QuadTo adds a quadratic Bézier path with control point (cpx,cpy) and end point (x,y).

Shear adds a shear transformation with sx the horizontal shear and sy the vertical shear.

ToPath converts the rectangle to a path.

Write renders the canvas and writes to a file. A renderer is chosen based on the filename extension. The options will be passed to the respective rend

IsGradient returns true when paint is a gradient.

Rot rotates the line OP by phi radians CCW.

AngleBetween returns the angle in radians [-PI,PI] from OP to OQ.

Fit shrinks the canvas' size that so all elements fit with a given margin in millimeters.

IsColor returns true when paint is a uniform color.

IsSimilarity is true if the matrix consists of only translation, rotation, reflection, and uniform scaling transformations. Uniform scaling means that

Len returns the number of segments.

Name returns the name of the font.

SetStrokeWidth sets the width in millimeters for stroking operations. The default stroke width is 1.0.

Contains returns true if r contains q.

Flatten flattens all Bézier and arc curves into linear segments and returns a new path. It uses tolerance as the maximum deviation.

NewRichText returns a new rich text with the given default font face.

Offset offsets the path by w and returns a new path. A positive w will offset the path to the right-hand side, that is, it expands CCW oriented contou

ParseSVGPath parses an SVG path data string.

Penalty returns a penalty item (explicit or possible newline, hyphen) with a given penalization factor. For hyphen insertion, width is the hyphen widt

ReverseScanner returns a path scanner in reverse order.

Rot90CW rotates the line OP by 90 degrees CW.

ToSVG returns a string that represents the path in the SVG path data format with minification.

angleEqual returns true if both angles are equal.

Arc adds an elliptical arc with radii rx and ry, with rot the counter clockwise rotation in degrees, and theta0 and theta1 the angles in degrees of th

Bounds returns the exact bounding box rectangle of the path.

Closed returns true if the last subpath of p is a closed path.

IsPattern returns true when paint is a pattern.

Pos returns the current position of the path, which is the end point of the last command.

P1 wallpaper group var P1 = []Matrix{Identity} Pm wallpaper group var Pm = []Matrix{ Identity, Identity.ReflectYAbout(0.5), } Pg wallpaper group v

Div divides x and y by f.

FastBounds returns the maximum bounding box rectangle of the path. It is quicker than Bounds.

IntervalExclusive returns true if f is in open interval [lower+Epsilon,upper-Epsilon] where lower and upper can be interchanged.

RoundedRectangle returns a rectangle of width w and height h with rounded corners of radius r. A negative radius will cast the corners inwards (i.e. c

Stroke converts a path into a stroke of width w and returns a new path. It uses cr to cap the start and end of the path, and jr to join all path eleme

Touches returns true if both rectangles touch (or overlap).

Transform transforms the path by the given transformation matrix. It modifies the path in-place.

CSS returns the CSS boldness value for the font face.

Dash returns a new path that consists of dashes. The elements in d specify the width of the dashes and gaps. It will alternate between dashes and gaps

Det returns the matrix determinant.

Intersects returns true if both shapes have at least one point in common, ie. they may touch/overlap/contain/equal.

RegularPolygon returns a regular polygon with radius r. It uses n vertices/edges, so when n approaches infinity this will return a path that approxima

Rot90CCW rotates the line OP by 90 degrees CCW.

Scale applies a scaling transform to the context

SetStrokeJoiner sets the line join function to be used for stroke mid points. The default stroke joiner is a miter join with a limit of 4.0 for a beve

Stroke strokes the path.

type SweepPointPair [2]*SweepPoint func (pair SweepPointPair) Swapped() SweepPointPair { return SweepPointPair{pair[1], pair[0]} }

angleBetween is true when theta is in range [lower,upper] including the end points. Angles can be outside the [0,2PI) range.

angleTime returns the time [0.0,1.0] of theta between [lower,upper]. When outside of [lower,upper], the result will also be outside of [0.0,1.0].

And returns the rectangle that is the overlap of both.

CP1 returns the first control point for quadratic and cubic Béziers.

TODO: add ASM optimized version for NRGBA images, since those are much faster to write as PNG Draw draws the canvas on a new image with given resoluti

End returns the current path segment end position.

Inv returns the matrix inverse.

IsText returns true if the text span is text and not objects (such as images or paths).

Italic returns true if italic.

NewRadialGradient returns a new radial gradient pattern.

NewTextBox is an advanced text formatter that will format text placement based on the settings. It takes a single font face, a string, the width or he

Relate returns the spatial relation as defined by DE-9IM between the two paths as well as the intersections between both. It is faster if you need to

Rotate applies a rotation transform to the context. The parameter is specified in radians.

SetDashes sets the dash phase and array.

SetFill sets the filling paint.

StarPolygon returns a star polygon of n points with alternating radius R and r. The up boolean defines whether the first point will be point upwards o

TextWidth returns the width of a given string in millimeters.