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?
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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.– VinceCommented Nov 10, 2016 at 11:43
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So, your suggestion is to divide this question in two different topics?– MattiaCommented Nov 10, 2016 at 11:58
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Unless you can rewrite it, three different questions, since point-in-poly may fail with irregular shapes.– VinceCommented Nov 10, 2016 at 12:20
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So I edit this one for the first question and I create a new discussion for point 2&3– MattiaCommented Nov 10, 2016 at 12:23
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gis.stackexchange.com/questions/215813/…– FelixIPCommented Nov 10, 2016 at 18:33
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2 Answers
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.
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Buffers have large holes inside each polygon. Not sure this is desired.– klewisCommented Nov 10, 2016 at 14:59
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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– rifloCommented Nov 11, 2016 at 14:35
Use the buffer tool under geoprocessing menu. Input the first shapefile and state the distance you want. See the image attached. 
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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"– MattiaCommented Nov 10, 2016 at 12:00