CanvasRenderingContext2D: lineWidth property
The
CanvasRenderingContext2D.lineWidth
property of the Canvas 2D API sets the thickness of lines.
Note: Lines can be drawn with the
stroke()
,
strokeRect()
,
and strokeText()
methods.
Value
Examples
Changing line width
This example draws a line and a rectangle, using a line width of 15 units.
HTML
html
<canvas id="canvas"></canvas>
JavaScript
js
const canvas = document.getElementById("canvas");
const ctx = canvas.getContext("2d");
ctx.lineWidth = 15;
ctx.beginPath();
ctx.moveTo(20, 20);
ctx.lineTo(130, 130);
ctx.rect(40, 40, 70, 70);
ctx.stroke();
Result
More examples
For more examples and explanation about this property, see Applying styles and color in the Canvas Tutorial.
Specifications
Specification |
---|
HTML Standard # dom-context-2d-linewidth-dev |
Browser compatibility
BCD tables only load in the browser
See also
- The interface defining this property:
CanvasRenderingContext2D
CanvasRenderingContext2D.lineCap
CanvasRenderingContext2D.lineJoin
- Applying styles and color