#818 Topological embedding and indices of subentities are missing
Metadata
| Property | Value |
|---|---|
| Reported by | Carsten Gräser (graeser@math.fu-berlin.de) |
| Reported at | Sep 7, 2010 09:22 |
| Type | Feature Request |
| Version | Git (pre2.4) [autotools] |
| Operating System | Unspecified / All |
| Last edited by | Carsten Gräser (graeser@math.fu-berlin.de) |
| Last edited at | Feb 14, 2011 12:05 |
| Closed by | Carsten Gräser (graeser@math.fu-berlin.de) |
| Closed at | Feb 14, 2011 12:05 |
| Closed in version | Unknown |
| Resolution | Implemented |
| Comment | The subIndex() method has been extended for codim>0 entities. |
Description
Currently there is no information on the embedding of subentities available. If you e.g. have an element e you can not get the local index of the i-th vertex of some e.subEntity(j) within e. Furthermore you can not even obtain the index/id of this vertex.
This fact makes the subEntity method of Entity<0> and the iterators and geometries of codim 0<c<dim entities almost useless.
As a first step I propose to add the subIndex/subId method also for codim c>0 entities. Then one could construct the embedding at least by comparing indices/ids.
Furthermore it would be nice to provide the embedding directly similar to the subEntity method of the reference elements.