PositionArray

Defined in: layout/PositionArray.ts:11

GoJS-compatible: a sparse occupancy grid used by layouts (originally for AvoidsLinksRouter-style obstacle avoidance) to track which rectangular cells are occupied. A standalone, real implementation — not yet consumed by any of graphojs’s own layouts, which compute obstacle avoidance differently (see render/LinkRouter.ts’s routeOrthogonalAvoidingObstacles).

Constructors

Constructor

new PositionArray(cellsize): PositionArray

Defined in: layout/PositionArray.ts:20

Parameters

cellsize

Size

Returns

PositionArray

Accessors

bounds

Get Signature

get bounds(): Rect

Defined in: layout/PositionArray.ts:25

Returns

Rect

---

cellHeight

Get Signature

get cellHeight(): number

Defined in: layout/PositionArray.ts:43

Returns

number

Set Signature

set cellHeight(value): void

Defined in: layout/PositionArray.ts:47

Parameters

value

number

Returns

void

---

cellWidth

Get Signature

get cellWidth(): number

Defined in: layout/PositionArray.ts:35

Returns

number

Set Signature

set cellWidth(value): void

Defined in: layout/PositionArray.ts:39

Parameters

value

number

Returns

void

Methods

isUnoccupied()

isUnoccupied(x, y, w, h): boolean

Defined in: layout/PositionArray.ts:66

Whether every cell covered by the given rect is unoccupied.

Parameters

x

number

y

number

w

number

h

number

Returns

boolean

---

maxAvoidsLinksSpaceH()

maxAvoidsLinksSpaceH(minx, maxx, y, h): number

Defined in: layout/PositionArray.ts:77

The widest unoccupied horizontal run available at row y (height h) between minx/maxx.

Parameters

minx

number

maxx

number

y

number

h

number

Returns

number

---

maxAvoidsLinksSpaceV()

maxAvoidsLinksSpaceV(miny, maxy, x, w): number

Defined in: layout/PositionArray.ts:102

The tallest unoccupied vertical run available at column x (width w) between miny/maxy.

Parameters

miny

number

maxy

number

x

number

w

number

Returns

number

---

occupy()

occupy(x, y, w, h): void

Defined in: layout/PositionArray.ts:52

Mark the cells covered by the given document-coordinate rect as occupied.

Parameters

x

number

y

number

w

number

h

number

Returns

void