How to create a Master Grid or Master Voxel

Environment

• Oasis montaj version 7.2

Master Grid

The Master Grid utility lets you create a uniform grid of any size and coordinate system for Grid and Voxel Math operations. A Master Grid may also be used in GMSYS-3D for creating the Index Grid that defines the model.

To create a Master Grid:

1. Grid and Image menu > Utilities > Create Master Grid.
   
2. Enter a new grid name > enter values for grid points in X and Y > specify a Constant grid value > OK.
   
3. By default, the X and Y grid point separation will be 1. You can change this value if you want a finer or coarser grid.
   
4. Set the grid origin by entering values for X, Y location of bottom left point.
   
5. To define a coordinate system for the grid, click CoordSYS > specify the projection to use > OK > OK.

Master Voxel

The Master Voxel utility allows you to create a uniform voxel of any size, orientation, and coordinate system. A Master Voxel can define the dimensions of the resulting voxel when resampling and completing voxel math operations.

To create a Master Voxel:

1. 3D menu > Voxel Utilities > Create Master Voxel.
   
2. Enter a new voxel name > specify the number of cells in X, Y and Z > enter a Constant voxel value > OK.
   
3. By default, the X, Y,Z voxel cell size will be 1. You can change these values independently of each other.
   
4. Choose a Reference Point and enter X, Y, Z values to set the voxel origin.
   
5. To define a coordinate system for the voxel, click CoordSYS > specify the projection to use > OK > OK.

Example Master Voxel and Master Grids.