Remesh Surface

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The Remesh Surface block provides more control over how the mesh is constructed. It is used to clean up defects in a mesh, consolidate meshes into fewer elements, and/or spatially vary the mesh density.

The edge length input in the Remesh Surface block specifies the approximate edge length of the mesh elements. The input can be a singular, consistent value, or a scalar field, meaning you can spatially vary the size of the mesh.

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The Span angle input is used in the refinement of elements that lie on curves. It signifies the maximum allowed angle that elements on curved surfaces are allowed to span. If we set the span angle to be smaller, we can see that the elements lying on the curve will be refined more to fit the smaller span angle:

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The Growth rate specifies the ratio of element size from one element to another. The number can be anything greater than 1. The smaller the number, the more uniform the mesh. You can see below how changing the growth rate from 2 to 1.05 creates a more uniform mesh.

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The Feature angle input controls the degree to which curved surfaces are converted to flat edges in a mesh. The value represents the maximum allowed angle between two adjacent planes that define an edge. A lower value will result in more planar regions of the mesh where an input surface is curved.

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A minimum feature size can be specified to ensure that small features won’t be obscured in the resulting mesh. The edge length will be targeted throughout the body, but where features approach the min. feature size, the mesh will be refined. If left blank, the default feature size is 0.05% of the input edge length.

For tips on working with complex geometry and using the Remesh Surface block, check out this article: Remesh Surface Block: Tips for Complex Geometry

Interested in learning more about Meshes? Check out Creating Surface Meshes from Implicit Bodies.

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