[2798] | 1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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[3502] | 2 | /* |
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| 3 | * Copyright (c) 2004-2013 HUBzero Foundation, LLC |
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| 4 | * |
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| 5 | */ |
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[2871] | 6 | #include <stdlib.h> |
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| 7 | #include <stdio.h> |
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| 8 | |
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[776] | 9 | #include <GL/glew.h> |
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| 10 | #include <GL/gl.h> |
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[2871] | 11 | |
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[776] | 12 | #include "Grid.h" |
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[3362] | 13 | #include "Trace.h" |
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[776] | 14 | |
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[3463] | 15 | using namespace nv::util; |
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| 16 | |
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[932] | 17 | #define NUMDIGITS 6 |
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[955] | 18 | #define GRID_TICK 0.05 |
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[932] | 19 | |
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[2844] | 20 | Grid::Grid() : |
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| 21 | xAxis("X"), |
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| 22 | yAxis("Y"), |
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| 23 | zAxis("Z"), |
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[932] | 24 | _axisColor(1.0f, 1.0f, 1.0f, 1.0f), |
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| 25 | _majorColor(1.0f, 1.0f, 1.0f, 1.0f), |
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[955] | 26 | _minorColor(0.5f, 0.5f, 0.5f, 1.0f), |
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[2953] | 27 | _font(NULL), |
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[2844] | 28 | _visible(false) |
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[776] | 29 | { |
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| 30 | } |
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| 31 | |
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[2953] | 32 | Grid::~Grid() |
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| 33 | { |
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| 34 | } |
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| 35 | |
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[776] | 36 | void Grid::render() |
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| 37 | { |
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[2932] | 38 | glPushAttrib(GL_ENABLE_BIT); |
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| 39 | |
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[862] | 40 | glEnable(GL_DEPTH_TEST); |
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[953] | 41 | glDisable(GL_TEXTURE_2D); |
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| 42 | glEnable(GL_BLEND); |
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[932] | 43 | #ifdef notdef |
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| 44 | glEnable(GL_LINE_SMOOTH); |
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| 45 | #endif |
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[2932] | 46 | |
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[3362] | 47 | glMatrixMode(GL_MODELVIEW); |
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[2932] | 48 | glPushMatrix(); |
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[776] | 49 | |
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[3362] | 50 | double xDataRange = xAxis.dataMax() - xAxis.dataMin(); |
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| 51 | double yDataRange = yAxis.dataMax() - yAxis.dataMin(); |
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| 52 | double zDataRange = zAxis.dataMax() - zAxis.dataMin(); |
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| 53 | |
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| 54 | double paspectX = 1.0f; |
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| 55 | double paspectY = yDataRange / xDataRange; |
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| 56 | double paspectZ = zDataRange / xDataRange; |
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| 57 | |
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| 58 | double xscale = xAxis.range() / xDataRange; |
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| 59 | double yscale = yAxis.range() / xDataRange; |
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| 60 | double zscale = zAxis.range() / xDataRange; |
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| 61 | |
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| 62 | double xoffset = (xAxis.min() - xAxis.dataMin()) * xAxis.scale(); |
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| 63 | double yoffset = (yAxis.min() - yAxis.dataMin()) * yAxis.scale(); |
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| 64 | double zoffset = (zAxis.min() - zAxis.dataMin()) * zAxis.scale(); |
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| 65 | |
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[3452] | 66 | TRACE("Axis ranges: %g %g %g", xAxis.range(), yAxis.range(), zAxis.range()); |
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| 67 | TRACE("Axis scales: %g %g %g", xAxis.scale(), yAxis.scale(), zAxis.scale()); |
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| 68 | TRACE("Axis min/max: %g,%g %g,%g %g,%g", |
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[3362] | 69 | xAxis.min(), xAxis.max(), |
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| 70 | yAxis.min(), yAxis.max(), |
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| 71 | zAxis.min(), zAxis.max()); |
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[3452] | 72 | TRACE("Axis vmin/vmax: %g,%g %g,%g %g,%g", |
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[3362] | 73 | xAxis.dataMin(), xAxis.dataMax(), |
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| 74 | yAxis.dataMin(), yAxis.dataMax(), |
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| 75 | zAxis.dataMin(), zAxis.dataMax()); |
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[3452] | 76 | TRACE("paspect: %g %g %g", paspectX, paspectY, paspectZ); |
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| 77 | TRACE("scale: %g %g %g", xscale, yscale, zscale); |
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[3362] | 78 | |
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| 79 | glTranslatef(-0.5f * paspectX, -0.5f * paspectY, -0.5f * paspectZ); |
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| 80 | glScalef(xscale, yscale, zscale); |
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| 81 | glTranslatef(xoffset, yoffset, zoffset); |
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| 82 | |
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[862] | 83 | glLineWidth(2.0f); |
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[932] | 84 | glColor4f(_axisColor.red, _axisColor.green, _axisColor.blue, |
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[2871] | 85 | _axisColor.alpha); |
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[776] | 86 | |
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[862] | 87 | glBegin(GL_LINES); |
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| 88 | { |
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[2871] | 89 | glVertex3f(0.0f, 0.0f, 0.0f); |
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| 90 | glVertex3f(1.0f + GRID_TICK, 0.0f, 0.0f); |
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| 91 | glVertex3f(0.0f, 0.0f, 0.0f); |
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| 92 | glVertex3f(0.0f, 1.0f + GRID_TICK, 0.0f); |
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| 93 | glVertex3f(0.0f, 0.0f, 0.0f); |
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| 94 | glVertex3f(0.0f, 0.0f, 1.0f + GRID_TICK); |
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[862] | 95 | } |
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| 96 | glEnd(); |
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[776] | 97 | |
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[862] | 98 | glLineWidth(1.0f); |
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[932] | 99 | glColor4f(_majorColor.red, _majorColor.green, _majorColor.blue, |
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[2871] | 100 | _majorColor.alpha); |
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[932] | 101 | |
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[862] | 102 | glBegin(GL_LINES); |
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[932] | 103 | { |
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[2871] | 104 | bool result; |
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| 105 | TickIter iter; |
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[776] | 106 | |
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[2923] | 107 | for (result = xAxis.firstMajor(iter); result; result = iter.next()) { |
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[2871] | 108 | float x; |
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[2923] | 109 | x = xAxis.map(iter.getValue()); |
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[2871] | 110 | glVertex3f(x, 0.0f, 0.0f); |
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| 111 | glVertex3f(x, 1.0f, 0.0f); |
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| 112 | glVertex3f(x, 0.0f, 0.0f); |
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| 113 | glVertex3f(x, 0.0f, 1.0f + GRID_TICK); |
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| 114 | } |
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[2923] | 115 | for (result = yAxis.firstMajor(iter); result; result = iter.next()) { |
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[2871] | 116 | float y; |
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[2923] | 117 | y = yAxis.map(iter.getValue()); |
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[2871] | 118 | glVertex3f(0.0f, y, 0.0f); |
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| 119 | glVertex3f(1.0f + GRID_TICK, y, 0.0f); |
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| 120 | glVertex3f(0.0f, y, 0.0f); |
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| 121 | glVertex3f(0.0f, y, 1.0f); |
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| 122 | } |
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[2923] | 123 | for (result = zAxis.firstMajor(iter); result; result = iter.next()) { |
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[2871] | 124 | float z; |
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[2923] | 125 | z = zAxis.map(iter.getValue()); |
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[2871] | 126 | glVertex3f(0.0f, 0.0f, z); |
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| 127 | glVertex3f(0.0f, 1.0f, z); |
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| 128 | glVertex3f(0.0f, 0.0f, z); |
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| 129 | glVertex3f(1.0f + GRID_TICK, 0.0f, z); |
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| 130 | } |
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[862] | 131 | } |
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[932] | 132 | glEnd(); |
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| 133 | |
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| 134 | // Set minor line color |
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| 135 | glColor4f(_minorColor.red, _minorColor.green, _minorColor.blue, |
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[2871] | 136 | _minorColor.alpha); |
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[932] | 137 | |
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| 138 | glBegin(GL_LINES); |
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| 139 | { |
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[2871] | 140 | bool result; |
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| 141 | TickIter iter; |
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[932] | 142 | |
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[2923] | 143 | for (result = xAxis.firstMinor(iter); result; result = iter.next()) { |
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[2871] | 144 | float x; |
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[2923] | 145 | x = xAxis.map(iter.getValue()); |
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[2871] | 146 | glVertex3f(x, 0.0f, 0.0f); |
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| 147 | glVertex3f(x, 1.0f, 0.0f); |
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| 148 | glVertex3f(x, 0.0f, 0.0f); |
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| 149 | glVertex3f(x, 0.0f, 1.0f); |
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| 150 | } |
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[2923] | 151 | for (result = yAxis.firstMinor(iter); result; result = iter.next()) { |
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[2871] | 152 | float y; |
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[2923] | 153 | y = yAxis.map(iter.getValue()); |
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[2871] | 154 | glVertex3f(0.0f, y, 0.0f); |
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| 155 | glVertex3f(1.0f, y, 0.0f); |
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| 156 | glVertex3f(0.0f, y, 0.0f); |
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| 157 | glVertex3f(0.0f, y, 1.0f); |
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| 158 | } |
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[2923] | 159 | for (result = zAxis.firstMinor(iter); result; result = iter.next()) { |
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[2871] | 160 | float z; |
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[2923] | 161 | z = zAxis.map(iter.getValue()); |
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[2871] | 162 | glVertex3f(0.0f, 0.0f, z); |
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| 163 | glVertex3f(0.0f, 1.0f, z); |
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| 164 | glVertex3f(0.0f, 0.0f, z); |
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| 165 | glVertex3f(1.0f, 0.0f, z); |
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| 166 | } |
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[862] | 167 | } |
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| 168 | glEnd(); |
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[776] | 169 | |
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[932] | 170 | if (_font != NULL) { |
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[2871] | 171 | double mv[16], prjm[16]; |
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| 172 | int viewport[4]; |
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| 173 | double wx, wy, wz; |
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| 174 | bool result; |
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| 175 | TickIter iter; |
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[932] | 176 | |
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[2871] | 177 | glGetDoublev(GL_MODELVIEW_MATRIX, mv); |
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| 178 | glGetDoublev(GL_PROJECTION_MATRIX, prjm); |
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| 179 | glGetIntegerv(GL_VIEWPORT, viewport); |
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| 180 | |
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| 181 | _font->begin(); |
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| 182 | if (gluProject(1.2, 0.0, 0.0, mv, prjm, viewport, &wx, &wy, &wz)) { |
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| 183 | glLoadIdentity(); |
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| 184 | glTranslatef((int) wx, viewport[3] - (int) wy, 0); |
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| 185 | const char *name = xAxis.name(); |
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| 186 | if (name == NULL) { |
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| 187 | name = "???"; |
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| 188 | } |
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| 189 | _font->draw(name); |
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| 190 | } |
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| 191 | |
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| 192 | if (gluProject(0.0, 1.2, 0.0, mv, prjm, viewport, &wx, &wy, &wz)) { |
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| 193 | glLoadIdentity(); |
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| 194 | glTranslatef((int) wx, viewport[3] - (int)wy, 0); |
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| 195 | const char *name = yAxis.name(); |
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| 196 | if (name == NULL) { |
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| 197 | name = "???"; |
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| 198 | } |
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| 199 | _font->draw(name); |
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| 200 | } |
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| 201 | |
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| 202 | if (gluProject(0.0, 0.0, 1.2, mv, prjm, viewport, &wx, &wy, &wz)) { |
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| 203 | glLoadIdentity(); |
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| 204 | glTranslatef((int) wx, (int) viewport[3] - (int)wy, 0.0f); |
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| 205 | const char *name = zAxis.name(); |
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| 206 | if (name == NULL) { |
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| 207 | name = "???"; |
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| 208 | } |
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| 209 | _font->draw(name); |
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| 210 | } |
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| 211 | |
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| 212 | glColor4f(1.0f, 1.0f, 0.0f, 1.0f); |
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[932] | 213 | |
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[2923] | 214 | for (result = xAxis.firstMajor(iter); result; result = iter.next()) { |
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[2871] | 215 | float x; |
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[2923] | 216 | x = xAxis.map(iter.getValue()); |
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[2871] | 217 | if (gluProject(x, 0.0f, 1.06f, mv, prjm, viewport, &wx, &wy, &wz)) { |
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| 218 | char buff[20]; |
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| 219 | glLoadIdentity(); |
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| 220 | glTranslatef((int) wx, (int) viewport[3] - (int)wy, 0.0f); |
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[2923] | 221 | sprintf(buff, "%.*g", NUMDIGITS, iter.getValue()); |
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[2871] | 222 | _font->draw(buff); |
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| 223 | } |
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| 224 | } |
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[2923] | 225 | for (result = yAxis.firstMajor(iter); result; result = iter.next()) { |
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[2871] | 226 | float y; |
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[2923] | 227 | y = yAxis.map(iter.getValue()); |
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[2871] | 228 | if (gluProject(1.06f, y, 0.0f, mv, prjm, viewport, &wx, &wy, &wz)) { |
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| 229 | char buff[20]; |
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| 230 | glLoadIdentity(); |
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| 231 | glTranslatef((int) wx, (int) viewport[3] - (int)wy, 0.0f); |
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[2923] | 232 | sprintf(buff, "%.*g", NUMDIGITS, iter.getValue()); |
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[2871] | 233 | _font->draw(buff); |
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| 234 | } |
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| 235 | } |
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[2923] | 236 | for (result = zAxis.firstMajor(iter); result; result = iter.next()) { |
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[2871] | 237 | float z; |
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[2923] | 238 | z = zAxis.map(iter.getValue()); |
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[2871] | 239 | if (gluProject(1.06f, 0.0f, z, mv, prjm, viewport, &wx, &wy, &wz)) { |
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| 240 | char buff[20]; |
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| 241 | glLoadIdentity(); |
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| 242 | glTranslatef((int) wx, (int) viewport[3] - (int)wy, 0.0f); |
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[2923] | 243 | sprintf(buff, "%.*g", NUMDIGITS, iter.getValue()); |
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[2871] | 244 | _font->draw(buff); |
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| 245 | } |
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| 246 | } |
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| 247 | _font->end(); |
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[862] | 248 | }; |
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[2932] | 249 | |
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[862] | 250 | glPopMatrix(); |
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[2932] | 251 | glPopAttrib(); |
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[776] | 252 | } |
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[2871] | 253 | |
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[3463] | 254 | void Grid::setFont(Fonts *font) |
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[776] | 255 | { |
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[862] | 256 | _font = font; |
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[776] | 257 | } |
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[932] | 258 | |
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