The graphical display of velocity vectors at millions of mesh nodes is not only slow but usually also too complex for viewing. The new HYDRUS GUI allows displaying velocity vectors either at mesh nodes or at raster points, while the raster parameters (density of points, etc.) are fully adjustable.
Rasters for Vector Fields. Vector fields can be displayed in mesh-independent rasters, i.e., regular 2D/3D grids with arbitrary density of points. Rasters can also be used with the Clipper and Slicer.
One can set the vector field options in the Vector Field Options dialog window:
Return to Options Menu.