Spatial_grid
Contents
Data Structure: Spatial_grid |
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Description |
Spatial variation grid |
Usage |
Spatial_grid NUM=ival where ival is the data structure number |
Description |
Overview The Spatial_grid data structure defines a spatial distribution of variables on 2D and 3D structured and unstructured grids for definition of spatial variations. The data structure is the control data structure with additional data being specified on: •Spatial_grid_group - the topology and variable values for a specific group
Notes Spatial_grid data can be assigned to the model using: •Spatial_state_set which defines the assignment of spatial variations to element and state variables •Geostatic initialisation procedures. In this case initialisation of state variables specified on the spatial grid that are relevant to geostatic initialisation (e.g. porosity) is performed prior to geostatic initialisation. •Spatial_boundary which defines the assignment of spatial variations to node or element boundary conditions
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 | Active_flag Flag to denote structure defined |
| Name Name of the spatial grid |
| File_name File name associated with spatial grid |
| Operation_type Type of the operation for grid, either read or write |
| Type Type of the spatial grid |
| Group_numbers List of ParaGeo groups by number with Spatial_grid_group data defined |
| Groups List of ParaGeo groups by name with Spatial_grid_group data defined |
| Spatial_groups List of spatial groups |
| Element_variables List of element or cell centre variables (Cell_variables) |
| Nodal_variables List of nodal or point variables (Point_variables) |
| Num_cells_x Number of cells or divisions in X direction (Num_division_x) |
| Num_cells_y Number of cells or divisions in Y direction (Num_division_y) |
| Num_cells_z Number of cells in Z direction |
| Cell_division_x Cell size in X direction |
| Cell_division_y Cell size in Y direction |
| Cell_division_z Cell size in Z direction |
| Grid_origin Coordinates of the origin of the grid |
| Cell_divisions_x List of cell sizes in X direction |
| Cell_divisions_y List of cell sizes in Y direction |
| Cell_divisions_z List of cell sizes in Z direction |
| Grid_coordinates Coordinates of each grid point |
| Cell_coordinates Coordinates of each cell centre |
| Cell_values Cell centre or Element values (Element_values) |
| Point_values Point or Nodal values (Nodal_values) defined at all grid points |
| Coordinate_system Coordinate system number |
| Depth_format Flag defining whether the grid lengths in the Z-direciton are defined in terms of depth or Z-Ord |
| Boundary_map_flag Flag defining whether points outside the boundary of a grid should be assigned values |
| Search_tolerance Search tolerance for mapping to points outside the grid |
| Minimum_x_index Minimum X-ordinate point index |
| Maximum_x_index Maximum X-ordinate point index |
| Minimum_y_index Minimum Y-ordinate point index |
| Maximum_y_index Maximum Y-ordinate point index |
| Minimum_z_index Minimum Z-ordinate point index |
| Maximum_z_index Maximum Z-ordinate point index |
| Plan_points List of Plan point coordinates |
| Element_numbers List of selected element numbers |
| Node_to_element_flag Flag for setting element values using a grid defined by nodes of the current mesh |
| Node_numbers List of nodal numbers of the grid |
| Time_variation_assignment List of spatial variation sets defining the time variation |
| Auto_delete_flag Defines whether the table should be kept after initialising data |
| Fracture_set Name of the fracture set to be used to assign the fracture state |
| Distribution_type Defines the type of distribution of values for cloud of points |
| Distribution_range_min Minimum range for distribution |
| Distribution_range_max Minimum range for distribution |
| Pathway_radius Pathway radius for joining points |
| Pathway_divisions Pathway number of divisions |
| Parallel_element_assign_flag Method for storing element assignment data for parallel analysis |
| Null_value Value identifying that the grid value is not set |
| Default_values Default values |