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