# ModelGraphics

#### new Cesium.ModelGraphics(options)
DataSources/ModelGraphics.js 54

  A 3D model based on glTF, the runtime asset format for WebGL, OpenGL ES, and OpenGL. The position and orientation of the model is determined by the containing `Entity`.

  Cesium includes support for glTF geometry, materials, animations, and skinning. Cameras and lights are not currently supported.

  Name | Type | Description
  --- | --- | ---
  `options` | Object | optional Object with the following properties:
  Name | Type | Default | Description
  --- | --- | --- | ---
  `uri` | Property |  | optional A string Property specifying the URI of the glTF asset.
  `show` | Property | `true` | optional A boolean Property specifying the visibility of the model.
  `scale` | Property | `1.0` | optional A numeric Property specifying a uniform linear scale.
  `minimumPixelSize` | Property | `0.0` | optional A numeric Property specifying the approximate minimum pixel size of the model regardless of zoom.
  `maximumScale` | Property |  | optional The maximum scale size of a model. An upper limit for minimumPixelSize.
  `incrementallyLoadTextures` | Property | `true` | optional Determine if textures may continue to stream in after the model is loaded.
  `runAnimations` | Property | `true` | optional A boolean Property specifying if glTF animations specified in the model should be started.
  `nodeTransformations` | Property |  | optional An object, where keys are names of nodes, and values are `TranslationRotationScale` Properties describing the transformation to apply to that node.

  ##### Demo:

  - Cesium Sandcastle 3D Models Demo

  ##### See:

  - 3D Models Tutorial

### Members

#### readonlydefinitionChanged : Event
DataSources/ModelGraphics.js 83

  Gets the event that is raised whenever a property or sub-property is changed or modified.

#### incrementallyLoadTextures : Property
DataSources/ModelGraphics.js 133

  Get or sets the boolean Property specifying whether textures may continue to stream in after the model is loaded.

#### maximumScale : Property
DataSources/ModelGraphics.js 125

  Gets or sets the numeric Property specifying the maximum scale size of a model. This property is used as an upper limit for `ModelGraphics#minimumPixelSize`.

#### minimumPixelSize : Property
DataSources/ModelGraphics.js 116

  Gets or sets the numeric Property specifying the approximate minimum pixel size of the model regardless of zoom. This can be used to ensure that a model is visible even when the viewer zooms out. When `0.0`, no minimum size is enforced.
  Default Value: `0.0`

#### nodeTransformations : PropertyBag
DataSources/ModelGraphics.js 156

  Gets or sets the set of node transformations to apply to this model. This is represented as an `PropertyBag`, where keys are names of nodes, and values are `TranslationRotationScale` Properties describing the transformation to apply to that node.

#### runAnimations : Property
DataSources/ModelGraphics.js 148

  Gets or sets the boolean Property specifying if glTF animations should be run.
  Default Value: `true`

#### scale : Property
DataSources/ModelGraphics.js 105

  Gets or sets the numeric Property specifying a uniform linear scale for this model. Values greater than 1.0 increase the size of the model while values less than 1.0 decrease it.
  Default Value: `1.0`

#### show : Property
DataSources/ModelGraphics.js 95

  Gets or sets the boolean Property specifying the visibility of the model.
  Default Value: `true`

#### uri : Property
DataSources/ModelGraphics.js 140

  Gets or sets the string Property specifying the URI of the glTF asset.

### Methods

#### clone(result) → ModelGraphics
DataSources/ModelGraphics.js 165

  Duplicates this instance.

  Name | Type | Description
  --- | --- | ---
  `result` | ModelGraphics | optional The object onto which to store the result.

  ##### Returns:

  The modified result parameter or a new instance if one was not provided.

#### merge(source)
DataSources/ModelGraphics.js 187

  Assigns each unassigned property on this object to the value of the same property on the provided source object.

  Name | Type | Description
  --- | --- | ---
  `source` | ModelGraphics | The object to be merged into this object.