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Creating individual polygons


dszarka
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I have two MicroStation Files, one is a parcel map with parcel numbers inside each parcel polygon. The second file is a right of way polygon that intersect the parcels. How do I create individual parcel polygons of just the right of way intersections and attribute each polygon with the parcel number?

Best answer by daveatsafe

Hi @dszarka,

You can attribute the parcel polygons with the parcel number using PointOnAreaOverlayer transformer, with Attribute Accumulation set to Merge Attributes. After this, you can use a Clipper transformer to clip the attributed parcels by the right of way polygon.

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daveatsafe
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  • March 12, 2020

Hi @dszarka,

You can attribute the parcel polygons with the parcel number using PointOnAreaOverlayer transformer, with Attribute Accumulation set to Merge Attributes. After this, you can use a Clipper transformer to clip the attributed parcels by the right of way polygon.


dszarka
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  • March 13, 2020
daveatsafe wrote:

Hi @dszarka,

You can attribute the parcel polygons with the parcel number using PointOnAreaOverlayer transformer, with Attribute Accumulation set to Merge Attributes. After this, you can use a Clipper transformer to clip the attributed parcels by the right of way polygon.

Thank you for your suggestions. I was able to almost accomplish what I wanted to do. The thing that I'm still struggling with is how to write out only the polygons and parcel numbers that have an overlap of 2.


daveatsafe
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  • March 13, 2020
dszarka wrote:

Thank you for your suggestions. I was able to almost accomplish what I wanted to do. The thing that I'm still struggling with is how to write out only the polygons and parcel numbers that have an overlap of 2.

Hi @dszarka,

You can test the value of the _overlaps attribute in a Tester transformer.


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