Cesium JS API
AppearanceArcGisMapServerImageryProviderArcGISTiledElevationTerrainProviderArcTypeAssociativeArrayAxisAxisAlignedBoundingBoxbarycentricCoordinatesBillboardBillboardCollectionBillboardGraphicsBillboardVisualizerbinarySearchbinarySearchComparatorBingMapsGeocoderServiceBingMapsImageryProviderBingMapsStyleBlendEquationBlendFunctionBlendingStateBlendOptionBoundingRectangleBoundingSphereBoxEmitterBoxGeometryBoxGeometryUpdaterBoxGraphicsBoxOutlineGeometrybuildModuleUrlCallbackPropertyCameraCameraEventAggregatorCameraEventTypeCartesian2Cartesian3Cartesian4CartographicCartographicGeocoderServiceCatmullRomSplineCesium3DTileCesium3DTileColorBlendModeCesium3DTileContentCesium3DTileFeatureCesium3DTilePointFeatureCesium3DTilesetCesium3DTilesetGraphicsCesium3DTilesetVisualizerCesium3DTileStyleCesium3DTilesVoxelProviderCesiumTerrainProviderCesiumWidgetCheckerboardMaterialPropertyCircleEmitterCircleGeometryCircleOutlineGeometryClassificationPrimitiveClassificationTypeClippingPlaneClippingPlaneCollectionClockClockRangeClockStepcloneCloudCollectionCloudTypeColorColorBlendModeColorGeometryInstanceAttributeColorMaterialPropertycombineComponentDatatypeCompositeEntityCollectionCompositeMaterialPropertyCompositePositionPropertyCompositePropertyCompressedTextureBufferConditionsExpressionConeEmitterConstantPositionPropertyConstantPropertyConstantSplineContextOptionsCoplanarPolygonGeometryCoplanarPolygonOutlineGeometryCornerTypeCorridorGeometryCorridorGeometryUpdaterCorridorGraphicsCorridorOutlineGeometrycreateElevationBandMaterialcreateElevationBandMaterialBandcreateElevationBandMaterialEntrycreateGuidcreateOsmBuildingscreateTangentSpaceDebugPrimitivecreateWorldImagerycreateWorldTerrainCreditCreditDisplayCubicRealPolynomialCullFaceCullingVolumeCumulusCloudCustomDataSourceCustomHeightmapTerrainProviderCustomShaderCustomShaderModeCustomShaderTranslucencyModeCylinderGeometryCylinderGeometryUpdaterCylinderGraphicsCylinderOutlineGeometryCzmlDataSourceDataSourceDataSourceClockDataSourceCollectionDataSourceDisplayDebugAppearanceDebugCameraPrimitiveDebugModelMatrixPrimitiveDefaultProxydefaultValuedefinedDepthFunctiondestroyObjectDeveloperErrorDirectionalLightDirectionUpDiscardEmptyTileImagePolicyDiscardMissingTileImagePolicyDistanceDisplayConditionDistanceDisplayConditionGeometryInstanceAttributeEasingFunctionEllipseGeometryEllipseGeometryUpdaterEllipseGraphicsEllipseOutlineGeometryEllipsoidEllipsoidGeodesicEllipsoidGeometryEllipsoidGeometryUpdaterEllipsoidGraphicsEllipsoidOutlineGeometryEllipsoidRhumbLineEllipsoidSurfaceAppearanceEllipsoidTangentPlaneEllipsoidTerrainProviderEntityEntityClusterEntityCollectionEntityViewEventEventHelperexcludesReverseAxisexportKmlexportKmlModelCallbackexportKmlResultKmlexportKmlResultKmzExpressionExtrapolationTypeFeatureDetectionFogformatErrorFrameRateMonitorFrustumGeometryFrustumOutlineGeometryFullscreenGeocoderServiceGeocodeTypeGeographicProjectionGeographicTilingSchemeGeoJsonDataSourceGeometryGeometryAttributeGeometryAttributesGeometryFactoryGeometryInstanceGeometryInstanceAttributeGeometryPipelineGeometryUpdaterGeometryVisualizergetAbsoluteUrigetBaseUrigetExtensionFromUriGetFeatureInfoFormatgetFilenameFromUrigetImagePixelsgetTimestampGlobeGlobeTranslucencyGoogleEarthEnterpriseImageryProviderGoogleEarthEnterpriseMapsProviderGoogleEarthEnterpriseMetadataGoogleEarthEnterpriseTerrainDataGoogleEarthEnterpriseTerrainProviderGpxDataSourceGregorianDateGridImageryProviderGridMaterialPropertyGroundGeometryUpdaterGroundPolylineGeometryGroundPolylinePrimitiveGroundPrimitiveHeadingPitchRangeHeadingPitchRollHeadingPitchRollValuesHeightmapEncodingHeightmapTerrainDataHeightReferenceHermitePolynomialApproximationHermiteSplineHilbertOrderHorizontalOriginI3SDataProviderI3SFeatureI3SFieldI3SGeometryI3SLayerI3SNodeImageBasedLightingImageMaterialPropertyImageryLayerImageryLayerCollectionImageryLayerFeatureInfoImageryProviderImageryTypesincludesReverseAxisIndexDatatypeIntersectIntersections2DIntersectionTestsIntervalIonIonGeocoderServiceIonImageryProviderIonResourceIonWorldImageryStyleisLeapYearIso8601JulianDateKeyboardEventModifierKmlCameraKmlDataSourceKmlFeatureDataKmlLookAtKmlTourKmlTourFlyToKmlTourWaitLabelLabelCollectionLabelGraphicsLabelStyleLabelVisualizerLagrangePolynomialApproximationLeapSecondLightLightingModelLinearApproximationLinearSplineMapboxImageryProviderMapboxStyleImageryProviderMapMode2DMapProjectionMaterialMaterialAppearanceMaterialSupportMaterialPropertyMathMatrix2Matrix3Matrix4mergeSortmergeSortComparatorMetadataClassMetadataClassPropertyMetadataComponentTypeMetadataEnumMetadataEnumValueMetadataSchemaMetadataTypeModelModelAnimationModelAnimationCollectionModelAnimationLoopModelFeatureModelGraphicsModelNodeModelVisualizerMoonMorphWeightSplineNearFarScalarNeverTileDiscardPolicyNodeTransformationPropertyobjectToQueryOccluderOpenCageGeocoderServiceOpenStreetMapImageryProviderOrientedBoundingBoxOrthographicFrustumOrthographicOffCenterFrustumPackableForInterpolationParticleParticleBurstParticleEmitterParticleSy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Cartographic

CartographicCesium.js 中的一个类,用于表示通过经度、纬度和海拔高度的整个地球上任意点的位置。

创建

可以通过以下方式创建 Cartographic 对象:

// 创建一个经度为3.2,纬度为4.5,高度为1000的Cartographic对象
var position = Cesium.Cartographic.fromDegrees(3.2, 4.5, 1000);

属性

Cartographic 对象有以下属性:

  • longitude - 经度,以弧度表示
  • latitude - 纬度,以弧度表示
  • height - 高度,以米为单位

可以通过以下方式访问这些属性:

// 访问Cartographic对象的经度,纬度和高度
var lon = position.longitude;
var lat = position.latitude;
var alt = position.height;

可以通过以下方式修改这些属性:

// 将Cartographic对象的经度和纬度设置为相应的值
position.longitude = Cesium.Math.toRadians(10);
position.latitude = Cesium.Math.toRadians(20);

转换

可以将 Cartographic 对象转换为其他类型的对象。以下是一些示例:

转换为笛卡尔坐标

可以将 Cartographic 对象转换为 Cartesian3 对象,该对象表示三维笛卡尔坐标。

// 将Cartographic对象转换为笛卡尔坐标
var cartesian = Cesium.Cartesian3.fromRadians(position.longitude, position.latitude, position.height);

转换为地心坐标

可以将 Cartographic 对象转换为 Cartesian3 对象,该对象表示地球表面上从中心的三维笛卡尔坐标。

// 将Cartographic对象转换为地心坐标
var center = Cesium.Cartesian3.fromElements(0, 0, 0);
var cartographic = Cesium.Cartographic.toCartesian(position, center);

转换为度数表示

可以将 Cartographic 对象的经度和纬度转换为度数表示。

// 将Cartographic对象的经度和纬度转换为度数表示
var lonDegrees = Cesium.Math.toDegrees(position.longitude);
var latDegrees = Cesium.Math.toDegrees(position.latitude);

示例

以下是一个使用 Cartographic 对象的示例:

// 创建一个经度为3.2,纬度为4.5,高度为1000的Cartographic对象
var position = Cesium.Cartographic.fromDegrees(3.2, 4.5, 1000);

// 将Cartographic对象转换为笛卡尔坐标
var cartesian = Cesium.Cartesian3.fromRadians(position.longitude, position.latitude, position.height);

// 将Cartographic对象转换为地心坐标
var center = Cesium.Cartesian3.fromElements(0, 0, 0);
var cartographic = Cesium.Cartographic.toCartesian(position, center);

// 将Cartographic对象的经度和纬度转换为度数表示
var lonDegrees = Cesium.Math.toDegrees(position.longitude);
var latDegrees = Cesium.Math.toDegrees(position.latitude);

以上是 Cartographic 的介绍和相关使用方法,希望本文档对你有所帮助。