Painting assistant

Krita has a framework to allow painting assistant, it is the virtual version of physical tools such as rulers, compass... It allows to restrict the drawing to follow a given shape. It differs from the line/ellipse tools in that those tools gives perfect and regular results, while the assistant allows the artist to have some control on the drawing. The following blog post contains a video that show it in work:

http://blog.cberger.net/2008/04/08/drawing-assistant-ruler/

Perspective assistant

Krita already contains a perspective grid: http://blog.cberger.net/2006/07/22/perspective-grid/ .

This assistant would allow to draw following the line of the perspective grid. This assistant require some investigation on how to make the perspective grid integrated with the painting assistant framework.