matrix_rotate_arbitrary_axis 1.1.0

Simple library to generate rotation matrix around arbitrary axis

matrix_rotate_arbitrary_axis

Library to generate rotation matrix around arbitrary axis.

Original implementation of RotationMatrix class (matrix_rotate_arbitrary_axis.dart) by Glenn Murray.

Null-safety enabled.

Usage

If you want to apply rotation matrix to canvas in Flutter you can just call:

// Build a rotation matrix for rotations about the line through (a, b, c) 
// parallel to [uUn, vUn, wUn] by the angle theta. 
final rotationMatrix = RotationMatrix(a, b, c, uUn, vUn, wUn, angleInRadians);
final matrix = rotationMatrix.matrix;
canvas.transform(matrix2);

The parameters are:

• [a] x-coordinate of a point on the line of rotation.
• [b] y-coordinate of a point on the line of rotation.
• [c] z-coordinate of a point on the line of rotation.
• [uUn] x-coordinate of the line's direction vector (unnormalized).
• [vUn] y-coordinate of the line's direction vector (unnormalized).
• [wUn] z-coordinate of the line's direction vector (unnormalized).
• [theta] The angle of rotation, in radians.

Example

See example in the example folder

Tests

To run tests:

dart --enable-experiment=non-nullable pub get
dart --enable-experiment=non-nullable pub run test