Updated wince branch to current versionwince

git-svn-id: http://svn.code.sf.net/p/navit/code/branches/wince/navit@2430 ffa7fe5e-494d-0410-b361-a75ebd5db220

1 files changed, 0 insertions, 747 deletions

diff --git a/navit/transform.c b/navit/transform.c
deleted file mode 100644
index 0abe6fbd..00000000
--- a/navit/transform.c
+++ /dev/null
@@ -1,747 +0,0 @@
-#include <assert.h>
-#include <stdio.h>
-#include <math.h>
-#include <limits.h>
-#include <glib.h>
-#include <string.h>
-#include "config.h"
-#include "coord.h"
-#include "debug.h"
-#include "map.h"
-#include "transform.h"
-#include "projection.h"
-#include "point.h"
-
-struct transformation {
-	long scale;		/* Scale factor */
-	int angle;		/* Rotation angle */
-	double cos_val,sin_val;	/* cos and sin of rotation angle */
-	enum projection pro;
-	struct map_selection *map_sel;
-	struct map_selection *screen_sel;
-	struct point screen_center;
-	struct coord map_center;	/* Center of source rectangle */
-};
-
-struct transformation *
-transform_new(void)
-{
-	struct transformation *this_;
-
-	this_=g_new0(struct transformation, 1);
-
-	return this_;
-}
-
-static const double gar2geo_units = 360.0/(1<<24);
-static const double geo2gar_units = 1/(360.0/(1<<24));
-
-void
-transform_to_geo(enum projection pro, struct coord *c, struct coord_geo *g)
-{
-	switch (pro) {
-	case projection_mg:
-		g->lng=c->x/6371000.0/M_PI*180;
-		g->lat=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;
-	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(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(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);
-}
-
-void
-transform_geo_to_cart(struct coord_geo *geo, double a, double b, struct coord_geo_cart *cart)
-{
-	double n,ee=1-b*b/(a*a);
-	n = a/sqrt(1-ee*sin(geo->lat)*sin(geo->lat));
-        cart->x=n*cos(geo->lat)*cos(geo->lng);
-        cart->y=n*cos(geo->lat)*sin(geo->lng);
-        cart->z=n*(1-ee)*sin(geo->lat);
-}
-
-void
-transform_cart_to_geo(struct coord_geo_cart *cart, double a, double b, struct coord_geo *geo)
-{
-	double lat,lati,n,ee=1-b*b/(a*a), lng = atan(cart->y/cart->x);
-
-        lat = atan(cart->z / sqrt((cart->x * cart->x) + (cart->y * cart->y)));
-        do
-        {
-                lati = lat;
-
-                n = a / sqrt(1-ee*sin(lat)*sin(lat));
-                lat = atan((cart->z + ee * n * sin(lat)) / 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;
-}
-
-
-void
-transform_datum(struct coord_geo *from, enum map_datum from_datum, struct coord_geo *to, enum map_datum to_datum)
-{
-}
-
-int
-transform(struct transformation *t, enum projection pro, struct coord *c, struct point *p, int count, int unique)
-{
-	struct coord c1;
-	int xcn, ycn; 
-	struct coord_geo g;
-#ifdef AVOID_FLOAT
-	int xc,yc;
-#else
-        double xc,yc;
-#endif
-	int i,j = 0;
-	for (i=0; i < count; i++) {
-		if (pro == t->pro) {
-			xc=c[i].x;
-			yc=c[i].y;
-		} else {
-			transform_to_geo(pro, &c[i], &g);
-			transform_from_geo(t->pro, &g, &c1);
-			xc=c1.x;
-			yc=c1.y;
-		}
-//		dbg(2,"0x%x, 0x%x - 0x%x,0x%x contains 0x%x,0x%x\n", t->r.lu.x, t->r.lu.y, t->r.rl.x, t->r.rl.y, c->x, c->y);
-//		ret=coord_rect_contains(&t->r, c);
-		xc-=t->map_center.x;
-		yc-=t->map_center.y;
-		yc=-yc;
-		if (t->angle) {
-			xcn=xc*t->cos_val+yc*t->sin_val;
-			ycn=-xc*t->sin_val+yc*t->cos_val;
-			xc=xcn;
-			yc=ycn;
-		}
-		xc=xc*16;
-		yc=yc*16;
-#ifndef AVOID_FLOAT
-		if (t->scale!=1) {
-			xc=xc/(double)(t->scale);
-			yc=yc/(double)(t->scale);
-		}
-#else
-		if (t->scale!=1) {
-			xc=xc/t->scale;
-			yc=yc/t->scale;
-		}
-#endif
-		xc+=t->screen_center.x;
-		yc+=t->screen_center.y;
-		if (xc < -0x8000)
-			xc=-0x8000;
-		if (xc > 0x7fff) {
-			xc=0x7fff;
-		}
-		if (yc < -0x8000)
-			yc=-0x8000;
-		if (yc > 0x7fff)
-			yc=0x7fff;
-		if (j == 0 || !unique || p[j-1].x != xc || p[j-1].y != yc) {
-			p[j].x=xc;
-			p[j].y=yc;
-			j++;
-		}
-	}
-	return j;
-}
-
-void
-transform_reverse(struct transformation *t, struct point *p, struct coord *c)
-{
-        int xc,yc;
-	xc=p->x;
-	yc=p->y;
-	xc-=t->screen_center.x;
-	yc-=t->screen_center.y;
-	xc=xc*t->scale/16;
-	yc=-yc*t->scale/16;
-	if (t->angle) {
-	  	int xcn, ycn; 
-	  	xcn=xc*t->cos_val+yc*t->sin_val;
-	  	ycn=-xc*t->sin_val+yc*t->cos_val;
-	  	xc=xcn;
-	  	yc=ycn;
-	}
-	c->x=t->map_center.x+xc;
-	c->y=t->map_center.y+yc;
-}
-
-enum projection
-transform_get_projection(struct transformation *this_)
-{
-	return this_->pro;
-}
-
-void
-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;
-}
-
-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;
-}
-
-struct map_selection *
-transform_get_selection(struct transformation *this_, enum projection pro, int order)
-{
-
-	struct map_selection *ret,*curri,*curro;
-	struct coord_geo g;
-	int i;
-	
-	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(1,"%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(1,": - %f,%f\n", g.lat, g.lng);
-		}
-		dbg(1,"transform rect for %d is %d,%d - %d,%d\n", 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);
-		for (i = 0 ; i < layer_end ; i++) 
-			curro->order[i]+=order;
-		curri=curri->next;
-		curro=curro->next;
-	}
-	return ret;
-}
-
-struct coord *
-transform_center(struct transformation *this_)
-{
-	return &this_->map_center;
-}
-
-void
-transform_set_angle(struct transformation *t,int angle)
-{
-        t->angle=angle;
-        t->cos_val=cos(M_PI*t->angle/180);
-        t->sin_val=sin(M_PI*t->angle/180);
-}
-
-int
-transform_get_angle(struct transformation *this_,int angle)
-{
-	return this_->angle;
-}
-
-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;
-	}
-}
-
-#if 0
-void
-transform_set_size(struct transformation *t, int width, int height)
-{
-	t->width=width;
-	t->height=height;
-}
-#endif
-
-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;
-	}
-}
-
-void
-transform_setup(struct transformation *t, struct pcoord *c, int scale, int angle)
-{
-	t->pro=c->pro;
-	t->map_center.x=c->x;
-	t->map_center.y=c->y;
-	t->scale=scale;
-	transform_set_angle(t, angle);
-}
-
-#if 0
-
-void
-transform_setup_source_rect_limit(struct transformation *t, struct coord *center, int limit)
-{
-	t->center=*center;
-	t->scale=1;
-	t->angle=0;
-	t->r.lu.x=center->x-limit;
-	t->r.rl.x=center->x+limit;
-	t->r.rl.y=center->y-limit;
-	t->r.lu.y=center->y+limit;
-}
-#endif
-
-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;
-		screen_pnt[0].y=pr->lu.y;
-		screen_pnt[1].x=pr->rl.x;
-		screen_pnt[1].y=pr->lu.y;
-		screen_pnt[2].x=pr->lu.x;
-		screen_pnt[2].y=pr->rl.y;
-		screen_pnt[3].x=pr->rl.x;
-		screen_pnt[3].y=pr->rl.y;
-		for (i = 0 ; i < 4 ; i++) {
-			transform_reverse(t, &screen_pnt[i], &screen[i]);
-		}
-		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);
-		*msm_last=msm;
-		msm_last=&msm->next;
-		ms=ms->next;
-	}
-}
-
-long
-transform_get_scale(struct transformation *t)
-{
-	return t->scale;
-}
-
-void
-transform_set_scale(struct transformation *t, long scale)
-{
-	t->scale=scale;
-}
-
-
-int
-transform_get_order(struct transformation *t)
-{
-	int scale=t->scale;
-	int order=0;
-        while (scale > 1) {
-                order++;
-                scale>>=1;
-        }
-        order=18-order;
-        if (order < 0)
-                order=0;
-	return order;
-}
-
-
-void
-transform_geo_text(struct coord_geo *g, char *buffer)
-{
-	double lng=g->lng;
-	double lat=g->lat;
-	char lng_c='E';
-	char lat_c='N';
-
-	if (lng < 0) {
-		lng=-lng;
-		lng_c='W';
-	}
-	if (lat < 0) {
-		lat=-lat;
-		lat_c='S';
-	}
-
-	sprintf(buffer,"%02.0f%07.4f%c %03.0f%07.4f%c", floor(lat), fmod(lat*60,60), lat_c, floor(lng), fmod(lng*60,60), lng_c);
-
-}
-
-#define TWOPI (M_PI*2)
-#define GC2RAD(c) ((c) * TWOPI/(1<<24))
-#define minf(a,b) ((a) < (b) ? (a) : (b))
-
-static double
-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  = 3960; //miles
- 
-//Point 1 cords
-	float lat1  = GC2RAD(c1->y);
-	float long1 = GC2RAD(c1->x);
-
-//Point 2 cords
-	float lat2  = GC2RAD(c2->y);
-	float long2 = GC2RAD(c2->x);
-
-//Haversine Formula
-	float dlong = long2-long1;
-	float dlat  = lat2-lat1;
-
-	float sinlat  = sinf(dlat/2);
-	float sinlong = sinf(dlong/2);
- 
-	float a=(sinlat*sinlat)+cosf(lat1)*cosf(lat2)*(sinlong*sinlong);
-	float c=2*asinf(minf(1,sqrt(a)));
-#ifdef AVOID_FLOAT
-	return round(earth_radius*c);
-#else
-	return earth_radius*c;
-#endif
-#else
-#define GMETER 2.3887499999999999
-	double dx,dy;
-	dx=c1->x-c2->x;
-	dy=c1->y-c2->y;
-	return 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/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};
-#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;
-#else
-	int dx,dy,f,scale=15539;
-	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 {
-		printf("Unknown projection: %d\n", pro);
-		return 0;
-	}
-}
-
-int
-transform_distance_sq(struct coord *c1, struct coord *c2)
-{
-	int dx=c1->x-c2->x;
-	int dy=c1->y-c2->y;
-
-	if (dx > 32767 || dy > 32767 || dx < -32767 || dy < -32767)
-		return INT_MAX;
-	else
-		return dx*dx+dy*dy;
-}
-
-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;
-
-	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);
-}
-
-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;
-}
-
-
-void
-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
-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 f,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
-
-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;
-#else
-	int angle;
-	angle=atan2_int(dx,dy);
-#endif
-	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;
-}
-
-/*
-Note: there are many mathematically equivalent ways to express these formulas. As usual, not all of them are computationally equivalent.
-
-L = latitude in radians (positive north)
-Lo = longitude in radians (positive east)
-E = easting (meters)
-N = northing (meters)
-
-For the sphere
-
-E = r Lo
-N = r ln [ tan (pi/4 + L/2) ]
-
-where 
-
-r = radius of the sphere (meters)
-ln() is the natural logarithm
-
-For the ellipsoid
-
-E = a Lo
-N = a * ln ( tan (pi/4 + L/2) * ( (1 - e * sin (L)) / (1 + e * sin (L))) ** (e/2)  )
-
-
-                                               e
-                                               -
-                   pi     L     1 - e sin(L)   2
-    =  a ln( tan( ---- + ---) (--------------)   )
-                   4      2     1 + e sin(L) 
-
-
-where
-
-a = the length of the semi-major axis of the ellipsoid (meters)
-e = the first eccentricity of the ellipsoid
-
-
-*/
-
-