Nontopological Operations for Creating Features from Existing Features: Merge, Buffer, Union, and Intersect Features (Especially for GATE-Geospatial 2022)

Glide to success with Doorsteptutor material for CTET/Paper-1 : get questions, notes, tests, video lectures and more- for all subjects of CTET/Paper-1.

Examrace Books on Mapping, GIS, and Remote Sensing prepares you throughly for a wide range of practical applications.

Nontopological operations are the basic operations that do not involve topology as defined in the coverage model.

The following summarizes nontopological operations that can create new features from existing features:

This Image Shows Creating Features from Existing Features

Merge Features

One can group selected line or polygon features into one feature. If the merged features are not spatially adjacent, they form a feature with multiple parts.

This Figure Shows Merge Four Selected Polygons into One

Buffer Features

One can create a buffer around a line or polygon feature at a specified distance.

Union Features

One can combine features from different layers into one feature. This operation differs from the merge operation because it works with different layers rather than a single layer.

Intersect Features

One can create a new feature from the intersection of overlapped features in different layers.

Developed by: