GMS:Converting 3D Grids to Other Data Types: Difference between revisions
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=== MODFLOW Layers → 2D Scatter Points === | === MODFLOW Layers → 2D Scatter Points === | ||
[[File:MODFLOW Layers to Scatter Points.png|thumb|500 px|Example of the ''MODFLOW Layers → Scatter Points'' dialog]] | |||
The '''MODFLOW Layers → 2D Scatter Points''' command in the ''Grid'' menu of the 3D Grid module is used for regional to local model conversion. 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 dataset 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). The MODFLOW head data set is chosen in the following way: If a modflow head dataset is the active dataset then GMS uses that dataset for the starting heads. If the active dataset is in a modflow solution but is not a head dataset then GMS tries to use the head dataset in the active solution. If neither of the first 2 cases works then GMS just goes through the list of datasets and uses the last modflow head dataset that it finds (most likely the last solution that was read in). At a later point in time, these datasets can be interpolated from the scatter points to the cell centers of a smaller, local grid. | The '''MODFLOW Layers → 2D Scatter Points''' command in the ''Grid'' menu of the 3D Grid module is used for regional to local model conversion. 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 dataset 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). The MODFLOW head data set is chosen in the following way: If a modflow head dataset is the active dataset then GMS uses that dataset for the starting heads. If the active dataset is in a modflow solution but is not a head dataset then GMS tries to use the head dataset in the active solution. If neither of the first 2 cases works then GMS just goes through the list of datasets and uses the last modflow head dataset that it finds (most likely the last solution that was read in). At a later point in time, these datasets can be interpolated from the scatter points to the cell centers of a smaller, local grid. | ||