Path.Widen Method (Pen, Single)

Syntax

public void Widen(
	Pen pen,
	float arcTolerance
)

Remarks

Round joins and round caps are made of straight segments. The arcTolerance parameter is the largest allowed distance between these segments and the true arc. A smaller value gives more segments and a smoother result. A larger value gives fewer segments, so the path has fewer points and is faster to process. The Widen(Pen) overload uses 0.1.

The value is in path units, so choose it relative to the output size. For example, 0.1 is invisible when one unit is one pixel. It may be visible if you scale the path up a lot later.

Examples

var pen = new Pen(RgbColor.Black, 60f)
{
    LineJoin = LineJoin.Round,
    LineCap = LineCap.Round
};

var coarse = new Path();
coarse.MoveTo(45, 105);
coarse.LineTo(105, 45);

var fine = new Path(coarse);

// Round caps deviate from the true arc by up to 3 units. They have few points.
coarse.Widen(pen, 3f);

// Round caps deviate from the true arc by up to 0.1 units (the default). They have many points.
fine.Widen(pen, 0.1f);

The round caps with a large and a small arc tolerance. The dots show the points of the paths.

Exceptions

See Also

Reference

• Path Class
• Widen Overload
• Aurigma.GraphicsMill.Drawing Namespace

Manual

• Working with Paths