TopTools_ListOfShape and TopoDS_ListOfShape

ziyoo's picture
ziyoo
Wed, 01/27/2010 - 01:52
Forums: 
Other usage issues

Hi ALL,

What's different between TopTools_ListOfShape and TopoDS_ListOfShape?
TopTools_DataMapOfIntegerListOfShape takes TopTools_ListOfShape as second key. Why isn't it TopoDS_ListOfShape?

Thanks in advance for any help.

ZIYOO

Roman Lygin's picture
Roman Lygin
Wed, 01/27/2010 - 12:57

Hi Ziyoo,
There's effectively no difference. Both are instantiations of TCollection_List with TopoDS_Shape. However since these are not true template instantiations (but are code generations from CDL language with different #define's), one cannot replace the other.
OCC sometimes abuses such duplications but in 6.3.1 the team had made an effort to eliminate much of these.
Hope this helps,
Roman
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