SMS:Interpolate to Nautical Grid

This option creates a nautical chart. A nautical chart divides a scatter set into bins and finds the maximum, minimum, and average depth over each bin. The Interpolate to Nautical Grid menu item (Scatter module, Scatter menu) brings up the Grid Frame dialog. The user positions the purple grid frame and sets up the number of rows and columns in the grid. When the user pushes OK, a new scatter set is created with scatter points at the center of each grid cell. Three functions are created for each scatter point from the active scalar function of the original scatter set:

• Average – The average depth over each bin.
• Minimum – The minimum depth over each bin.
• Maximum – The maximum depth over each bin.

Requirements to Interpolate to a Nautical Grid

1. A scatter dataset must exist.
2. Active coverage type must allow grid frames to be created. The Cartesian Grid Module model coverage types allow the creation of grid frames.

Related Topics

• Grid Frame Dialog
• Scatter Menu
• Scatter Data Menu
• Scatter Triangles Menu