[OpenMap Users] Polygons with holes in 4.6.2

From: Alexander Sokolov <sokolov_at_system.ecology.su.se>
Date: Thu, 17 Feb 2005 23:58:33 +0100

Hi Don,

It seems the code to handle polygons with holes in the ESRIPolygonRecord
conflicts with the new default behaviour of the BasicGeometry and we
need to call

in the ESRIPolygonRecord.

// if (false && ispolyg) {
            if (ispolyg) {
                // There's a problem here with OMPolys that wrap
                // around the earth, putting them in OMAreaLists makes
                // them draw lines through the map. Need to sort that
                // out before enabling this code by removing 'false'
                // in if statement.
                sublist = new OMAreaList();

Please find modified file in the attachment


> OpenMap 4.6.2 has been released and is available on at
> http://openmap.bbn.com. The main new features of this release are:
> Other changes:

> * Modified the ESRIPolygonRecord to include the donated code to handle
> polygon holes using OMAreaList. This code is disabled, however,
> because OMAreaList doesn't really handle shapes that go around the
> earth yet, and having this modification breaks world-level shapefile
> display. OMAreaList needs to be fixed before this code is enabled
> full-time.
> * Updated BasicGeometry to have the option of connecting shapes that
> are appended, instead of automatically not doing that. Updated
> OMAreaList to make that BasicGeometry append call with the connect
> parameter.

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Received on Thu Feb 17 2005 - 18:20:41 EST

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