Resample and Mosaic Grids

(Select multiple 2D or 3D grid files)

Use this operation to resample a single or multiple grid files producing a single new grid file. The input grid files may be of any size and have any node spacing. When multiple overlapping grids are sampled the value in the new grid can be calculated i different ways.

Grid Files: The input grid files that will be joined/mosaiced and resampled to one grid. Only when the sample method “Top” is selected the order is significant. Use the Up and Down buttons to organize the grid files.

Grid Extent (corner node coordinates)
Enter the extent of the resulting grid. This can be any extent although it should overlap at least one of the listed input grid files to be meaningful.
Grid Extent: For 2D Grids min/max X and Y coordinates must be specified. For 3D grids min/max Z coordinates must also be specified.
Adjust: Adjusts (rounds) grid extent to the selected node spacing and node count. Max = min + (node spacing * node count).
Scene Extent: Sets grid extent to the current scene extent. This option is available when the Toolbox has been launched from within GeoScene3D.
All Grids Bounding Box: Sets grid extent to the bounding box of all input grid files
Selected Grid: Sets grid extent to the selected input grid.

Node Spacing
Distance between grid nodes in X, Y, and Z directions. The node spacing is a function of the side length of the grid and the number of nodes (X node spacing = X side length / (X node count - 1)). Note: 2D grids must have equal node spacing in X and Y.

Node Count
Number of grid nodes in X, Y, and Z directions.

Grid Info
Information about width, height, depth, and number of nodes in the resulting grid.

Sample Method
When multiple grids are joined to a single grid the resulting grid node values can be calculated in different ways based on the values in the input grids.
Mean: A simple mean of all the grid values that are not blank
Sum: The sum of all grid values that are not blank
Min: The smallest of the grid values that are not blank
Max: The largest of the grid values that are not blank
Top: The upper most grid with a value that is not blank. Use this option to join grids where the grids higher in the grid list has higher priority than grids lower in the list.