Node Grid

<< Click to Display Table of Contents >>

Navigation:  Modules > Digital Terrain Modelling Module > Data > Data Types > Nodes >

Node Grid

To generate a grid of nodes within a defined boundary:

•Click Surface > Nodes > Generate Grid; or

•Click the Node Node Grid Button.

NodeGrid

•Enter Grid Parameters on the Node Grid Dialog.

NodeGridDialog

•Grid parameters comprise:

oGrid spacing: The node spacing in the x and y directions.

oGrid Seed: The coordinate for the first Node. All subsequent nodes are offset relative to Grid Seed.

oGrid Boundary: The boundary within which nodes are generated:

▪Surface: Nodes are generated within the boundary of a specified Surface.

▪String: Nodes are generated within the boundary of a specified String.  
A closed String needs to be defined for this option to be enabled.

▪Defined: Nodes are generated within a User defined boundary/area.

oNode Pattern: The pattern used to generate Nodes:

▪Rectangular pattern: Nodes are generated in a rectangular pattern.

▪Triangular pattern: Nodes are generated in triangular pattern.

oNode Elevations: The elevations assigned to the Nodes:

▪Surface: Node elevations are interpolated from a Surface.

▪Defined: Node elevations are set to the specified elevation.

oAdd Nodes To: The surface that the Nodes are added to:

▪New surface: A new surface is generated and the nodes added to it.

▪Active Surface: Nodes are added to the Active Surface.

▪Defined Surface: Nodes are added to a user specified surface.

•Click OK.