DrawArea.waveTransform

void waveTransform(int period, double amplitude, double direction = 0, double startAngle = 0, bool longitudinal = false, int bgColor = 0xffffff, int filter = LinearFilter, double blur = 1);

Moves the pixels on the drawing surface according to a sinusoidal function to achieve a wave effect.

Argument	Default	Description
period	(Mandatory)	The period of the wave in pixels.
amplitude	(Mandatory)	The amplitude of the wave in pixels.
direction	0	The propagation direction of the wave. The upward pointing direction is 0 degree, and the angle is measured clockwise.
startAngle	0	The initial phase angle of the wave in degrees.
longitudinal	false	Determine if the wave is transversal or longitudinal. true means transversal. false means longitudinal.
bgColor	FFFFFF	The background color used to fill the space left after transformation.
filter	LinearFilter	The filter to use for re-sampling.
blur	1	The blur factor to use for re-sampling.

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