Filter raycasts by the alpha and proportion inside the viewport. More...

Inherits MonoBehaviour, and ICanvasRaycastFilter.

Public Member Functions
bool	IsRaycastLocationValid (Vector2 sp, Camera eventCamera)
	Check if the raycast valid, i.e., the `visibility` is over the `threshold`. More...

Public Attributes
RectTransform	viewport
	The viewport contains this to calculate the proportion. More...

float	threshold
	The minimum visibility to pass raycasts. More...

int	sample = 10
	The sampling frequency to calculate the proportion when this rotates relative to the `viewport`. More...

Properties
Graphic	graphic `[get]`
	Get the `UnityEngine.UI.Graphic` with this, throw exception if none. More...

float	alpha `[get]`
	Get the alpha of the `UnityEngine.UI.Graphic` with this. More...

float	proportion `[get]`
	Get the `UnityEngine.RectTransform` proportion inside the `viewport`. More...

float	visibility `[get]`
	Get the visibility, i.e., the `alpha` multiply the `proportion`. More...

Detailed Description

Filter raycasts by the alpha and proportion inside the viewport.

Member Function Documentation

bool IsRaycastLocationValid	(	Vector2	sp,
		Camera	eventCamera
	)

Check if the raycast valid, i.e., the visibility is over the threshold.

Parameters

sp	Screen position.
eventCamera	Raycast camera.

RectTransform viewport

The viewport contains this to calculate the proportion.

float threshold

The minimum visibility to pass raycasts.

int sample = 10

The sampling frequency to calculate the proportion when this rotates relative to the viewport.

Graphic graphic

get

Get the UnityEngine.UI.Graphic with this, throw exception if none.

float alpha

get

Get the alpha of the UnityEngine.UI.Graphic with this.

float proportion

get

Get the UnityEngine.RectTransform proportion inside the viewport.

Use parent UnityEngine.UI.Mask or UnityEngine.Canvas instead of viewport if not set. Or return 0 if there's none of the above.

float visibility

get

Get the visibility, i.e., the alpha multiply the proportion.

Only valid when the graphic is active and enabled in the hierarchy, otherwise return 0.