1 | #if defined(_MSC_VER) /* MSVC Compiler */
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2 | #pragma warning ( disable : 4786 )
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3 | #endif
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4 |
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5 | #ifndef __DATATYPES_H__
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6 | #define __DATATYPES_H__
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7 |
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8 | #ifdef _DEBUG
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9 | #include <fstream>
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10 | #endif
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11 |
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12 | #include <string>
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13 |
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14 | #include "qwt3d_global.h"
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15 |
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16 | #if defined(Q_WS_WIN)
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17 | #include <windows.h>
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18 | #endif
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19 |
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20 | #ifndef WHEEL_DELTA
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21 | #define WHEEL_DELTA 120
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22 | #endif
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23 |
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24 | #include "qwt3d_portability.h"
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25 | #include "qwt3d_helper.h"
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26 | #include "qwt3d_openglhelper.h"
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27 |
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28 | //! Common namespace for all QwtPlot3D classes
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29 | namespace Qwt3D
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30 | {
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31 |
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32 | const double PI = 3.14159265358979323846264338328;
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33 |
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34 | //! Plotting style
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35 | enum PLOTSTYLE
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36 | {
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37 | NOPLOT , //!< No visible data
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38 | WIREFRAME , //!< Wireframe style
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39 | HIDDENLINE , //!< Hidden Line style
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40 | FILLED , //!< Color filled polygons w/o edges
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41 | FILLEDMESH , //!< Color filled polygons w/ separately colored edges
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42 | POINTS , //!< User defined style (used by Enrichments)
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43 | USER //!< User defined style (used by Enrichments)
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44 | };
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45 |
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46 | //! Shading style
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47 | enum SHADINGSTYLE
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48 | {
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49 | FLAT, //!< Flat shading (OpenGL)
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50 | GOURAUD //!< Gouraud Shading (OpenGL)
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51 | };
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52 |
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53 | //! Style of Coordinate system
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54 | enum COORDSTYLE
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55 | {
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56 | NOCOORD, //!< Coordinate system is not visible
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57 | BOX, //!< Boxed
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58 | FRAME //!< Frame - 3 visible axes
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59 | };
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60 |
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61 | //! Different types of axis scales
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62 | enum SCALETYPE
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63 | {
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64 | LINEARSCALE,//!< Linear scaling
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65 | LOG10SCALE, //!< Logarithmic scaling (base 10)
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66 | USERSCALE //!< User-defined (for extensions)
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67 | };
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68 |
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69 | //! Plotting style for floor data (projections)
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70 | enum FLOORSTYLE
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71 | {
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72 | NOFLOOR, //!< Empty floor
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73 | FLOORISO, //!< Isoline projections visible
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74 | FLOORDATA //!< Projected polygons visible
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75 | };
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76 |
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77 | //! Mesh type
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78 | enum DATATYPE
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79 | {
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80 | GRID, //!< Rectangular grid
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81 | POLYGON //!< Convex polygon
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82 | };
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83 |
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84 | //! The 12 axes
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85 | /**
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86 | \image html axes.png
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87 | */
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88 | enum AXIS
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89 | {
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90 | X1 = 0, //!< 1st x-axis
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91 | X2 = 3, //!< 2nd x-axis
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92 | X3 = 4, //!< 3th x-axis
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93 | X4 = 5, //!< 4th x-axis
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94 | Y1 = 1, //!< 1st y-axis
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95 | Y2 = 8, //!< 2nd y-axis
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96 | Y3 = 7, //!< 3th y-axis
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97 | Y4 = 6, //!< 4th y-axis
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98 | Z1 = 2, //!< 1st z-axis
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99 | Z2 = 9, //!< 2nd z-axis
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100 | Z3 = 11, //!< 3th z-axis
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101 | Z4 = 10 //!< 4th z-axis
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102 | };
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103 |
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104 | //! The 6 sides
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105 | enum SIDE
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106 | {
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107 | NOSIDEGRID = 0,
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108 | LEFT = 1 << 0,
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109 | RIGHT = 1 << 1,
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110 | CEIL = 1 << 2,
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111 | FLOOR = 1 << 3,
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112 | FRONT = 1 << 4,
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113 | BACK = 1 << 5
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114 | };
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115 |
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116 | //! Possible anchor points for drawing operations
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117 | enum ANCHOR
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118 | {
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119 | BottomLeft,
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120 | BottomRight,
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121 | BottomCenter,
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122 | TopLeft,
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123 | TopRight,
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124 | TopCenter,
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125 | CenterLeft,
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126 | CenterRight,
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127 | Center
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128 | };
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129 |
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130 |
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131 | //! Tuple <tt>[x,y]</tt>
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132 | struct QWT3D_EXPORT Tuple
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133 | {
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134 | Tuple() : x(0), y(0) {} //!< Calls Tuple(0,0)
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135 | Tuple(double X, double Y) : x(X), y(Y) {} //!< Initialize Tuple with x and y
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136 | //! Tuple coordinates
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137 | double x,y;
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138 | };
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139 |
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140 | //! Triple <tt>[x,y,z]</tt>
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141 | /**
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142 | Consider Triples also as vectors in R^3
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143 | */
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144 | struct QWT3D_EXPORT Triple
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145 | {
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146 | //! Initialize Triple with x,y and z
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147 | explicit Triple(double xv = 0,double yv = 0,double zv = 0)
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148 | : x(xv), y(yv), z(zv)
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149 | {
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150 | }
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151 |
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152 | #ifndef QWT3D_NOT_FOR_DOXYGEN
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153 | #ifdef Q_OS_IRIX
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154 | Triple(const Triple& val)
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155 | {
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156 | if (&val == this)
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157 | return;
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158 | x = val.x;
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159 | y = val.y;
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160 | z = val.z;
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161 | }
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162 | const Triple& operator=(const Triple& val)
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163 | {
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164 | if (&val == this)
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165 | return *this;
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166 | x = val.x;
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167 | y = val.y;
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168 | z = val.z;
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169 | return *this;
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170 | }
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171 | #endif
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172 | #endif // QWT3D_NOT_FOR_DOXYGEN
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173 |
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174 | //! Triple coordinates
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175 | double x,y,z;
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176 |
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177 | Triple& operator+=(Triple t)
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178 | {
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179 | x += t.x;
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180 | y += t.y;
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181 | z += t.z;
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182 |
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183 | return *this;
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184 | }
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185 |
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186 | Triple& operator-=(Triple t)
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187 | {
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188 | x -= t.x;
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189 | y -= t.y;
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190 | z -= t.z;
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191 |
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192 | return *this;
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193 | }
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194 | Triple& operator*=(double d)
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195 | {
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196 | x *= d;
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197 | y *= d;
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198 | z *= d;
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199 |
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200 | return *this;
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201 | }
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202 | Triple& operator/=(double d)
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203 | {
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204 | x /= d;
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205 | y /= d;
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206 | z /= d;
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207 |
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208 | return *this;
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209 | }
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210 | Triple& operator*=(Triple t) // scale
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211 | {
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212 | x *= t.x;
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213 | y *= t.y;
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214 | z *= t.z;
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215 |
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216 | return *this;
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217 | }
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218 |
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219 | bool operator!=(Triple t) const
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220 | {
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221 | return !isPracticallyZero(x,t.x) || !isPracticallyZero(y,t.y) || !isPracticallyZero(z,t.z);
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222 | }
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223 |
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224 | bool operator==(Triple t) const
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225 | {
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226 | return !operator!=(t);
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227 | }
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228 |
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229 | double length() const
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230 | {
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231 | double l2 = x*x + y*y + z*z;
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232 | return (isPracticallyZero(l2)) ? 0 :sqrt(l2);
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233 | }
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234 |
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235 | void normalize()
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236 | {
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237 | double l = length();
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238 | if (l)
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239 | *this /= l;
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240 | }
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241 | };
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242 |
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243 | inline const Triple operator+(const Triple& t, const Triple& t2)
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244 | {
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245 | return Triple(t) += t2;
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246 | }
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247 | inline const Triple operator-(const Triple& t, const Triple& t2)
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248 | {
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249 | return Triple(t) -= t2;
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250 | }
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251 | inline const Triple operator*(double d, const Triple& t)
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252 | {
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253 | return Triple(t) *= d;
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254 | }
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255 | inline const Triple operator*(const Triple& t, double d)
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256 | {
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257 | return Triple(t) *= d;
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258 | }
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259 | inline const Triple operator/(double d, const Triple& t)
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260 | {
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261 | return Triple(t) /= d;
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262 | }
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263 | inline const Triple operator/(const Triple& t, double d)
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264 | {
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265 | return Triple(t) /= d;
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266 | }
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267 | inline const Triple operator*(const Triple& t, const Triple& t2)
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268 | {
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269 | return Triple(t) *= t2;
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270 | }
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271 |
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272 | //! Parallelepiped spanned by 2 Triples
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273 | /**
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274 | Please use \em normalized Parallelepipeds:\n\n
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275 | minVertex.x <= maxVertex.x\n
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276 | minVertex.y <= maxVertex.y\n
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277 | minVertex.z <= maxVertex.z\n
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278 | */
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279 | struct QWT3D_EXPORT ParallelEpiped
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280 | {
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281 | //! Construct non-initialized Parallelepiped
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282 | ParallelEpiped()
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283 | {
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284 | }
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285 |
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286 | //! Construct initialized Parallelepiped
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287 | /**
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288 | minv -> minVertex\n
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289 | maxv -> maxVertex\n
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290 | */
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291 | ParallelEpiped(Triple minv, Triple maxv)
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292 | : minVertex(minv), maxVertex(maxv)
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293 | {
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294 | }
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295 |
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296 | Triple minVertex;
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297 | Triple maxVertex;
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298 | };
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299 |
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300 | //! Free vector
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301 | /**
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302 | FreeVectors represent objects like normal vectors and other vector fields inside R^3
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303 | */
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304 | struct QWT3D_EXPORT FreeVector
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305 | {
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306 | FreeVector()
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307 | {
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308 | }
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309 |
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310 | //! Construct initialized vector
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311 | /**
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312 | b -> base\n
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313 | e -> top\n
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314 | */
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315 | FreeVector(Triple b, Triple t)
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316 | : base(b), top(t)
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317 | {
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318 | }
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319 |
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320 | Triple base;
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321 | Triple top;
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322 | };
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323 |
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324 | //! A free vector field in R^3
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325 | typedef std::vector<FreeVector> FreeVectorField;
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326 |
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327 | //! A point field in R^3
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328 | typedef std::vector<Triple> TripleField;
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329 | //! Holds indices in a TripleField interpreted as counterclockwise node numbering for a convex polygon
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330 | typedef std::vector<unsigned> Cell;
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331 | //! Vector of convex polygons. You need a TripleField as base for the node data
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332 | typedef std::vector<Cell> CellField;
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333 | //! Returns the sum over the sizes of the single cells
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334 | unsigned tesselationSize(Qwt3D::CellField const& t);
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335 |
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336 | //! Red-Green-Blue-Alpha value
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337 | struct QWT3D_EXPORT RGBA
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338 | {
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339 | RGBA()
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340 | : r(0), g(0), b(0), a(1)
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341 | {}
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342 | RGBA(double rr, double gg, double bb, double aa = 1)
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343 | : r(rr), g(gg), b(bb), a(aa)
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344 | {}
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345 | double r,g,b,a;
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346 | };
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347 |
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348 | //! A Color field
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349 | typedef std::vector<RGBA> ColorVector;
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350 |
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351 | #ifndef QWT3D_NOT_FOR_DOXYGEN
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352 |
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353 | QWT3D_EXPORT QColor GL2Qt(GLdouble r, GLdouble g, GLdouble b); //!< RGB -> QColor
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354 | QWT3D_EXPORT Qwt3D::RGBA Qt2GL(QColor col); //!< QColor -> RGBA
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355 |
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356 | typedef double *Vertex;
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357 | typedef std::vector<Vertex> DataRow;
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358 | typedef std::vector<DataRow> DataMatrix;
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359 |
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360 |
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361 | class Data
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362 | {
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363 | public:
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364 | Qwt3D::DATATYPE datatype;
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365 | Data() {datatype= Qwt3D::POLYGON;}
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366 | virtual ~Data() {}
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367 | virtual void clear() = 0; //!< destroy content
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368 | virtual bool empty() const = 0; //!< no data
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369 | void setHull(Qwt3D::ParallelEpiped const& h) {hull_p = h;}
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370 | Qwt3D::ParallelEpiped const& hull() const {return hull_p;}
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371 |
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372 | protected:
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373 | Qwt3D::ParallelEpiped hull_p;
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374 | };
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375 |
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376 |
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377 | //! Implements a matrix of z-Values with limit access functions
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378 | class GridData : public Data
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379 | {
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380 | public:
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381 | GridData();
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382 | GridData(unsigned int columns, unsigned int rows);//!< see setSize()
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383 | ~GridData() { clear();}
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384 |
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385 | int columns() const;
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386 | int rows() const;
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387 |
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388 | void clear(); //!< destroy content
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389 | bool empty() const { return vertices.empty();}
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390 | void setSize(unsigned int columns, unsigned int rows); //!< destroys content and set new size, elements are uninitialized
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391 |
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392 | DataMatrix vertices; //!< mesh vertices
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393 | DataMatrix normals; //!< mesh normals
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394 | void setPeriodic(bool u, bool v) {uperiodic_ = u; vperiodic_ = v;}
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395 | bool uperiodic() const {return uperiodic_;}
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396 | bool vperiodic() const {return vperiodic_;}
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397 |
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398 | private:
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399 | bool uperiodic_, vperiodic_;
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400 | };
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401 |
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402 |
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403 | //! Implements a graph-like cell structure with limit access functions
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404 | class CellData : public Data
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405 | {
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406 | public:
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407 | CellData() {datatype=Qwt3D::POLYGON;}
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408 | ~CellData() { clear();}
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409 |
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410 | void clear(); //!< destroy content
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411 | bool empty() const { return cells.empty();}
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412 |
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413 | Triple const& operator()(unsigned cellnumber, unsigned vertexnumber);
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414 |
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415 | CellField cells; //!< polygon/cell mesh
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416 | TripleField nodes;
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417 | TripleField normals; //!< mesh normals
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418 | };
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419 |
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420 | inline Triple normalizedcross(Triple const& u, Triple const& v)
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421 | {
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422 | Triple n;
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423 |
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424 | /* compute the cross product (u x v for right-handed [ccw]) */
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425 | n.x = u.y * v.z - u.z * v.y;
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426 | n.y = u.z * v.x - u.x * v.z;
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427 | n.z = u.x * v.y - u.y * v.x;
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428 |
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429 | /* normalize */
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430 | double l = n.length();
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431 | if (l)
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432 | {
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433 | n /= l;
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434 | }
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435 | else
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436 | {
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437 | n = Triple(0,0,0);
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438 | }
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439 |
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440 | return n;
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441 | }
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442 |
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443 | inline double dotProduct(Triple const& u, Triple const& v)
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444 | {
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445 | return u.x*v.x + u.y*v.y + u.z*v.z;
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446 | }
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447 |
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448 | void convexhull2d( std::vector<unsigned>& idx, const std::vector<Qwt3D::Tuple>& src );
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449 |
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450 |
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451 | #endif // QWT3D_NOT_FOR_DOXYGEN
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452 |
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453 | } // ns
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454 |
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455 | #endif
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