Edit Drillole

Edit Drillhole is a dialog based editor for viewing and editing drillhole data one hole at a time. The Edit Drillhole dialog lists the strata/bed layers, drillhole header information, and a graphical representation of the drillhole itself. The main dialog is shown below.

Edit Strata

Each strata layer in the hole is listed as a separate row in the main table. These strata layers, along with the graphical representation of the hole, are color-coded according to the current strata definition file (from Drillhole Pulldown Menu > Define Strata) by default, but may also be colored according to a grade parameters file (from Block Model Pulldown Menu > Define Grade Parameters) by clicking the Color Strata By pulldown menu. When the Color Strata By option is set to 'Grade', you will be prompted for a Grade Parameters File, after which the strata layers will be colored according to the grade set in that file. An example is shown below, wherein the strata layers are colored according to their concentration of calcium oxide.

Selecting multiple strata in the list (by clicking and dragging in the list or by holding CTRL while clicking strata) will display a summary of the selected strata in blue text below the list, as shown in the above image.

To edit a strata, highlight the strata in the list, and then click the Edit button, or simply double-click the strata in the list. Edits may also be made by single-clicking a value and typing in the new value. Note that when a strata or quality is manually edited, the Edited checkbox will be checked.

To insert new strata, highlight the strata below the desired location and click the Insert Above button.

To add a new strata to the end of the list click the Append to Bottom button.

Strata are removed by highlighting the strata and clicking the Remove button.

The Adjustment Method controls how strata will react to a change in thickness, elevation, or depth of another strata. If the Adjust Bottom Elevations option is selected, the thickness of all strata will be held constant as the change is applied. For example, if the thickness of the strata layer in row 1 is changed from 1 to 5, then the thicknesses of all strata below it will be held constant while the bottom elevation of each will decrease by 4. If the Adjust Next Thickness option is selected, elevations will be held constant while the thickness of the next strata is adjusted. For example, if the thickness of the strata layer in row 1 is changed from 1 to 5, then the thickness of the strata layer in row 2 will change from 9 to 5; no other strata layers will be affected.

When Strata are edited or added, the Edit Strata dialog appears as shown below. This dialog allows editing of information specific to the selected strata layer.

The left side of the Edit Strata dialog lists all strata in the hole. Selecting one of the strata from this list will allow you to edit that strata. The fields at the top of this dialog include the Strata Name, Bed Name, Strata Thickness, Bottom Elevation of the Strata, the Depth to the bottom elevation of the strata from the top of the hole, and the strata's key status (key or non-key). Each of these fields may be edited.

The Select buttons next to the Strata Name and Bed Name will allow you to assign the name by picking from a list of Strata/Beds listed in the Strata Definition File.

The table shown on this dialog lists all attributes specific to the selected strata. Attributes and their corresponding values may be entered/edited by simply clicking the field and typing.

The Return button will save any changes made to the strata and return to the main Edit Strata dialog.

The list of attributes may be sorted by clicking the Name or Value header at the top of the spreadsheet.

Drillhole Graphical Representation

The right side of the Edit Drillhole dialog shows a graphical representation of the drillhole. Each strata layer will be colored according to the option selected in the Color Strata By pulldown menu. Hovering the mouse cursor over any strata layer will display the depth to the bottom of that strata layer from the top of the hole.

The window showing the graphical representation of the drillhole allows for zooming and panning to more easily inspect strata layers. Panning is done by holding down the mouse wheel while moving the mouse. Zooming is done by scrolling the mouse wheel, or by using the Zoom In, Zoom Out, or Zoom Extents buttons.

Drillhole Header Information

The Drillhole Header information is listed in the bottom half of the Edit Drillhole dialog. This includes the drillhole description, name, northing coordinate, easting coordinate, processing status, surface elevation, drillhole type, X-Y quality, Z quality, density, and drillhole attribute fields.

Above the drillhole header information is the drillhole Source. If the drillhole information is stored in the drawing itself (as is most common), the source will be 'Current Drawing with EED (Extended Entity Data) Data'. If the drillhole information is stored in an external database, the database directory will be listed as the source. Any changes made to the drillhole will update the EED/database after clicking Save.

The Description is a simple description of the hole for notes, comments, etc.

The Processing ON checkbox determines if the hole is used when making Strata Grid Files. If this box is unchecked, the drillhole information will not be used to make Strata Grid Files.

The Northing and Easting list the Y and X coordinates of the drillhole, respectively.

The Surface Elevation lists the elevation at the top of the hole. The Set button next to this field will set the hole elevation according to a .grd or .tin surface file.

The Drillhole Type will change the appearance of the hole according to the settings in the Drillhole Lookup Database command. These settings determine the drillhole, layer, symbol, color, etc.

The X-Y Quality and Z Quality are simple notes that tell how the drillhole X-Y coordinates and surface elevation were measured, respectively. Default options include Unknown, Total Station, GPS, USGS Quad, Picked off Map, and Tape Measured. Additional options may be added via the Drillhole Lookup Database command.

The Density sets the default density for strata in either lbs/ft^3 or kg/m^3 depending on the unit system selected under Settings Pulldown Menu > Drawing Setup. Note that density may be applied to individual strata/beds as user-defined attribute.

The Attribute Fields section lists attributes that apply to the drillhole itself rather than to specific strata, such as date drilled, driller's name, etc. Clicking the Edit Attributes button will open a new dialog, as shown below.

This dialog allows you to type in custom attributes that apply to the entire drillhole. Rows may be inserted or deleted with the Insert and Delete buttons. The Update from Drillhole Definition button will add any attributes listed in the drillhole definition file (from Drillhole Pulldown Menu > Define Drillhole).

Four optional, special attributes are also available, and may be set by clicking the Special Codes button. These attributes are:

Drillhole DIP/AZI Table

Drillhole Dip and Azimuth is controlled by a hierarchy of options, listed below. If Option 1 is detected, the other two will be ignored. If Option 1 is not detected, then Option 2 will be used. If Option 2 is not detected, then Option 3 will be used. If non of these options are detected, the program will assume a vertical drillhole.

Select Drillhole to edit [<Pick>/Name]: pick a hole or type "N" and then type in a name. A double-click with the cross-hairs on a drillhole will also execute this command, but only on the edge of the symbol, not the center where the grip is.