id summary reporter owner description type status priority milestone component version resolution keywords cc 1873 ST_InterpolatePoint returns empty M value arho pramsey "If the interpolated point is directly on the line, M is 0: '''Example - point not on line, correct M value:''' SELECT ST_InterpolatePoint('LINESTRING M (0 0 0, 10 0 20)', 'POINT(5 5)'); st_interpolatepoint --------------------- 10 '''Example - point on line, M value is 0:''' SELECT ST_InterpolatePoint('LINESTRING M (0 0 0, 10 0 20)', 'POINT(5 0)'); st_interpolatepoint --------------------- 0 '''Expected Result:''' 10 '''Version information:''' POSTGIS=""2.0.0 r9605"" GEOS=""3.3.2-CAPI-1.7.2"" PROJ=""Rel. 4.7.1, 23 September 2009"" GDAL=""GDAL 1.9.0, released 2011/12/29"" LIBXML=""2.7.8"" RASTER PostgreSQL 9.1.2 on i686-pc-linux-gnu, compiled by gcc-4.6.real (Debian 4.6.2-4) 4.6.2, 32-bit " defect closed medium PostGIS 2.0.1 postgis 2.0.x fixed