TrueGrid® FAQ: How can a part be adapted to geometry on a different scale?

How can a part be adapted to geometry on a different scale?

1. Change the size of the initial mesh in TrueGrid® so that it matches the geometry without modifying the geometry. The results will be a mesh that matches the geometry.

This requires scaling the coordinates in the block/cylinder command and all of the move commands (mb, mbi, pb, pbi, tr) or can be easily done with one new command (tr) if there are no insprt commands. Alternatively, a scale factor is needed and an expression in place of every number (for example 1.2 would be replaced with [1.2*%sf] where sf is the scale factor parameter).

2. Modify the geometry so that it matches the initial mesh used in the previous model. The result will be a mesh that is the same size as previous model, not the size of the new geometry.

This is easily done by scaling the geometry when importing or creating the geometry. The transformation option sca %sf would be added at the end of the geometry import or geometry creation command where sf is the scale factor parameter.

3. Modify the geometry so that the initial mesh does not need to be changed. After projection to the modified geometry, scale the mesh so that it matches the size of the original geometry. The result is the same as 1 above. This is usually the easiest thing to do but is more complicated to understand.

This uses the same method as in 2 with an additional command to scale the mesh after it is projected. Use the csca %sf as one of the first commands to scale the final mesh.

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