| 36 | } |
| 37 | |
| 38 | void SceneObject::heightMapColor(double h, GLfloat* glArrayPos) const { |
| 39 | if (m_zMin >= m_zMax) |
| 40 | h = 0.5; |
| 41 | else{ |
| 42 | h = (1.0 - std::min(std::max((h-m_zMin)/ (m_zMax - m_zMin), 0.0), 1.0)) *0.8; |
| 43 | } |
| 44 | |
| 45 | // blend over HSV-values (more colors) |
| 46 | double r, g, b; |
| 47 | double s = 1.0; |
| 48 | double v = 1.0; |
| 49 | |
| 50 | h -= floor(h); |
| 51 | h *= 6; |
| 52 | int i; |
| 53 | double m, n, f; |
| 54 | |
| 55 | i = floor(h); |
| 56 | f = h - i; |
| 57 | if (!(i & 1)) |
| 58 | f = 1 - f; // if i is even |
| 59 | m = v * (1 - s); |
| 60 | n = v * (1 - s * f); |
| 61 | |
| 62 | switch (i) { |
| 63 | case 6: |
| 64 | case 0: |
| 65 | r = v; g = n; b = m; |
| 66 | break; |
| 67 | case 1: |
| 68 | r = n; g = v; b = m; |
| 69 | break; |
| 70 | case 2: |
| 71 | r = m; g = v; b = n; |
| 72 | break; |
| 73 | case 3: |
| 74 | r = m; g = n; b = v; |
| 75 | break; |
| 76 | case 4: |
| 77 | r = n; g = m; b = v; |
| 78 | break; |
| 79 | case 5: |
| 80 | r = v; g = m; b = n; |
| 81 | break; |
| 82 | default: |
| 83 | r = 1; g = 0.5; b = 0.5; |
| 84 | break; |
| 85 | } |
| 86 | |
| 87 | glArrayPos[0] = r; |
| 88 | glArrayPos[1] = g; |
| 89 | glArrayPos[2] = b; |
| 90 | } |
| 91 | |
| 92 | void SceneObject::heightMapGray(double h, GLfloat* glArrayPos) const { |
| 93 | if (m_zMin >= m_zMax) |
nothing calls this directly
no outgoing calls
no test coverage detected