This useful command will raise or lower the surface/collar
elevation of the selected drillholes either by a surface model file
or by an user entered differential. This is necessary when a series
of holes have been drilled and surveyed from a local base elevation
in the field. Once that bench mark elevation is determined, the
selected holes in the drawing can be translated to the appropriate
elevation. Older holes located before GPS surveys might not
have the correct surface elevation. This will "drape" them onto a
surface model file which can be a grid, TIN or FLT file.
Select the Drillholes to process.
Select objects: all (to
select the drillholes) 190 found
Set elevation by surface model or differential
[<Model>/Differential]?
M for Model or Enter if in <>
Reading cell> 251316
Hold strata thickness [<Yes>/No]? y Yes will keep the
same thickness of all strata, No will change the thickness of the
first strata in the drillhole.
Modified 180 drillholes.
Skipped 10 drillholes already at elevation
OR:
Select the Drillholes to process.
Select objects: pick the drillholes
Enter elevation change: 150. Use a positive value to
raise the elevation and a negative value to move down. This example
will raise the elevations by 150.
Hold strata thickness [<Yes>/No]? press Enter for
Yes If Yes, then the complete stratigraphic column will be
moved up or down, keeping the thickness of each the same. If No,
then the thickness of the first strata in the hole will be
affected; thicker with a positive value as the collar elevation is
raised, and thinner if negative.
Modified 15 drillholes.
Pulldown Menu Location: Drillhole
Keyboard Command: chelev