Mercurial > hg > orthanc-stone
diff OrthancStone/Sources/Scene2D/TextureBaseSceneLayer.cpp @ 1769:a217140dd41a
refactoring
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Wed, 12 May 2021 10:26:13 +0200 |
parents | 226718777702 |
children | 073484e33bee |
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--- a/OrthancStone/Sources/Scene2D/TextureBaseSceneLayer.cpp Tue May 11 17:18:39 2021 +0200 +++ b/OrthancStone/Sources/Scene2D/TextureBaseSceneLayer.cpp Wed May 12 10:26:13 2021 +0200 @@ -160,6 +160,44 @@ } + void TextureBaseSceneLayer::SetCuttingPlaneTransform(const CoordinateSystem3D& cuttingPlane, + const Vector& origin, + const Vector& pixelOffsetX, + const Vector& pixelOffsetY) + { + double x0, y0, x1, y1, x2, y2; + cuttingPlane.ProjectPoint(x0, y0, origin); + cuttingPlane.ProjectPoint(x1, y1, origin + pixelOffsetX); + cuttingPlane.ProjectPoint(x2, y2, origin + pixelOffsetY); + + /** + + A = [ a11 a12 ; a21 a22 ] + + (1) A * (0 ; 0) + (b1 ; b2) = (x0 ; y0) + (2) A * (1 ; 0) + (b1 ; b2) = (x1 ; y1) + (3) A * (0 ; 1) + (b1 ; b2) = (x2 ; y2) + + (2-1) A * (1 ; 0) = (x1 - x0 ; y1 - y0) <=> (a11 ; a21) = (x1 - x0 ; y1 - y0) + (3-1) A * (0 ; 1) = (x2 - x0 ; y2 - y0) <=> (a12 ; a22) = (x2 - x0 ; y2 - y0) + + **/ + + Matrix m(3, 3); + m(0, 0) = x1 - x0; // a11 + m(0, 1) = x2 - x0; // a12 + m(0, 2) = x0; // b1 + m(1, 0) = y1 - y0; // a21 + m(1, 1) = y2 - y0; // a22 + m(1, 2) = y0; // b2 + m(2, 0) = 0; + m(2, 1) = 0; + m(2, 2) = 1; + + SetTransform(AffineTransform2D(m)); + } + + AffineTransform2D TextureBaseSceneLayer::GetTransform() const { if (transform_.get() == NULL)