12 lines
678 B
C#
12 lines
678 B
C#
namespace Age.Engine.Model;
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/// <summary>The axis-aligned 2D reduction of AGE's row-vector object matrix. Native composition is
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/// T(-anchor) * scale * middle(rotation) * translation * T(anchor). With rotation deferred, a point is
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/// therefore anchor + (point-anchor)*scale + translation; Z remains a retained 3D channel, not opacity.</summary>
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public static class Transform2DMath
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{
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public static (double X, double Y) Apply(double x, double y, TransformState transform)
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=> (transform.AnchorX + (x - transform.AnchorX) * transform.ScaleX + transform.TranslateX,
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transform.AnchorY + (y - transform.AnchorY) * transform.ScaleY + transform.TranslateY);
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}
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