[Dune] Notification from Dune

Flyspray dune at hal.iwr.uni-heidelberg.de
Tue Apr 10 10:24:21 CEST 2007


The following task has been changed.  The new details are below.  For
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FS#246 - geometryType() method for entities
User who did this: - Oliver Sander (sander)

Attached to Project - Dune
Summary - geometryType() method for entities
Task Type - Feature Request
Category - Grid
Status - New
Assigned To - 
Operating System - All
Severity - Medium
Priority - Normal
Reported Version - SVN
Due in Version - 
Due Date - Undecided
Percent Complete - 50%
Details - I suggest to introduce a method geometryType() in entity for
the following reasons:

1)Currently one has to use entity.geometry().type() to get the
  of an entity. This seems to be a very costly way e.g. in ALUGRID. I
  ALUGRID constructs Geometry objects when geometry() is called and
  everytime the GeometryType of an entity is needed.
2)This problem occurs everytime you want to write portable code for
  grids which could have different element types. E.g. the mcmgmapper
works this way.
3)The GeometryType is primary a property of the entity and not only of
the geometry.
  This is obvious since you need (GeometryType,level, levelindex) or
(GeometryType, leafindex)
  to fully qualify an entity.
4)The method is easy to implement, since grids with only one type now
it apriory and
  grids with multiple types could just forward geometry().type() if
there is no better way.

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