My las does not have the display range of 1 & 2 when setting the scalar fields to Classification. It only has a 1??? When I imported I had classification checked what is happening?
As far as I know is that the default properties of the software presents the point clouds on the X-Y-plane. Furthermore, by importing data the software recommends you to shift the global coordinate system to a local coordinate system, because the global system often has very large numbers. You can actually set the scale to zero by using: 1) CSF filter to separate ground and off-ground (those are point cloud which are above the ground) 2) Mesh the ground points 3) calculate the distance between the meshed ground and off-ground points 4) to set the ground to zero you have to move the left round handle in the diagram shown like in 7:10 to zero 5) on the menu bar on the top there is an icon for "Filter points by value", then you can extract your new point cloud with 0 as the beginning value
My las does not have the display range of 1 & 2 when setting the scalar fields to Classification. It only has a 1??? When I imported I had classification checked what is happening?
Thanks ! very thorough and professional tutorial. :)
Thanks for the tutorial. It's very good. Ary from Brasil
Thanks so much for tutorial.
james do you have any sample las files . i need to learn cloud compare .
Lots of sample datasets are available from OpenTopography - portal.opentopography.org/datasets
How does the software recognise if the point is on the ground or no? It's a little bit magic.
As far as I know is that the default properties of the software presents the point clouds on the X-Y-plane. Furthermore, by importing data the software recommends you to shift the global coordinate system to a local coordinate system, because the global system often has very large numbers. You can actually set the scale to zero by using:
1) CSF filter to separate ground and off-ground (those are point cloud which are above the ground)
2) Mesh the ground points
3) calculate the distance between the meshed ground and off-ground points
4) to set the ground to zero you have to move the left round handle in the diagram shown like in 7:10 to zero
5) on the menu bar on the top there is an icon for "Filter points by value", then you can extract your new point cloud with 0 as the beginning value
Thank you for nice tutorials! :)
Thanks for the tutorial
great !