Create an outer line buffer of another line.

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08-29-2017 03:03 AM
ChamnabEM
New Contributor II

Hi!

I have a line (Image: Black line) and I want to create a buffered on the right side of the line (Image: Blue line) in the Model Builder.

Could you share any idea on this?

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JayantaPoddar
MVP Esteemed Contributor

You need to define the line_side (Optional) parameter in Buffer tool. You need ArcGIS Desktop Advanced license to avail this option.

The sides of the input features that will be buffered.

  • FULL —For line input features, buffers will be generated on both sides of the line. For polygon input features, buffers will be generated around the polygon and will contain and overlap the area of the input features. For point input features, buffers will be generated around the point. This is the default.
  • LEFT —For line input features, buffers will be generated on the topological left of the line. This option is not valid for polygon input features.
  • RIGHT —For line input features, buffers will be generated on the topological right of the line. This option is not valid for polygon input features.
  • OUTSIDE_ONLY —For polygon input features, buffers will be generated only outside the input polygon (the area inside the input polygon will be erased from the output buffer). This option is not valid for line input features.


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6 Replies
KevinDunlop
Occasional Contributor III

In the Buffer tool there is Side Type value.  The default is Full but there is options for Right and Left which will buffer only one side of your line.  When you use the in modelbuilder just set this value in the tool parameters.

ChamnabEM
New Contributor II

Thanks Kevin. For left side or right side, this is just simply the left/right as we see on screen?

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JayantaPoddar
MVP Esteemed Contributor

You need to define the line_side (Optional) parameter in Buffer tool. You need ArcGIS Desktop Advanced license to avail this option.

The sides of the input features that will be buffered.

  • FULL —For line input features, buffers will be generated on both sides of the line. For polygon input features, buffers will be generated around the polygon and will contain and overlap the area of the input features. For point input features, buffers will be generated around the point. This is the default.
  • LEFT —For line input features, buffers will be generated on the topological left of the line. This option is not valid for polygon input features.
  • RIGHT —For line input features, buffers will be generated on the topological right of the line. This option is not valid for polygon input features.
  • OUTSIDE_ONLY —For polygon input features, buffers will be generated only outside the input polygon (the area inside the input polygon will be erased from the output buffer). This option is not valid for line input features.


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ChamnabEM
New Contributor II

Thank Jayanta.

About the left/right side, what is the topological right of line? Is this the same as left/right that we see on screen?

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DarrenWiens2
MVP Honored Contributor

Each line has a beginning and end. Right/left are relative to the line from beginning to end.

ChamnabEM
New Contributor II

Thanks Darren. This helped me to use this tool completely.

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