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Question

Reducing Polygon area by set percentage / Keeping the shape of it but now with a smaller view and area.

  • June 9, 2023
  • 3 replies
  • 186 views
T

I have a polygon (shp or minfo format) assuming it has an area of 5 square miles. Need to reduce the area by 70% resulting to 3.5 square miles now but still keeping somewhat the outline but of a smaller size (like polygon output shrinks) due to the applied percentage. SCALER transformer is closed to what I need but it only applies the percentage to the total perimeter of the polygon and not the area. Any transformer that could do this?

3 replies

geomancer
Evangelist
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  • geomancerEvangelist
  • Evangelist
  • June 9, 2023

Set the square root of 0.7 as the Scale Factor in the Scaler.

@sqrt(0.7)

 

Scale_Factor_sqrt

T
  • tiki13457
  • Author
  • June 9, 2023

Thanks for your reply on this. Recommended setting works and have verified the calculated area and retained shape of the polygon (reduced one). Appreciate the help.image

geomancer
Evangelist
Forum|alt.badge.img+64
  • geomancerEvangelist
  • Evangelist
  • June 12, 2023

Thanks for your reply on this. Recommended setting works and have verified the calculated area and retained shape of the polygon (reduced one). Appreciate the help.image

You're welcome, I'm glad I could help you out.

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