This option of Face Blend allows extending the blend surface on the adjacent faces smoothly connected to the selected walls. This simplifies the operation definition by letting select just one face per a wall. The system will attempt propagating the blend surface on all adjacent faces as far as possible.
Face-face blend without tangential propagation |
Face-face blend with tangential propagation |
1. Left face 2. Right wall |
Propagate option can't be used for disc and isoparametric blend types.
Propagate option is applicable when defining boundary conditions. This allows specifying just one edge for defining boundary conditions if all bounding edges connect in a smooth chain.