GeoDict User Guide 2025

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Navigation: GeoDict 2025 - User Guide > Material Modeling > GrainGeo

Create Grains

When choosing Create Grains from the pull-down menu, granular structures can be generated, either in an empty domain or on already existing structures.

At the top left of the GrainGeo Create Options dialog, the name for the file containing the generation results can be entered in the Result File Name (*.gdr) box. The default name can be kept, or a new name can be chosen, fitting the current project.

The available units (m, mm, µm, nm and Voxel) are selectable from the pull-down menu at the top right of the GrainGeo Create Options dialog. When the units are changed, the entered values are adjusted automatically.

The parameters are organized into four tabs:
Create Options Determine general properties of the resulting structure, such as size, position, resolution, and solid volume fraction. Object Options Define the geometrical properties of individual object types such as cross-section, length, and orientation. Up to eight different object types can be used in one structure. Object Overlap Defines how the IDs of different materials and objects are assigned. This is relevant for overlap operations performed on the structure and to define different materials with respective properties in the structure. Result Options Determine if and how the resulting geometry is saved. Learn about the content of a FiberGeo result file.

The parameters are organized into four tabs:

Create Options
Determine general properties of the resulting structure, such as size, position, resolution, and solid volume fraction.
Object Options
Define the geometrical properties of individual object types such as cross-section, length, and orientation. Up to eight different object types can be used in one structure.
Object Overlap
Defines how the IDs of different materials and objects are assigned. This is relevant for overlap operations performed on the structure and to define different materials with respective properties in the structure.
Result Options
Determine if and how the resulting geometry is saved. Learn about the content of a FiberGeo result file.

The result files are saved in the chosen project folder (File → Choose Project Folder, in the Menu bar). If a GeoDict result file (*.gdr) with the given name already exists in the project folder, a warning message is shown at the start of the creation process. You can either decide to rename the chosen file name to a new one, to cancel the generation process, to overwrite or to back up the old file. When nothing is selected, GeoDict uses the Back-Up option after a waiting time.

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GeoDict User Guide 2025

Create Grains