[i])*(y-i*tab_int_step))/tab_int_step;
+ return tab_int_scale[size-1];
}
#endif
double
-transform_distance(enum projection pro, struct coord *c1, struct coord *c2)
-{
- if (pro == projection_mg) {
-#ifndef AVOID_FLOAT
- double dx,dy,scale=transform_scale((c1->y+c2->y)/2);
- dx=c1->x-c2->x;
- dy=c1->y-c2->y;
- return sqrt(dx*dx+dy*dy)/scale;
+transform_distance(enum projection pro, struct coord *c1, struct coord *c2) {
+ if (pro == projection_mg) {
+#ifndef AVOID_FLOAT
+ double dx,dy,scale=transform_scale((c1->y+c2->y)/2);
+ dx=c1->x-c2->x;
+ dy=c1->y-c2->y;
+ return sqrt(dx*dx+dy*dy)/scale;
#else
- int dx,dy,f,scale=transform_int_scale((c1->y+c2->y)/2);
- dx=c1->x-c2->x;
- dy=c1->y-c2->y;
- if (dx < 0)
- dx=-dx;
- if (dy < 0)
- dy=-dy;
- while (dx > 20000 || dy > 20000) {
- dx/=10;
- dy/=10;
- scale/=10;
- }
- if (! dy)
- return dx*10000/scale;
- if (! dx)
- return dy*10000/scale;
- if (dx > dy) {
- f=dx*8/dy-8;
- if (f >= 32)
- return dx*10000/scale;
- return dx*tab_sqrt[f]/scale;
- } else {
- f=dy*8/dx-8;
- if (f >= 32)
- return dy*10000/scale;
- return dy*tab_sqrt[f]/scale;
- }
+ int dx,dy,f,scale=transform_int_scale((c1->y+c2->y)/2);
+ dx=c1->x-c2->x;
+ dy=c1->y-c2->y;
+ if (dx < 0)
+ dx=-dx;
+ if (dy < 0)
+ dy=-dy;
+ while (dx > 20000 || dy > 20000) {
+ dx/=10;
+ dy/=10;
+ scale/=10;
+ }
+ if (! dy)
+ return dx*10000/scale;
+ if (! dx)
+ return dy*10000/scale;
+ if (dx > dy) {
+ f=dx*8/dy-8;
+ if (f >= 32)
+ return dx*10000/scale;
+ return dx*tab_sqrt[f]/scale;
+ } else {
+ f=dy*8/dx-8;
+ if (f >= 32)
+ return dy*10000/scale;
+ return dy*tab_sqrt[f]/scale;
+ }
#endif
- } else if (pro == projection_garmin) {
- return transform_distance_garmin(c1, c2);
- } else {
- dbg(lvl_error,"Unknown projection: %d", pro);
- return 0;
- }
+ } else if (pro == projection_garmin) {
+ return transform_distance_garmin(c1, c2);
+ } else {
+ dbg(lvl_error,"Unknown projection: %d", pro);
+ return 0;
+ }
}
void
-transform_project(enum projection pro, struct coord *c, int distance, int angle, struct coord *res)
-{
- double scale;
- switch (pro) {
- case projection_mg:
- scale=transform_scale(c->y);
- res->x=c->x+distance*sin(angle*M_PI/180)*scale;
- res->y=c->y+distance*cos(angle*M_PI/180)*scale;
- break;
- default:
- dbg(lvl_error,"Unsupported projection: %d", pro);
- return;
- }
-
+transform_project(enum projection pro, struct coord *c, int distance, int angle, struct coord *res) {
+ double scale;
+ switch (pro) {
+ case projection_mg:
+ scale=transform_scale(c->y);
+ res->x=c->x+distance*sin(angle*M_PI/180)*scale;
+ res->y=c->y+distance*cos(angle*M_PI/180)*scale;
+ break;
+ default:
+ dbg(lvl_error,"Unsupported projection: %d", pro);
+ return;
+ }
+
}
double
-transform_polyline_length(enum projection pro, struct coord *c, int count)
-{
- double ret=0;
- int i;
+transform_polyline_length(enum projection pro, struct coord *c, int count) {
+ double ret=0;
+ int i;
- for (i = 0 ; i < count-1 ; i++)
- ret+=transform_distance(pro, &c[i], &c[i+1]);
- return ret;
+ for (i = 0 ; i < count-1 ; i++)
+ ret+=transform_distance(pro, &c[i], &c[i+1]);
+ return ret;
}
static int
transform_overflow_possible_if_squared(int count, ...) {
- va_list ap;
- int i, value, result = 0;
-
- va_start (ap, count);
- for (i = 0; i < count; i++) {
- value = va_arg (ap, int);
- if (abs(value)>32767) {
- result = 1;
- }
- }
- va_end (ap);
- return result;
+ va_list ap;
+ int i, value, result = 0;
+
+ va_start (ap, count);
+ for (i = 0; i < count; i++) {
+ value = va_arg (ap, int);
+ if (abs(value)>32767) {
+ result = 1;
+ }
+ }
+ va_end (ap);
+ return result;
}
/**
@@ -1196,32 +1137,31 @@ transform_overflow_possible_if_squared(int count, ...) {
* @return The squared distance between `c1` and `c2`, or `INT_MAX` if an overflow occurs.
*/
int
-transform_distance_sq(struct coord *c1, struct coord *c2)
-{
- int dx=c1->x-c2->x;
- int dy=c1->y-c2->y;
+transform_distance_sq(struct coord *c1, struct coord *c2) {
+ int dx=c1->x-c2->x;
+ int dy=c1->y-c2->y;
- if (transform_overflow_possible_if_squared(2, dx, dy))
- return INT_MAX;
- else
- return dx*dx+dy*dy;
+ if (transform_overflow_possible_if_squared(2, dx, dy))
+ return INT_MAX;
+ else
+ return dx*dx+dy*dy;
}
navit_float
-transform_distance_sq_float(struct coord *c1, struct coord *c2)
-{
- int dx=c1->x-c2->x;
- int dy=c1->y-c2->y;
- return (navit_float)dx*dx+dy*dy;
+transform_distance_sq_float(struct coord *c1, struct coord *c2) {
+ int dx=c1->x-c2->x;
+ int dy=c1->y-c2->y;
+ return (navit_float)dx*dx+dy*dy;
}
int
-transform_distance_sq_pc(struct pcoord *c1, struct pcoord *c2)
-{
- struct coord p1,p2;
- p1.x = c1->x; p1.y = c1->y;
- p2.x = c2->x; p2.y = c2->y;
- return transform_distance_sq(&p1, &p2);
+transform_distance_sq_pc(struct pcoord *c1, struct pcoord *c2) {
+ struct coord p1,p2;
+ p1.x = c1->x;
+ p1.y = c1->y;
+ p2.x = c2->x;
+ p2.y = c2->y;
+ return transform_distance_sq(&p1, &p2);
}
/**
@@ -1236,74 +1176,72 @@ transform_distance_sq_pc(struct pcoord *c1, struct pcoord *c2)
* @return The square of the Mercator distance between `ref` and `lpnt`, or `INT_MAX` if an overflow occurred
*/
int
-transform_distance_line_sq(struct coord *l0, struct coord *l1, struct coord *ref, struct coord *lpnt)
-{
- int vx,vy,wx,wy;
- int c1,c2;
- int climit=1000000;
- struct coord l;
-
- vx=l1->x-l0->x;
- vy=l1->y-l0->y;
- wx=ref->x-l0->x;
- wy=ref->y-l0->y;
-
- if (transform_overflow_possible_if_squared(4, vx, vy, wx, wy)) {
- return INT_MAX;
- }
-
- c1=vx*wx+vy*wy;
- if ( c1 <= 0 ) {
- if (lpnt)
- *lpnt=*l0;
- return transform_distance_sq(l0, ref);
- }
- c2=vx*vx+vy*vy;
- if ( c2 <= c1 ) {
- if (lpnt)
- *lpnt=*l1;
- return transform_distance_sq(l1, ref);
- }
- while (c1 > climit || c2 > climit) {
- c1/=256;
- c2/=256;
- }
- l.x=l0->x+vx*c1/c2;
- l.y=l0->y+vy*c1/c2;
- if (lpnt)
- *lpnt=l;
- return transform_distance_sq(&l, ref);
+transform_distance_line_sq(struct coord *l0, struct coord *l1, struct coord *ref, struct coord *lpnt) {
+ int vx,vy,wx,wy;
+ int c1,c2;
+ int climit=1000000;
+ struct coord l;
+
+ vx=l1->x-l0->x;
+ vy=l1->y-l0->y;
+ wx=ref->x-l0->x;
+ wy=ref->y-l0->y;
+
+ if (transform_overflow_possible_if_squared(4, vx, vy, wx, wy)) {
+ return INT_MAX;
+ }
+
+ c1=vx*wx+vy*wy;
+ if ( c1 <= 0 ) {
+ if (lpnt)
+ *lpnt=*l0;
+ return transform_distance_sq(l0, ref);
+ }
+ c2=vx*vx+vy*vy;
+ if ( c2 <= c1 ) {
+ if (lpnt)
+ *lpnt=*l1;
+ return transform_distance_sq(l1, ref);
+ }
+ while (c1 > climit || c2 > climit) {
+ c1/=256;
+ c2/=256;
+ }
+ l.x=l0->x+vx*c1/c2;
+ l.y=l0->y+vy*c1/c2;
+ if (lpnt)
+ *lpnt=l;
+ return transform_distance_sq(&l, ref);
}
navit_float
-transform_distance_line_sq_float(struct coord *l0, struct coord *l1, struct coord *ref, struct coord *lpnt)
-{
- navit_float vx,vy,wx,wy;
- navit_float c1,c2;
- struct coord l;
-
- vx=l1->x-l0->x;
- vy=l1->y-l0->y;
- wx=ref->x-l0->x;
- wy=ref->y-l0->y;
-
- c1=vx*wx+vy*wy;
- if ( c1 <= 0 ) {
- if (lpnt)
- *lpnt=*l0;
- return transform_distance_sq_float(l0, ref);
- }
- c2=vx*vx+vy*vy;
- if ( c2 <= c1 ) {
- if (lpnt)
- *lpnt=*l1;
- return transform_distance_sq_float(l1, ref);
- }
- l.x=l0->x+vx*c1/c2;
- l.y=l0->y+vy*c1/c2;
- if (lpnt)
- *lpnt=l;
- return transform_distance_sq_float(&l, ref);
+transform_distance_line_sq_float(struct coord *l0, struct coord *l1, struct coord *ref, struct coord *lpnt) {
+ navit_float vx,vy,wx,wy;
+ navit_float c1,c2;
+ struct coord l;
+
+ vx=l1->x-l0->x;
+ vy=l1->y-l0->y;
+ wx=ref->x-l0->x;
+ wy=ref->y-l0->y;
+
+ c1=vx*wx+vy*wy;
+ if ( c1 <= 0 ) {
+ if (lpnt)
+ *lpnt=*l0;
+ return transform_distance_sq_float(l0, ref);
+ }
+ c2=vx*vx+vy*vy;
+ if ( c2 <= c1 ) {
+ if (lpnt)
+ *lpnt=*l1;
+ return transform_distance_sq_float(l1, ref);
+ }
+ l.x=l0->x+vx*c1/c2;
+ l.y=l0->y+vy*c1/c2;
+ if (lpnt)
+ *lpnt=l;
+ return transform_distance_sq_float(&l, ref);
}
/**
@@ -1319,134 +1257,127 @@ transform_distance_line_sq_float(struct coord *l0, struct coord *l1, struct coor
* @return The square of the Mercator distance between `ref` and `lpnt`, or `INT_MAX` if an overflow occurred
*/
int
-transform_distance_polyline_sq(struct coord *c, int count, struct coord *ref, struct coord *lpnt, int *pos)
-{
- int i,dist,distn;
- struct coord lp;
- if (count < 2)
- return INT_MAX;
- if (pos)
- *pos=0;
- dist=transform_distance_line_sq(&c[0], &c[1], ref, lpnt);
- for (i=2 ; i < count ; i++) {
- distn=transform_distance_line_sq(&c[i-1], &c[i], ref, &lp);
- if (distn < dist) {
- dist=distn;
- if (lpnt)
- *lpnt=lp;
- if (pos)
- *pos=i-1;
- }
- }
- return dist;
+transform_distance_polyline_sq(struct coord *c, int count, struct coord *ref, struct coord *lpnt, int *pos) {
+ int i,dist,distn;
+ struct coord lp;
+ if (count < 2)
+ return INT_MAX;
+ if (pos)
+ *pos=0;
+ dist=transform_distance_line_sq(&c[0], &c[1], ref, lpnt);
+ for (i=2 ; i < count ; i++) {
+ distn=transform_distance_line_sq(&c[i-1], &c[i], ref, &lp);
+ if (distn < dist) {
+ dist=distn;
+ if (lpnt)
+ *lpnt=lp;
+ if (pos)
+ *pos=i-1;
+ }
+ }
+ return dist;
}
int
-transform_douglas_peucker(struct coord *in, int count, int dist_sq, struct coord *out)
-{
- int ret=0;
- int i,d,dmax=0, idx=0;
- for (i = 1; i < count-2 ; i++) {
- d=transform_distance_line_sq(&in[0], &in[count-1], &in[i], NULL);
- if (d > dmax) {
- idx=i;
- dmax=d;
- }
- }
- if (dmax > dist_sq) {
- ret=transform_douglas_peucker(in, idx, dist_sq, out)-1;
- ret+=transform_douglas_peucker(in+idx, count-idx, dist_sq, out+ret);
- } else {
- if (count > 0)
- out[ret++]=in[0];
- if (count > 1)
- out[ret++]=in[count-1];
- }
- return ret;
+transform_douglas_peucker(struct coord *in, int count, int dist_sq, struct coord *out) {
+ int ret=0;
+ int i,d,dmax=0, idx=0;
+ for (i = 1; i < count-2 ; i++) {
+ d=transform_distance_line_sq(&in[0], &in[count-1], &in[i], NULL);
+ if (d > dmax) {
+ idx=i;
+ dmax=d;
+ }
+ }
+ if (dmax > dist_sq) {
+ ret=transform_douglas_peucker(in, idx, dist_sq, out)-1;
+ ret+=transform_douglas_peucker(in+idx, count-idx, dist_sq, out+ret);
+ } else {
+ if (count > 0)
+ out[ret++]=in[0];
+ if (count > 1)
+ out[ret++]=in[count-1];
+ }
+ return ret;
}
int
-transform_douglas_peucker_float(struct coord *in, int count, navit_float dist_sq, struct coord *out)
-{
- int ret=0;
- int i,idx=0;
- navit_float d,dmax=0;
- for (i = 1; i < count-2 ; i++) {
- d=transform_distance_line_sq_float(&in[0], &in[count-1], &in[i], NULL);
- if (d > dmax) {
- idx=i;
- dmax=d;
- }
- }
- if (dmax > dist_sq) {
- ret=transform_douglas_peucker_float(in, idx, dist_sq, out)-1;
- ret+=transform_douglas_peucker_float(in+idx, count-idx, dist_sq, out+ret);
- } else {
- if (count > 0)
- out[ret++]=in[0];
- if (count > 1)
- out[ret++]=in[count-1];
- }
- return ret;
+transform_douglas_peucker_float(struct coord *in, int count, navit_float dist_sq, struct coord *out) {
+ int ret=0;
+ int i,idx=0;
+ navit_float d,dmax=0;
+ for (i = 1; i < count-2 ; i++) {
+ d=transform_distance_line_sq_float(&in[0], &in[count-1], &in[i], NULL);
+ if (d > dmax) {
+ idx=i;
+ dmax=d;
+ }
+ }
+ if (dmax > dist_sq) {
+ ret=transform_douglas_peucker_float(in, idx, dist_sq, out)-1;
+ ret+=transform_douglas_peucker_float(in+idx, count-idx, dist_sq, out+ret);
+ } else {
+ if (count > 0)
+ out[ret++]=in[0];
+ if (count > 1)
+ out[ret++]=in[count-1];
+ }
+ return ret;
}
void
-transform_print_deg(double deg)
-{
- printf("%2.0f:%2.0f:%2.4f", floor(deg), fmod(deg*60,60), fmod(deg*3600,60));
+transform_print_deg(double deg) {
+ printf("%2.0f:%2.0f:%2.4f", floor(deg), fmod(deg*60,60), fmod(deg*3600,60));
}
#ifdef AVOID_FLOAT
-static int tab_atan[]={0,262,524,787,1051,1317,1584,1853,2126,2401,2679,2962,3249,3541,3839,4142,4452,4770,5095,5430,5774,6128,6494,6873,7265,7673,8098,8541,9004,9490,10000,10538};
+static int tab_atan[]= {0,262,524,787,1051,1317,1584,1853,2126,2401,2679,2962,3249,3541,3839,4142,4452,4770,5095,5430,5774,6128,6494,6873,7265,7673,8098,8541,9004,9490,10000,10538};
static int
-atan2_int_lookup(int val)
-{
- int len=sizeof(tab_atan)/sizeof(int);
- int i=len/2;
- int p=i-1;
- for (;;) {
- i>>=1;
- if (val < tab_atan[p])
- p-=i;
- else
- if (val < tab_atan[p+1])
- return p+(p>>1);
- else
- p+=i;
- }
+atan2_int_lookup(int val) {
+ int len=sizeof(tab_atan)/sizeof(int);
+ int i=len/2;
+ int p=i-1;
+ for (;;) {
+ i>>=1;
+ if (val < tab_atan[p])
+ p-=i;
+ else if (val < tab_atan[p+1])
+ return p+(p>>1);
+ else
+ p+=i;
+ }
}
static int
-atan2_int(int dx, int dy)
-{
- int mul=1,add=0,ret;
- if (! dx) {
- return dy < 0 ? 180 : 0;
- }
- if (! dy) {
- return dx < 0 ? -90 : 90;
- }
- if (dx < 0) {
- dx=-dx;
- mul=-1;
- }
- if (dy < 0) {
- dy=-dy;
- add=180*mul;
- mul*=-1;
- }
- while (dx > 20000 || dy > 20000) {
- dx/=10;
- dy/=10;
- }
- if (dx > dy) {
- ret=90-atan2_int_lookup(dy*10000/dx);
- } else {
- ret=atan2_int_lookup(dx*10000/dy);
- }
- return ret*mul+add;
+atan2_int(int dx, int dy) {
+ int mul=1,add=0,ret;
+ if (! dx) {
+ return dy < 0 ? 180 : 0;
+ }
+ if (! dy) {
+ return dx < 0 ? -90 : 90;
+ }
+ if (dx < 0) {
+ dx=-dx;
+ mul=-1;
+ }
+ if (dy < 0) {
+ dy=-dy;
+ add=180*mul;
+ mul*=-1;
+ }
+ while (dx > 20000 || dy > 20000) {
+ dx/=10;
+ dy/=10;
+ }
+ if (dx > dy) {
+ ret=90-atan2_int_lookup(dy*10000/dx);
+ } else {
+ ret=atan2_int_lookup(dx*10000/dy);
+ }
+ return ret*mul+add;
}
#endif
@@ -1460,156 +1391,147 @@ atan2_int(int dx, int dy)
* @return The bearing in degrees, {@code 0 <= result < 360}.
*/
int
-transform_get_angle_delta(struct coord *c1, struct coord *c2, int dir)
-{
- int dx=c2->x-c1->x;
- int dy=c2->y-c1->y;
-#ifndef AVOID_FLOAT
- double angle;
- angle=atan2(dx,dy);
- angle*=180/M_PI;
+transform_get_angle_delta(struct coord *c1, struct coord *c2, int dir) {
+ int dx=c2->x-c1->x;
+ int dy=c2->y-c1->y;
+#ifndef AVOID_FLOAT
+ double angle;
+ angle=atan2(dx,dy);
+ angle*=180/M_PI;
#else
- int angle;
- angle=atan2_int(dx,dy);
+ int angle;
+ angle=atan2_int(dx,dy);
#endif
- if (dir == -1)
- angle=angle-180;
- if (angle < 0)
- angle+=360;
- return angle;
+ if (dir == -1)
+ angle=angle-180;
+ if (angle < 0)
+ angle+=360;
+ return angle;
}
int
-transform_within_border(struct transformation *this_, struct point *p, int border)
-{
- struct map_selection *ms=this_->screen_sel;
- while (ms) {
- struct point_rect *r=&ms->u.p_rect;
- if (p->x >= r->lu.x+border && p->x <= r->rl.x-border &&
- p->y >= r->lu.y+border && p->y <= r->rl.y-border)
- return 1;
- ms=ms->next;
- }
- return 0;
+transform_within_border(struct transformation *this_, struct point *p, int border) {
+ struct map_selection *ms=this_->screen_sel;
+ while (ms) {
+ struct point_rect *r=&ms->u.p_rect;
+ if (p->x >= r->lu.x+border && p->x <= r->rl.x-border &&
+ p->y >= r->lu.y+border && p->y <= r->rl.y-border)
+ return 1;
+ ms=ms->next;
+ }
+ return 0;
}
int
-transform_within_dist_point(struct coord *ref, struct coord *c, int dist)
-{
- if (c->x-dist > ref->x)
- return 0;
- if (c->x+dist < ref->x)
- return 0;
- if (c->y-dist > ref->y)
- return 0;
- if (c->y+dist < ref->y)
- return 0;
- if ((c->x-ref->x)*(c->x-ref->x) + (c->y-ref->y)*(c->y-ref->y) <= dist*dist)
- return 1;
+transform_within_dist_point(struct coord *ref, struct coord *c, int dist) {
+ if (c->x-dist > ref->x)
+ return 0;
+ if (c->x+dist < ref->x)
return 0;
+ if (c->y-dist > ref->y)
+ return 0;
+ if (c->y+dist < ref->y)
+ return 0;
+ if ((c->x-ref->x)*(c->x-ref->x) + (c->y-ref->y)*(c->y-ref->y) <= dist*dist)
+ return 1;
+ return 0;
}
int
-transform_within_dist_line(struct coord *ref, struct coord *c0, struct coord *c1, int dist)
-{
- int vx,vy,wx,wy;
- int n1,n2;
- struct coord lc;
-
- if (c0->x < c1->x) {
- if (c0->x-dist > ref->x)
- return 0;
- if (c1->x+dist < ref->x)
- return 0;
- } else {
- if (c1->x-dist > ref->x)
- return 0;
- if (c0->x+dist < ref->x)
- return 0;
- }
- if (c0->y < c1->y) {
- if (c0->y-dist > ref->y)
- return 0;
- if (c1->y+dist < ref->y)
- return 0;
- } else {
- if (c1->y-dist > ref->y)
- return 0;
- if (c0->y+dist < ref->y)
- return 0;
- }
- vx=c1->x-c0->x;
- vy=c1->y-c0->y;
- wx=ref->x-c0->x;
- wy=ref->y-c0->y;
-
- n1=vx*wx+vy*wy;
- if ( n1 <= 0 )
- return transform_within_dist_point(ref, c0, dist);
- n2=vx*vx+vy*vy;
- if ( n2 <= n1 )
- return transform_within_dist_point(ref, c1, dist);
-
- lc.x=c0->x+vx*n1/n2;
- lc.y=c0->y+vy*n1/n2;
- return transform_within_dist_point(ref, &lc, dist);
+transform_within_dist_line(struct coord *ref, struct coord *c0, struct coord *c1, int dist) {
+ int vx,vy,wx,wy;
+ int n1,n2;
+ struct coord lc;
+
+ if (c0->x < c1->x) {
+ if (c0->x-dist > ref->x)
+ return 0;
+ if (c1->x+dist < ref->x)
+ return 0;
+ } else {
+ if (c1->x-dist > ref->x)
+ return 0;
+ if (c0->x+dist < ref->x)
+ return 0;
+ }
+ if (c0->y < c1->y) {
+ if (c0->y-dist > ref->y)
+ return 0;
+ if (c1->y+dist < ref->y)
+ return 0;
+ } else {
+ if (c1->y-dist > ref->y)
+ return 0;
+ if (c0->y+dist < ref->y)
+ return 0;
+ }
+ vx=c1->x-c0->x;
+ vy=c1->y-c0->y;
+ wx=ref->x-c0->x;
+ wy=ref->y-c0->y;
+
+ n1=vx*wx+vy*wy;
+ if ( n1 <= 0 )
+ return transform_within_dist_point(ref, c0, dist);
+ n2=vx*vx+vy*vy;
+ if ( n2 <= n1 )
+ return transform_within_dist_point(ref, c1, dist);
+
+ lc.x=c0->x+vx*n1/n2;
+ lc.y=c0->y+vy*n1/n2;
+ return transform_within_dist_point(ref, &lc, dist);
}
int
-transform_within_dist_polyline(struct coord *ref, struct coord *c, int count, int close, int dist)
-{
- int i;
- for (i = 0 ; i < count-1 ; i++) {
- if (transform_within_dist_line(ref,c+i,c+i+1,dist)) {
- return 1;
- }
- }
- if (close)
- return (transform_within_dist_line(ref,c,c+count-1,dist));
- return 0;
+transform_within_dist_polyline(struct coord *ref, struct coord *c, int count, int close, int dist) {
+ int i;
+ for (i = 0 ; i < count-1 ; i++) {
+ if (transform_within_dist_line(ref,c+i,c+i+1,dist)) {
+ return 1;
+ }
+ }
+ if (close)
+ return (transform_within_dist_line(ref,c,c+count-1,dist));
+ return 0;
}
int
-transform_within_dist_polygon(struct coord *ref, struct coord *c, int count, int dist)
-{
- int i, j, ci = 0;
- for (i = 0, j = count-1; i < count; j = i++) {
- if ((((c[i].y <= ref->y) && ( ref->y < c[j].y )) ||
- ((c[j].y <= ref->y) && ( ref->y < c[i].y))) &&
- (ref->x < (c[j].x - c[i].x) * (ref->y - c[i].y) / (c[j].y - c[i].y) + c[i].x))
- ci = !ci;
- }
- if (! ci) {
- if (dist)
- return transform_within_dist_polyline(ref, c, count, dist, 1);
- else
- return 0;
- }
- return 1;
+transform_within_dist_polygon(struct coord *ref, struct coord *c, int count, int dist) {
+ int i, j, ci = 0;
+ for (i = 0, j = count-1; i < count; j = i++) {
+ if ((((c[i].y <= ref->y) && ( ref->y < c[j].y )) ||
+ ((c[j].y <= ref->y) && ( ref->y < c[i].y))) &&
+ (ref->x < (c[j].x - c[i].x) * (ref->y - c[i].y) / (c[j].y - c[i].y) + c[i].x))
+ ci = !ci;
+ }
+ if (! ci) {
+ if (dist)
+ return transform_within_dist_polyline(ref, c, count, dist, 1);
+ else
+ return 0;
+ }
+ return 1;
}
int
-transform_within_dist_item(struct coord *ref, enum item_type type, struct coord *c, int count, int dist)
-{
- if (type < type_line)
- return transform_within_dist_point(ref, c, dist);
- if (type < type_area)
- return transform_within_dist_polyline(ref, c, count, 0, dist);
- return transform_within_dist_polygon(ref, c, count, dist);
+transform_within_dist_item(struct coord *ref, enum item_type type, struct coord *c, int count, int dist) {
+ if (type < type_line)
+ return transform_within_dist_point(ref, c, dist);
+ if (type < type_area)
+ return transform_within_dist_polyline(ref, c, count, 0, dist);
+ return transform_within_dist_polygon(ref, c, count, dist);
}
void
-transform_copy(struct transformation *src, struct transformation *dst)
-{
- memcpy(dst, src, sizeof(*src));
+transform_copy(struct transformation *src, struct transformation *dst) {
+ memcpy(dst, src, sizeof(*src));
}
void
-transform_destroy(struct transformation *t)
-{
- map_selection_destroy(t->map_sel);
- map_selection_destroy(t->screen_sel);
- g_free(t);
+transform_destroy(struct transformation *t) {
+ map_selection_destroy(t->map_sel);
+ map_selection_destroy(t->screen_sel);
+ g_free(t);
}
@@ -1626,7 +1548,7 @@ For the sphere
E = r Lo
N = r ln [ tan (pi/4 + L/2) ]
-where
+where
r = radius of the sphere (meters)
ln() is the natural logarithm
@@ -1641,7 +1563,7 @@ N = a * ln ( tan (pi/4 + L/2) * ( (1 - e * sin (L)) / (1 + e * sin (L))) ** (e/2
-
pi L 1 - e sin(L) 2
= a ln( tan( ---- + ---) (--------------) )
- 4 2 1 + e sin(L)
+ 4 2 1 + e sin(L)
where
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