Map grid highlighter

Shade grids on a gridded map

Access

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Maps

Add map from photo

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Recently completed

Rings the grids whose Date Completed falls in this range.

Grid

Sensitivity31%

Start from tilt°

Show green guides Ignore all-white areas

Detection follows the curve of each purple line, so numbers inside grids and lines crossing the grid are ignored. Lower the sensitivity if lines are missed.

Add missing rows or columns

If the grid stops short of the map’s real edge, add the missing rows or columns. They are spaced like the lines beside them. Adding rows at the top or columns at the left shifts the numbering, so calibrate again afterward.

Rows at top

Rows at bottom

Columns at left

Columns at right

Set the grid by hand

Straight lines only. The tilt value above is a starting point for detection: positive means the right end sits lower.

Columns

Rows

Left margin (px)

Top margin (px)

Right margin (px)

Bottom margin (px)

Colors

Opacity25%

Shading

0 grids selected. Drag to paint; start on a grid in the current color to erase, or on another color to recolor.

Zoom & exportZoom & export

Zoom100%

Pinch on a trackpad, or hold Ctrl and scroll, to zoom.

Grid numbers

Numbers go up by 100 for each column right and by 1 for each row down (01 to 99, then B01 to B99, C01 and so on).

First column number

Top row

Show number on hover

Numbers to color (commas, spaces or new lines)

Hover over a grid to see its number. If it doesn’t match the map, press Calibrate, click a grid and type the number printed in it.

Schedule

Upload the .xlsx with a sheet named Schedule. Rows with a date in Date Completed are shaded with the palette color named Completed. Rows where Completed By says WIP are shaded with the color named WIP. The grid number is read from column A.

Import schedule (.xlsx)

Save and restore

Exports every shaded grid with its number and color, plus this map’s grid, numbering, palette and options. The photo is not included, so import into the map it came from.

Import file

Saved contents (copy, or paste a saved file here)

Add a map photo to begin.