3D Grid data can be converted to other types of data in GMS such as 2D grids, 2D scatter points, 3D Meshes, or 3D scatter points. 3D Grid data is converted using the following commands in the Grid menu:
The Grid -> Scatter Points command in the Grid menu in the 3D Grid Module is used to create a new scatter point set using the nodes or cells of a 3D grid. A copy is made of each of the data sets associated with the grid and the data sets are associated with the new scatter point set.
A new 3D finite element mesh can be created from a 3D grid by selecting the Grid -> Mesh command from the Grid menu in the 3D Grid menu. An eight node quadrilateral element is created from each cell in the grid.
A new 2D grid can be created from a 3D grid by selecting the Grid -> 2D Grid command from the Grid menu in the 3D Grid module. This creates a 2D grid which matches the 3D grid, i.e., one cell is created in the 2D grid for each vertical (ij) column in the 3D grid. This command is typically used in conjunction with the 3D Data -> 2D Data command.
MODFLOW Layers -> 2D Scatter Points
The MODFLOW Layers -> 2D Scatter Points command in the Grid menu of the 3D Grid module is used for regional to local model conversion INSERT LINK. It is only available if the true layer mode is being used with a MODFLOW model. When this command is selected, a new 2D scatter point set is created and a scatter point is created at the centroid of each vertical column of cells in the 3D grid. A data set is then created on the scatter point set for the top and bottom elevations of each layer and for the computed head values (if a MODFLOW solution is in memory). At a later point in time, these data sets can be interpolated from the scatter points to the cell centers of a smaller, local grid.
Also, a portion of a 3D grid data set can be converted to a 2D grid data set using the 3D Data -> 2D Data command in the Data menu of the 3D grid module.
Related Links:
3D Grid Module