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{{3D Grid links}} ...yers''' menu command. This dialog has two sections: one section to specify grid top and bottom elevation and another section to specify layer thickness.

{{3D Grid links}} ...le|3D grid]] rows, columns or layers can be changed via the ''Redistribute Grid Cells'' dialog. This dialog is accessed by selecting rows, columns or layer

{{3D Grid links}} ...provides two methods for creating 3D grids and multiple ways to edit a 3D grid.

...materials to a grid or mesh. The dialog is reached by right-clicking on a grid or mesh then selecting the '''Classify Material Zones''' command. ...the grid or mesh. The source of the materials can be solids or a different grid or mesh.

{{2D Grid links}} ...provides two methods for creating 2D grids and multiple ways to edit a 2D grid.

...s button brings up a spreadsheet with the multiplier for each layer in the grid. ''' Constant → Grid '''

|model_type= 3D Flow and Transport Model ===Grid Approach===

...of the IBOUND array (100, 200, 300, etc.) are assigned to the cells of the grid to define the zone codes. The zone code array can be edited by clicking on ...nu. In addition to the zone code, cell porosity can be edited in the ''3D Grid Cell Properties'' dialog.

{{3D Scatter Point links}} ...enu brings up the ''Create Finite Difference Grid'' dialog pre-filled with grid dimensions set at 10% beyond the bounds of the active scatter point set.

<!-- This applies to 2D and 3D grids {{Infobox 2D Grid Module}}--> ...roperties'' dialog will only allow editing of the material assigned to the grid cell.

...Any size model can be [[GMS:Importing_MODFLOW_Files|imported]], but if the grid exceeds 5000 cells or the number of stress periods is more than 3 the proje | [[GMS:3D Grid Module|3D Grid Module]] || Limited to one grid that cannot be saved if it exceeds 5000 cells.

...&rarr; 3D Grid''' command is selected, the grid will be created using the grid frame. == Grid Frame Properties ==

...g is opened by right-clicking on the "[[File:3D Grid Folder.svg|16 px]] 3D Grid Data" entry in the [[GMS:Project Explorer|Project Explorer]] and selecting [[Category:3D Grid]]

**MT3D menus and dialogs rename to reflect MT3D, RT3D, SEAM3D or PHT3D **Starting heads can be set to always match the grid top elevations for convenience

{{3D Mesh links}} ...macro. The following table describes the display options available for the 3D mesh module.

...d Icon.svg|16 px]] || align = "center" | [[GMS:2D Grid Display Options|2D Grid Data]] || ...Mesh Icon.svg|16 px]] || align = "center" | [[GMS:3D Mesh Display Options|3D Mesh Data]] || [[GMS:FEMWATER Display Options|FEMWATER]], [[GMS:FEMWATER P

* ''Grid line location'' &ndash; These options control which surfaces grid lines are placed on. ...dinate system or the grid coordinate system. The axes can be either 2D or 3D. The properties of the plot axes can be controlled through the ''Plot Axes'

...lay3DGrid.png|thumb|500 px|The ''Display Options'' dialog showing the ''3D Grid'' dialog.]] ...ro. The following table describes the display options available for the 3D Grid module.

[[File:material_set.png||thumb|right|175px|3D grid showing materials from a material set.]] ...ly created. Clicking on a material set causes the set to be applied to the grid cells (or mesh elements) and the material assignments of the cells updated.

...each [[GMS:Stress Periods|stress period]] for each vertical column in the grid (i.e., a NLAY X NCOL array of values is entered). The recharge value repres ...ctive, the 2D grid must have the same number of rows and columns as the 3D grid. The selected dataset is copied to the recharge array. Datasets are typical