I would like to be able to click on a point on a map to select all vector features (from multiple layers) within a specified radius of the point. Can anyone point me in the direction of how to do this please?
The Spatial Query plugin selects only features from 1 layer at a time, and the search radius is only attainable by creating a point, then creating a buffer polygon and using the buffer polygon as a reference feature. Therefore I would have to run this plugin for each layer I'd like to select from. I'm hoping there might be a more simple/less time consuming method.
Ideally I would like to be able to run this spatial query from shapefiles displayed in the QGIS 2.0 GUI, but if it's not possible, the shapefiles are eventually being exported to a PostgreSQL database, so some advice on how to run this type of spatial query from a PostgreSQL database would be really useful also, as I have very limited experience in using them.