42 lines
935 B
C++
42 lines
935 B
C++
|
|
#include "Projection.h"
|
|
|
|
namespace msdfgen {
|
|
|
|
Projection::Projection() : scale(1), translate(0) { }
|
|
|
|
Projection::Projection(const Vector2 &scale, const Vector2 &translate) : scale(scale), translate(translate) { }
|
|
|
|
Point2 Projection::project(const Point2 &coord) const {
|
|
return scale*(coord+translate);
|
|
}
|
|
|
|
Point2 Projection::unproject(const Point2 &coord) const {
|
|
return coord/scale-translate;
|
|
}
|
|
|
|
Vector2 Projection::projectVector(const Vector2 &vector) const {
|
|
return scale*vector;
|
|
}
|
|
|
|
Vector2 Projection::unprojectVector(const Vector2 &vector) const {
|
|
return vector/scale;
|
|
}
|
|
|
|
double Projection::projectX(double x) const {
|
|
return scale.x*(x+translate.x);
|
|
}
|
|
|
|
double Projection::projectY(double y) const {
|
|
return scale.y*(y+translate.y);
|
|
}
|
|
|
|
double Projection::unprojectX(double x) const {
|
|
return x/scale.x-translate.x;
|
|
}
|
|
|
|
double Projection::unprojectY(double y) const {
|
|
return y/scale.y-translate.y;
|
|
}
|
|
|
|
}
|