[fdo-trac] #594: SHP can't handle Z and M value in the same time.

FDO trac_fdo at osgeo.org
Mon Nov 30 03:08:15 EST 2009


#594: SHP can't handle Z and M value in the same time.
--------------------------+-------------------------------------------------
 Reporter:  leaf          |         Owner:  gregboone
     Type:  defect        |        Status:  new      
 Priority:  major         |     Milestone:  3.5.0    
Component:  SHP Provider  |       Version:  3.4.0    
 Severity:  3             |    Resolution:           
 Keywords:                |   External_id:  1270270  
--------------------------+-------------------------------------------------
Comment (by leaf):

 http://www.esri.com/library/whitepapers/pdfs/shapefile.pdf

 According to SHP specification, Mmin and Mmax is equal to 0.0, if not
 Measured type. If the shapefile is empty (that is, has no records), the
 values for Xmin, Ymin, Xmax, and Ymax are unspecified. Mmin and Mmax can
 contain "no data" values for shapefiles of measured shape types that
 contain no measures.

 However, SHP provider always uses "no data" no matter shp file contrains
 measured shape types.

-- 
Ticket URL: <http://trac.osgeo.org/fdo/ticket/594#comment:2>
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