On the Data Coordinates tab, you will tell RockWorks what coordinate system and units used in the import file for the drillhole locations; if they are different from the project units, RockWorks will translate them to the data coordinates you've defined for your project.
- Click the Imported Data Coordinate System drop-down list to choose the Coordinate system in which the imported drillhole locations are recorded. For your reference, the current project coordinates are shown to the right. This will be the system that should show as default.
If you do not know what the import coordinates represent, you should select the same units as your project coordinates, and they'll be imported with no changes. Later, should you need to relabel or reproject the data, you can do so.
- Horizontal Coordinate System Settings: Use these settings to detail your selected coordinate system.
- Local: The system origin should equal the project's system origin.
- Longitude/Latitude: no additional settings need to be made.
- State Plane: Choose the State Plane Zone. If your project is set up to State Plane, that zone will be used.
- UTM: Choose the UTM Datum and Zone. If you project is set up to UTM, that datum and zone will be used.
- Vertical Values Settings: Use these to define the units in which the depths and elevations are recorded in the text file you're importing. For your reference, the project's vertical units are shown to the right. If the imported data are recorded in different units, the program will automatically mutiply the depths and elevations by the value shown in the window.
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