Find features inside a region#

Lasso an area of the map to return every feature in the active layer that touches it, then read the matches in the table.

A spatial query asks which features fall inside an area you draw. Lasso a region of the map, and the query returns everything in the active layer that touches it. It then narrows the attribute table to those features, so you can read and export them.

Select Spatial query in the tool palette, where it sits with the two measurement tools, or run it from the command palette.

Draw the region#

Click to place each corner of the region. Two points draw a preview line. Three or more points close into a polygon that follows your cursor. Double-click or press Enter to finish and run the query. Fewer than three points cancels the query. Escape abandons the query and clears any previous results.

The test is intersection, not strict containment. Points must fall inside the region, but lines and polygons only need to touch it. A polygon that straddles the edge of your lasso is therefore a match, not a miss.

Read the matched features#

The results narrow the attribute table, and a bar above it reports how many features matched out of the layer total, with a percentage. Next to the count, the bar summarises up to three numeric properties across the matched features, each as a minimum, a maximum, and an average. That summary is often the whole answer you were after.

Clear on that bar removes the results and returns the table to the full layer. Escape on the map does the same.

Which layer it queries#

A query runs against the active layer only, so select the layer you mean in the Layers panel first. The query skips measurements and the results of earlier queries, so you cannot query your own working by accident.

If the timeline is active, Geo Map calculates the counts against the features visible at the current playhead rather than the whole layer.