Strip Log

The Strip Log is a depth-based graphical log that renders next to the spreadsheet on the Drillhole Data page. You configure it once per drillhole, choosing which columns to visualise and how — interval fills coloured by lithology, bar tracks for grade, text labels for sample IDs, and so on.

Open the panel

On any drillhole, click the chart icon in the page header. The Strip Log panel slides in from the right. To close it, click the ✕ button on the panel.

The panel can be resized — drag the divider between the spreadsheet and the panel to give either side more space.

Panel header controls

Configure tracks

Click the gear icon to open Configure Strip Log. A track is one vertical column in the strip log — you’ll typically have several stacked side by side.

Click + Add Track for each track you want, and pick a type:

For each track, configure:

• Data table — the table the track reads from (e.g., Lithology, Assays)
• Depth From / Depth To columns — usually picked up automatically from the table’s depth markers; override if needed
• Value column — the column whose values drive the track (rock_type for Interval Fill, au_g_t for Bar, sample_id for Text)
• Track width — wider tracks for the most informative columns; narrower for context

Click Save Configuration. The Strip Log re-renders immediately.

Color mapping (Interval Fill)

For Interval Fill tracks, a colour-map editor lets you assign a colour to each unique value in your dropdown column.

• Open the colour swatch for any value to pick a colour with the visual picker
• Optionally, apply a geological pattern fill from the built-in FGDC pattern library — over 200 patterns covering common rock types, igneous textures, sedimentary structures, mineralization styles, etc.
• Patterns layer on top of the base colour, so you can have a pale yellow with a granite hatch for “Granite”, a darker grey with a basalt pattern for “Basalt”, and so on

If your dropdown gains new values later, the colour map keeps existing assignments and offers a default for the new ones.

Bar track scaling

Bar tracks need a numeric scale. By default the track auto-scales to the min and max values across your data. You can override the scale to use a fixed range — useful when you want consistent visual weight across multiple holes (e.g., always 0–10 g/t for Au, regardless of what each hole’s actual range is).

Text tracks

Text tracks render the value column as a label at each interval. The font size and trim length are configurable in the track’s settings. Long values are truncated.

Save per drillhole

Strip Log configurations are saved per-drillhole. Configure once, the layout is remembered for that hole. You can configure a different track set on a different hole if your workflow needs it.

Standardising across holes. If you want every hole’s strip log to look the same, set up the configuration on one hole, copy the settings, and paste into another hole. (This is currently manual — there’s no “apply to all holes” button, but the configuration JSON is in each drillhole’s metadata.)

Tips

• Keep tracks narrow and many. A column of six 100-px tracks reads better than two 300-px tracks.
• Pair a Bar with an Interval Fill. Lithology fill + grade bar gives you both rock context and economic context at once.
• Use patterns sparingly. Pattern fills are striking when used for a small number of categories. With twenty rock types, all patterned, the strip log becomes hard to read — fall back to plain colour.
• Zoom out for context, zoom in to log. A 5-px/m view shows the whole hole at a glance; 50-px/m is comfortable for typing intervals at metre resolution.