@ue-too/board / index / pointIsInViewPort

関数: pointIsInViewPort()

pointIsInViewPort(point, viewPortWidth, viewPortHeight, cameraPosition, cameraZoomLevel, cameraRotation): boolean

定義: packages/board/src/camera/utils/coordinate-conversion.ts:314

Checks if a world point is currently visible in the viewport.

パラメータ

point

Point

Point in world coordinates

viewPortWidth

number

Viewport width in CSS pixels

viewPortHeight

number

Viewport height in CSS pixels

cameraPosition

Point

Camera position in world coordinates

cameraZoomLevel

number

Camera zoom level

cameraRotation

number

Camera rotation in radians

戻り値

boolean

True if point is visible in viewport, false otherwise

Remarks

A point is visible if it falls within the rectangular viewport bounds. This uses canvas coordinates for the visibility check (0 to width/height).

例

const isVisible = pointIsInViewPort(
  { x: 550, y: 300 },  // world point
  1920, 1080,
  { x: 500, y: 300 },  // camera position
  1.0,
  0
);
// Returns true if point is within viewport bounds