CGPathSetMiterLimit

CGPathSetMiterLimit is a function in the Core Graphics framework, used to set the miter limit of a path. The miter limit is a value that determines when the miter join on a line should be reduced to a bevel join. It is used in conjunction with the line cap and join styles to control the appearance of lines and corners.

The miter limit is a float value that ranges from 0 to ∞. When the miter limit is too small, the join between two lines may be clipped or rounded off, resulting in a bevel join. When the miter limit is large enough, the join will remain a sharp miter. The default miter limit is set to 1.

CGPathSetMiterLimit is used to modify the miter limit of a path, which is a subset of the overall CGPath object. This allows developers to adjust the appearance of individual paths or curves within a larger path or graphics context. The function takes two arguments: the path to modify, and the new miter limit value.

The CGPathSetMiterLimit function is commonly used in conjunction with other graphics drawing functions, such as CGPathMoveToPoint and CGPathAddLineToPoint, to create custom line styles and join patterns. By using this function in combination with other Core Graphics calls, developers can create complex and visually interesting graphics.

When using CGPathSetMiterLimit, it's worth noting that the miter limit applies only to lines that are drawn with a miter join. If the join style is set to rounded or beveled, the miter limit is ignored. Additionally, the miter limit can be reset to its default value using the CGPathResetFlatteningTolerance function.