Changes between Version 4 and Version 5 of rfc49_curve_geometries


Ignore:
Timestamp:
Nov 5, 2014, 1:03:38 PM (9 years ago)
Author:
Even Rouault
Comment:

Add precision about the fact that OGRwkbGeometryType values and actual WKB export of geometry are not directly coupled

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  • rfc49_curve_geometries

    v4 v5  
    9292ISO SQL/MM Part 3 / SFA 1.2.1, but there was not a clear advantage in doing so,
    9393with respect to the impact on existing users of OGR API.
     94
     95Note: the mix of different ways of expression the Z dimension (wkb25DBit bit
     96for "old" geometry types, and +1000 for "new" geometry types) has no direct impact
     97on the export of geometries as WKB. There is no direct coupling between the
     98values of OGRwkbGeometryType and what goes to WKB geometries. The exportToWkb()
     99method of OGRGeometry takes a wkbVariant parameter to select the variant of WKB that
     100is wished.
    94101
    95102The use of the wkb25DBit value (0x8000000) that was sometimes used to test if