645 reputation
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bio website plaza.ufl.edu/seenhzj
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visits member for 2 years
seen May 18 at 15:18
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Phd Candidate in Department of Geography, University of Florida


Jun
7
accepted Definition of a BBOX in Web GIS
Jun
7
comment Definition of a BBOX in Web GIS
So if the projection is EPSG:900913, the bbox should reflect the boundary of this projected coordinate system right?
Jun
7
asked Definition of a BBOX in Web GIS
May
26
comment BBOX and Projections of WMS services in Geoserver
I am calling the wms service directly on Google Map... Use the image layer and overlay it directly on the base map.
May
26
asked BBOX and Projections of WMS services in Geoserver
May
14
awarded  Commentator
May
14
comment Simple Question: Raster from ArcGIS to Geoserver
Finally I used "gdalwarp -srcnodata 0 -dstalpha" to make a mask to show the transparency of my nodata value.
May
13
comment Simple Question: Raster from ArcGIS to Geoserver
Thank you very much for your detailed instruction. I think everything works fine except for the nodata part. If I set the nodata filed as -9999, the raster would be rendered totally black in openlayer. I will try other methods in GDAL library to adjust this issue.
May
13
accepted Simple Question: Raster from ArcGIS to Geoserver
May
13
revised Simple Question: Raster from ArcGIS to Geoserver
added 46 characters in body
May
13
comment Simple Question: Raster from ArcGIS to Geoserver
You are right. They are GRID file from ESRI...but the question is still here: how can we put those GRID to geoserver?
May
13
asked Simple Question: Raster from ArcGIS to Geoserver
May
7
revised Find the nearest raster cell value based on a vector point
added 245 characters in body
May
7
comment Find the nearest raster cell value based on a vector point
@whuber There is another problem is that I don't know where the outliners are. So there are actually 2 procedures in my process: identify the outliners and assign values to them.
May
7
comment Find the nearest raster cell value based on a vector point
@celenius It works but it took a long time.
May
7
awarded  Supporter
May
7
accepted Find the nearest raster cell value based on a vector point
May
7
comment Find the nearest raster cell value based on a vector point
@whuber: Your method sounds very clever. My question is I am handling data on a global scale and how can I determine the x0 and x1 for the outlining raster?
May
7
comment Find the nearest raster cell value based on a vector point
I have about 15% points have this problem. how can you determine the x0 and x1 for each point?
May
7
awarded  Scholar