Removing Overlapping Lines

Hey I have been running particle scripts in which I amass a large number of points. For each of these points I have assigned a circle, and I am not trying to eliminate overlapping circles. Delete Dups doesn't work because it isn't the same line. So basically if two circles are overlapping I need it to select one and delete it, but leave the other.

Thanks!

Attachments:

ParticleCircle.PNG, 391 KB

Replies to This Discussion

Permalink Reply by Rhydro on August 13, 2012 at 2:15am

Do all your circles have the same radius? If so, I think (but I'm not entirely sure) it would be faster to work on the distance between each point, and to cull one out of two when they are too close.

Permalink Reply by Drew Busimre on August 13, 2012 at 2:17am

they do have same radius. I will try what you just suggested

Permalink Reply by Jissi Choi on August 13, 2012 at 2:56am

Here is a solution.. using containment..

Attachments:

overlapped_090006.gh, 7 KB

Permalink Reply by Drew Busimre on August 13, 2012 at 6:04am

I have tried your solution. However I am a little confused. I have set my points to the first Pt function, and have defined my radius as 50mm with a slider. If I understand your definition correctly the bottom one is separate from the top. The top one defines a region of the overlapping circles and then tests if the points are in the region and outputs 0, 1, or 2. Once it goes through the entire function I only have one circle remaining. Could you by any chance specify where you inputed points, circles etc. And also how your bottom function works? Sorry for the misunderstanding, this is probably one of the most complicated scripts I have had to work with. Thank you

Permalink Reply by Jissi Choi on August 13, 2012 at 7:41pm

Oops!!

I missed a wire connection..

The definition used "index"..

For the points of isolated circles,

they are only once contained by the regions..

it means only one "2(inside)"..

so using the indices of that points,

I picked up the corresponding circles..

For the points of overlapped circles,

they are contained twice or more..

I chosed one index of them..

----

Below definition is..

a kind of grasshopper tricks..

The circle component casts from input objects to circles..

In that process, objects except circular curves are discarded..

The following Point and Circle Component is not needed..

Permalink Reply by Rhydro on August 13, 2012 at 6:41am

I'm afraid the RUnion component works in your case, but not for complex shapes like Drew's one.

When there are a lot of circles really close to each other, some region union correspond to the small surfaces between circles, where there is none (see the image)

Permalink Reply by Rhydro on August 13, 2012 at 6:58am

I tried removing points with the Cull Duplicates component, but even with a tolerance greater than the radius of circles, there still are some problems. I don't really understand how is working this component. (I tried with "average", "cull all" and "leave one" options).