I am new to potree and GIS in general. I am using potree by way of WebODM and I am able to generate a pretty 3D map of the images I took from a drone. But I am having a hard time making sense of the measurements that I get out of the various tools in potree.
Here are a few examples with screenshots.
Let's say I want to measure the volume of top part this decorative bush.
I highlight the parts I want to measure like so:
But what do they mean? What unit is the volume measured in? What are those x,y,z and alpha, beta and Y values and rx,ry and rz?
Next up, the Height profile tool.
Let's say I want a height profile of the entire width of the map. I would select it like so
And then when I open up the 2d profile tab, I would get this:
Again, I am not sure of what those numbers mean. I am guessing the x,y,z are the coordinates from the 3d map and the colour is the RGB value of the point in the point cloud. But what about the rest of those values, and how do I get the height of a point from this?
- What unit is the volume measured in?
- How do I measure the height from the height profile?
- Is there an online instructions manual for potree that I can look this stuff up? There seems to be quite a bit more to potree and I would really like to get familiar with it.