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106 lines
4.2 KiB
Plaintext
106 lines
4.2 KiB
Plaintext
/*!
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\page partition_page Partition
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To produce a \b Partition in the <b>Main Menu</b> select <b>Operations - > Partition</b>
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This operation builds a compound by intersection of several shapes
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with a set of tool objects or with a plane.
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The \b Result will be \b GEOM_Object.
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<br><h2>Intersection of two shapes.</h2>
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\image html partition1.png
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<b>Arguments:</b> Name + 2 lists of shapes (the shapes from the
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first list will be intersected with the shapes from the second list) +
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Resulting Type of shape.
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As far as the intersection of two objects can produce any type of
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geometrical objects, <b>Resulting type</b> box allows choosing the
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preferrable result, i.e. a solid, a shell, a list of faces, etc.
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<b>Resulting type</b> has to be equal or lower than the type of the
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\em Objects. In other words, if the \em Objects don't contain any
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shape of this type, Partition fails.
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<b>Keep shapes of lower type</b> checkbox manages standalone shapes of
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type other than the \em Limit. If it is checked, lower dimension
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objects will be preserved, else they will be lost.
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For example, you do a partition of a box (Solid) and a face (Face)
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without any tool. If you choose Resulting Type "Solid", you will
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obtain a compound of two solids (let's the box will be splitted by the
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face on two parts), but if you will also check <b>Keep shapes of lower
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type</b> checkbox, you will obtain a compound of two solids and one
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face (the face will have a hole where the original face lays inside
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the box, see corresponding \ref partition_picture_3 "picture" below).
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<b>No shapes self intersection</b> check box affects only input shapes
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of the Compound type. If this option is switched off (default
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behavior) each input compound will be automatically exploded to the
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sub-shapes and intersection between those shapes will be also
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computed. If this option is switched on, the intersection between
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sub-shapes will be not performed. In this case the Partition algorithm
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will work faster, but result might differ from the default behavior.
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<b>Advanced option:</b>
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\ref restore_presentation_parameters_page "Set presentation parameters and subshapes from arguments".
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\note Partition is a kind of complex operation, result of it depends
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on the initial shapes quality. Sometimes, if partition fails,
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some healing operations could help. Try <b>Shape Processing</b>
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and <b>Limit Tolerance</b> in such cases. See also \ref
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tui_limit_tolerance "TUI example" of shape healing.
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<b>TUI Command (with sub-shapes intersection):</b>
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<em>geompy.MakePartition(ListOfShapes, ListOfTools, ListOfKeepInside,
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ListOfRemoveInside, Limit, RemoveWebs, ListOfMaterials,
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KeepNonlimitShapes)</em>
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<b>TUI Command (no sub-shapes intersection):</b>
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<em>geompy.MakePartitionNonSelfIntersectedShape(ListOfShapes,
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ListOfTools, ListOfKeepInside, ListOfRemoveInside, Limit, RemoveWebs,
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ListOfMaterials, KeepNonlimitShapes)</em>
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Here,
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- \em ListOfShapes is a list of shapes to be intersected
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- \em ListOfTools is a list of shapes to intersect the shapes from
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ListOfShapes
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- \em Limit is a Type of resulting shapes and \em KeepNonlimitShapes
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is a flag that allows to preserve standalone shapes of low dimension
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(than \em Limit) in the result.
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- Other parameters are obsolete and kept only for compatibility with
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previous versions of SALOME.
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<br><h2>Intersection of a Shape and a Plane.</h2>
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\image html partition2.png
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<b>Arguments:</b> Name + 1 shape to be intersected + 1 cutting plane.
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<b>Advanced option:</b>
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\ref restore_presentation_parameters_page "Set presentation parameters and subshapes from arguments".
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<b>TUI Command:</b>
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<em>geompy.MakeHalfPartition(Shape, Plane)</em> where
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- \em Shape is a source shape to be intersected by \em Plane
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- \em Plane is a tool shape, to intersect the \em Shape.
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<b>Example:</b>
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\image html partitionsn1.png "Box intersected by a plane"
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\image html partitionsn2.png "Result of intersection"
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\anchor partition_picture_3
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\image html partitionsn3.png "Result of intersection of a box and a plane (both as \em Objects, no tools) with Resulting type \em Solid and checked \em Keep \em shapes \em of \em lower \em type"
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Our <b>TUI Scripts</b> provide you with useful examples of the use of
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\ref tui_partition "Basic Operations".
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*/
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