I’ve got a grid of 400-500 squares covering a project with a point approximately at the center of each square. I need to determine the lowest plan elevation inside each one of those squares and assign that elevation to the point within it. Anybody have any suggestions to accomplish that?
For anyone curious, the reason is for soil contamination sampling. We need to bore a soil sample in each of the regions and that boring needs to go down to the lowest elevation that will be excavated to for the project.
Make those points a surface, open a 3D view, view from any side, exaggerate the vertical to an absurd degree. The low point(s) should at least be easy to pick out.
As discussed on the phone Wayne - if you create a surface at Datum elevation 0 that surrounds the entire area of the surface in question, ten run volumes manager - use all of the boundary lines as boundaries (create one boundary and add all the boundary lines to that, don’t bother with a Group - use all boundaries), then run an Earthwork Calc between the two surfaces and using all the boundary lines. Each area will get its own Isopach. the isopach tells you the Min and Max Elevation - the n=Min is what you need.
I have asked Anh to add the creation of a 3D point at the centroid of each cell boundary and offer elevations from Initial or final or ispoach surface and then pick Highest, Lowest or Average and create the point using ID of the cell boundary name and Code = High, Low or Average.
Will see if she can get this done overnight.
I may need to run that for you till we release the command so send me the surface and the cell boundaries
Alan
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Soil Sample Locations.vcl (84.7 MB)
This v2024.00 vcl file contains the surface, polygons, and points. If the command creates its own points feel free to discard these.
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