[postgis-devel] [PostGIS] #1902: [raster] GDAL Surfer export creates files with minY and maxY swapped in header.
PostGIS
trac at osgeo.org
Thu Jul 5 13:48:00 PDT 2012
#1902: [raster] GDAL Surfer export creates files with minY and maxY swapped in
header.
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Reporter: febi | Owner: pracine
Type: defect | Status: new
Priority: medium | Milestone: PostGIS 2.0.2
Component: raster | Version: 2.0.x
Keywords: raster GSBG GSAG |
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Comment(by dustymugs):
The C code underlying ST_AsGDALRaster passes along your desired format and
the PostGIS raster converted to a GDAL MEM dataset to GDALCreateCopy().
GDALCreateCopy calls the appropriate format's CreateCopy function to do
the actual conversion.
Is the scale along the Y-axis positive or negative? The values for minY
and maxY may be flipped because the scale along the Y-axis is positive.
Calling ST_ScaleY() on the raster will tell you the answer.
--
Ticket URL: <http://trac.osgeo.org/postgis/ticket/1902#comment:3>
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