Select Data for Implicit Modelling

Note: A Datamine eLearning course is available that covers functions described in this topic. Contact your local Datamine office for more details.

The following information relates to the vein-from-samples and surface-from-samples commands.

The Create Vein Surface task is a focussed tool for the calculation of hanging wall (HW) and/or footwall (FW) surfaces that represent vein or vein-like lodes. Similarly, the Create Contact Surface task is used to generate contact surfaces between groups of contiguous categorical values.

This topic considers how the vein-from-samples command interprets preselected data.

Data Selection and Pre-selection

A static drillhole data set must be loaded into memory to use this command.

If no drillholes are selected, all holes within the loaded data object are considered.

Alternatively, you can preselect the samples you wish to use. You can do this using Studio's existing selection methods (left-click, CTRL, bounding box) and this can be performed whilst the modelling task window is displayed.

Sample selection, if performed, accommodates both positive and negative samples: only selected data influences either the generation or retardation of the resulting surface/volume.

If drillholes are pre-selected, at least two individual samples must exist within the selected set. If only one is selected, you are informed that a different selection must be made.