kirra-docs

The Load Block Model Dialog

The Load Block Model dialog controls how a block model is drawn: which attribute colours it, whether you see points or solid blocks, and which part of the model is shown. Every change applies straight away, so you can adjust it while watching the view. Block models are drawn in the 3D view, and in plan in the 2D view.

The dialog opens when a model is imported. To open it again, click Adjust Block Model Loaded on the Analyse toolbar.

Display tab

Load Block Model — Display tab, coloured by DENSITY

Setting	What it does
Variable (colour)	The attribute that colours the blocks, for example DENSITY, FE or STRAT.
Mode	Centroids (points) draws a point at each block centre: fast for a first look. Blocks (solid) draws every block at its true size, sub-blocks included.
Block style	For Blocks (solid): Wire & Fill (solid with black outlines), Fill only, or Wire only (outlines in the block colour).
Gradient	The colour ramp for a numeric attribute: Turbo, Viridis, Parula, Cividis, Terrain or Spectrum (default).
Colour by	Gradient (above) uses the ramp. Schema (below) uses a saved colour schema — your site’s standard colours for each rock type or grade range.
Schema	The schema to colour by. Schemas are made in Adjust Block Model Schema Colour — see the Analyse toolbar.
Point size (px)	Point size in Centroids (points) mode.
Transparency	1 is opaque. Lower values let you see into the model.
Bench slice	Show only the blocks in one horizontal slice.
Bench RL / Bench thickness (m)	The centre elevation and thickness of the slice.
Hover datatip	When ticked, hovering over a block in the 3D view lists its attribute values.
Render cap (cells)	The most blocks drawn at once, to protect the graphics card. If the count is capped the note at the bottom says so — raise the cap or tighten the filters.

The note at the bottom of the dialog counts the blocks being drawn, for example Showing 206,369 of 206,369 cells.

Bench slices

A bench slice shows the geology at one reduced level. Set Bench RL to the bench elevation and Bench thickness (m) to the bench height.

A 4 m bench slice of the same model, coloured by DENSITY

Limits tab

Load Block Model — Limits tab

Limits hide blocks without changing the model. Clear a limit and the blocks come back.

Cut-offs and classes

Setting	What it does
Cut-off: ignore below / Cut-off: ignore above	For a numeric attribute, hide blocks below or above a value. Leave a box empty for no limit. The hint shows the attribute’s range.
Categories	For a category attribute such as STRAT, tick the categories to show.
Discrete intervals	For a whole-number attribute such as a stratigraphy code, tick the values to show. Select all ticks them all.

Limit display to

Option	Shows
None	The whole model.
Box range (min/max X Y Z)	Blocks inside the box set by Limit min X to Limit max Z.
Below a surface	Blocks below the surface chosen in Limit surface, for example below the topography.
Above a surface	Blocks above the chosen surface.
Inside a closed solid	Blocks inside a closed solid, for example a blast solid or a pit shell.

Limit surface lists the loaded surfaces. For Inside a closed solid it lists closed solids only; if none is loaded, Kirra says so and leaves the limit off. A solid made while the dialog is open appears in the list straight away. To make a blast solid, see Extrude KAD to Solid.

Button	What it does
Solids	Builds closed solids from the blocks currently shown — see Export a Section and Build Solids.
Export	Saves the blocks currently shown as a block model CSV — see Export a Section and Build Solids.
Remove	Removes the block model from Kirra and frees its memory.
Done	Closes the dialog. The model stays loaded, drawn as you left it.