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Detection of mismatches in the number of lines that adjoin each other

  • July 5, 2017
  • 2 replies
  • 29 views
K
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I need to detect if there is a mismatch in the number of polylines that adjoin each other. For example one polyline in the middle, four either side (or it could be any number of mismatches: 3-2-3 for example. Polylines aren't snapped together; it's for a powerline project so it's not a requirement.

I can group the lines together and assign them grouped id's together using the attached process.

One final point; I only need to calculate the relationship of polylines that have 'neighbours' on either side and not on polylines with only one set of 'neighbours' (see below)

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2 replies

lars_de_vries
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Hi @kyle_d_wade,

I am not sure whether I understand your question correct, but I think you want to know whether a certain polyline has neighboring polylines, but you also mention whether lines are connected to each other. Looking at your data, I assume that the parallel polylines are offsetted perpendicular to the other ones. I do not see an attached process, only images, so that does not help either.

Could you describe the different steps you want to test? I think that will help in finding the correct solution.

K
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  • kyle_d_wade
  • Author
  • 4 replies
  • July 6, 2017

Hi @kyle_d_wade,

I am not sure whether I understand your question correct, but I think you want to know whether a certain polyline has neighboring polylines, but you also mention whether lines are connected to each other. Looking at your data, I assume that the parallel polylines are offsetted perpendicular to the other ones. I do not see an attached process, only images, so that does not help either.

Could you describe the different steps you want to test? I think that will help in finding the correct solution.

If there is four lines in group 1, one line in group 2, and four lines in group 3 how do I detect if there are less lines in group two compared to groups 1 and 3 (more lines on either side)? The lines aren't snapped together. I have managed to count how many wires are in each group with Statistics Calculator.

 

 

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