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FEATURE: Path.get_stroked_extents

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Original file line number	Diff line number	Diff line change
@@ -25,3 +25,14 @@ Historically, `~.path.Path.get_extents` has always simply returned the Bbox of
`25`	`25`	`a curve's control points, instead of the Bbox of the curve itself. While this is`
`26`	`26`	`a correct upper bound for the path's extents, it can differ dramatically from`
`27`	`27`	`the Path's actual extents for non-linear Bezier curves.`
	`28`	`+`
	`29`	`+New function to get Path's stroked Bbox`
	`30`	`+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`
	`31`	`+`
	`32`	+A Path is typically drawn by stroking it (with some ``markeredgewidth``), an
	`33`	`+operation which changes its bounding box in a nontrivial way, depending on the`
	`34`	`+Path's joinstyle, capstyle, miterlimit, and shape.`
	`35`	`+`
	`36`	+`~.path.Path.get_stroked_extents` was added to allow computation of the final
	`37`	`+bounding box in pixel/points coordinates of the line, after it has been drawn`
	`38`	`+(and accounting for the joinstyle, capstyle, and miterlimit).`

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`@@ -234,6 +234,20 @@ def degree(self):`
`234`	`234`	`"""Degree of the polynomial. One less the number of control points."""`
`235`	`235`	`returnself._N-1`
`236`	`236`
	`237`	`+@property`
	`238`	`+deftan_in(self):`
	`239`	`+ifself._N<2:`
	`240`	`+raiseValueError("Need at least two control points to get tangent "`
	`241`	`+"vector!")`
	`242`	`+returnself.control_points[1]-self.control_points[0]`
	`243`	`+`
	`244`	`+@property`
	`245`	`+deftan_out(self):`
	`246`	`+ifself._N<2:`
	`247`	`+raiseValueError("Need at least two control points to get tangent "`
	`248`	`+"vector!")`
	`249`	`+returnself.control_points[-1]-self.control_points[-2]`
	`250`	`+`
`237`	`251`	`@property`
`238`	`252`	`defpolynomial_coefficients(self):`
`239`	`253`	`r"""`

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