[geos-devel] [GEOS] #721: WKBReader fails reading little-endian MULTIPOINT M EWKB

[GEOS]

#721: WKBReader fails reading little-endian MULTIPOINT M EWKB
----------------------+-----------------------------------------------------
 Reporter:  benmorel  |       Owner:  geos-devel@…              
     Type:  defect    |      Status:  new                       
 Priority:  blocker   |   Milestone:  3.4.3                     
Component:  Default   |     Version:  svn-trunk                 
 Severity:  Critical  |    Keywords:                            
----------------------+-----------------------------------------------------
 This seemed related to my previous ticket #707 at first glance, but I
 double-checked this is EWKB and not ISO WKB, so it should be handled
 properly by libGEOS.

 Test code (executed with PHP bindings):

 $reader = new GeosWKBReader();
 $reader->readHEX('0104000040020000000101000040000000000000f03f000000000000004000000000000008400101000040000000000000004000000000000008400000000000001040');

 The reader fails with "ParseException: Unknown WKB type 0".

 Although this is valid EWKB, as confirmed by PostGIS:

 SELECT
 ST_AsText(ST_GeomFromEWKB(DECODE('0104000040020000000101000040000000000000f03f000000000000004000000000000008400101000040000000000000004000000000000008400000000000001040',
 'HEX')));

 > MULTIPOINT M (1 2 3,2 3 4)

-- 
Ticket URL: <http://trac.osgeo.org/geos/ticket/721>
GEOS <http://trac.osgeo.org/geos>
GEOS (Geometry Engine - Open Source) is a C++ port of the Java Topology Suite (JTS).