This is my input geometry
This is my desired output: I want to generate the red line.
CenterlineReplacer does not do a good job btw.
How to generate straight center line for a polygon?
Userlevel 2
+16
- Contributor
- 2180 replies
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11 October 2019
Maybe not the best, but I would try this:
Use the BoundingBoxReplacer to create a bounding box.
Then use the GeometryCoercer on both area and bounding box, to create 2 closed lines.
Then use the Intersector (Node output) to find the 2 intersection points.
Connect the 2 points to create the required straight line (2DPointConnector).
Hope this helps.
+21
- Contributor
- 955 replies
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11 October 2019
What about using centerpointreplacer and draw a line between top centerpoint and bottompoint?
Userlevel 4
+25
- Safer
- 2399 replies
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16 October 2019
Which version of FME are you using? Because the CentreLineReplacer has received some updates and fixes in recent versions. I tried this in 2019 using an approximation of your geometry, and it worked fine:
See attached workspace.
Which version of FME are you using? Because the CentreLineReplacer has received some updates and fixes in recent versions. I tried this in 2019 using an approximation of your geometry, and it worked fine:
See attached workspace.
How come the line looks so weird? It is not straight and doesn't touch the edges.
Userlevel 4
+25
- Safer
- 2399 replies
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22 October 2019
How come the line looks so weird? It is not straight and doesn't touch the edges.
Try the medial line mode. That should make it straight. Then you could do something like the Intersector, AnchoredSnapper, or LineExender to extend it to the full extents of the polygon (I've no idea why it doesn't reach that far).
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