Changes between Version 87 and Version 88 of WKTRasterTutorial01

Timestamp:

Jul 2, 2010, 5:47:09 AM (14 years ago)

Author:

pracine

Comment:

—

WKTRasterTutorial01

@@ -153 +153 @@
 As the rasters in the "srtm_tiled" table are in a different spatial reference system than the point you might not see then overlap with the caribou points. Right-clic on the added layer and select "Zoom To Layer" to adjust the display to their extent and see them.
 
-You can also view the complete area covered by the raster coverage as one unique geometry by doing this:
+You can also view the complete area covered by the raster coverage as one unique geometry by doing this query:
 
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@@ -163 +163 @@
 
 [[Image(WKTRasterViewOfVectorizedTile.gif, align=right, 50%)]]
-If you want to go to the pixel level and verify the integrity of the values associated to a sample of the raster,  you can (thanks to Jorge Arevalo and GDAL) view a vectorization of some tiles in OpenJUMP as in the right side image. Just type the following SQL query in the same query dialog:
+If you want to go to the pixel level and verify the integrity of the values associated to a sample of the raster,  you can (thanks to Jorge Arevalo and GDAL) view a vectorization of some tiles in OpenJUMP (as in the right side image) using the ST_DumpAsPolygons function. Just type the following SQL query in the same query dialog:
 
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