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The spatial aggregate operations tend to be expensive, especially those that go above and beyond the simple MBR calculation (aggregate union, aggregate convex hull, aggregate. They have been massively improved in 12c through the Vector Performance Acceleration mechanism of Oracle Spatial. The MBR aggregation is simpler, but still needs to do a lot of work, ...


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Based on the SQL present in your query, you may want to change the spatial function you're using. In the past, the SDO_TUNE.EXTENT_OF('TABLE_NAME', 'SPATIAL_COLUMN') has given us better performance and, according to the below link (assuming the documentation has been kept up-to-date), that is the proper way to get the MBR for a table in the specified ...


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I imagine you DID read the documentation before writing your code ? And you DID look at the tutorials that come with Mapviewer ? The default behavior for FOIs is that when you click on it, you will see a popup that contains the values of the variables (table columns) you have configured for that purpose in Mapbuilder. If that is not satisfactory, or if you ...


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In FME, this is as simple as connecting your data to an ArcStroker transformer. From the help page: Converts arc features into lines replacing the feature geometry with a series of edges interpolated along the arc boundary. Ellipse features are converted into polygons by interpolating edges along the elliptical boundary. If the input geometry ...



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