There are often ambiguities in such a point set, since there is no information about the relationship between the points, also known as connectivity.
Once imported, a point is assigned an index according to the line number in the file for its coordinates. Values and indices can be separated by space, comma, semicolon, or tab characters. In this format, you can use an optional % (percent) character to indicate a comment line. In the software, it is called the Spreadsheet format. This is one of the simplest types of coordinate formats that COMSOL Multiphysics can import. The screenshot below of a text file in Notepad shows the beginning of a point cloud data file with x-, y-, and z-coordinates organized in tab-separated columns. The points typically originate from the surface of a physical object that has been scanned using a laser, metrology tools, radar, etc. In this blog post, we will show how point cloud data can be converted to geometry models that can be used for simulation in the COMSOL Multiphysics® software.Ī point cloud is a set of points in 3D given by x-, y-, and z-coordinates. Sometimes the only data you have available is a set of points, also known as a point cloud.
Not all analysis projects start with a CAD model.
