Graphics.PS.Query

Path query functions and related operations.

Documentation

startPt :: Path -> Maybe Pt

Locate the starting point of the path, which must begin with a MoveTo node.

endPt :: Path -> Maybe Pt

Locate the end point of the path.

mkValid :: Path -> Path

Ensure path begins with a MoveTo node.

approx :: Double -> Path -> Path

Approximate curves as n straight line segments. That is replace CurveTo nodes with n LineTo nodes calculated using bezier4.

close :: Path -> Path

Append a LineTo the start point of Path.