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handle7 methods

PathBuilder

A chainable path builder returned by canvas:path. Record segments with move_to / line_to / quad_to / cubic_to / close, then commit with fill or stroke.

Obtained from
DrawCanvas:path

The examples on this page start from:

lua
local color = datumhue.color
local canvas = datumhue.draw.new({ width = 320, height = 240 })
canvas:mount({ width = 320, height = 240 })
local path = canvas:path()

Methods 7

PathBuilder:move_to

method
PathBuilder:move_to(x: number, y: number) -> PathBuilder

Start a new subpath at (x, y). Returns self for chaining.

PathBuilder:line_to

method
PathBuilder:line_to(x: number, y: number) -> PathBuilder

Add a straight segment to (x, y). Returns self for chaining.

PathBuilder:quad_to

method
PathBuilder:quad_to(cx: number, cy: number, x: number, y: number) -> PathBuilder

Add a quadratic bezier through control point (cx, cy) to (x, y). Returns self.

PathBuilder:cubic_to

method
PathBuilder:cubic_to(c1x: number, c1y: number, c2x: number, c2y: number, x: number, y: number) -> PathBuilder

Add a cubic bezier through control points (c1x, c1y) / (c2x, c2y) to (x, y). Returns self.

PathBuilder:close

method
PathBuilder:close() -> PathBuilder

Close the current subpath back to its start. Returns self.

PathBuilder:fill

method
PathBuilder:fill(options?: draw.PathFillOptions) -> DrawPrimitive?

Fill the recorded path as a new primitive, and empty the builder for another path. Returns the new DrawPrimitive, or nil if the canvas is invalid.

Example
path:move_to(-80, -60)
    :line_to(80, -60)
    :quad_to(0, 140, -80, -60)
    :close()
path:fill({ color = color("#a7c080") })

options draw.PathFillOptions options 3 keys

KeyTypeDefaultDescription
colorColordatumhue.color(1, 1, 1)Fill / stroke color.
znumberthe path auto-stacks in creation orderDepth layer within the canvas.
materialShaderthe standard flat materialShader material to apply. 2D surfaces take a Shader; Material handles are 3D-only.

Extended by: draw.PathStrokeOptions

PathBuilder:stroke

method
PathBuilder:stroke(options?: draw.PathStrokeOptions) -> DrawPrimitive?

Stroke the recorded path as a new primitive, and empty the builder for another path. Returns the new DrawPrimitive, or nil if the canvas is invalid.

Example
path:move_to(-120, 0):cubic_to(-60, 100, 60, -100, 120, 0)
path:stroke({ width = 4, color = color("#7fbbb3") })

options draw.PathStrokeOptions options 4 keys, 3 inherited

KeyTypeDefaultDescription
widthnumber2Stroke width in canvas units.
From draw.PathFillOptions
colorColordatumhue.color(1, 1, 1)Fill / stroke color.
znumberthe path auto-stacks in creation orderDepth layer within the canvas.
materialShaderthe standard flat materialShader material to apply. 2D surfaces take a Shader; Material handles are 3D-only.

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(c) 2026 Shuusei AB. Quote excerpts of this manual, with attribution to DatumHue, in your own documentation, tutorials, course materials, reviews, and other writing or video. Republishing it in whole or in substantial part needs written permission: support@datumhue.com.

Victor Mono is licensed under the SIL Open Font License 1.1
Copyright (c) 2024, Rune Bjørnerås (https://github.com/rubjo)

This Font Software is licensed under the SIL Open Font License, Version 1.1.
This license is copied below, and is also available with a FAQ at:
http://scripts.sil.org/OFL


-----------------------------------------------------------
SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
-----------------------------------------------------------

PREAMBLE
The goals of the Open Font License (OFL) are to stimulate worldwide
development of collaborative font projects, to support the font creation
efforts of academic and linguistic communities, and to provide a free and
open framework in which fonts may be shared and improved in partnership
with others.

The OFL allows the licensed fonts to be used, studied, modified and
redistributed freely as long as they are not sold by themselves. The
fonts, including any derivative works, can be bundled, embedded,
redistributed and/or sold with any software provided that any reserved
names are not used by derivative works. The fonts and derivatives,
however, cannot be released under any other type of license. The
requirement for fonts to remain under this license does not apply
to any document created using the fonts or their derivatives.

DEFINITIONS
"Font Software" refers to the set of files released by the Copyright
Holder(s) under this license and clearly marked as such. This may
include source files, build scripts and documentation.

"Reserved Font Name" refers to any names specified as such after the
copyright statement(s).

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distributed by the Copyright Holder(s).

"Modified Version" refers to any derivative made by adding to, deleting,
or substituting -- in part or in whole -- any of the components of the
Original Version, by changing formats or by porting the Font Software to a
new environment.

"Author" refers to any designer, engineer, programmer, technical
writer or other person who contributed to the Font Software.

PERMISSION & CONDITIONS
Permission is hereby granted, free of charge, to any person obtaining
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redistribute, and sell modified and unmodified copies of the Font
Software, subject to the following conditions:

1) Neither the Font Software nor any of its individual components,
in Original or Modified Versions, may be sold by itself.

2) Original or Modified Versions of the Font Software may be bundled,
redistributed and/or sold with any software, provided that each copy
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3) No Modified Version of the Font Software may use the Reserved Font
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must be distributed entirely under this license, and must not be
distributed under any other license. The requirement for fonts to
remain under this license does not apply to any document created
using the Font Software.

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not met.

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THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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