This routine uses images taken of cores and links them to depths
in the holes for reporting and viewing in the drawing. The command
will read both JPG and BMP files. In the assignment dialog the
drillholes are listed on the left side. The highlighted hole shows
up as a column on the right. The intervals for each photo are added
to the middle section. Selecting the green + button adds a line in
the window. The From and To Elev must be set for each image
interval. For each line, use the Select button on the right to find
the image file for each interval. As each is entered, the core
image shows up on the right in the column for each interval. The
Diameter controls how wide the column appears on the
right.
Reports are generated of all the holes on the list with the
Report button. An example appears here. 
The Draw option will place the hole in CAD, and an example of that
is shown here. 
Prompts
Select drillholes to assign core images.Select objects: pick the drillholes
Drillhole Core Image Dialog
Drop-Down Menu Location: Drillhole, Drillhole
Utilities
Keyboard Command: dhimage