Class: ImageLayer

Defined in: layers/image.ts:64

An RGBA image (Bokeh image_rgba / image_url) drawn as a textured quad over a data-space extent — reuses the heatmap quad path. A string source is loaded asynchronously; pass onLoad (→ plot.requestRender) so the plot redraws once the pixels arrive.

Implements

• Layer

Constructors

Constructor

new ImageLayer(gl, opts): ImageLayer;

Defined in: layers/image.ts:83

Parameters

Parameter	Type
gl	WebGL2RenderingContext
opts	ImageOptions

Returns

ImageLayer

Properties

colorCss

readonly colorCss: "#94a3b8" = "#94a3b8";

Defined in: layers/image.ts:67

---

id

readonly id: string;

Defined in: layers/image.ts:65

Implementation of

Layer.id

---

name

readonly name: string;

Defined in: layers/image.ts:66

---

yAxis

readonly yAxis: string;

Defined in: layers/image.ts:68

The y axis this layer is bound to.

Implementation of

Layer.yAxis

Methods

bounds()

bounds(): {
  x: Range;
  y: Range;
};

Defined in: layers/image.ts:168

Data-space bounds of this layer, for autoscaling. null if empty.

Returns

{
  x: Range;
  y: Range;
}

x

x: Range;

y

y: Range;

Implementation of

Layer.bounds

---

dispose()

dispose(): void;

Defined in: layers/image.ts:186

Returns

void

Implementation of

Layer.dispose

---

draw()

draw(state): void;

Defined in: layers/image.ts:172

Parameters

Parameter	Type
state	DrawState

Returns

void

Implementation of

Layer.draw

---

setData()

setData(source, onLoad?): void;

Defined in: layers/image.ts:148

Replace the image source and re-upload the texture (for streaming).

Parameters

Parameter	Type
source	ImageSource
onLoad?	() => void

Returns

void