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Specifies the shape to be used at the corners of paths that are stroked. Join styles are significant only at points where consecutive segments of a path connect at an angle; segments that meet or intersect fortuitously receive no special treatment.
public enum LineJoinStyle
Bevel = 2
The two segments are finished with butt caps (see “Line Cap Style” on page 216) and the resulting notch beyond the ends of the segments is filled with a triangle.
Miter = 0
The outer edges of the strokes for the two segments are extended until they meet at an angle, as in a picture frame. If the segments meet at too sharp an angle (as defined by the miter limit parameter—see “Miter Limit,” above), a bevel join is used instead.
Round = 1
An arc of a circle with a diameter equal to the line width is drawn around the point where the two segments meet, connecting the outer edges of the strokes for the two segments. This pieslice-shaped figure is filled in, producing a rounded corner.