Drillhole Text Formatter

This routine allows for flexible labeling of any data contained in the drillholes- also known as "posting drillholes." After selecting which drillholes to label, the program prompts whether to process beds. If beds are processed, the strata will be composited by bed name into groups such as bed_top, bed_key, bed_parting, and bed_bottom for labeling. If beds are not processed, only the strata names will be used for labeling.

The Drillhole Text Format Options dialog, shown below, allows you to select the information to label. The full list of available information is show on the left of the dialog, while the "Used" column on the right lists the information that will be labeled. The leftmost column lists the Drillhole, the Strata/Beds, and the Equations (if applicable). Selecting one of these groups will show the specific attributes that can be labeled in the middle column. These attributes can be added to the "Used Column" by double-clicking the attribute, or by highlighting the attribute and clicking the green right-arrow between the "Available" and "Used" columns.

• Text Offset: Sets the distance from the center of the drillhole to the text. To avoid overlapping the text with the drillhole symbol, it is recommended to set this value greater than or equal to the radius of the drillhole symbol.
  
• Label thickness for missing strata as Zero: This option will label missing strata with a thickness of zero. This option will also affect Equations in that null values will be treated as zeros. For example, if an Equation adds the thickness of Strata A and B, but a drillhole does not contain Strata B, the Equation will simply report the thickness of Strata A. When this option is disabled, Equations will not be evaluated when a strata is missing.
• Prefix layers with drillhole type name: This option prefixes the label layers with the drillhole type name. For example, if the Drillhole is tagged as Rotary hole and the labels are set to draw on layer "Label", this option would draw the labels on the layer "Rotary-Label".
  
• Skip empty rows: When no labels are drawn on a row, this option will slide the other labels up or down to fill in the missing row.
  
• Overlap labels with same row: This option will allow text labels to overlap if they are set to draw on the same row.
• Draw as MTEXT: Selecting this will group the text as MText (multiline text), otherwise it is separate standard text for each text item.
• Color By Grade Parameter File: This option prompts for a Grade Parameter File to set the color of the labels based on the grade of each strata.
  
• Draw text at elevation: This will draw the labels at the same elevation as the drillhole collar.

When an attribute is added to the "Used" column, the below dialog will appear to control the settings of that attribute label. This dialog can also be accessed by double-clicking an attribute in the "Used" column or by highlighting an attribute and clicking the pen icon between the "Available" and "Used" Columns.

• Layer: Sets the layer for each label
  
• Style: Sets the text style
  
• Color: Sets the text color
  
• Label Header: This header text will be inserted on the row above the label. When drawing multiple labels for a strata type, this head can be used to group the labels together, as shown in the below image. In this example, the first Thickness label has been assigned a label header called "Overburden" while the second thickness label has been assigned a label header called "Coal 1". It is important to note that the Elevations labels should not be assigned label headers.
  

• Label Prefix: Sets a prefix to the text. In the above image, the prefixes of "Bottom Elev: " and "Thick (ft)" have been assigned
  
• Label Suffix: Add a suffix to the text
  
• Text Size: Sets the size of text
• Decimals: Sets the number of decimals to display in the value
  
• Angle: Sets the rotation angle of the text
  
• Row Position: Sets the row position for the text. Row 1 will be closest to the drillhole symbol, Row 2 will be further away from the symbol, etc. The rows are counted either up or down from the symbol based on the Label Position.
  
• Label Position: Determines if the text is drawn above or below the drillhole symbol
  
• Label Alignment: This option aligns the text with the center of the drillhole symbol, or off to the side of the drillhole.
  

Prompts

Select the Drillholes to label.
Select objects: pick the drillholes
Process beds [<Yes>/No]? Press Enter for yes.
Drillhole Text Format Options dialog

Drop-Down Menu Location: Drillhole
Keyboard Command: chtext2