We derive a plane from the environment of the material depot, from which the volume of the depot is calculated. In the point cloud, we first cut the material depot together with its surroundings and then break it down into further parts. In this chapter, we use CloudCompare to determine the volume of a depot based on a simple plane and data from a point cloud above the plane. EXAMINING A POINT CLOUD WITH A SIMPLE PLANE For analysis, the model was also transformed into a point cloud and a raster.
#STOCKPILE VOLUME FORMULA LICENSE#
The model is under the license of Creative Commons, therefore, it can be used for free. As a test, it is worth taking a measurement with a regular geometry – one that you know the exact volume of – and testing the methods on this.įor the presented methods I used Mark Hamilton’s model which is available on Sketchfab. However, I would like to point out in advance that there are several complex cases, so don’t just blindly click through the session I’m presenting to you, but always consider whether or not you got realistic data back.
The purpose of this article is to explain the basics of soil mass calculation in such detail that what is described here can be applied in a simpler project. For analyzing point clouds I used CloudCompare, while for analyzing DEM files I used the 3.22.1 version of QGIS.
#STOCKPILE VOLUME FORMULA SOFTWARE#
To present the calculation I used open-source software which you can download and install. I have given examples for each of the four cases, which I will describe as a guide, so you can try them out. In addition, the differences between the models recorded at different times can also be calculated based on point clouds and DEMs. It is possible to measure the volume of material depots on a point cloud or a DEM based on a single survey with respect to a fictitious plane (assumed ground level).
Furthermore, the way we perform the calculation is also an essential question. One of the most common cases of this calculation is when we want to determine the volume of a material depot based on purely geometric data.Ī key question in the calculation is the resolution of our models, as the more accurate they are, the better results we can get. There are many cases in different economic areas, when we face the challenge to calculate volume from point clouds or digital elevation models (DEM).
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