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Clip polygon by lines

  • August 26, 2021
  • 10 replies
  • 94 views

ienesaglam60
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Ekran AlıntısıSelected blue area is polygon. Red lines is line.

I want to cut the blue area according to the lines and create 3 areas.

 

 

Best answer by gio

@ienesaglam60​ 

 

Hi, the same workbench but now with your sampe data.

Tolerances for snapping have been changed accordingly.

 

Workspace is attached.

 

Here is picture of result

PolygonClipping

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10 replies

danilo_fme
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  • 2077 replies
  • August 26, 2021

Hi @ienesaglam60​ 

 

Did you try use the transformer LineonAreaOverlayer?

 

 

Thanks in Advance,

 

Danilo


ienesaglam60
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  • 18 replies
  • August 27, 2021

Yes i try but I can't get what I want.Thank you

 


gio
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  • August 27, 2021

@ienesaglam60​ 

 

Coerce area to lines.

Snap your cutting lines to those (vertexsnapping in your example). Use polygon as anchor to keep polygon as is. (topologybuilder is also used for this as the later versions have tolerance)

Build area.

 


danilo_fme
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  • August 27, 2021

Yes i try but I can't get what I want.Thank you

 

Please, could you send us your data sample?

 

 

Thanks in Advance,

Danilo


gio
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  • August 27, 2021

@ienesaglam60​ 

 

Hi here is an workbench

Using Topologybuileder or Interscetor.

Crucial is of course Snapping and snappingtypes. (depends on quality on the inputobjects. In my case i drew your examples in Inkscape so it was not topologicaly tight))

 

 

Grets.

 


gio
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  • August 27, 2021

a pic

PolygonClipping


ienesaglam60
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  • 18 replies
  • August 27, 2021

Please, could you send us your data sample?

 

 

Thanks in Advance,

Danilo

attached sample dataset.


ienesaglam60
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  • 18 replies
  • August 27, 2021

attached sample dataset.this ws I'm not sure if it's appropriate.


gio
Contributor
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  • Contributor
  • 2252 replies
  • Best Answer
  • August 27, 2021

@ienesaglam60​ 

 

Hi, the same workbench but now with your sampe data.

Tolerances for snapping have been changed accordingly.

 

Workspace is attached.

 

Here is picture of result

PolygonClipping


ienesaglam60
Contributor
Forum|alt.badge.img+3
  • Author
  • Contributor
  • 18 replies
  • August 27, 2021

This is awesome . Thank you so much.