Cesium JS API
AppearanceArcGisMapServerImageryProviderArcGISTiledElevationTerrainProviderArcTypeAssociativeArrayAxisAxisAlignedBoundingBoxbarycentricCoordinatesBillboardBillboardCollectionBillboardGraphicsBillboardVisualizerbinarySearchbinarySearchComparatorBingMapsGeocoderServiceBingMapsImageryProviderBingMapsStyleBlendEquationBlendFunctionBlendingStateBlendOptionBoundingRectangleBoundingSphereBoxEmitterBoxGeometryBoxGeometryUpdaterBoxGraphicsBoxOutlineGeometrybuildModuleUrlCallbackPropertyCameraCameraEventAggregatorCameraEventTypeCartesian2Cartesian3Cartesian4CartographicCartographicGeocoderServiceCatmullRomSplineCesium3DTileCesium3DTileColorBlendModeCesium3DTileContentCesium3DTileFeatureCesium3DTilePointFeatureCesium3DTilesetCesium3DTilesetGraphicsCesium3DTilesetVisualizerCesium3DTileStyleCesium3DTilesVoxelProviderCesiumTerrainProviderCesiumWidgetCheckerboardMaterialPropertyCircleEmitterCircleGeometryCircleOutlineGeometryClassificationPrimitiveClassificationTypeClippingPlaneClippingPlaneCollectionClockClockRangeClockStepcloneCloudCollectionCloudTypeColorColorBlendModeColorGeometryInstanceAttributeColorMaterialPropertycombineComponentDatatypeCompositeEntityCollectionCompositeMaterialPropertyCompositePositionPropertyCompositePropertyCompressedTextureBufferConditionsExpressionConeEmitterConstantPositionPropertyConstantPropertyConstantSplineContextOptionsCoplanarPolygonGeometryCoplanarPolygonOutlineGeometryCornerTypeCorridorGeometryCorridorGeometryUpdaterCorridorGraphicsCorridorOutlineGeometrycreateElevationBandMaterialcreateElevationBandMaterialBandcreateElevationBandMaterialEntrycreateGuidcreateOsmBuildingscreateTangentSpaceDebugPrimitivecreateWorldImagerycreateWorldTerrainCreditCreditDisplayCubicRealPolynomialCullFaceCullingVolumeCumulusCloudCustomDataSourceCustomHeightmapTerrainProviderCustomShaderCustomShaderModeCustomShaderTranslucencyModeCylinderGeometryCylinderGeometryUpdaterCylinderGraphicsCylinderOutlineGeometryCzmlDataSourceDataSourceDataSourceClockDataSourceCollectionDataSourceDisplayDebugAppearanceDebugCameraPrimitiveDebugModelMatrixPrimitiveDefaultProxydefaultValuedefinedDepthFunctiondestroyObjectDeveloperErrorDirectionalLightDirectionUpDiscardEmptyTileImagePolicyDiscardMissingTileImagePolicyDistanceDisplayConditionDistanceDisplayConditionGeometryInstanceAttributeEasingFunctionEllipseGeometryEllipseGeometryUpdaterEllipseGraphicsEllipseOutlineGeometryEllipsoidEllipsoidGeodesicEllipsoidGeometryEllipsoidGeometryUpdaterEllipsoidGraphicsEllipsoidOutlineGeometryEllipsoidRhumbLineEllipsoidSurfaceAppearanceEllipsoidTangentPlaneEllipsoidTerrainProviderEntityEntityClusterEntityCollectionEntityViewEventEventHelperexcludesReverseAxisexportKmlexportKmlModelCallbackexportKmlResultKmlexportKmlResultKmzExpressionExtrapolationTypeFeatureDetectionFogformatErrorFrameRateMonitorFrustumGeometryFrustumOutlineGeometryFullscreenGeocoderServiceGeocodeTypeGeographicProjectionGeographicTilingSchemeGeoJsonDataSourceGeometryGeometryAttributeGeometryAttributesGeometryFactoryGeometryInstanceGeometryInstanceAttributeGeometryPipelineGeometryUpdaterGeometryVisualizergetAbsoluteUrigetBaseUrigetExtensionFromUriGetFeatureInfoFormatgetFilenameFromUrigetImagePixelsgetTimestampGlobeGlobeTranslucencyGoogleEarthEnterpriseImageryProviderGoogleEarthEnterpriseMapsProviderGoogleEarthEnterpriseMetadataGoogleEarthEnterpriseTerrainDataGoogleEarthEnterpriseTerrainProviderGpxDataSourceGregorianDateGridImageryProviderGridMaterialPropertyGroundGeometryUpdaterGroundPolylineGeometryGroundPolylinePrimitiveGroundPrimitiveHeadingPitchRangeHeadingPitchRollHeadingPitchRollValuesHeightmapEncodingHeightmapTerrainDataHeightReferenceHermitePolynomialApproximationHermiteSplineHilbertOrderHorizontalOriginI3SDataProviderI3SFeatureI3SFieldI3SGeometryI3SLayerI3SNodeImageBasedLightingImageMaterialPropertyImageryLayerImageryLayerCollectionImageryLayerFeatureInfoImageryProviderImageryTypesincludesReverseAxisIndexDatatypeIntersectIntersections2DIntersectionTestsIntervalIonIonGeocoderServiceIonImageryProviderIonResourceIonWorldImageryStyleisLeapYearIso8601JulianDateKeyboardEventModifierKmlCameraKmlDataSourceKmlFeatureDataKmlLookAtKmlTourKmlTourFlyToKmlTourWaitLabelLabelCollectionLabelGraphicsLabelStyleLabelVisualizerLagrangePolynomialApproximationLeapSecondLightLightingModelLinearApproximationLinearSplineMapboxImageryProviderMapboxStyleImageryProviderMapMode2DMapProjectionMaterialMaterialAppearanceMaterialSupportMaterialPropertyMathMatrix2Matrix3Matrix4mergeSortmergeSortComparatorMetadataClassMetadataClassPropertyMetadataComponentTypeMetadataEnumMetadataEnumValueMetadataSchemaMetadataTypeModelModelAnimationModelAnimationCollectionModelAnimationLoopModelFeatureModelGraphicsModelNodeModelVisualizerMoonMorphWeightSplineNearFarScalarNeverTileDiscardPolicyNodeTransformationPropertyobjectToQueryOccluderOpenCageGeocoderServiceOpenStreetMapImageryProviderOrientedBoundingBoxOrthographicFrustumOrthographicOffCenterFrustumPackableForInterpolationParticleParticleBurstParticleEmitterParticleSy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ModelAnimation

ModelAnimation是CesiumJS中用于控制模型动画的类。使用ModelAnimation可以实现对模型动画的播放、暂停、停止等操作。

创建ModelAnimation对象

可以通过以下方式创建ModelAnimation对象:

var modelAnimation = model.activeAnimations.get(0);

其中model是CesiumJS中的Model类的实例,activeAnimationsModel对象的属性之一,返回当前正在播放的动画列表。这里取activeAnimations列表中的第一个动画,来创建一个ModelAnimation对象。

播放动画

ModelAnimation对象中play()方法用于播放动画。可以像下面这样调用该方法:

modelAnimation.play();

暂停动画

ModelAnimation对象中pause()方法用于暂停动画。可以像下面这样调用该方法:

modelAnimation.pause();

停止动画

ModelAnimation对象中stop()方法用于停止动画。可以像下面这样调用该方法:

modelAnimation.stop();

设置动画播放速度

ModelAnimation对象中setSpeed()方法用于设置动画播放速度。可以像下面这样调用该方法:

modelAnimation.setSpeed(2.0);

在上面的例子中,将动画的播放速度设置为2.0,表示倍速播放。

获取动画播放时间

ModelAnimation对象中getCurrentTime()方法用于获取动画当前播放的时间。可以像下面这样调用该方法:

var currentTime = modelAnimation.getCurrentTime();

设置动画播放时间

ModelAnimation对象中setCurrentTime()方法用于设置动画播放的时间。可以像下面这样调用该方法:

modelAnimation.setCurrentTime(10.0);

在上面的例子中,将动画的播放时间设置为10.0秒。

监听动画播放事件

ModelAnimation对象中提供了多个事件,用于监听动画的播放过程。例如,在每次动画播放时会触发started事件,可以像下面这样添加监听器:

modelAnimation.addEventListener(Cesium.ModelAnimationEventType.STARTED, function() {
    console.log('Started!');
});

这样一来,每次动画播放时都会输出Started!

监听动画播放完成事件

ModelAnimation对象中提供了complete事件,用于监听动画播放完成的事件。可以像下面这样添加监听器:

modelAnimation.addEventListener(Cesium.ModelAnimationEventType.COMPLETE, function() {
    console.log('Complete!');
});

这样一来,动画播放完成时会输出Complete!