c9028e46fe
Problem description To display a shape, the ViewProvider creates a mesh of the shape data. The resolution depends also on the two parameters "Angular Deflection" and "Deviation" in the View properties. (The values of these parameters are also updated for all objects when changing these settings in the Preferences dialog). Changing the parameters from a high value to a lower value has an immediate effect on the displayed shape -- for example a circle will be displayed finer with more line segments. But changing the parameter back to the higher value (with less resolution) will keep the finer view-mesh instead of calculating a coarser one. To get back to the coarse view, the object has to be manually recomputed or the file re-opened. Solution I just set the meshing parameter AllowQualityDecrease to True. I guess that this was not implemented before because this parameter is quite new (introduced in OCC v7.5 in the year 2020).
Your own 3D parametric modeler
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Overview
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Freedom to build what you want FreeCAD is an open-source parametric 3D modeler made primarily to design real-life objects of any size. Parametric modeling allows you to easily modify your design by going back into your model history to change its parameters.
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Create 3D from 2D and back FreeCAD lets you to sketch geometry constrained 2D shapes and use them as a base to build other objects. It contains many components to adjust dimensions or extract design details from 3D models to create high quality production-ready drawings.
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Designed for your needs FreeCAD is designed to fit a wide range of uses including product design, mechanical engineering and architecture, whether you are a hobbyist, programmer, experienced CAD user, student or teacher.
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Cross platform FreeCAD runs on Windows, macOS and Linux operating systems.
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Underlying technology
- OpenCASCADE A powerful geometry kernel, the most important component of FreeCAD
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The pages below contain up-to-date build instructions:
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Help > About FreeCAD > Copy to clipboard; - Post a Step-By-Step explanation on how to recreate the issue;
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