Irricad

v11 of Irricad will be able to generate contours from spot heights, and will have much improve handling for elevation calculations.

This is a quote from an earlier posted question & response as to importing elevation information. I have v.11 and would like to know how to make this conversion from spot heights to contours.

Hi,

New features are always explained in the Release Notes. These can be accessed from the Help menu.
To create contours from spot heights use the Calculate Contours tool from the Tool menu.
The Release Notes will give further information about the use of the tool.