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ColorSet.cc
资源名称：scanalyze-1.0.3_source_code.rar　[点击查看]
上传用户：kellyonhid
上传日期：2013-10-12
资源大小：932k
文件大小：3k
源码类别：

3D图形编程

开发平台：

Visual C++

ColorSet.cc：源码内容
  1. //############################################################
  2. // ColorUtils.cc
  3. // Matt Ginzton / Kari Pulli
  4. // Mon Jun 22 13:39:49 PDT 1998
  5. // 
  6. // Utilities for dealing with colors
  7. //############################################################
  10. #include "ColorSet.h"
  13. ColorSet::ColorSet (void)
  14. {
  15.   currentColor = 0;
  16. }
  19. static float colorSet[][3] = {
  20.     {0.9*0.75, 0.15*0.75, 0.35*0.75},
  21.     {0.0*0.75, 0.9*0.75, 0.0*0.75},
  22.     {0.0*0.75, 0.9*0.75, 0.9*0.75},
  23.     {0.9*0.75, 0.0*0.75, 0.9*0.75},
  24.     {0.9*0.75, 0.9*0.75, 0.0*0.75},
  25.     {0.0*0.75, 0.0*0.75, 0.9*0.75},
  26.     {0.9*0.75, 0.5*0.75, 0.2*0.75},
  27.     {0.5*0.75, 0.9*0.75, 0.2*0.75},
  28.     {0.2*0.75, 0.5*0.75, 0.9*0.75},
  29.     {0.5*0.75, 0.2*0.75, 0.9*0.75},
  30.     {0.9*0.75, 0.2*0.75, 0.5*0.75},
  31.     {0.2*0.75, 0.9*0.75, 0.5*0.75},
  32.     {0.9*0.75, 0.7*0.75, 0.7*0.75},
  33.     {0.7*0.75, 0.9*0.75, 0.7*0.75},
  34.     {0.7*0.75, 0.7*0.75, 0.9*0.75},
  35.     {0.7*0.75, 0.9*0.75, 0.9*0.75},
  36.     {0.9*0.75, 0.7*0.75, 0.9*0.75},
  37.     {0.9*0.75, 0.9*0.75, 0.7*0.75},
  38.     {0.6*0.75, 0.6*0.75, 0.6*0.75},
  39.     {0.6*0.75, 0.3*0.75, 0.1*0.75},
  40.     {0.6*0.75, 0.1*0.75, 0.3*0.75},
  41.     {0.3*0.75, 0.1*0.75, 0.6*0.75},
  42.     {0.3*0.75, 0.6*0.75, 0.1*0.75},
  43.     {0.1*0.75, 0.3*0.75, 0.6*0.75},
  44.     {0.1*0.75, 0.6*0.75, 0.3*0.75},
  45.     {0.4*0.75, 0.9*0.75, 0.3*0.75},
  46.     {0.2*0.75, 0.9*0.75, 0.0*0.75},
  47. };
  49. #define NUM_COLOR_SET_COLORS (sizeof(colorSet) / sizeof(colorSet[0]))
  52. void
  53. ColorSet::chooseNewColor (uchar* color)
  54. {
  55.   currentColor = currentColor % NUM_COLOR_SET_COLORS;
  56.   
  57.   color[0] = uchar(colorSet[currentColor][0]*255);
  58.   color[1] = uchar(colorSet[currentColor][1]*255);
  59.   color[2] = uchar(colorSet[currentColor][2]*255);
  60.   
  61.   currentColor++;
  62. }
  64. void
  65. pushColor (vector<uchar>& colors, int colorsize, float value)
  66. {
  67.   pushColor (colors, colorsize, 255 * value);
  68. }
  71. void
  72. pushColor (vector<uchar>& colors, int colorsize, float* values)
  73. {
  74.   uchar cvalues[3] = { values[0] * 255, values[1] * 255, values[2] * 255 };
  75.   pushColor (colors, colorsize, cvalues);
  76. }
  79. void
  80. pushColor (vector<uchar>& colors, int colorsize,
  81.    float value1, float value2, float value3)
  82. {
  83.   uchar cvalues[3] = { value1 * 255, value2 * 255, value3 * 255 };
  84.   pushColor (colors, colorsize, cvalues);
  85. }
  88. void
  89. pushColor (vector<uchar>& colors, int colorsize, uchar value)
  90. {
  91.   switch (colorsize) {
  92.   case 1:
  93.   case 2:
  94.     colors.push_back (value);
  95.     break;
  96.   case 3:
  97.   case 4:
  98.     colors.push_back (value);
  99.     colors.push_back (value);
  100.     colors.push_back (value);
  101.     break;
  102.   }
  103.  
  104.   if (colorsize == 2 || colorsize == 4) {
  105.     // TODO: hardcoded alpha for now
  106.     colors.push_back (255);
  107.   }
  108. }
  111. void
  112. pushColor (vector<uchar>& colors, int colorsize, uchar* values)
  113. {
  114.   switch (colorsize) {
  115.   case 1:
  116.   case 2:
  117.     colors.push_back ((values[0] + values[1] + values[2]) / 3);
  118.     break;
  119.   case 3:
  120.   case 4:
  121.     colors.push_back (values[0]);
  122.     colors.push_back (values[1]);
  123.     colors.push_back (values[2]);
  124.     break;
  125.   }
  126.  
  127.   if (colorsize == 2 || colorsize == 4) {
  128.     // TODO: hardcoded alpha for now
  129.     colors.push_back (255);
  130.   }
  131. }
  134. void
  135. pushColor (vector<uchar>& colors, int colorsize,
  136.    uchar* values1, uchar* values2, uchar* values3)
  137. {
  138.   pushColor (colors, colorsize,
  139.      (values1[0] + values2[0] + values3[0]) / 3,
  140.      (values1[1] + values2[1] + values3[1]) / 3,
  141.      (values1[2] + values2[2] + values3[2]) / 3);
  142. }