Topology checks that clip new and edited polygons to the boundaries of existing features so they never overlap - and cut a matching hole when one feature fully encloses another. Pro+ feature on Mapit GIS for Android and iOS, built for cadastral and professional data capture.
Generate a polygon buffer at a chosen radius around any existing feature (point, polyline, or polygon). Pro+ feature on Mapit GIS for Android and iOS.
Combine two adjacent features on the same layer into a single feature. Pro+ feature on Mapit GIS for Android and iOS.
Split an existing polygon or polyline feature into two by drawing a single cut line across it. Pro+ feature on Mapit GIS for Android and iOS.
Choose how new vertices are added to line and polygon features in Mapit GIS - crosshair, tap-on-map, distance and bearing, or by typing exact coordinates. Cycle between modes from the edit toolbar.
Snap new and dragged vertices to existing features for topologically clean shared vertices and watertight boundaries. Pro+ feature on Mapit GIS.