[Geowanking] FeatureType Modeling
jgarnett at refractions.net
Fri Aug 19 07:45:32 PDT 2005
Paul Selormey wrote:
>Please review the document. It has spelling and other mistakes.
>For instance, on the Shapefile section you will find
>Feature entry in shp file, using shx to find a row in dxf file
>Shapefile definitely has nothing to with dxf file! you mean dbf file, right?
Thanks - this is an initial draft (It is also a wiki if you want to just
hack the document). This morning I am comparing the tradeoff between
FeatureType inheirtence and how you refer to Attribtues.
A lot of the toolkits use support AttributeType lookup by int, while at
the same time saying they support a "super" FeatureType. The first
person to try an implement this would be in for a rude shock when making
a collection of mixed content ...
I find it facinating that all the OO toolkits are having trouble with
the problem. Perhaps if people were using a dynamic language like Ruby.
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