The “Import mesh” functionality can be utilized as a starting point for creating a new mesh or for converting mesh files into dfsu files.
When selecting to import a mesh file (or the mesh file information contained in a dfsu file) a pop-up window will ask if you want to generate information for Arc Editing.
Pressing NO to generate information for Arc Editing will cause the mesh to be added as follows:
· The existing mesh structure will be added and become subject to changes using the Mesh Editing Toolbar.
Pressing YES to generate information for Arc Editing will, besides including the existing mesh structure, enable additional mesh features to become available in the Mesh Generator setup the following way:
· The external boundaries (land and open boundaries) are imported as arcs with the given boundary code attribute becoming the corresponding arc attribute.
· Existing non-triangulated areas (e.g. islands) within the selected file are detected and corresponding polygons with property “Exclude from mesh” will be created.
· The selected file is added to the list of scatter data files and the bathymetry values from the scatter data will be shown in the display.
Note: Internal polygons that outlined areas for e.g. quadrangular mesh or local maximum element area during generation of the original mesh cannot be derived from the mesh. Hence the mesh structure may be modified if the mesh is regenerated.