Clip a voxel

[DanielMurillo]

Hello, Is there a way to clip a voxel layer (or clip any of the previous layers that generates it, to get a final clipped voxel layer)?

@Anonymous User 

[Andrew--Johnson]

Hi Daniel,

You can create slices to create an area of interest of the portion of the voxel layer that you are interested in.

https://pro.arcgis.com/en/pro-app/latest/help/mapping/layer-properties/voxel-layer-slices.htm 

https://learn.arcgis.com/en/projects/explore-and-animate-geological-data-with-voxels/#analyze-and-an...

thanks,

Andrew

[ttgrdias]

@Andrew--Johnson

I created a GA layer with EBK3D and also the minimum bounding volume (MBV) of the samples used in the interpolation. I'm trying to create a VoxelLayer clipped by the MBV:

- I built a generic 3d fishnet (point grid);

- I clipped the fishnet according to the samples MBV;

- And I used this clipped fishnet to export the prediction values of EBK3D at the fishnet points locations (GA Layer To Points);

But when I try to convert this points to NetCDF (to open it as a voxel layer) I get an error.

If I try to export the the prediction values of EBK3D directly to NetCDF (GA Layer 3D To NetCDF), using the clipped fishnet as custom export locations, the NetCDF file is created but when I try to open it says it has errors.

Do you know how to solve this?

[Andrew--Johnson]

Hi,

Can you post what errors you are seeing?

thanks,

Andrew

[ttgrdias]

@Andrew--Johnson 
Thanks for the reply.

I exported the "GA Layer 3D To NetCDF" with the configuration in the picture (Error_1a.png). When I "Add Voxel Layer" I get the error in the picture (Error_1b.png).

I exported the "GA Layer 3D To Points" without problems (Error_2a.png). When I try to convert "Feature to NetCDF" (Error_2b.png) I get the error in the picture (Error_2c.png).

The fishnet that I'm using has the following resolution (250 m horizontal, 5 m vertical). Does the vertical resolution needs to be the same has the horizontal?

Thanks,

[Andrew--Johnson]

Based on the warnings in the screenshots it looks like this NetCDF is not a true volumetric dataset. Also the elevation spacing does not have to be the same as the XY spacing. I'd recommend taking a look at the resource below. It provides a variety of workflows for creating volumetric netCDF data from point data. There's also links to learn lessons that provide detailed steps on how to setup the tool parameters to ensure the output is a volumetric netCDF.

https://pro.arcgis.com/en/pro-app/latest/help/mapping/layer-properties/create-a-voxel-layer.htm 

thanks,

Andrew

[ttgrdias]

@Andrew--Johnson 

Thanks for the reply. The workflows don't exactly match what I am trying to do.

When I create the NetCDF from the GA Layer using "3d gridded points" (instead of "custom 3d points") it works fine.

So, I'm wondering if the "custom 3d points" need to be a cubic fishnet? I've attached a picture of my custom 3d points and the minimum bounding volume.

Another option would be to clip/mask the resulting NetCDF using the "3d gridded points" method with the minimum bounding volume? Is it possible?

Thanks,

[Andrew--Johnson]

Hi,

Yes the voxel layer only supports regularly gridded data so you'll need to use the 3D gridded setting since the input data wasn't gridded.

https://pro.arcgis.com/en/pro-app/latest/help/mapping/layer-properties/voxel-layer-freqently-asked-q... 

There's no tool to clip a NetCDF file so you would either have to clip the points themselves before you perform the interpolation and export to NetCDF or use the slice tools available on the Voxel Layer.

https://pro.arcgis.com/en/pro-app/latest/help/mapping/layer-properties/voxel-layer-slices.htm

thanks,

Andrew