InterpolatedColorMap.cpp

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#pragma ident "$Id: InterpolatedColorMap.cpp 1644 2009-01-27 19:26:14Z ckiesch $"


//============================================================================
//
//  This file is part of GPSTk, the GPS Toolkit.
//
//  The GPSTk is free software; you can redistribute it and/or modify
//  it under the terms of the GNU Lesser General Public License as published
//  by the Free Software Foundation; either version 2.1 of the License, or
//  any later version.
//
//  The GPSTk 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 Lesser General Public License for more details.
//
//  You should have received a copy of the GNU Lesser General Public
//  License along with GPSTk; if not, write to the Free Software Foundation,
//  Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//  
//  Copyright 2004, The University of Texas at Austin
//
//============================================================================

#include "InterpolatedColorMap.hpp"

namespace vdraw
{
  InterpolatedColorMap::InterpolatedColorMap(int icols, int irows, const Palette &pp, double base)
  {
    init(icols,irows);
    p = pp;

    for(int row=0;row<rows;row++)
      for(int col=0;col<cols;col++)
        c[row][col] = base;
  }

  InterpolatedColorMap::InterpolatedColorMap(const InterpolatedColorMap &o)
  {
    init(o.cols,o.rows);
    p = o.p;

    for(int row=0;row<rows;row++)
      for(int col=0;col<cols;col++)
        c[row][col] = o.c[row][col];
  }

  InterpolatedColorMap& InterpolatedColorMap::operator=(InterpolatedColorMap o)
  {
    // o is a copy, swap the variables
    std::swap(rows,o.rows);
    std::swap(cols,o.cols);
    std::swap(p,o.p);
    std::swap(c,o.c);
    // o is destructed with the old data from this
    return *this;
  }

  void InterpolatedColorMap::init(int icols, int irows)
  {
    if(icols == 0 || irows == 0)
    {
      cols = rows = 0;
      c = 0;
      return;
    }

    cols = icols;
    rows = irows;

    // Initialize the color array
    c = new double*[rows];

    for(int row=0;row<rows;row++)
      c[row] = new double[cols];
  }

  void InterpolatedColorMap::reset()
  {
    if(c)
    {
      for(int row=0;row<rows;row++)
        delete[] c[row];
      delete[] c;
    }
    p = Palette();
    cols=rows=0;
    c=0;
  }

}

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