Today’s post is on how to use the GEOVIA Surpac Deviation Analysis tool for surfaces heat map generation. It is often important for open pit mines to reconcile the as-built surfaces with the design surfaces in order to determine the extent of deviation between the two surfaces.
The Surpac Mesh Tools Deviation Analysis tool allows the users to generate reconciliation heat maps to see the compliance of the as-built surfaces against plan. The data requirements are as follows:
- A design surface
- A design surface
- An as-built surface
The two surfaces below (blue: design and brown: actual).
The deviation analysis can be accessed from Surfaces > Mesh Tools > Deviation Analysis function.
The base case (as-built) is selected first and then the design surface is selected to open up the Deviation Analysis dialog box.
In this setup, you have to specify the tolerance limit (minimum and maximum deviation values to report) as well as the rendering colors. For this illustration, I have used 0.001 and 10 min and max values respectively.
The deviation values can also be saved in the Surpac String data Description/D field.
The resulting heat map is as follows (with the legend showing varying degrees of variation):
Upgrading to GEOVIA Surpac 6.8 includes the Mesh Tools functionality without needing to acquire an additional module.
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