Merged branch 'dev_native' into lm_sla_supports_auto

Added igl library files

src/igl/colormap.h

@@ -0,0 +1,76 @@
+// This file is part of libigl, a simple c++ geometry processing library.
+// 
+// Copyright (C) 2017 Joe Graus <jgraus@gmu.edu>, Alec Jacobson <alecjacobson@gmail.com>
+// 
+// This Source Code Form is subject to the terms of the Mozilla Public License 
+// v. 2.0. If a copy of the MPL was not distributed with this file, You can 
+// obtain one at http://mozilla.org/MPL/2.0/.
+
+#ifndef IGL_COLORMAP_H
+#define IGL_COLORMAP_H
+#include "igl_inline.h"
+
+#include <Eigen/Dense>
+
+namespace igl {
+
+  enum ColorMapType
+  {
+    COLOR_MAP_TYPE_INFERNO = 0,
+    COLOR_MAP_TYPE_JET = 1,
+    COLOR_MAP_TYPE_MAGMA = 2,
+    COLOR_MAP_TYPE_PARULA = 3,
+    COLOR_MAP_TYPE_PLASMA = 4,
+    COLOR_MAP_TYPE_VIRIDIS = 5,
+    NUM_COLOR_MAP_TYPES = 6
+  };
+  // Comput [r,g,b] values of the selected colormap for
+  // a given factor f between 0 and 1
+  //
+  // Inputs:
+  //   c  colormap enum
+  //   f  factor determining color value as if 0 was min and 1 was max
+  // Outputs:
+  //   rgb  red, green, blue value
+  template <typename T>
+  IGL_INLINE void colormap(const ColorMapType cm, const T f, T * rgb);
+  // Outputs:
+  //   r  red value
+  //   g  green value
+  //   b  blue value
+  template <typename T>
+  IGL_INLINE void colormap(const ColorMapType cm, const T f, T & r, T & g, T & b);
+  // Inputs:
+  //    palette  256 by 3 array of color values
+  template <typename T>
+  IGL_INLINE void colormap(
+    const double palette[256][3], const T x_in, T & r, T & g, T & b);
+  // Inputs:
+  //   cm selected colormap palette to interpolate from
+  //   Z  #Z list of factors
+  //   normalize  whether to normalize Z to be tightly between [0,1]
+  // Outputs:
+  //   C  #C by 3 list of rgb colors
+  template <typename DerivedZ, typename DerivedC>
+  IGL_INLINE void colormap(
+    const ColorMapType cm,
+    const Eigen::MatrixBase<DerivedZ> & Z,
+    const bool normalize,
+    Eigen::PlainObjectBase<DerivedC> & C);
+  // Inputs:
+  //   min_z  value at "0"
+  //   max_z  value at "1"
+  template <typename DerivedZ, typename DerivedC>
+  IGL_INLINE void colormap(
+    const ColorMapType cm,
+    const Eigen::MatrixBase<DerivedZ> & Z,
+    const double min_Z,
+    const double max_Z,
+    Eigen::PlainObjectBase<DerivedC> & C);
+};
+
+#ifndef IGL_STATIC_LIBRARY
+#  include "colormap.cpp"
+#endif
+
+#endif