PartDesign Preferences: Difference between revisions

From FreeCAD Documentation
m (typos)
(describe 3 options)
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| {{MenuCommand|Automatically check model after boolean operation}}
| {{MenuCommand|Automatically check model after boolean operation}}
| If checked, the geometry of the model will be checked using the feature [[Part CheckGeometry|CheckGeometry]].
| If checked,
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| {{MenuCommand|Automatically refine model after boolean operation}}
| {{MenuCommand|Automatically refine model after boolean operation}}
| If checked, the model will be refined using the feature [[Part RefineShape|RefineShape]].
| If checked,
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| {{MenuCommand|Automatically refine model after sketch-based operation}}
| {{MenuCommand|Automatically refine model after sketch-based operation}}
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| {{MenuCommand|Add name of base object}}
| {{MenuCommand|Add name of base object}}
| This option has no effect (sic!)
| If checked,
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Revision as of 00:46, 24 July 2019

The preferences screen of the PartDesign are found in the menu Edit → Preferences → Part design.

General

In the General tab you can specify the following:

Name Description
Automatically check model after boolean operation If checked, the geometry of the model will be checked using the feature CheckGeometry.
Automatically refine model after boolean operation If checked, the model will be refined using the feature RefineShape.
Automatically refine model after sketch-based operation If checked,
Add name of base object This option has no effect (sic!)

Shape view

In the Shape view tab you can specify the following:

Name Description
Maximum deviation depending on the model bounding box Maximal linear deflection of the tesselated objects from their surface
Maximum angular deflection Maximal angular deflection from one tesselated object section to the next section

In order to display an object efficiently its surface is tesselated, i.e. it is displayed with some small deviations from it real surface. This applies not only to PartDesign models, but also to other objects in FreeCAD.
There is a lower limit for the tesselation of 0.01%. If you really want to spend the additional time you can reduce the lower limit even further by opening the menu Tools → Edit parameters... This opens the parameter editor where you navigate to BaseApp → Preferences → Mod → Part. Right click on Mesh deviation choose in the context menu Change value. Set the value to the minimum tesselation of your choice. Please keep in mind that the value is in %, i.e. for a value of 0.005% you have to enter "0.00005". The smallest value possible is 1e-7. Note: In the preferences menu you will still see 0.01% even if you set a lower value.