Functionality
Functionality
General
The fragmentation analysis requires a scaled 3D model in “.jm3x” file format. The geometric information includes a 3D point cloud and the corresponding surface description (triangulated mesh). In addition, the 3D model provides visual information from images (real photographs) which are draped in the surface. Geometric analysis of the surface as well as image processing on the original pictures is used to determine the location, boundary and size of single particles. Results of fragmentation analysis are visualized by a user adjustable colour scheme in the viewer and in the Particle Size Distribution (PSD) plot.
Particle computation settings
The Fragmenter provides following particle computation modes, which has to be selected in the Settings pane (see Settings Pane topic):
- Blast: The mode is optimized for the analysis of uniformly distributed particles (fines to boulders). A typical use case is the analysis of blasted rocks.
- Riprap: The mode is optimized for the analysis of homogenously distributed particles (a certain grain fraction). A typical use case is analysis of embankment walls and ripraps.
File formats
The Fragmenter deals with two file formats:
- “.jm3x” file (3D model) which contains the geometric information (3D point cloud and triangulated surface mesh) and the corresponding visual information (real photographs) of the surface. The “.jm3x” file is generated by the MultiPhoto and cannot be modified by the Fragmenter.
- “.frag” file which contains the defined surface for fragmentation analysis (see Operations | Definition of the Surface topic) and the corresponding results. The “.frag” file is generated by the Fragmenter.