filter-drillholes
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Command Name |
Menu |
Quick Key |
Link to Command Table |
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filter-drillholes |
Command line only |
fdh |
Description
Filter all visible drillholes overlays.
How to use
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Run the command.
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In the Expression Builder dialog, define and check the filter Expression.
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Click OK.
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This command makes it possible to display and work with different drillhole samples using a filter expression. The filter is used whenever the drillholes samples are used. Existing filters can be removed by selecting this command but not specifying any filters. Then use the redraw-display command to display all the data. A drillhole file must be open before filters may be applied. For more information on filtering data, click here. |
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The field 'FILENAME' is created automatically for drillholes by the system when reading drillhole files. This is a particularly useful field when filtering. All new or modified drillhole records will have FILENAME set to ' ' (blank spaces). Note that FILENAME is up to 24 characters long and is stored using the DATAMINE file convention, i.e. UPPERCASE with an optional dot to delimit any suffix. |
Complex Filter Expressions and Scripting
You can emulate the
effect of multiple-line filter expressions in scripts by joining expression
parameters with "AND". For example, the following scripted
command
Dm.parseCommand(“filter-drillholes ‘AU > 0.5 AND’ ‘M4DDESC =2’ ‘’);
Represents the following expression filter:
AU > 0.5 AND
M4DDESC = 2
Note the third parameter (empty single quotes). This is used to indicate
that no further expressions are specified.
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Related Topics |
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filter-strings |
