1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
|
#ifndef LLMR_MAP_TRANSFORM
#define LLMR_MAP_TRANSFORM
#include <llmr/util/vec.hpp>
#include <llmr/util/mat4.hpp>
#include <llmr/util/animation.hpp>
#include <cmath>
#include <cstdint>
#include <forward_list>
namespace llmr {
struct box;
class Transform {
public:
Transform();
// Make noncopyable
Transform(const Transform&) = delete;
Transform(const Transform&&) = delete;
Transform &operator=(const Transform&) = delete;
Transform &operator=(const Transform&&) = delete;
// Animations
bool needsAnimation() const;
void updateAnimations();
// Relative changes
void moveBy(double dx, double dy);
void scaleBy(double ds, double cx, double cy);
void rotateBy(double cx, double cy, double sx, double sy, double ex, double ey);
// Absolute changes
void setScale(double scale);
void setAngle(double angle, double duration = 0);
void setZoom(double zoom);
void setLonLat(double lon, double lat);
// Getters
void matrixFor(mat4& matrix, const vec3<int32_t>& id) const;
float getZoom() const;
int32_t getIntegerZoom() const;
double getScale() const;
double getAngle() const;
void getLonLat(double& lon, double& lat) const;
// Temporary
void mapCornersToBox(uint32_t z, box& b) const;
private:
double pixel_x() const;
double pixel_y() const;
public:
// logical dimensions
uint32_t width = 0;
uint32_t height = 0;
// physical (framebuffer) dimensions
uint32_t fb_width = 0;
uint32_t fb_height = 0;
double pixelRatio = 1;
private:
double x = 0, y = 0; // pixel values of the map center in the current scale
double angle = 0;
double scale = 1;
double min_scale = pow(2, 0);
double max_scale = pow(2, 20);
// tile size
const int32_t size = 512;
// cache values for spherical mercator math
double zc, Bc, Cc;
std::forward_list<util::animation> animations;
};
}
#endif
|
