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diff --git a/Build/source/texk/dvisvgm/dvisvgm-src/src/TriangularPatch.h b/Build/source/texk/dvisvgm/dvisvgm-src/src/TriangularPatch.h
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+++ b/Build/source/texk/dvisvgm/dvisvgm-src/src/TriangularPatch.h
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+/*************************************************************************
+** TriangularPatch.h                                                    **
+**                                                                      **
+** This file is part of dvisvgm -- the DVI to SVG converter             **
+** Copyright (C) 2005-2015 Martin Gieseking <martin.gieseking@uos.de>   **
+**                                                                      **
+** This program is free software; you can redistribute it and/or        **
+** modify it under the terms of the GNU General Public License as       **
+** published by the Free Software Foundation; either version 3 of       **
+** the License, or (at your option) any later version.                  **
+**                                                                      **
+** This program is distributed in the hope that it will be useful, but  **
+** WITHOUT ANY WARRANTY; without even the implied warranty of           **
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the         **
+** GNU General Public License for more details.                         **
+**                                                                      **
+** You should have received a copy of the GNU General Public License    **
+** along with this program; if not, see <http://www.gnu.org/licenses/>. **
+*************************************************************************/
+
+#ifndef DVISVGM_TRIANGULARPATCH_H
+#define DVISVGM_TRIANGULARPATCH_H
+
+#include "Color.h"
+#include "Pair.h"
+#include "ShadingPatch.h"
+
+class TriangularPatch : public ShadingPatch
+{
+   public:
+      TriangularPatch ();
+		TriangularPatch (Color::ColorSpace cspace) : ShadingPatch(cspace) {}
+		TriangularPatch (const PointVec &points, const ColorVec &colors, Color::ColorSpace cspace, int edgeflag, TriangularPatch *patch);
+		int psShadingType() const {return 4;}
+		DPair valueAt (double u, double v) const;
+		Color colorAt (double u, double v) const;
+		Color averageColor() const;
+		void setPoints (const PointVec &points, int edgeflag, ShadingPatch *patch);
+		void setPoints (const DPair &p1, const DPair &p2, const DPair &p3);
+		void setColors (const ColorVec &colors, int edgeflag, ShadingPatch *patch);
+		void setColors (const Color &c1, const Color &c2, const Color &c3);
+		void approximate (int gridsize, bool overlap, double delta, Callback &listener) const;
+		void getBBox (BoundingBox &bbox) const;
+		void getBoundaryPath(GraphicPath<double> &path) const;
+		int numPoints (int edgeflag) const {return edgeflag == 0 ? 3 : 1;}
+		int numColors (int edgeflag) const {return edgeflag == 0 ? 3 : 1;}
+
+	protected:
+		Color averageColor (const Color &c1, const Color &c2, const Color &c3) const;
+
+   private:
+		DPair _points[3];
+		Color _colors[3];
+};
+
+
+class LatticeTriangularPatch : public TriangularPatch
+{
+	public:
+		LatticeTriangularPatch (Color::ColorSpace cspace) : TriangularPatch(cspace) {}
+		int psShadingType() const {return 5;}
+};
+
+#endif