KBE3D / KBCore / Cesium / ViewportQuad

类: ViewportQuad

A viewport aligned quad.

示例

const viewportQuad = new Cesium.ViewportQuad(new Cesium.BoundingRectangle(0, 0, 80, 40));
viewportQuad.material.uniforms.color = new Cesium.Color(1.0, 0.0, 0.0, 1.0);

参数

The BoundingRectangle defining the quad's position within the viewport.

参数

The Material defining the surface appearance of the viewport quad.

属性

show

show: boolean

Determines if the viewport quad primitive will be shown.

---

rectangle

rectangle: BoundingRectangle

The BoundingRectangle defining the quad's position within the viewport.

示例

viewportQuad.rectangle = new Cesium.BoundingRectangle(0, 0, 80, 40);

---

material

material: Material

The surface appearance of the viewport quad. This can be one of several built-in Material objects or a custom material, scripted with Fabric

. <p> The default material is <code>Material.ColorType</code>. </p>

示例

// 1. Change the color of the default material to yellow
viewportQuad.material.uniforms.color = new Cesium.Color(1.0, 1.0, 0.0, 1.0);

// 2. Change material to horizontal stripes
viewportQuad.material = Cesium.Material.fromType(Cesium.Material.StripeType);

方法

update()

update(): void

Called when Viewer or CesiumWidget render the scene to get the draw commands needed to render this primitive. <p> Do not call this function directly. This is documented just to list the exceptions that may be propagated when the scene is rendered: </p>

返回

void

---

isDestroyed()

isDestroyed(): boolean

Returns true if this object was destroyed; otherwise, false. <br /><br /> If this object was destroyed, it should not be used; calling any function other than <code>isDestroyed</code> will result in a DeveloperError exception.

返回

boolean

True if this object was destroyed; otherwise, false.

---

destroy()

destroy(): void

Destroys the WebGL resources held by this object. Destroying an object allows for deterministic release of WebGL resources, instead of relying on the garbage collector to destroy this object. <br /><br /> Once an object is destroyed, it should not be used; calling any function other than <code>isDestroyed</code> will result in a DeveloperError exception. Therefore, assign the return value (<code>undefined</code>) to the object as done in the example.

返回

void

示例

quad = quad && quad.destroy();

构造函数

构造函数

new ViewportQuad(rectangle?: BoundingRectangle, material?: Material): ViewportQuad

参数

rectangle?

BoundingRectangle

material?

Material

返回

ViewportQuad