63 lines
1.7 KiB
C
63 lines
1.7 KiB
C
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// This file is part of libigl, a simple c++ geometry processing library.
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//
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// Copyright (C) 2015 Alec Jacobson <alecjacobson@gmail.com>
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//
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// This Source Code Form is subject to the terms of the Mozilla Public License
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// v. 2.0. If a copy of the MPL was not distributed with this file, You can
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// obtain one at http://mozilla.org/MPL/2.0/.
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#ifndef IGL_PARULA_H
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#define IGL_PARULA_H
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#include "igl_inline.h"
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//#ifndef IGL_NO_EIGEN
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# include <Eigen/Dense>
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//#endif
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namespace igl
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{
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// PARULA like MATLAB's parula
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//
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// Inputs:
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// m number of colors
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// Outputs:
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// J m by list of RGB colors between 0 and 1
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//
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// Wrapper for directly computing [r,g,b] values for a given factor f between
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// 0 and 1
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//
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// Inputs:
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// f factor determining color value as if 0 was min and 1 was max
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// Outputs:
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// r red value
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// g green value
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// b blue value
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template <typename T>
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IGL_INLINE void parula(const T f, T * rgb);
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template <typename T>
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IGL_INLINE void parula(const T f, T & r, T & g, T & b);
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// Inputs:
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// Z #Z list of factors
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// normalize whether to normalize Z to be tightly between [0,1]
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// Outputs:
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// C #C by 3 list of rgb colors
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template <typename DerivedZ, typename DerivedC>
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IGL_INLINE void parula(
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const Eigen::MatrixBase<DerivedZ> & Z,
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const bool normalize,
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Eigen::PlainObjectBase<DerivedC> & C);
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// Inputs:
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// min_Z value at blue
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// max_Z value at red
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template <typename DerivedZ, typename DerivedC>
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IGL_INLINE void parula(
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const Eigen::MatrixBase<DerivedZ> & Z,
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const double min_Z,
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const double max_Z,
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Eigen::PlainObjectBase<DerivedC> & C);
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};
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#ifndef IGL_STATIC_LIBRARY
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# include "parula.cpp"
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#endif
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#endif
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