1 | # ---------------------------------------------------------------------- |
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2 | # COMPONENT: contourresult - contour plot in a ResultSet |
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3 | # |
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4 | # This widget is a contour plot for 2D meshes with a scalar value. |
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5 | # It is normally used in the ResultViewer to show results from the |
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6 | # run of a Rappture tool. Use the "add" and "delete" methods to |
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7 | # control the dataobjs showing on the plot. |
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8 | # ====================================================================== |
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9 | # AUTHOR: Michael McLennan, Purdue University |
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10 | # Copyright (c) 2004-2005 |
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11 | # Purdue Research Foundation, West Lafayette, IN |
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12 | # ====================================================================== |
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13 | package require Itk |
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14 | package require vtk |
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15 | package require vtkinteraction |
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16 | package require BLT |
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17 | |
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18 | blt::bitmap define ContourResult-reset { |
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19 | #define reset_width 12 |
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20 | #define reset_height 12 |
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21 | static unsigned char reset_bits[] = { |
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22 | 0x00, 0x00, 0x00, 0x00, 0xfc, 0x03, 0x04, 0x02, 0x04, 0x02, 0x04, 0x02, |
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23 | 0x04, 0x02, 0x04, 0x02, 0x04, 0x02, 0xfc, 0x03, 0x00, 0x00, 0x00, 0x00}; |
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24 | } |
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25 | |
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26 | blt::bitmap define ContourResult-zoomin { |
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27 | #define zoomin_width 12 |
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28 | #define zoomin_height 12 |
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29 | static unsigned char zoomin_bits[] = { |
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30 | 0x7c, 0x00, 0x82, 0x00, 0x11, 0x01, 0x11, 0x01, 0x7d, 0x01, 0x11, 0x01, |
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31 | 0x11, 0x01, 0x82, 0x03, 0xfc, 0x07, 0x80, 0x0f, 0x00, 0x0f, 0x00, 0x06}; |
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32 | } |
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33 | |
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34 | blt::bitmap define ContourResult-zoomout { |
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35 | #define zoomout_width 12 |
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36 | #define zoomout_height 12 |
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37 | static unsigned char zoomout_bits[] = { |
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38 | 0x7c, 0x00, 0x82, 0x00, 0x01, 0x01, 0x01, 0x01, 0x7d, 0x01, 0x01, 0x01, |
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39 | 0x01, 0x01, 0x82, 0x03, 0xfc, 0x07, 0x80, 0x0f, 0x00, 0x0f, 0x00, 0x06}; |
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40 | } |
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41 | |
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42 | option add *ContourResult.width 4i widgetDefault |
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43 | option add *ContourResult.height 4i widgetDefault |
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44 | option add *ContourResult.foreground black widgetDefault |
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45 | option add *ContourResult.controlBackground gray widgetDefault |
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46 | option add *ContourResult.font \ |
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47 | -*-helvetica-medium-r-normal-*-*-120-* widgetDefault |
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48 | |
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49 | itcl::class Rappture::ContourResult { |
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50 | inherit itk::Widget |
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51 | |
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52 | itk_option define -foreground foreground Foreground "" |
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53 | itk_option define -background background Background "" |
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54 | |
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55 | constructor {args} { # defined below } |
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56 | destructor { # defined below } |
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57 | |
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58 | public method add {dataobj {settings ""}} |
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59 | public method get {} |
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60 | public method delete {args} |
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61 | public method scale {args} |
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62 | |
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63 | protected method _rebuild {} |
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64 | protected method _zoom {option} |
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65 | protected method _move {option x y} |
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66 | protected method _fixLimits {} |
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67 | protected method _color2rgb {color} |
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68 | |
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69 | private variable _dlist "" ;# list of data objects |
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70 | private variable _obj2color ;# maps dataobj => plotting color |
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71 | private variable _obj2width ;# maps dataobj => line width |
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72 | private variable _obj2raise ;# maps dataobj => raise flag 0/1 |
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73 | private variable _obj2vtk ;# maps dataobj => vtk objects |
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74 | private variable _actors ;# list of actors for each renderer |
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75 | private variable _click ;# info used for _move operations |
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76 | private variable _xmin "" ;# autoscale min for x-axis |
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77 | private variable _xmax "" ;# autoscale max for x-axis |
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78 | private variable _ymin "" ;# autoscale min for y-axis |
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79 | private variable _ymax "" ;# autoscale max for y-axis |
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80 | private variable _zmin "" ;# autoscale min for z-axis |
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81 | private variable _zmax "" ;# autoscale max for z-axis |
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82 | |
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83 | private common _counter 0 ;# used for auto-generated names |
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84 | } |
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85 | |
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86 | itk::usual ContourResult { |
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87 | keep -background -foreground -cursor -font |
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88 | } |
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89 | |
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90 | # ---------------------------------------------------------------------- |
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91 | # CONSTRUCTOR |
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92 | # ---------------------------------------------------------------------- |
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93 | itcl::body Rappture::ContourResult::constructor {args} { |
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94 | option add hull.width hull.height |
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95 | pack propagate $itk_component(hull) no |
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96 | |
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97 | itk_component add controls { |
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98 | frame $itk_interior.cntls |
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99 | } { |
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100 | usual |
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101 | rename -background -controlbackground controlBackground Background |
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102 | } |
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103 | pack $itk_component(controls) -side right -fill y |
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104 | |
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105 | itk_component add reset { |
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106 | button $itk_component(controls).reset \ |
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107 | -borderwidth 1 -padx 1 -pady 1 \ |
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108 | -bitmap ContourResult-reset \ |
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109 | -command [itcl::code $this _zoom reset] |
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110 | } { |
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111 | usual |
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112 | ignore -borderwidth |
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113 | rename -highlightbackground -controlbackground controlBackground Background |
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114 | } |
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115 | pack $itk_component(reset) -padx 4 -pady 4 |
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116 | Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level" |
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117 | |
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118 | itk_component add zoomin { |
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119 | button $itk_component(controls).zin \ |
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120 | -borderwidth 1 -padx 1 -pady 1 \ |
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121 | -bitmap ContourResult-zoomin \ |
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122 | -command [itcl::code $this _zoom in] |
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123 | } { |
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124 | usual |
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125 | ignore -borderwidth |
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126 | rename -highlightbackground -controlbackground controlBackground Background |
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127 | } |
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128 | pack $itk_component(zoomin) -padx 4 -pady 4 |
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129 | Rappture::Tooltip::for $itk_component(zoomin) "Zoom in" |
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130 | |
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131 | itk_component add zoomout { |
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132 | button $itk_component(controls).zout \ |
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133 | -borderwidth 1 -padx 1 -pady 1 \ |
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134 | -bitmap ContourResult-zoomout \ |
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135 | -command [itcl::code $this _zoom out] |
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136 | } { |
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137 | usual |
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138 | ignore -borderwidth |
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139 | rename -highlightbackground -controlbackground controlBackground Background |
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140 | } |
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141 | pack $itk_component(zoomout) -padx 4 -pady 4 |
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142 | Rappture::Tooltip::for $itk_component(zoomout) "Zoom out" |
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143 | |
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144 | itk_component add area { |
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145 | frame $itk_interior.area |
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146 | } |
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147 | pack $itk_component(area) -expand yes -fill both |
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148 | |
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149 | vtkRenderer $this-ren |
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150 | vtkRenderWindow $this-renWin |
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151 | $this-renWin AddRenderer $this-ren |
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152 | vtkRenderWindowInteractor $this-iren |
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153 | $this-iren SetRenderWindow $this-renWin |
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154 | |
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155 | itk_component add plot { |
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156 | vtkTkRenderWidget $itk_component(area).plot -rw $this-renWin \ |
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157 | -width 1 -height 1 |
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158 | } { |
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159 | } |
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160 | pack $itk_component(plot) -expand yes -fill both |
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161 | |
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162 | |
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163 | vtkRenderer $this-ren2 |
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164 | vtkRenderWindow $this-renWin2 |
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165 | $this-renWin2 AddRenderer $this-ren2 |
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166 | vtkRenderWindowInteractor $this-iren2 |
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167 | $this-iren2 SetRenderWindow $this-renWin2 |
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168 | |
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169 | itk_component add legend { |
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170 | vtkTkRenderWidget $itk_component(area).legend -rw $this-renWin2 \ |
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171 | -width 1 -height 40 |
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172 | } { |
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173 | } |
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174 | pack $itk_component(legend) -side bottom -fill x |
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175 | |
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176 | eval itk_initialize $args |
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177 | |
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178 | blt::busy hold $itk_component(area) -cursor left_ptr |
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179 | bind $itk_component(area)_Busy <ButtonPress> \ |
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180 | [itcl::code $this _move click %x %y] |
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181 | bind $itk_component(area)_Busy <B1-Motion> \ |
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182 | [itcl::code $this _move drag %x %y] |
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183 | bind $itk_component(area)_Busy <ButtonRelease> \ |
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184 | [itcl::code $this _move release %x %y] |
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185 | } |
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186 | |
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187 | # ---------------------------------------------------------------------- |
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188 | # DESTRUCTOR |
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189 | # ---------------------------------------------------------------------- |
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190 | itcl::body Rappture::ContourResult::destructor {} { |
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191 | rename $this-renWin "" |
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192 | rename $this-ren "" |
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193 | rename $this-iren "" |
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194 | |
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195 | rename $this-renWin2 "" |
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196 | rename $this-ren2 "" |
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197 | rename $this-iren2 "" |
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198 | |
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199 | after cancel [itcl::code $this _rebuild] |
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200 | } |
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201 | |
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202 | # ---------------------------------------------------------------------- |
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203 | # USAGE: add <dataobj> ?<settings>? |
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204 | # |
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205 | # Clients use this to add a data object to the plot. The optional |
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206 | # <settings> are used to configure the plot. Allowed settings are |
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207 | # -color, -brightness, -width, -linestyle, and -raise. |
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208 | # ---------------------------------------------------------------------- |
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209 | itcl::body Rappture::ContourResult::add {dataobj {settings ""}} { |
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210 | array set params { |
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211 | -color black |
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212 | -width 1 |
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213 | -linestyle solid |
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214 | -brightness 0 |
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215 | -raise 0 |
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216 | } |
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217 | foreach {opt val} $settings { |
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218 | if {![info exists params($opt)]} { |
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219 | error "bad setting \"$opt\": should be [join [lsort [array names params]] {, }]" |
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220 | } |
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221 | set params($opt) $val |
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222 | } |
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223 | |
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224 | set pos [lsearch -exact $dataobj $_dlist] |
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225 | if {$pos < 0} { |
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226 | lappend _dlist $dataobj |
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227 | set _obj2color($dataobj) $params(-color) |
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228 | set _obj2width($dataobj) $params(-width) |
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229 | set _obj2raise($dataobj) $params(-raise) |
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230 | |
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231 | after cancel [itcl::code $this _rebuild] |
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232 | after idle [itcl::code $this _rebuild] |
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233 | } |
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234 | } |
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235 | |
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236 | # ---------------------------------------------------------------------- |
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237 | # USAGE: get |
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238 | # |
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239 | # Clients use this to query the list of objects being plotted, in |
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240 | # order from bottom to top of this result. |
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241 | # ---------------------------------------------------------------------- |
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242 | itcl::body Rappture::ContourResult::get {} { |
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243 | # put the dataobj list in order according to -raise options |
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244 | set dlist $_dlist |
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245 | foreach obj $dlist { |
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246 | if {[info exists _obj2raise($obj)] && $_obj2raise($obj)} { |
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247 | set i [lsearch -exact $dlist $obj] |
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248 | if {$i >= 0} { |
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249 | set dlist [lreplace $dlist $i $i] |
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250 | lappend dlist $obj |
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251 | } |
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252 | } |
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253 | } |
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254 | return $dlist |
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255 | } |
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256 | |
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257 | # ---------------------------------------------------------------------- |
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258 | # USAGE: delete ?<dataobj1> <dataobj2> ...? |
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259 | # |
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260 | # Clients use this to delete a dataobj from the plot. If no dataobjs |
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261 | # are specified, then all dataobjs are deleted. |
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262 | # ---------------------------------------------------------------------- |
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263 | itcl::body Rappture::ContourResult::delete {args} { |
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264 | if {[llength $args] == 0} { |
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265 | set args $_dlist |
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266 | } |
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267 | |
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268 | # delete all specified dataobjs |
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269 | set changed 0 |
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270 | foreach dataobj $args { |
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271 | set pos [lsearch -exact $_dlist $dataobj] |
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272 | if {$pos >= 0} { |
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273 | set _dlist [lreplace $_dlist $pos $pos] |
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274 | catch {unset _obj2color($dataobj)} |
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275 | catch {unset _obj2width($dataobj)} |
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276 | catch {unset _obj2raise($dataobj)} |
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277 | set changed 1 |
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278 | } |
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279 | } |
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280 | |
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281 | # if anything changed, then rebuild the plot |
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282 | if {$changed} { |
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283 | after cancel [itcl::code $this _rebuild] |
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284 | after idle [itcl::code $this _rebuild] |
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285 | } |
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286 | } |
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287 | |
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288 | # ---------------------------------------------------------------------- |
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289 | # USAGE: scale ?<data1> <data2> ...? |
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290 | # |
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291 | # Sets the default limits for the overall plot according to the |
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292 | # limits of the data for all of the given <data> objects. This |
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293 | # accounts for all objects--even those not showing on the screen. |
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294 | # Because of this, the limits are appropriate for all objects as |
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295 | # the user scans through data in the ResultSet viewer. |
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296 | # ---------------------------------------------------------------------- |
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297 | itcl::body Rappture::ContourResult::scale {args} { |
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298 | set _xmin "" |
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299 | set _xmax "" |
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300 | set _ymin "" |
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301 | set _ymax "" |
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302 | set _zmin "" |
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303 | set _zmax "" |
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304 | foreach obj $args { |
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305 | foreach axis {x y z} { |
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306 | foreach {min max} [$obj limits $axis] break |
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307 | if {"" != $min && "" != $max} { |
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308 | if {"" == [set _${axis}min]} { |
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309 | set _${axis}min $min |
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310 | set _${axis}max $max |
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311 | } else { |
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312 | if {$min < [set _${axis}min]} { |
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313 | set _${axis}min $min |
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314 | } |
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315 | if {$max > [set _${axis}max]} { |
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316 | set _${axis}max $max |
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317 | } |
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318 | } |
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319 | } |
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320 | } |
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321 | } |
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322 | _fixLimits |
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323 | } |
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324 | |
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325 | # ---------------------------------------------------------------------- |
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326 | # USAGE: _rebuild |
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327 | # |
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328 | # Called automatically whenever something changes that affects the |
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329 | # data in the widget. Clears any existing data and rebuilds the |
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330 | # widget to display new data. |
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331 | # ---------------------------------------------------------------------- |
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332 | itcl::body Rappture::ContourResult::_rebuild {} { |
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333 | # clear out any old constructs |
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334 | foreach ren [array names _actors] { |
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335 | foreach actor $_actors($ren) { |
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336 | $ren RemoveActor $actor |
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337 | } |
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338 | set _actors($ren) "" |
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339 | } |
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340 | foreach dataobj [array names _obj2vtk] { |
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341 | foreach cmd $_obj2vtk($dataobj) { |
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342 | rename $cmd "" |
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343 | } |
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344 | set _obj2vtk($dataobj) "" |
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345 | } |
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346 | |
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347 | # scan through all data objects and build the contours |
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348 | set _counter 0 |
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349 | foreach dataobj [get] { |
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350 | foreach comp [$dataobj components] { |
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351 | set pd $this-polydata$_counter |
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352 | vtkPolyData $pd |
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353 | $pd SetPoints [$dataobj mesh $comp] |
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354 | [$pd GetPointData] SetScalars [$dataobj values $comp] |
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355 | |
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356 | # use _zmin/_zmax if possible, otherwise get from data |
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357 | if {$_zmin == "" || $_zmax == ""} { |
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358 | foreach {z0 z1} [$pd GetScalarRange] break |
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359 | } else { |
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360 | set z0 $_zmin |
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361 | set z1 $_zmax |
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362 | } |
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363 | |
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364 | set tr $this-triangles$_counter |
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365 | vtkDelaunay2D $tr |
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366 | $tr SetInput $pd |
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367 | $tr SetTolerance 0.0000000000001 |
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368 | |
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369 | set lu $this-lookup$_counter |
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370 | vtkLookupTable $lu |
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371 | $lu SetTableRange $z0 $z1 |
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372 | $lu SetHueRange 0.66667 0.0 |
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373 | $lu Build |
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374 | |
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375 | lappend _obj2vtk($dataobj) $pd $tr $lu |
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376 | |
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377 | # |
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378 | # Add color contours. |
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379 | # |
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380 | if {$_counter == 0} { |
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381 | set mp $this-mapper$_counter |
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382 | vtkPolyDataMapper $mp |
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383 | $mp SetInput [$tr GetOutput] |
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384 | $mp SetScalarRange $z0 $z1 |
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385 | $mp SetLookupTable $lu |
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386 | |
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387 | set ac $this-actor$_counter |
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388 | vtkActor $ac |
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389 | $ac SetMapper $mp |
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390 | $ac SetPosition 0 0 0 |
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391 | [$ac GetProperty] SetColor 0 0 0 |
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392 | $this-ren AddActor $ac |
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393 | lappend _actors($this-ren) $ac |
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394 | |
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395 | lappend _obj2vtk($dataobj) $mp $ac |
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396 | } |
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397 | |
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398 | # |
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399 | # Add color lines |
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400 | # |
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401 | if {$_counter > 0} { |
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402 | set cf $this-clfilter$_counter |
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403 | vtkContourFilter $cf |
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404 | $cf SetInput [$tr GetOutput] |
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405 | $cf GenerateValues 20 $z0 $z1 |
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406 | |
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407 | set mp $this-clmapper$_counter |
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408 | vtkPolyDataMapper $mp |
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409 | $mp SetInput [$cf GetOutput] |
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410 | $mp SetScalarRange $z0 $z1 |
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411 | $mp SetLookupTable $lu |
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412 | |
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413 | set ac $this-clactor$_counter |
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414 | vtkActor $ac |
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415 | $ac SetMapper $mp |
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416 | [$ac GetProperty] SetColor 1 1 1 |
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417 | $ac SetPosition 0 0 0 |
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418 | $this-ren AddActor $ac |
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419 | lappend _actors($this-ren) $ac |
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420 | |
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421 | lappend _obj2vtk($dataobj) $cf $mp $ac |
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422 | } |
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423 | |
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424 | # |
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425 | # Add an outline around the data |
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426 | # |
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427 | set olf $this-olfilter$_counter |
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428 | vtkOutlineFilter $olf |
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429 | $olf SetInput [$tr GetOutput] |
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430 | |
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431 | set olm $this-olmapper$_counter |
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432 | vtkPolyDataMapper $olm |
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433 | $olm SetInput [$olf GetOutput] |
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434 | |
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435 | set ola $this-olactor$_counter |
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436 | vtkActor $ola |
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437 | $ola SetMapper $olm |
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438 | eval [$ola GetProperty] SetColor 0 0 0 |
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439 | $this-ren AddActor $ola |
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440 | lappend _actors($this-ren) $ola |
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441 | |
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442 | lappend _obj2vtk($dataobj) $olf $olm $ola |
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443 | |
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444 | # |
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445 | # Add a legend with the scale. |
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446 | # |
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447 | set lg $this-legend$_counter |
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448 | vtkScalarBarActor $lg |
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449 | $lg SetLookupTable $lu |
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450 | [$lg GetPositionCoordinate] SetCoordinateSystemToNormalizedViewport |
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451 | [$lg GetPositionCoordinate] SetValue 0.1 0.1 |
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452 | $lg SetOrientationToHorizontal |
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453 | $lg SetWidth 0.8 |
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454 | $lg SetHeight 1.0 |
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455 | |
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456 | set tp [$lg GetLabelTextProperty] |
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457 | eval $tp SetColor [_color2rgb $itk_option(-foreground)] |
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458 | $tp BoldOff |
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459 | $tp ItalicOff |
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460 | $tp ShadowOff |
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461 | #eval $tp SetShadowColor [_color2rgb gray] |
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462 | |
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463 | $this-ren2 AddActor2D $lg |
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464 | lappend _actors($this-ren2) $lg |
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465 | lappend _obj2vtk($dataobj) $lg |
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466 | |
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467 | incr _counter |
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468 | } |
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469 | } |
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470 | _fixLimits |
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471 | } |
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472 | |
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473 | # ---------------------------------------------------------------------- |
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474 | # USAGE: _zoom in |
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475 | # USAGE: _zoom out |
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476 | # USAGE: _zoom reset |
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477 | # |
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478 | # Called automatically when the user clicks on one of the zoom |
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479 | # controls for this widget. Changes the zoom for the current view. |
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480 | # ---------------------------------------------------------------------- |
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481 | itcl::body Rappture::ContourResult::_zoom {option} { |
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482 | switch -- $option { |
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483 | in { |
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484 | set camera [$this-ren GetActiveCamera] |
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485 | set zoom [$camera Zoom 1.25] |
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486 | $this-renWin Render |
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487 | } |
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488 | out { |
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489 | set camera [$this-ren GetActiveCamera] |
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490 | set zoom [$camera Zoom 0.8] |
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491 | $this-renWin Render |
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492 | } |
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493 | reset { |
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494 | $this-ren ResetCamera |
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495 | [$this-ren GetActiveCamera] Zoom 1.5 |
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496 | $this-renWin Render |
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497 | $this-renWin2 Render |
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498 | } |
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499 | } |
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500 | } |
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501 | |
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502 | # ---------------------------------------------------------------------- |
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503 | # USAGE: _move click <x> <y> |
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504 | # USAGE: _move drag <x> <y> |
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505 | # USAGE: _move release <x> <y> |
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506 | # |
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507 | # Called automatically when the user clicks/drags/releases in the |
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508 | # plot area. Moves the plot according to the user's actions. |
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509 | # ---------------------------------------------------------------------- |
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510 | itcl::body Rappture::ContourResult::_move {option x y} { |
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511 | switch -- $option { |
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512 | click { |
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513 | blt::busy configure $itk_component(area) -cursor fleur |
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514 | set _click(x) $x |
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515 | set _click(y) $y |
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516 | } |
---|
517 | drag { |
---|
518 | if {[array size _click] == 0} { |
---|
519 | _move click $x $y |
---|
520 | } else { |
---|
521 | set w [winfo width $itk_component(plot)] |
---|
522 | set h [winfo height $itk_component(plot)] |
---|
523 | set dx [expr {double($x-$_click(x))/$w}] |
---|
524 | set dy [expr {double($y-$_click(y))/$h}] |
---|
525 | foreach actor $_actors($this-ren) { |
---|
526 | foreach {ax ay az} [$actor GetPosition] break |
---|
527 | $actor SetPosition [expr {$ax+$dx}] [expr {$ay-$dy}] 0 |
---|
528 | } |
---|
529 | $this-renWin Render |
---|
530 | |
---|
531 | set _click(x) $x |
---|
532 | set _click(y) $y |
---|
533 | } |
---|
534 | } |
---|
535 | release { |
---|
536 | _move drag $x $y |
---|
537 | blt::busy configure $itk_component(area) -cursor left_ptr |
---|
538 | catch {unset _click} |
---|
539 | } |
---|
540 | default { |
---|
541 | error "bad option \"$option\": should be click, drag, release" |
---|
542 | } |
---|
543 | } |
---|
544 | } |
---|
545 | |
---|
546 | # ---------------------------------------------------------------------- |
---|
547 | # USAGE: _fixLimits |
---|
548 | # |
---|
549 | # Used internally to apply automatic limits to the axes for the |
---|
550 | # current plot. |
---|
551 | # ---------------------------------------------------------------------- |
---|
552 | itcl::body Rappture::ContourResult::_fixLimits {} { |
---|
553 | $this-ren ResetCamera |
---|
554 | [$this-ren GetActiveCamera] Zoom 1.5 |
---|
555 | $this-renWin Render |
---|
556 | $this-renWin2 Render |
---|
557 | } |
---|
558 | |
---|
559 | # ---------------------------------------------------------------------- |
---|
560 | # USAGE: _color2rgb <color> |
---|
561 | # |
---|
562 | # Used internally to convert a color name to a set of {r g b} values |
---|
563 | # needed for vtk. Each r/g/b component is scaled in the range 0-1. |
---|
564 | # ---------------------------------------------------------------------- |
---|
565 | itcl::body Rappture::ContourResult::_color2rgb {color} { |
---|
566 | foreach {r g b} [winfo rgb $itk_component(hull) $color] break |
---|
567 | set r [expr {$r/65535.0}] |
---|
568 | set g [expr {$g/65535.0}] |
---|
569 | set b [expr {$b/65535.0}] |
---|
570 | return [list $r $g $b] |
---|
571 | } |
---|
572 | |
---|
573 | # ---------------------------------------------------------------------- |
---|
574 | # CONFIGURATION OPTION: -background |
---|
575 | # ---------------------------------------------------------------------- |
---|
576 | itcl::configbody Rappture::ContourResult::background { |
---|
577 | foreach {r g b} [_color2rgb $itk_option(-background)] break |
---|
578 | $this-ren SetBackground $r $g $b |
---|
579 | $this-renWin Render |
---|
580 | $this-ren2 SetBackground $r $g $b |
---|
581 | $this-renWin2 Render |
---|
582 | } |
---|
583 | |
---|
584 | # ---------------------------------------------------------------------- |
---|
585 | # CONFIGURATION OPTION: -foreground |
---|
586 | # ---------------------------------------------------------------------- |
---|
587 | itcl::configbody Rappture::ContourResult::foreground { |
---|
588 | after cancel [itcl::code $this _rebuild] |
---|
589 | after idle [itcl::code $this _rebuild] |
---|
590 | } |
---|