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Number of Points for a shape cannot more than 4000

ksek

Hi,

When i merged a few polygons together, if the resulted layer > 4000 points, the resulted shape will split into multiple polygon.

Is there anyway to allow polygon to be > 4000 points?

Thanks,

Kean Sek.

Parents

  • In general, no. There are some long-standing historical limitations where 4000 points apply, and this is (mostly) enforced within Virtuoso. One exception is that the dbLayer* functions do allow you to output more than that number of points (they have an argument to control this), but the challenge is that this might limit you being able to use other SKILL functions later. For example, you can't set the point list back to itself if it has more than 4000 points, or you can't use the dbPointArray* functions with input lists which are more than 4000 points long.

    There's a request to review and fix this limit, but unfortunately it involves checking a lot of places in the overall code and so it's not been prioritised yet. For the most part there's no real need to have merged polygons with larger number of points (although it can make a bit of a coding challenge at times - for example I had to do a bit of work in my gridded circle/donut code example in article 20486159 on the support site to ensure that behaved with large number of vertices).

    Andrew.

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  • In general, no. There are some long-standing historical limitations where 4000 points apply, and this is (mostly) enforced within Virtuoso. One exception is that the dbLayer* functions do allow you to output more than that number of points (they have an argument to control this), but the challenge is that this might limit you being able to use other SKILL functions later. For example, you can't set the point list back to itself if it has more than 4000 points, or you can't use the dbPointArray* functions with input lists which are more than 4000 points long.

    There's a request to review and fix this limit, but unfortunately it involves checking a lot of places in the overall code and so it's not been prioritised yet. For the most part there's no real need to have merged polygons with larger number of points (although it can make a bit of a coding challenge at times - for example I had to do a bit of work in my gridded circle/donut code example in article 20486159 on the support site to ensure that behaved with large number of vertices).

    Andrew.

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