1. Union
Merge multiple features into one.
Union all selected features in [layer_name] into a single merged polygon. Dissolve internal boundaries between adjacent features.
2. Intersection
Find overlapping areas between layers.
Calculate the intersection between [layer_1] and [layer_2]. Create a new layer containing only the areas where both layers overlap.
3. Difference
Subtract one layer from another.
Calculate the difference by removing [layer_2] areas from [layer_1]. The result should show only the parts of [layer_1] not covered by [layer_2].
4. Clip
Clip features to a boundary.
Clip [input_layer] using [clip_layer] as the boundary. Keep only the portions of features that fall within the clip boundary.
5. Dissolve
Merge features by attribute.
Dissolve [layer_name] features by [field_name]. Merge all adjacent features with the same [field_name] value into single features.
6. Simplify
Reduce geometry complexity.
Simplify the geometries in [layer_name] with a tolerance of [distance]. Reduce the number of vertices while preserving the overall shape.
7. Centroid
Calculate center points.
Generate centroid points for all polygons in [layer_name]. Create a new point layer with the center of each polygon.
8. Convex Hull
Create bounding polygons.
Generate a convex hull around all features in [layer_name]. Create the smallest convex polygon that contains all features.
9. Voronoi Polygons
Create Voronoi/Thiessen polygons.
Generate Voronoi polygons from points in [point_layer]. Each polygon should contain all area closest to its point than any other point.
10. Line to Polygon
Convert lines to polygons.
Convert the closed lines in [line_layer] to polygons. Create polygon features from any lines that form closed loops.