Edge Collapse surface node

Collapses edges and faces to their centerpoints.

All

Parameters

Example files

See also: Blast, Dissolve, Fuse, Facet

Using EdgeCollapse

Select the edges or faces you want to collapse.
Click the EdgeCollapse tool on the Polygon tab.

Parameters

Group

The faces or edges to collapse. This field is treated as a set of edges. Edges that are not part of any entity in the group field do not get deleted.

Normally you will use this operator in the viewer and simply select the faces/edges you want, however if you need to you can also use a space-separated list of the following codes in this field to specify edges:

Code	Meaning
`n`	All edges in primitive number `n`.
`pn`	Point number `n` / edges with point number `n`.
`nem`	Edge number `m` of primitive `n`.
`pa-b`	Edges between point number `a` and point number `b`.

Remove Degenerate

Removes any degenerate polygons left after collapsing.

Recompute Point Normals

Recomputes point normals (if they exist).

Example files

EdgeCollapseBasic

$HFS/houdini/help/examples/nodes/sop/edgecollapse/EdgeCollapseBasic.cmd

Load | Launch

The Edge Collapse SOP simply allows the deletion of edges, as shown in this example. Point numbers are rearranged to accommodate the missing edge.

Usages in other examples

Example name	Example for