Method rotate

shared/java/Canvas.java:1267–1270

@param deg angle in degrees @return this

(float deg)

     * @return     this
     */
    @NotNull @Contract("_ -> this")
    public Canvas rotate(float deg) {
        return concat(Matrix33.makeRotate(deg));
    }

    @NotNull @Contract("_, _ -> this")
    public Canvas skew(float sx, float sy) {