UTM Geo Map supports polygons with Hole Inside, this polygon with holes can be formed due to geometry operations such as Overlay and Buffering or created manually with the following steps:
1: In the Buffer/Overlay or Area/Distance module, click the existing polygon then click Edit / Editing Tools.
2: Click Hole Inside
3: Click Add Hole Inside and select options (Register manually or base on covered existing polygon), see picture below:
Register Manually
- Register hole polygon INSIDE existing polygon, you can also use spline mode to smooth your hole polygon, then click SAVE.- Polygon with Hole Inside is automatically generated. Each polygon can have many holes inside.
From Covered Polygons (Available on version 3.8.5 and above)
- The program will automatically detect whether there are already polygons covered by the selected polygons and make holes in the polygons that are formed.In addition to creating a polygon with a Hole Inside, you can also delete Holes Inside from a polygon. The following video explains how to work with polygon hole inside:
Polygon hole from covered polygons:
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