HTML5 Canvas–Transforms - HTML 5

What is canvas transforms in HTML5?

HTML5 canvas offers methods that allow changes directly to the transformation matrix and this transformation matrix must initially be the identity transform. Later it can be adjusted using the transformation methods.

Sr.No.

Method and Description

1

transform(m11, m12, m21, m22, dx, dy)

transform(m11, m12, m21, m22, dx, dy) method is used to change the transformation matrix to apply the matrix given by the arguments.

2

setTransform(m11, m12, m21, m22, dx, dy)

setTransform(m11, m12, m21, m22, dx, dy) method is used to change the transformation matrix into the matrix given by arguments .

Transform(m11, m12, m21, m22, dx, dy) method should multiply the current transformation matrix with the matrix described by

m11 m21 dx

m12 m22 dy

0 0 1

SetTransform(m11, m12, m21, m22, dx, dy) method should reset current transform to identity matrix, and then invoke the transform(m11, m12, m21, m22, dx, dy) method with the same arguments.

Example

Below example which makes use of transform() and setTransform() methods

Output

Transforms

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