1 | # -*- mode: tcl; indent-tabs-mode: nil -*- |
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2 | |
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3 | # ---------------------------------------------------------------------- |
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4 | # COMPONENT: drawing - 2D drawing of data |
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5 | # ====================================================================== |
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6 | # AUTHOR: Michael McLennan, Purdue University |
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7 | # Copyright (c) 2004-2012 HUBzero Foundation, LLC |
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8 | # |
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9 | # See the file "license.terms" for information on usage and |
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10 | # redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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11 | # ====================================================================== |
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12 | package require Itcl |
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13 | package require BLT |
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14 | |
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15 | namespace eval Rappture { |
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16 | # forward declaration |
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17 | } |
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18 | |
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19 | itcl::class Rappture::Drawing { |
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20 | private variable _drawing |
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21 | private variable _xmlobj |
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22 | private variable _actors |
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23 | private variable _styles |
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24 | private variable _shapes |
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25 | private variable _labels |
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26 | private variable _types |
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27 | private variable _data |
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28 | private variable _hints |
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29 | private variable _units |
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30 | private variable _limits |
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31 | |
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32 | constructor {xmlobj path} { |
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33 | # defined below |
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34 | } |
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35 | destructor { |
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36 | # defined below |
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37 | } |
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38 | public method limits {axis} |
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39 | public method label { elem } |
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40 | public method type { elem } |
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41 | public method style { elem } |
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42 | public method shape { elem } |
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43 | public method values { elem } |
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44 | public method data { elem } |
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45 | public method hints {{keyword ""}} |
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46 | public method components { args } |
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47 | } |
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48 | |
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49 | # ---------------------------------------------------------------------- |
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50 | # Constructor |
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51 | # ---------------------------------------------------------------------- |
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52 | itcl::body Rappture::Drawing::constructor {xmlobj path} { |
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53 | package require vtk |
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54 | if {![Rappture::library isvalid $xmlobj]} { |
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55 | error "bad value \"$xmlobj\": should be Rappture::library" |
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56 | } |
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57 | set _xmlobj $xmlobj |
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58 | set _drawing [$xmlobj element -as object $path] |
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59 | set _units [$_drawing get units] |
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60 | |
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61 | set xunits [$xmlobj get units] |
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62 | if {"" == $xunits || "arbitrary" == $xunits} { |
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63 | set xunits "um" |
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64 | } |
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65 | array set _limits { |
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66 | xMin 0 |
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67 | xMax 0 |
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68 | yMin 0 |
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69 | yMax 0 |
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70 | zMin 0 |
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71 | zMax 0 |
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72 | } |
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73 | # determine the overall size of the device |
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74 | foreach elem [$_xmlobj children $path] { |
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75 | switch -glob -- $elem { |
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76 | polygon* { |
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77 | set _data($elem) [$_xmlobj get $path.$elem.vtk] |
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78 | set _data($elem) [string trim $_data($elem)] |
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79 | set _styles($elem) [$_xmlobj get $path.$elem.about.style] |
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80 | set _labels($elem) [$_xmlobj get $path.$elem.about.label] |
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81 | set _types($elem) polydata |
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82 | } |
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83 | polydata* { |
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84 | set _data($elem) [$_xmlobj get $path.$elem.vtk] |
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85 | set _data($elem) [string trim $_data($elem)] |
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86 | set _styles($elem) [$_xmlobj get $path.$elem.about.style] |
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87 | set _labels($elem) [$_xmlobj get $path.$elem.about.label] |
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88 | set _types($elem) polydata |
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89 | } |
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90 | streamlines* { |
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91 | set _data($elem) [$_xmlobj get $path.$elem.vtk] |
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92 | set _data($elem) [string trim $_data($elem)] |
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93 | set _styles($elem) [$_xmlobj get $path.$elem.about.style] |
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94 | set _labels($elem) [$_xmlobj get $path.$elem.about.label] |
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95 | set _types($elem) streamlines |
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96 | } |
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97 | glyphs* { |
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98 | set _data($elem) [$_xmlobj get $path.$elem.vtk] |
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99 | set _data($elem) [string trim $_data($elem)] |
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100 | set _styles($elem) [$_xmlobj get $path.$elem.about.style] |
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101 | set _labels($elem) [$_xmlobj get $path.$elem.about.label] |
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102 | set _shapes($elem) [$_xmlobj get $path.$elem.about.shape] |
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103 | set _types($elem) glyphs |
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104 | } |
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105 | molecule* { |
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106 | set pdbdata [$_xmlobj get $path.$elem.pdb] |
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107 | if { $pdbdata != "" } { |
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108 | set contents [Rappture::PdbToVtk $pdbdata] |
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109 | } else { |
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110 | set contents [$_xmlobj get $path.$elem.vtk] |
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111 | } |
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112 | set _data($elem) [string trim $contents] |
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113 | set _styles($elem) [$_xmlobj get $path.$elem.about.style] |
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114 | set _labels($elem) [$_xmlobj get $path.$elem.about.label] |
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115 | set _types($elem) molecule |
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116 | } |
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117 | } |
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118 | } |
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119 | foreach {key path} { |
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120 | group about.group |
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121 | label about.label |
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122 | color about.color |
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123 | camera about.camera |
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124 | type about.type |
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125 | xlabel xaxis.label |
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126 | xdesc xaxis.description |
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127 | xunits xaxis.units |
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128 | xscale xaxis.scale |
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129 | xmin xaxis.min |
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130 | xmax xaxis.max |
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131 | ylabel yaxis.label |
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132 | ydesc yaxis.description |
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133 | yunits yaxis.units |
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134 | yscale yaxis.scale |
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135 | ymin yaxis.min |
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136 | ymax yaxis.max |
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137 | zlabel zaxis.label |
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138 | zdesc zaxis.description |
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139 | zunits zaxis.units |
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140 | zscale zaxis.scale |
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141 | zmin zaxis.min |
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142 | zmax zaxis.max |
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143 | } { |
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144 | set str [$_drawing get $path] |
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145 | if {"" != $str} { |
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146 | set _hints($key) $str |
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147 | } |
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148 | } |
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149 | foreach {key} { axisorder } { |
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150 | set str [$_drawing get $key] |
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151 | if {"" != $str} { |
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152 | set _hints($key) $str |
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153 | } |
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154 | } |
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155 | } |
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156 | |
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157 | # ---------------------------------------------------------------------- |
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158 | # Destructor |
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159 | # ---------------------------------------------------------------------- |
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160 | itcl::body Rappture::Drawing::destructor {} { |
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161 | # empty |
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162 | } |
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163 | |
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164 | # |
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165 | # label -- |
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166 | # |
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167 | # Returns the label of the named drawing element. |
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168 | # |
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169 | itcl::body Rappture::Drawing::label { elem } { |
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170 | if { [info exists _labels($elem)] } { |
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171 | return $_labels($elem) |
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172 | } |
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173 | return "" |
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174 | } |
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175 | |
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176 | # |
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177 | # type -- |
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178 | # |
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179 | # Returns the type of the named drawing element. |
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180 | # |
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181 | itcl::body Rappture::Drawing::type { elem } { |
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182 | if { [info exists _types($elem)] } { |
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183 | return $_types($elem) |
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184 | } |
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185 | return "" |
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186 | } |
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187 | |
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188 | # |
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189 | # style -- |
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190 | # |
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191 | # Returns the style string of the named drawing element. |
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192 | # |
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193 | itcl::body Rappture::Drawing::style { elem } { |
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194 | if { [info exists _styles($elem)] } { |
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195 | return $_styles($elem) |
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196 | } |
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197 | return "" |
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198 | } |
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199 | |
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200 | # |
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201 | # shape -- |
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202 | # |
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203 | # Returns the shape of the glyphs in the drawing element. |
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204 | # |
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205 | itcl::body Rappture::Drawing::shape { elem } { |
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206 | set shape "" |
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207 | if { [info exists _shapes($elem)] } { |
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208 | return $_shapes($elem) |
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209 | } |
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210 | switch -- $shape { |
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211 | arrow - cone - cube - cylinder - dodecahedron - |
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212 | icosahedron - line - octahedron - sphere - tetrahedron { |
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213 | return $shape |
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214 | } |
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215 | default { |
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216 | puts stderr "unknown glyph shape \"$shape\"" |
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217 | } |
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218 | } |
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219 | return "" |
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220 | } |
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221 | |
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222 | # |
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223 | # data -- |
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224 | # |
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225 | # Returns the data of the named drawing element. |
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226 | # |
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227 | itcl::body Rappture::Drawing::data { elem } { |
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228 | if { [info exists _data($elem)] } { |
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229 | return $_data($elem) |
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230 | } |
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231 | return "" |
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232 | } |
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233 | |
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234 | # ---------------------------------------------------------------------- |
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235 | # method values |
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236 | # Returns a base64 encoded, gzipped Tcl list that represents the |
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237 | # Tcl command and data to recreate the uniform rectangular grid |
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238 | # on the nanovis server. |
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239 | # ---------------------------------------------------------------------- |
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240 | itcl::body Rappture::Drawing::values { elem } { |
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241 | if { [info exists _data($elem)] } { |
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242 | return $_data($elem) |
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243 | } |
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244 | return "" |
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245 | } |
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246 | |
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247 | itcl::body Rappture::Drawing::components { args } { |
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248 | return [array names _data] |
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249 | } |
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250 | |
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251 | # ---------------------------------------------------------------------- |
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252 | # method limits <axis> |
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253 | # Returns a list {min max} representing the limits for the |
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254 | # specified axis. |
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255 | # ---------------------------------------------------------------------- |
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256 | itcl::body Rappture::Drawing::limits {which} { |
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257 | set min "" |
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258 | set max "" |
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259 | foreach key [array names _data] { |
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260 | set actor $_actors($key) |
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261 | foreach key { xMin xMax yMin yMax zMin zMax} value [$actor GetBounds] { |
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262 | set _limits($key) $value |
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263 | } |
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264 | break |
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265 | } |
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266 | |
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267 | foreach key [array names _actors] { |
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268 | set actor $_actors($key) |
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269 | foreach { xMin xMax yMin yMax zMin zMax} [$actor GetBounds] break |
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270 | if { $xMin < $_limits(xMin) } { |
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271 | set _limits(xMin) $xMin |
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272 | } |
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273 | if { $xMax > $_limits(xMax) } { |
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274 | set _limits(xMax) $xMax |
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275 | } |
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276 | if { $yMin < $_limits(yMin) } { |
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277 | set _limits(yMin) $yMin |
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278 | } |
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279 | if { $yMax > $_limits(yMax) } { |
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280 | set _limits(yMax) $yMax |
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281 | } |
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282 | if { $zMin < $_limits(zMin) } { |
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283 | set _limits(zMin) $zMin |
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284 | } |
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285 | if { $zMax > $_limits(zMax) } { |
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286 | set _limits(zMax) $zMax |
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287 | } |
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288 | } |
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289 | switch -- $which { |
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290 | x { |
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291 | set min $_limits(xMin) |
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292 | set max $_limits(xMax) |
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293 | set axis "xaxis" |
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294 | } |
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295 | y { |
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296 | set min $_limits(yMin) |
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297 | set max $_limits(yMax) |
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298 | set axis "yaxis" |
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299 | } |
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300 | v - z { |
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301 | set min $_limits(zMin) |
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302 | set max $_limits(zMax) |
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303 | set axis "zaxis" |
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304 | } |
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305 | default { |
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306 | error "unknown axis description \"$which\"" |
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307 | } |
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308 | } |
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309 | return [list $min $max] |
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310 | } |
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311 | |
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312 | # ---------------------------------------------------------------------- |
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313 | # USAGE: hints ?<keyword>? |
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314 | # |
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315 | # Returns a list of key/value pairs for various hints about plotting |
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316 | # this curve. If a particular <keyword> is specified, then it returns |
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317 | # the hint for that <keyword>, if it exists. |
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318 | # ---------------------------------------------------------------------- |
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319 | itcl::body Rappture::Drawing::hints { {keyword ""} } { |
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320 | if 0 { |
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321 | if {[info exists _hints(xlabel)] && "" != $_hints(xlabel) |
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322 | && [info exists _hints(xunits)] && "" != $_hints(xunits)} { |
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323 | set _hints(xlabel) "$_hints(xlabel) ($_hints(xunits))" |
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324 | } |
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325 | if {[info exists _hints(ylabel)] && "" != $_hints(ylabel) |
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326 | && [info exists _hints(yunits)] && "" != $_hints(yunits)} { |
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327 | set _hints(ylabel) "$_hints(ylabel) ($_hints(yunits))" |
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328 | } |
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329 | } |
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330 | if {[info exists _hints(group)] && [info exists _hints(label)]} { |
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331 | # pop-up help for each curve |
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332 | set _hints(tooltip) $_hints(label) |
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333 | } |
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334 | if {$keyword != ""} { |
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335 | if {[info exists _hints($keyword)]} { |
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336 | return $_hints($keyword) |
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337 | } |
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338 | return "" |
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339 | } |
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340 | return [array get _hints] |
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341 | } |
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342 | |
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