Rebels Rule

A ruler for Krita that keeps your brush. Tap to set an anchor, move the pointer away and paint toward it: the stroke stays on the straight line between where you started and the anchor, with pressure, tilt and texture intact. Inspired by the excellent ruler tool in Rebelle.

Use it

1. Press Ctrl+Alt+R (or Tools ▸ Scripts ▸ Rebels Rule) to turn the ruler on.
2. Tap the canvas to set an anchor. Tap again to move it.
3. Move away and paint toward the anchor. Each stroke gets its own straight line to the same anchor.

Esc clears the anchor. Strokes with Ctrl, Shift, Alt or Space held behave normally, so colour picking, brush resizing and panning still work.

Install

Mac users? Download the zip file.

1. Download rebelsrule.zip.
2. In Krita, choose Tools ▸ Scripts ▸ Import Python Plugin from File… and pick the zip.
3. When Krita asks Enable plugins now?, choose Yes.
   • If you chose No, open Settings ▸ Configure Krita ▸ Python Plugin Manager, tick Rebels Rule and restart Krita.
4. Restart Krita, then press Ctrl+Alt+R to turn the ruler on.

Why not Import from Web? In Krita 5.3 on macOS it fails with a certificate error for every plugin: Krita's built-in Python looks for its list of trusted certificates in a folder that only exists on the machine Krita was built on.

Windows and Linux

1. In Krita, choose Tools ▸ Scripts ▸ Import Python Plugin from Web… and paste this address:

   https://github.com/chrleon/rebelsrule/releases/latest/download/rebelsrule.zip
   

   Or download rebelsrule.zip from the latest release and choose Import Python Plugin from File… instead.

2. When Krita asks Enable plugins now?, choose Yes.

   • If you chose No, open Settings ▸ Configure Krita ▸ Python Plugin Manager, tick Rebels Rule and restart Krita.

3. Restart Krita, then press Ctrl+Alt+R to turn the ruler on.

Tested with Krita 5.3 on macOS.

Uninstall

1. In Krita, go to Settings ▸ Manage Resources… and click Open Resource Folder.
2. Quit Krita.
3. In the folder that opened, delete pykrita/rebelsrule, pykrita/rebelsrule.desktop and actions/rebelsrule.action.

Krita's Python Plugin Manager can only turn plugins off, so removing these files is how you uninstall one.

Develop

./build.sh              # link plugins into Krita, with hot reload on save
./build.sh --copy       # install a plain copy, no dev tools
./build.sh --zip        # build release zips in dist/
./build.sh --uninstall  # remove the plugin from Krita, e.g. before testing a zip import

Linked plugins reload when you save a .py file, and get a Reload Rebels Rule action (Ctrl+Alt+Shift+R). The plugin's manual is generated from Manual.src.html.

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Designed by a human, built by a machine.