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<title> Misfit Model 3D Help - Boolean Operation Window </title>
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<h1>Boolean Operation Window</h1>
<p>
The <b>Boolean Operation Window</b> is a dockable window that
allows you to combine two mesh objects into a single object.
Open the <b>Boolean Operation Window</b> by selecting
"Model | Boolean Operation..."
The supported operations are listed below.
</p>
<ul>
<li><b>Fuse</b> -- Combine overlapping meshes, any triangles
that intersect will be split so that the meshes share
vertices along the edges where they intersect. No
faces are removed by the Fuse operation.</li>
<li><b>Union</b> -- Combine overlapping meshes like the
Fuse operation, then removes internal faces (faces inside
the volume of either enclosed mesh.</li>
<li><b>Subtraction</b> -- Removes the selected mesh and
any part of Object A that is inside the volume of the
selected mesh.</li>
<li><b>Intersection</b> -- Removes any volume inside of Object A
or the current selected mesh that is not contained within both
objects</li>
</ul>
<table border="0" cellpadding="2" cellspacing="0"
summary="Boolean operation example images">
<tr>
<td><img src="olh_images/screencaps/example_bool_object_a.png" width="350" height="350" alt="Select object A"/>
<p>Select Object A</p>
</td>
<td><img src="olh_images/screencaps/example_bool_object_b.png" width="350" height="350" alt="Select object B"/>
<p>Select Object B</p>
</td>
</tr>
<tr>
<td><img src="olh_images/screencaps/example_bool_fuse.png" width="350" height="350" alt="Fuse"/>
<p>Fuse</p>
</td>
<td><img src="olh_images/screencaps/example_bool_union.png" width="350" height="350" alt="Union"/>
<p>Union</p>
</td>
</tr>
<tr>
<td><img src="olh_images/screencaps/example_bool_subtract.png" width="350" height="350" alt="Subtraction"/>
<p>Subtraction</p>
</td>
<td><img src="olh_images/screencaps/example_bool_intersect.png" width="350" height="350" alt="Intersection"/>
<p>Intersection</p>
</td>
</tr>
</table>
<p>
For the union, intersection, and subtraction operations to work
properly, all meshes involved must be enclosed (otherwise the
behavior of the face-removal step is undefined). If the meshes
are not enclosed you can still use the fuse operation and manually
remove the faces that must be removed.
</p>
<p>
To peform a boolean operation, select an enclosed mesh and then
click <b>Set Object A</b>. Then select another enclosed mesh and
click <b>[op] With Selected</b> where <b>[op]</b> is the name of
the selected operation (the button name changes when you select
an operation).
</p>
<p>
After using a boolean operation you may want to use
<a href="olh_commands.html#simplifymesh">Simplify Mesh</a> to combine
some newly created faces.</li>
</p>
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Copyright © 2004-2008, Kevin Worcester
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