topic Re: Using a multipatch to select features in 3D Questions

Using a multipatch to select features

CPoynter — Wed, 29 Aug 2012 04:25:42 GMT

Hi,

I have made a multipatch feature representing a dome like feature. I have created a point dataset with random elevated points along a path that crosses through the dome. I need to only select those point features that exist within my domed area.

Which tools should I be utilising?

Regards,

Craig

Re: Using a multipatch to select features

EricRice — Wed, 29 Aug 2012 14:26:46 GMT

Hi Craig,

Have a look at the Inside 3D tool. This will give you a table telling you which points are inside the multipatch. Join it back to points and make selections accordingly.

Best,
Eric

Re: Using a multipatch to select features

CPoynter — Wed, 29 Aug 2012 21:16:29 GMT

Hi Eric,

Thanks for the reply. That tool should work a treat. Is it possible to also create random points using a multipatch as the limits to the area available (e.g. random points will only be created within the multipatch space)?

Regards,

Craig

Re: Using a multipatch to select features

EricRice — Thu, 30 Aug 2012 15:04:17 GMT

Craig,

You can't technically do it directly with the multipatch, but you can run the MultiPatch Footprint tool, then the Create Random Points tool using the footprints as the constraining feature class. The 3rd usage point in Create Random Points documentation indicates how to assign random values to randomly placed points, if you needed random Z's so you could later convert the points to 3d points.

Best,
Eric