My drillhole collar positions do not match up with a DEM / DTM grid in the 3D view or drillhole cross-section.

1/. Were your collars only assigned an arbitrary height (e.g. 550m ASL) during regional exploration,
prior to an accurate elevation grid surface being provided (e.g. from a geophsical survey program).
Perhaps update the collar table (as used by your Discover Drillhole Project) RL/Z value field from the
appropriate accurate DEM / DTM grid surface using the Surfaces>Assign Values from Grid option?

2/. In the Discover 3D environment, has any kind of vertical exaggeration or offset been applied to either individual
data types (through the relevant Property dialogs in the Workspace Tree) or to the 3D view as a whole
(through the 3D Map branch of the Workspace Tree)? Try removing these.

Would you like to...

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Last Updated on: 9th of September, 2008