Dragline - Right Toe

Use the Dragline - Right Toe option to move a block by dumping it in a triangular spoil pile, with its right toe positioned where you digitise. The slope of the spoil pile is determined by the block's angle of repose, set with the Blocks > Edit Repose option. This option is most useful for simulating spoil piles created by draglines.

This option can also be accessed by selecting the Dragline - Right Toe button from the Dragline - Move Blocks toolbar.


Instructions

On the Dragline menu, point to Move Blocks, and then click Dragline - Right Toe.

Once selected, you will then be prompted to Consider rehandle or Ignore rehandle.

If a Dragline specifications file (.rsp) was not opened prior to selecting this option, then the Open Dragline Specification panel displays first.

Open Dragline Specification panel

Spec file name

Enter, or select from the drop-down list, the <spec_file_id> part of the dragline specifications file name. The maximum size is 6 alphanumeric characters. Selecting a name from the drop-down list will open an existing specifications file. Entering a new name will create a new specifications file.

Click OK.

Consider rehandle

Select this option to consider the operation as material movement. A polygon boolean operation will be performed on the old and new blocks, to determine how much of the old block gets moved, and the rehandled fraction of the new block will be set accordingly.

Ignore rehandle

Select this option to consider the operation as not moving any material. The rehandled fraction of the new block will be set to that of the old block.

If there are transient blocks waiting to be imported into the section (see the Export Block option), then you will be asked whether to select the current block or the imported block.

Select current block

Select this option to move a block that is currently visible on the section. You will then be prompted to select the block to move, from the current section. The selected block will be removed from the section, ready to spoiled.

Select imported block

Select this option to move a Transient block (that is, a block that is waiting to be imported to the section). You will then be prompted to select the block to move, from the list of Transient blocks, marked for import to the current section.

Once a block has been selected, you will be asked to allocate the equipment used to move it.

If the topography string undercuts itself, then an error message will be displayed and a temporary circle will be used to highlight the location of the undercut. The displayed circle will be coloured using the current highlight colour, which is specified through the Graphics : Colours section of the Tools > Preferences option.

If the ancillary database is empty, meaning no equipment has been specified, then the current dragline will be used, but only if it has been previously selected and its position set. If your ancillary database only contains a single item, then this piece of equipment will be automatically selected.

CURRENT DRAGLINE will only appear on the list if you are moving a current block and if there is a dragline currently set on the section (refer to the Set Position option). Refer to the Using Dragline Equipment section for more information how on to use dragline equipment.

You will then be prompted to digitise the right toe of the spoil pile (see diagram below). If a macro is being recorded, then you will need to snap onto a named position. Upon finding a solution, the new block is created on the section.

Figure 1: Dragline Right Toe

If you have chosen to use the Preview block moves before completion preference (which is specified under the Dragline section of the Preferences interface), then you will see a highlighted preview of a block's new location before accepting its final position.

If you have chosen to use the Prompt to move another block after completing a block move preference (which is specified under the Dragline section of the Preferences interface) then you will be prompted as to whether or not you want to repeat the chosen procedure on another block. If you are not using this preference, then you will be returned to the "Select menu option" prompt.