line on area

Hi ​@ohashkii 

Please, could you share the data or workspace template *.fmwt?

Thanks in Advance,

Danilo

You’re pretty close. I’ve created a workflow that does what you want it to do, I think. 

1. Create the centroid of the polygon using a CenterPointReplacer (this you’ve done already, but if your polygons are not rectangles or other regular shapes, your centroid may be outside the polygon (think of a U-Shaped polygon).
2. Using the NeighborFinder, Create a line between the centroid and the line. Ensure the line is the candidate and the centroids are the base. Notice you will get new attributes called _closest_candidate_x, _closest_candidate_y, _closest_base_x, _closest_base_y. You can use these to generate lines segments from the centroids to your line. 
3. Using the VertexCreator, add a point to the centroids, using the _closest_candidate_x, _closest_candidate_y attributes. 

   

4. Use a Clipper to cut the full line to the boundary of the polygon. Your candidates are the new line segments you created. The Clipper is the original polygon. 

Here are my original polygon and lines.
 

And final output line segments:

And the full workflow:

Thanks....the clipper is fine...I did every thing except clipper....I have used neighbour finder for the green dot on the red line to polygon again ,so I got wrong polygon. 

Thanks again. 

rchoucroun wrote:

You’re pretty close. I’ve created a workflow that does what you want it to do, I think. 

1. Create the centroid of the polygon using a CenterPointReplacer (this you’ve done already, but if your polygons are not rectangles or other regular shapes, your centroid may be outside the polygon (think of a U-Shaped polygon).
2. Using the NeighborFinder, Create a line between the centroid and the line. Ensure the line is the candidate and the centroids are the base. Notice you will get new attributes called _closest_candidate_x, _closest_candidate_y, _closest_base_x, _closest_base_y. You can use these to generate lines segments from the centroids to your line. 
3. Using the VertexCreator, add a point to the centroids, using the _closest_candidate_x, _closest_candidate_y attributes. 

   

4. Use a Clipper to cut the full line to the boundary of the polygon. Your candidates are the new line segments you created. The Clipper is the original polygon. 

Here are my original polygon and lines.
 

And final output line segments:

 

And the full workflow:

 

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