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89 <h1>OCC 3D Viewer</h1>
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91 <p><span style="font-weight: bold;"><B>OCC (Open CasCade) 3D viewer</B></span>
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92 has been developed on the basis of Open CASCADE Technology. This is the
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93 default viewer for Geometry Module, providing good representation of construction
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94 and transformation of geometrical objects. Only this viewer allows to
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95 work with groups and sub-shapes. This viewer can also work in Mesh module,
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96 however, it doesn't allow to visualize meshes. </p>
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100 <p>The functions of OCC viewer are available via its Viewer Toolbar. Buttons
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101 marked with small downward triangles have extended functionality which
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102 can be accessed by locking on them with left mouse button. </p>
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106 <p><img src="pics/image95.gif" x-maintain-ratio="TRUE" width="291px" height="29px" border="0" class="img_whs1"></p>
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110 <ul type="disc" class="whs2">
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112 <li class=kadov-p><p><img src="pics/image77.gif" x-maintain-ratio="TRUE" width="26px" height="25px" border="0" class="img_whs3"> <span style="font-weight: bold;"><B>Dump
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113 View</B></span> - exports an object from the viewer in bmp, png, jpg or jpeg
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114 image format. </p></li>
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116 <li class=kadov-p><p><img src="pics/image88.gif" x-maintain-ratio="TRUE" width="27px" height="25px" border="0" class="img_whs4"> <span style="font-weight: bold;"><B>Show/Hide
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117 Trihedron</B></span> - shows or hides coordinate axes. </p></li>
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119 <li class=kadov-p><p><img src="pics/image96.gif" x-maintain-ratio="TRUE" width="24px" height="23px" border="0" class="img_whs5"> <span
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120 style="font-weight: bold;"><B>Fit all - </B></span>allows
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121 to select a point to be the center of a scene representing all displayed
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122 objects in the visible area.<span style="font-weight: bold;"> <B></B></span></p></li>
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124 <li class=kadov-p><p> <img src="pics/image97.gif" x-maintain-ratio="TRUE" width="24px" height="24px" border="0" class="img_whs6"> <span style="font-weight: bold;"><B>Fit area</B></span> - resizes
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125 the view to place in the visible area only the contents of a frame drawn
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126 with pressed left mouse button.</p></li>
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128 <li class=kadov-p><p><img src="pics/image98.gif" x-maintain-ratio="TRUE" width="25px" height="24px" border="0" class="img_whs7"> <span style="font-weight: bold;"><B>Zoom</B></span>
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130 to zoom in and out. </p></li>
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132 <li class=kadov-p><p><img src="pics/image99.gif" x-maintain-ratio="TRUE" width="23px" height="23px" border="0" class="img_whs8"> <span style="font-weight: bold;"><B>Panning</B></span>
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133 - if the represented objects are greater that the visible area and you
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134 don't wish to use <span style="font-weight: bold;"><B>Fit all</B></span> functionality,
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135 click on this button and you'll be able to drag the scene to see its remote
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138 <li class=kadov-p><p><img src="pics/image100.gif" x-maintain-ratio="TRUE" width="24px" height="24px" border="0" class="img_whs6"> <span style="font-weight: bold;"><B>Global
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139 panning</B></span> - represents all displayed objects in the visible area.
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142 <li class=kadov-p><p><img src="pics/image89.gif" x-maintain-ratio="TRUE" width="26px" height="26px" border="0" class="img_whs9"> <span style="font-weight: bold;"><B>Rotation</B></span>
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143 - allows to rotate the selected object using the mouse. </p></li>
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145 <li class=kadov-p><p><img src="pics/image102.gif" x-maintain-ratio="TRUE" width="78px" height="147px" border="0" class="img_whs10"> These buttons orientate the scene
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146 strictly about coordinate axes.</p></li>
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148 <li class=kadov-p><p><img src="pics/image91.gif" x-maintain-ratio="TRUE" height="26px" width="29px" border="0" class="img_whs11"> <span style="font-weight: bold;"><B>Reset</B></span>
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149 - restores the default position (isometric) of objects in the scene.</p></li>
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151 <li class=kadov-p><p><img src="pics/image103.gif" x-maintain-ratio="TRUE" width="26px" height="24px" border="0" class="img_whs12"> <span style="font-weight: bold;"><B>Memorise
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152 view</B></span> - saves the current position of objects in the scene</p></li>
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154 <li class=kadov-p><p><img src="pics/image105.gif" x-maintain-ratio="TRUE" width="26px" height="25px" border="0" class="img_whs3"> <span style="font-weight: bold;"><B>Restore
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155 view - </B></span>restores the<span style="font-weight: bold;"> <B></B></span>saved
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156 position of objects in the scene</p></li>
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158 <li class=kadov-p><p><img src="pics/image86.gif" x-maintain-ratio="TRUE" width="28px" height="29px" border="0" class="img_whs13"> <span style="font-weight: bold;"><B>Clone
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159 view</B></span> - opens a new duplicate scene.</p></li>
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161 <li class=kadov-p><p><img src="pics/image106.gif" x-maintain-ratio="TRUE" width="29px" height="26px" border="0" class="img_whs14"> <span style="font-weight: bold;"><B>Clipping
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162 -</B></span> allows to create cross-section views (clipping planes) of geometrical
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168 <p class="whs15"><img src="pics/clipping.png" x-maintain-ratio="TRUE" width="395px" height="280px" border="0" class="img_whs16"></p>
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170 <p class="whs15"> </p>
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172 <ul type="disc" class="whs2">
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174 <li class=kadov-p><p class="whs15"><span style="font-weight: bold;"><B>Base
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175 point</B></span> - allows to define the coordinates of the base point for
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176 the clipping plane. Click </p></li>
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178 <li class=kadov-p><p class="whs17"><span style="font-weight: bold;"><B>Reset</B></span>
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179 - returns the base point to coordinate origin. </p></li>
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181 <li class=kadov-p><p class="whs15"><span style="font-weight: bold;"><B>Direction</B></span>
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182 - allows to define the orientation of the clipping plane.</p></li>
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184 <li class=kadov-p><p class="whs17"><span style="font-weight: bold;"><B>Invert</B></span>
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185 - allows to select which part of the object will be removed and which
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186 will remain after clipping. </p></li>
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188 <li class=kadov-p><p class="whs15"><span style="font-weight: bold;"><B>Preview</B></span>
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189 - allows to see the results of clipping in the viewer.</p></li>
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