Draw Block Model

This command draws a block model in the CAD drawing. Once in the CAD drawing, the blocks can be viewed with the 3D Viewer Window or by orbiting the drawing itself. When the command is executed, you will be prompted to select a .blk file and a grade parameter file (.gpf file - controls coloring of the blocks). After selecting these files, the below dialog will appear.

Spreadsheet: In the spreadsheet you can customize the properties of the grades including the layer name, color and whether to draw.

Use Top/Bottom Surface Limit Grid:
These toggles allow you select constraining elevation grids. Any blocks with a centroid above/below these elevation grids will not be drawn.

Use Inclusion Perimeter Polyline: When enabled, you will be prompted to select an inclusion polyline. Any blocks with a centroid outside this polyline will not be drawn.

Use Solid for Inclusion: When enabled, you will be prompted to select a solid (.mdl file). Only blocks with centroids inside of this solid will be drawn.

Draw as 3D Faces: When enabled, all six sides of the blocks will be drawn as 3D faces. When this option is disabled, the blocks will be drawn as points. Drawing the blocks as points will reduce the demand on your computer's hardware, thus allowing for quicker camera movements.

Auto Set Layers: This function sets the layer name by the grade names with a specified prefix and suffix.

After clicking OK, the block model will be drawn in CAD, as shown below.


Even though the blocks may be drawn as points, these points will be rendered as full blocks if loaded into the 3D Viewer Window. When the blocks are drawn as 3D faces, you may wish to modify the SHADEMODE variable to toggle between a wireframe view and a shaded view.

Keyboard Command: drawblkm

Pull-down Menu Location: Block Model
Prerequisite:
Need a *.BLK file and a *.GPF file from Make Block Model, Block Model Editor and Define Grade Parameters.

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