pygalmesh makes it easy to create high-quality 3D volume and surface
meshes.
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CGAL offers two different approaches for mesh generation:
- Meshes defined implicitly by level sets of functions.
- Meshes defined by a set of bounding planes.
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pygalmesh provides a front-end to the first approach, which has the
following advantages and disadvantages:
- All boundary points are guaranteed to be in the level set within
any specified residual. This results in smooth curved surfaces.
- Sharp intersections of subdomains (e.g., in unions or
differences of sets) need to be specified manually (via feature edges,
see below), which can be tedious.
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On the other hand, the bounding-plane approach (realized by mshr),
has the following properties:
- Smooth, curved domains are approximated by a set of bounding
planes, resulting in more of less visible edges.
- Intersections of domains can be computed automatically, so
domain unions etc. have sharp edges where they belong.
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pygalmesh and mshr are therefore complementary.
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pygalmesh also interfaces CGAL's 3D periodic mesh generation.
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This package installs the pygalmesh module for Python 3.
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It also provides the utility scripts pygalmesh-from-inr and
pygalmesh-volume-from-surface for generating volume meshes from
INR or surface meshes.
