Carsten Ehbrecht wrote:
Hello,
i'm testing uDIG to use it as a base GIS application for my company. I would like to load 50000-500000 point features from a postgis database. The uDIG table view can't handle so many features and the map rendering is slow. When working with OpenJUMP and gvSIG i don't have these problems. Especially the table is working with no problems (using JTable, Swing).
- Why do these problems occur in uDIG? (using swt table? using swt rendering?)
The SWT Table can be lazy - so it should be as scalable as the JTable
implementation.
The difference in rendering speed is based around our choice to "not
load" the data into memory; you should find that uDig can work with
larger datasets.
Is your PostGIS remote? And of course do you have it correctly indexed
etc...
- How can these problems be fixed?
If you are rolling your own application using you can make the choice to
load your points into memory (I do caution that this is not a scalable
approach). Checking your database configuration is where I would start.
Cheers,
Jody
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