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77 lines
3.2 KiB
Plaintext
77 lines
3.2 KiB
Plaintext
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/*!
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\page create_groups_page Generation of Groups
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This option is available in some dialogs. To activate it please check
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<b>Generate Groups</b> check box. When it is checked, it is possible to define
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the prefix for generated groups names using <b>Group Names Prefix</b> input
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field.
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\image html gen_group_dlg.png "Generate groups option in a dialog"
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The groups are created along with the result of the operation when
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\b Apply or <b>Apply and Close</b> button is clicked. Each generated group
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represents a set of sub-shapes of the result that satisfies certain conditions.
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The groups of the following types can be generated:
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- \b Down - sub-shapes starting the result, e.g. bottom lid
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for the pipe creation operation.
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- \b Up - sub-shapes ending the result, e.g. top lid
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for the pipe creation operation.
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- \b Side1, \b Side2 - sub-shapes corresponding to each side
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of the result.
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- \b Other - faces generated from the bounding edges of
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\b Down group.
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The groups are named according to the following naming rule:
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If <b>Group Names Prefix</b> is set <b><Prefix>_<Type></b>, otherwise
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the name is \b <Type>. The following figure shows group names created with
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the prefix \b Group:
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\image html gen_group_tree.png "Group_Down, Group_Up, Group_Side1 and Group_Side2 are generated"
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The general behavior of this functionality is the following:
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<ul>
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<li>If <b>Generate Groups</b> option is not set, the groups are not generated.</li>
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<li>If starting and ending sub-shapes of the result are the same, e.g. if there is
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a closed path for pipe construction, <b>Generate Groups</b> option is disabled
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in the dialog box:</li>
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\image html gen_group_disabled.png "Disabled option in the Pipe Construction dialog if the path is closed"
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\n
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<li>Otherwise If the path is not closed edge/wire, the groups are created depending
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on the profile:</li>
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<ul>
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<li>Profile is unclosed edge or wire: \b Down, \b Up, \b Side1, \b Side2:</li>
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\image html gen_group_sides.png "Pipe with created groups Down(Red), Up(Green), Side1(Blue) and Side2(Yellow)"
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\n
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<li>Profile is closed edge or wire, face or shell: \b Down, \b Up, \b Other:</li>
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\image html gen_group_other.png "Created groups Down(Red), Up(Green) and Other(Yellow)"
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</ul>
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</ul>
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\b Down and \b Up groups contain:
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- Edges if the profile is edge or wire;
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- Faces if the profile is face or shell.
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\b Side1 and \b Side2 groups contain edges generated from the first and
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last vertices of the profile edge or wire correspondingly. The first and
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last vertices are determined taking into account edge/wire orientation.
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\b Other group represents faces generated from the bounding edges of profile.
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The behavior in TUI is the following:
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- Each Python function that supports groups generation has a flag
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\b IsGenerateGroups which is equal to \b False by default.
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- If \b IsGenerateGroups is not set the groups are not created; the returned
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value is GEOM_Object that represents a result of the operation.
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- If \b IsGenerateGroups is set the operation returns a list of GEOM_Object.
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Its first element is a result, the remaining ones are the groups in the order:
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\b Down, \b Up, \b Side1, \b Side2 for opened profile or \b Down, \b Up,
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\b Other for closed profile.
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- If \b IsGenerateGroups is set and the path is closed an error occurs.
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*/
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