Define Grade Parameters

This command creates the attribute file for the block model. It contains the attributes, grade names, prices and the ranges. The Name of the grade may appear on the list more than once, if several options exist to create a certain grade.

Choosing Add or Edit brings up the Edit Grade Parameters screen for up to 50 parameters at once to define a certain grade and color. There are six Operators: <, >, <=, >=, =, and Not =, combined with either and AND or OR for defining the grades. 

The grade Color is used by viewer commands like Block Model 3D Viewer. The grade Density is used for reporting tons in Surface Mine Reserves. The Geologic Column Scaler is used by Draw Geologic Column when drawing in 3D mode for sizing the strata column by the grade parameter which is a way to highlight target grades. The Pass Any Missing Strata Attributes means that if the strata is missing any attribute in the list, then the program will count that attribute as good even though it doesn't have a value. This option applies when a grade has some attributes to check for but only for when those attributes are available in the strata.
The Draw Legend button places a legend in the drawing as shown here where the grade name is displayed next to the color sample in the legend. The user chooses the legend layer and size. This is useful after color hatching a fence diagram. Drawing the legend next to the fence diagram is a good reference to see the quality of the ore.

Prompts

Pick location for legend: pick location on screen
Layer name for legend <LEGEND>: Enter to select
Size for legend <20.0>: Enter or change size

Keyboard Command: DEFATTRF
Pull-down Menu Location: Ore
Prerequisite: Need to run Make, or Input-Edit Block Model first to get the BLK file. Then define the quality/grade parameter values and their color scheme.