Simulations can only be computed when the furnace geometry is complete and materials were assigned to each region. CrysMAS will not allow you to leave Geometry Mode, if some points and lines have not been connected to regions.
You may change, however, from Materials Mode to Simulation Mode without having assigned materials to every region. But you have to return to Materials Mode and take care of the assignment. Otherwise you will not be able to start any computation.
Two items in the Settings menu are described in other sections, because they are closely related to Geometry respectively and Materials Mode:
Symmetry
The symmetry should be set immediately after the geometry was changed, because it has an impact on material properties, see Setting Symmetry.
Materials
The menu item Materials opens the Materials dialog for changing materials and their properties. For handling the Materials dialog see Materials Mode.
The remaining menu items of the Settings menu serve to determine the general setup for the simulation by defining:
Labels and Joiner
Unstructured mesh
Structured mesh
3D mesh
Physical Phenomena
Initial Values
Boundaries
Heaters
Control points
Moving Regions
Shaped Anisotropy
Species
All settings and parameters entered in the Settings menu dialogs will be saved together with geometry, materials and all computational parameters in the *.crys file.
Files saved in the Simulation Mode contain all data available for a furnace and should never be changed manually.
If you change a *.crys file, CrysMAS will not be able to run simulations from this file anymore.
Do not modify *.crys files manually.