I have a set of polygons of different shapes and sizes in shapefile1.

What I need to do, is to create new polygons around the boundaries of the polygons in shapefile1, larger by x meters.

Any suggestions?

  • Please ask one question per Question (it's the only way to avoid multiple partial answers, and improves response rate). A question like this needs to have a graphic to distiguish scaling from buffering. You should always specify the exact software available, and for ArcGIS, the license level and available extensions. Please edit the question. – Vince Nov 10 '16 at 11:43
  • So, your suggestion is to divide this question in two different topics? – Mattia Nov 10 '16 at 11:58
  • Unless you can rewrite it, three different questions, since point-in-poly may fail with irregular shapes. – Vince Nov 10 '16 at 12:20
  • So I edit this one for the first question and I create a new discussion for point 2&3 – Mattia Nov 10 '16 at 12:23

Try Buffer geoprocessing.

You can find it under Geoprocessing\buffer, on buffer window specify the shapefile of exciting polygons and the distance(scale factor) you want to buffer around existing polygons.

  • Buffers have large holes inside each polygon. Not sure this is desired. – klewis Nov 10 '16 at 14:59
  • buffer, just buffer any feature on specified distance, if your feature have holes of couse it will maintain the first geometry so new features will be with holes. for details watch cwecU screenshots – Florjan Nov 11 '16 at 14:35

Use the buffer tool under geoprocessing menu. Input the first shapefile and state the distance you want. See the image attached. enter image description here

  • Thank you for the reply. The scale tool is exactly what I need, the problem is how can I say to arcmap to do this for "x meters" given that the only parameter that they ask to me is a "scale factor" – Mattia Nov 10 '16 at 12:00

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