Points returns all the points occupied by this Object. Every object has at least one point, and all points are both in-order and contiguous.

Corners returns all the corners (change of direction) along the path.

IsText returns true if the object is textual and does not represent a path.

Objects returns all the objects found in the underlying grid.

String implements fmt.Stringer on Point.

Tag returns the tag of this object, if any.

NewCanvas returns a new Canvas, initialized from the provided data. If tabWidth is set to a non-negative value, that value will be used to convert tab

IsClosed is true if the object is composed of a closed path.

isHorizontal returns true if p1 and p2 are horizontally aligned.

isVertical returns true if p1 and p2 are vertically aligned.

seal finalizes the object, setting its text, its corners, and its various rendering hints.

IsDashed is true if this object is a path object, and lines should be drawn dashed.

SetTag sets an options tag on this Object so the renderer may look up options.

Size returns the visual dimensions of the Canvas.

Text returns the text associated with this Object if textual, and nil otherwise.

colorToRGB matches a color string and returns its RGB components.

The following functions return true when the diagonals are connected in various compass directions.

pointsToCorners returns all the corners (points at which there is a change of directionality) for a path. It additionally returns a truth value indica

CanvasToSVG renders the supplied asciitosvg.Canvas to SVG, based on the supplied options.

EnclosingObjects returns the set of objects that contain this point in order from most to least specific.

HasPoint returns true if the object contains the supplied Point coordinates.

Options returns a map of options to apply to Objects based on the object's tag. This maps tag name to a map of option names to options.

Diagonal transitions are special: you can move lines diagonally, you can move diagonally from corners to edges or lines, but you cannot move diagonall

The expandTabs function pads tab characters to the specified width of spaces for the provided line of input. We cannot simply pad based on byte-offset

findObjects finds all objects (lines, polygons, and text) within the underlying grid.

Private details.

isPathStart returns true on any form of ascii art that can start a graph.

The next returns the points that can be used to make progress, scanning (in order) horizontal progress to the left or right, vertical progress above o

scanPath tries to complete a total path (for lines or polygons) starting with some partial path. It recurses when it finds multiple unvisited outgoing

scanText extracts a line of text.

textColor returns an accessible text color to use on top of a supplied background color. The formula used for calculating whether the contrast is acce

HasPoint determines whether the supplied point lives inside the object. Since we support complex convex and concave polygons, we need to do a full poi

Less returns in order top most, then left most.