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3D Blocks into X,Y,Z coordingates

Anonymous

3D Blocks into X,Y,Z coordingates

Anonymous
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Hi Guys,

 

Someone has given me the file "voq_barrier_wall_lidar_210526_thn.dxf"

Photo01 shows the area I am interested it (The Red Square)

 

Z = Height

X = West to East

Y = North to South

 

I am hoping to get an excel file with all the X,Y,Z coordinates of the area I am interested in. I've tried a few methods (googling) with not much luck.

 

I am interested in seeing where the Z axis changes dramatically and then getting the corresponding Line (West to East) that shows that dramatic change.

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Pointdump
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Hi James,
Those are 3D Faces. You can extract the X,Y,Z of the Vertices by using Command DATAEXTRACTION. And you can use Command CreateQuickProfile to look for elevation changes.
Dave

 

QuickProfile_1.png

 

Dave Stoll
Las Vegas, Nevada

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ChicagoLooper
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@Pointdump is 100% correct. Regarding the dxf, those are not blocks, they're 3D faces. 

 

The drawing name has adopted the term LiDAR and suggests the sender 'watered-down' the points to 3D faces instead of keeping it in a point file format such as. xyz, las, etc. 

 

Your uploaded photo shows a dark green blob and believe it or not, that blob is DATA and data trumps the dxf. Do you have that blob and can you upload it? Unlike the 3D faces, the blob (grid file? DEM maybe?) is georeferenced so you're better off analyzing the data rather than the dxf. Given the the photo and the dxf file, which I believe was originally LiDAR, you don't have the 'proper' tools to analyze elevation. I know that's not what you want to hear, bit it is what it is.

 

If you're still compelled to use the dxf you can use a crude, 3rd-string type of work-a-round.

 

  1. Change the Visual Style to Realistic.
  2. Use the Viewcube and navigate to front, left, right and back view.
  3. You can even click an upper corner to get an isometric view.

Image-1.Image-1.

 

Image-2.Image-2.

 

Image-3.Image-3.

 

Be careful, the the dxf with the 3D faces is not using a 'known coordinate system' so the x, y and z values might be incorrect. Meters? Feet? Vertical datum? Compared to the elevation data, the road in the lower left of the  photo ties in nicely with the green blob. 

 

Image-4.Image-4.

Chicagolooper

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