Desurvey Settings

To access this dialog:

In the Project Settings dialog, select the Desurvey Settings tab.

This screen, part of the Project Settings dialog, is used to control how drillhole table data (dynamic drillholes) is interpreted when desurveying to create static drillholes. The settings applied here will not have any effect on existing static drillhole tables. For more information on the types of drillhole data represented in your application, see Desurvey Methods.

The Desurvey Settings screen contains the following fields:

Field Details:

Straight Line Segments: selecting this option will cause the desurveying method to utilize a 'straight-line' method, meaning the hole direction at each survey point is projected to the depth of the next survey point.

Radius of Curvature: between any two orientations, for a given (and known) sample length, there is exactly one spherical arc between them. The spherical arc is tangential to the orientation at each survey point and curvature along the entire hole is guaranteed to be continuous, with no sharp angles as in the straight-line method. Enabling this option causes the 'Radius of Curvature' method to be performed during the desurvey process.

Desurvey Control: choose from the following options:

Include direction from collars table...: collars table contains Collar surveys (Azimuth and Inclination values at a depth of 0) which are i) not included in the surveys table, or ii) when there is no survey table available. Selecting this option will include the collar survey data to determine the drillhole orientation.
Subdivide samples to smooth trace: using this option, survey table data will be decimated in order to produce a string with more segments, and subsequently a 'smoother' end result.
Drillhole trace to honour sample centers...: if this option is selected, Studio 3 will attempt to align the center of sample data with on-screen drillhole data. These sample centers will be calculated using DESURV or HOLES3D processes.

	Related Topics
	The Project Settings dialog