dust3d/third_party/libigl/include/igl/jet.h

65 lines
1.8 KiB
C++

// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2013 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_JET_H
#define IGL_JET_H
#include "igl_inline.h"
//#ifndef IGL_NO_EIGEN
# include <Eigen/Dense>
//#endif
namespace igl
{
// JET like MATLAB's jet
//
// Inputs:
// m number of colors
// Outputs:
// J m by list of RGB colors between 0 and 1
//
//#ifndef IGL_NO_EIGEN
// void jet(const int m, Eigen::MatrixXd & J);
//#endif
// Wrapper for directly computing [r,g,b] values for a given factor f between
// 0 and 1
//
// Inputs:
// f factor determining color value as if 0 was min and 1 was max
// Outputs:
// r red value
// g green value
// b blue value
template <typename T>
IGL_INLINE void jet(const T f, T * rgb);
template <typename T>
IGL_INLINE void jet(const T f, T & r, T & g, T & b);
// Inputs:
// 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 jet(
const Eigen::MatrixBase<DerivedZ> & Z,
const bool normalize,
Eigen::PlainObjectBase<DerivedC> & C);
// Inputs:
// min_z value at blue
// max_z value at red
template <typename DerivedZ, typename DerivedC>
IGL_INLINE void jet(
const Eigen::MatrixBase<DerivedZ> & Z,
const double min_Z,
const double max_Z,
Eigen::PlainObjectBase<DerivedC> & C);
};
#ifndef IGL_STATIC_LIBRARY
# include "jet.cpp"
#endif
#endif