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This question already has an answer here:

The task is to scale a polygon in QGIS. The procedure is performed tracing the polygon and then apply a scaling factor ( the factor used is " Distance on the ground" / " Distance on map " ) .

Both ArcGIS and AutoCAD there is the "scale" tool.

Is there any way to do Qgis or plugin?

marked as duplicate by underdark qgis May 11 '16 at 19:20

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