Canvas Draw Rectangles
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How to Draw a Rectangle
To draw a rectangle, follow these steps
- canvas - Assigning the canvas element to a variable.
- ctx - Assigning the 2d rendering context to another variable by calling the
getContext('2d')
method. - rect() - Use
rect()
canvas method to draw a rectangle shape (object is invisible here). - fill() - Use
fill()
canvas method to fill the object with the currentfillStyle
. The defaultfillStyle
color is 'black'.
Example
HTML Online Editor
<!DOCTYPE html>
<html lang="en-US">
<body>
<canvas id="point" width="200" height="100">
Your browser does not support the canvas element.
</canvas>
<script>
var canvas = document.getElementById("point");
var ctx = canvas.getContext("2d");
ctx.rect(0, 0, 150, 75);
ctx.fill();
</script>
</body>
</html>
Syntax
ctx.rect(x, y, width, height)
Attributes Value
Value | Explanation |
---|---|
x | Specifies the x-axis coordinate of the rectangle's starting point. |
y | Specifies the y-axis coordinate of the rectangle's starting point. |
width | Specifies the rectangle's width.
|
height | Specifies the rectangle's height.
|
How to Custom Color the Rectangle
To custom color the rectangle, follow these steps
- canvas - Assigning the canvas element to a variable.
- ctx - Assigning the 2d rendering context to another variable by calling the
getContext('2d')
method. - fillStyle - Use
fillStyle
canvas property to specify the color to use inside shapes (any shape). - fillRect() - Use
fillRect()
canvas method to draws a rectangle that is filled according to the currentfillStyle
.
Example
HTML Online Editor
<!DOCTYPE html>
<html lang="en-US">
<body>
<canvas id="point" width="200" height="100">
Your browser does not support the canvas element.
</canvas>
<script>
var canvas = document.getElementById("point");
var ctx = canvas.getContext("2d");
ctx.fillStyle = "#339933";
ctx.fillRect(0, 0, 150, 75);
</script>
</body>
</html>
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