kirra-docs

Editing Holes

Once holes are on the canvas — whether manually placed, imported from a file, or generated as a pattern — you can select, move, modify, and delete them individually or in bulk.

Data Explorer selection showing selected holes Selecting entities in the Data Explorer highlights them on the canvas.

Selecting Holes

Single Selection

Multi-Selection

Method How
Shift+Click Add individual holes to the current selection one at a time
Box select Click and drag a rectangle on the canvas — all holes inside are selected
Ctrl+Click Toggle individual holes in or out of the current selection
Ctrl+A Select every hole in the project
Select Row Right-click a hole and choose Select Row to select all holes sharing the same row

TreeView Selection

The TreeView panel on the left shows all entities (patterns) and their holes in a tree structure.

Tip: Use the TreeView to quickly find and select holes by name, especially in large patterns with many overlapping holes.

Viewing Hole Properties

Right-click a hole to access its properties and context menu:

Hole properties context menu Right-click a hole to view and edit properties, charge details, timing, and more.

Moving Holes

Drag to Move

  1. Select one or more holes
  2. Click and hold on a selected hole, then drag it to a new position
  3. Release to drop at the new location
  4. All coordinates (collar, toe, grade) update automatically

Tip: Hold Shift while dragging to constrain movement to horizontal or vertical only.

Dropping on another hole: if a moved hole lands on top of another hole in the same blast, Kirra shows a coincidence warning on drop and lets you Keep the move or Revert (snap the moved hole(s) back to where they started). See Hole coincidence below.

Move by Offset

  1. Select the holes you want to move
  2. Right-click and choose Move by Offset (or press M)
  3. Enter delta Easting (dE) and delta Northing (dN) values
  4. Click Apply — holes shift by exactly that amount

Enter Coordinates Directly

  1. Select a single hole
  2. In the right panel, edit the Easting and Northing fields directly
  3. Press Enter or Tab — the hole jumps to the new position

Modifying Hole Properties

Individual Hole

  1. Select the hole
  2. Edit any field in the right panel: ID, Depth, Diameter, Bearing, Angle, Subdrill, Elevation, Hole Type, or other attributes
  3. Changes apply immediately
  4. Dependent values (hole length, grade position, etc.) are recalculated automatically

Alternatively, right-click the hole and choose Properties to open the full Hole Properties dialog.

Bulk Edit

  1. Select two or more holes
  2. The right panel shows a bulk-edit form
  3. Fields that differ across the selection show (mixed) — type a new value to apply it to all selected holes
  4. Fields left blank remain unchanged
  5. Press Enter or click Apply

Common bulk-edit operations:

Deleting Holes

  1. Select the holes to remove
  2. Press Delete or Backspace (or right-click and choose Delete)
  3. Undo with Ctrl+Z if needed

Rotating a Selection

  1. Select the holes to rotate
  2. Right-click and choose Rotate Selection [VERIFY: exact context-menu label]
  3. Enter the rotation angle in degrees (positive = clockwise)
  4. Choose the pivot point: centroid of the selection, or click a custom point on the canvas
  5. Click Apply

Note: Rotation adjusts the X and Y coordinates of each hole. Z elevations and hole orientations (angle, bearing) are preserved.

Mirroring a Selection

  1. Select the holes to mirror
  2. Right-click and choose Mirror Selection [VERIFY: exact context-menu label]
  3. Choose axis: Horizontal (flip North/South) or Vertical (flip East/West)
  4. Click Apply

Scaling a Selection

  1. Select all holes in the pattern
  2. Open the Scale dialog [VERIFY: exact tool location — likely the right-click context menu or a future Modify toolbar entry]
  3. Enter scale factors for X and Y
  4. Click Apply

This is useful for adjusting burden and spacing across an entire pattern.

Renumbering Holes

  1. Select the holes to renumber (or press Ctrl+A for all) [VERIFY: Ctrl+A select-all]
  2. Click Renumber Holes on the Holes toolbar
  3. Set the prefix, start number, and sort order (by row, by easting, by northing, or by current number) [VERIFY: exact sort options]
  4. Click Apply — Hole IDs update throughout the project, including any timing and charge references

Automatic Pattern Analysis

Kirra uses HDBScan clustering to automatically determine pattern structure for your holes:

Calculated Property Description
Row ID Which row each hole belongs to
Position ID Position within the row
Burden Distance to the next row
Spacing Distance to the next hole in the same row

These values are calculated automatically and can be viewed in the right panel or exported with your data. They enable row-based operations, pattern statistics, and burden/spacing analysis.

Undo / Redo

All editing operations support undo and redo:

Hole coincidence

Two holes in the same blast must never share an XY position — a duplicate on top of another causes double-charging, breaks the timing network, and corrupts volume/powder-factor calculations. Every tool that creates or moves a hole checks for this and warns you before it happens:

Coincidence is only flagged within a blast (same entity). Holes from different blasts may overlap in plan view by design — they sit on different benches at different elevations. To find coincident holes across blasts, use the Coincident Hole Detector.