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openlayers/master/examples/WebMercatorTilingScheme.html
Éric Lemoine 5d14b9e2d4 Updated
2013-02-20 10:38:25 +01:00

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<title>WebMercatorTilingScheme - Cesium Documentation</title>
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<ul id="ClassList"><div id="classItems"><li><a href="AnimationCollection.html">AnimationCollection</a></li><li><a href="AnimationController.html">AnimationController</a></li><li><a href="ArcGisMapServerImageryProvider.html">ArcGisMapServerImageryProvider</a></li><li><a href="AxisAlignedBoundingBox.html">AxisAlignedBoundingBox</a></li><li><a href="Billboard.html">Billboard</a></li><li><a href="BillboardCollection.html">BillboardCollection</a></li><li><a href="BingMapsImageryProvider.html">BingMapsImageryProvider</a></li><li><a href="BoundingRectangle.html">BoundingRectangle</a></li><li><a href="BoundingSphere.html">BoundingSphere</a></li><li><a href="Buffer.html">Buffer</a></li><li><a href="Camera.html">Camera</a></li><li><a href="CameraController.html">CameraController</a></li><li><a href="CameraEventAggregator.html">CameraEventAggregator</a></li><li><a href="Cartesian2.html">Cartesian2</a></li><li><a href="Cartesian3.html">Cartesian3</a></li><li><a href="Cartesian4.html">Cartesian4</a></li><li><a href="Cartographic.html">Cartographic</a></li><li><a href="CatmullRomSpline.html">CatmullRomSpline</a></li><li><a href="CentralBody.html">CentralBody</a></li><li><a href="CesiumViewerWidget.html">CesiumViewerWidget</a></li><li><a href="Clock.html">Clock</a></li><li><a href="Color.html">Color</a></li><li><a href="Command.html">Command</a></li><li><a href="CommandLists.html">CommandLists</a></li><li><a href="ComplexConicSensorVolume.html">ComplexConicSensorVolume</a></li><li><a href="CompositeDynamicObjectCollection.html">CompositeDynamicObjectCollection</a></li><li><a href="CompositePrimitive.html">CompositePrimitive</a></li><li><a href="Context.html">Context</a></li><li><a href="CubeMap.html">CubeMap</a></li><li><a href="CubeMapFace.html">CubeMapFace</a></li><li><a href="CustomSensorVolume.html">CustomSensorVolume</a></li><li><a href="DefaultProxy.html">DefaultProxy</a></li><li><a href="Deferred.html">Deferred</a></li><li><a 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href="DynamicMaterialProperty.html">DynamicMaterialProperty</a></li><li><a href="DynamicObject.html">DynamicObject</a></li><li><a href="DynamicObjectCollection.html">DynamicObjectCollection</a></li><li><a href="DynamicPath.html">DynamicPath</a></li><li><a href="DynamicPathVisualizer.html">DynamicPathVisualizer</a></li><li><a href="DynamicPoint.html">DynamicPoint</a></li><li><a href="DynamicPointVisualizer.html">DynamicPointVisualizer</a></li><li><a href="DynamicPolygon.html">DynamicPolygon</a></li><li><a href="DynamicPolygonVisualizer.html">DynamicPolygonVisualizer</a></li><li><a href="DynamicPolyline.html">DynamicPolyline</a></li><li><a href="DynamicPolylineVisualizer.html">DynamicPolylineVisualizer</a></li><li><a href="DynamicPositionProperty.html">DynamicPositionProperty</a></li><li><a href="DynamicProperty.html">DynamicProperty</a></li><li><a href="DynamicPyramid.html">DynamicPyramid</a></li><li><a href="DynamicPyramidVisualizer.html">DynamicPyramidVisualizer</a></li><li><a href="DynamicVertexPositionsProperty.html">DynamicVertexPositionsProperty</a></li><li><a href="Ellipsoid.html">Ellipsoid</a></li><li><a href="EllipsoidalOccluder.html">EllipsoidalOccluder</a></li><li><a href="EllipsoidPrimitive.html">EllipsoidPrimitive</a></li><li><a href="EllipsoidTangentPlane.html">EllipsoidTangentPlane</a></li><li><a href="EncodedCartesian3.html">EncodedCartesian3</a></li><li><a href="Enumeration.html">Enumeration</a></li><li><a href="Event.html">Event</a></li><li><a href="Extent.html">Extent</a></li><li><a href="Framebuffer.html">Framebuffer</a></li><li><a href="FrameState.html">FrameState</a></li><li><a href="FrustumCommands.html">FrustumCommands</a></li><li><a href="GeographicProjection.html">GeographicProjection</a></li><li><a href="GeographicTilingScheme.html">GeographicTilingScheme</a></li><li><a href="GregorianDate.html">GregorianDate</a></li><li><a href="HermiteSpline.html">HermiteSpline</a></li><li><a href="ImageryLayer.html">ImageryLayer</a></li><li><a href="ImageryLayerCollection.html">ImageryLayerCollection</a></li><li><a href="ImageryProvider.html">ImageryProvider</a></li><li><a href="Interval.html">Interval</a></li><li><a href="JulianDate.html">JulianDate</a></li><li><a href="Label.html">Label</a></li><li><a href="LabelCollection.html">LabelCollection</a></li><li><a href="LeapSecond.html">LeapSecond</a></li><li><a href="Material.html">Material</a></li><li><a href="Matrix2.html">Matrix2</a></li><li><a href="Matrix3.html">Matrix3</a></li><li><a href="Matrix4.html">Matrix4</a></li><li><a href="NeverTileDiscardPolicy.html">NeverTileDiscardPolicy</a></li><li><a href="Occluder.html">Occluder</a></li><li><a href="OpenStreetMapImageryProvider.html">OpenStreetMapImageryProvider</a></li><li><a href="OrientationInterpolator.html">OrientationInterpolator</a></li><li><a href="OrthographicFrustum.html">OrthographicFrustum</a></li><li><a href="PerformanceDisplay.html">PerformanceDisplay</a></li><li><a href="PerspectiveFrustum.html">PerspectiveFrustum</a></li><li><a href="PerspectiveOffCenterFrustum.html">PerspectiveOffCenterFrustum</a></li><li><a href="PickFramebuffer.html">PickFramebuffer</a></li><li><a href="Polygon.html">Polygon</a></li><li><a href="Polyline.html">Polyline</a></li><li><a href="PolylineCollection.html">PolylineCollection</a></li><li><a href="Promise.html">Promise</a></li><li><a href="Quaternion.html">Quaternion</a></li><li><a href="Queue.html">Queue</a></li><li><a href="Ray.html">Ray</a></li><li><a href="RectangularPyramidSensorVolume.html">RectangularPyramidSensorVolume</a></li><li><a href="ReferenceProperty.html">ReferenceProperty</a></li><li><a href="RequestErrorEvent.html">RequestErrorEvent</a></li><li><a href="RuntimeError.html">RuntimeError</a></li><li><a href="Scene.html">Scene</a></li><li><a href="SceneTransitioner.html">SceneTransitioner</a></li><li><a href="ScreenSpaceCameraController.html">ScreenSpaceCameraController</a></li><li><a href="ScreenSpaceEventHandler.html">ScreenSpaceEventHandler</a></li><li><a href="SensorVolumeCollection.html">SensorVolumeCollection</a></li><li><a href="ShaderCache.html">ShaderCache</a></li><li><a href="ShaderProgram.html">ShaderProgram</a></li><li><a href="SingleTileImageryProvider.html">SingleTileImageryProvider</a></li><li><a href="SkyAtmosphere.html">SkyAtmosphere</a></li><li><a href="SkyBox.html">SkyBox</a></li><li><a href="Spherical.html">Spherical</a></li><li><a href="TaskProcessor.html">TaskProcessor</a></li><li><a href="Texture.html">Texture</a></li><li><a href="Texture2DPool.html">Texture2DPool</a></li><li><a href="TextureAtlas.html">TextureAtlas</a></li><li><a href="TextureAtlasBuilder.html">TextureAtlasBuilder</a></li><li><a href="TileDiscardPolicy.html">TileDiscardPolicy</a></li><li><a href="TileMapServiceImageryProvider.html">TileMapServiceImageryProvider</a></li><li><a href="TilingScheme.html">TilingScheme</a></li><li><a href="TimeInterval.html">TimeInterval</a></li><li><a href="TimeIntervalCollection.html">TimeIntervalCollection</a></li><li><a href="Uniform.html">Uniform</a></li><li><a href="UniformArray.html">UniformArray</a></li><li><a href="UniformState.html">UniformState</a></li><li><a href="VertexArray.html">VertexArray</a></li><li><a href="VertexArrayFacade.html">VertexArrayFacade</a></li><li><a href="ViewportQuad.html">ViewportQuad</a></li><li><a href="VisualizerCollection.html">VisualizerCollection</a></li><li><a href="WebMapServiceImageryProvider.html">WebMapServiceImageryProvider</a></li><li><a href="WebMercatorProjection.html">WebMercatorProjection</a></li><li><a href="WebMercatorTilingScheme.html">WebMercatorTilingScheme</a></li><li><a href="binarySearch.html">binarySearch</a></li><li><a href="BingMapsStyle.html">BingMapsStyle</a></li><li><a href="BlendEquation.html">BlendEquation</a></li><li><a href="BlendFunction.html">BlendFunction</a></li><li><a href="BlendingState.html">BlendingState</a></li><li><a href="BoxTessellator.html">BoxTessellator</a></li><li><a href="BufferUsage.html">BufferUsage</a></li><li><a href="CameraColumbusViewMode.html">CameraColumbusViewMode</a></li><li><a href="CameraEventType.html">CameraEventType</a></li><li><a href="CameraFlightPath.html">CameraFlightPath</a></li><li><a href="CesiumMath.html">CesiumMath</a></li><li><a href="ClockRange.html">ClockRange</a></li><li><a href="ClockStep.html">ClockStep</a></li><li><a href="combine.html">combine</a></li><li><a href="computeSunPosition.html">computeSunPosition</a></li><li><a href="createGuid.html">createGuid</a></li><li><a href="createTaskProcessorWorker.html">createTaskProcessorWorker</a></li><li><a href="CubeMapEllipsoidTessellator.html">CubeMapEllipsoidTessellator</a></li><li><a href="CubicRealPolynomial.html">CubicRealPolynomial</a></li><li><a href="CullFace.html">CullFace</a></li><li><a href="CzmlBoolean.html">CzmlBoolean</a></li><li><a href="CzmlCartesian2.html">CzmlCartesian2</a></li><li><a href="CzmlCartesian3.html">CzmlCartesian3</a></li><li><a href="CzmlCartographic.html">CzmlCartographic</a></li><li><a href="CzmlColor.html">CzmlColor</a></li><li><a href="CzmlDefaults.html">CzmlDefaults</a></li><li><a href="CzmlHorizontalOrigin.html">CzmlHorizontalOrigin</a></li><li><a href="CzmlImage.html">CzmlImage</a></li><li><a href="CzmlLabelStyle.html">CzmlLabelStyle</a></li><li><a href="CzmlNumber.html">CzmlNumber</a></li><li><a href="CzmlString.html">CzmlString</a></li><li><a href="CzmlUnitCartesian3.html">CzmlUnitCartesian3</a></li><li><a href="CzmlUnitQuaternion.html">CzmlUnitQuaternion</a></li><li><a href="CzmlUnitSpherical.html">CzmlUnitSpherical</a></li><li><a href="CzmlVerticalOrigin.html">CzmlVerticalOrigin</a></li><li><a href="defaultValue.html">defaultValue</a></li><li><a href="DepthFunction.html">DepthFunction</a></li><li><a href="destroyObject.html">destroyObject</a></li><li><a href="ExtentTessellator.html">ExtentTessellator</a></li><li><a href="FAR.html">FAR</a></li><li><a href="FeatureDetection.html">FeatureDetection</a></li><li><a href="freezeObject.html">freezeObject</a></li><li><a href="Fullscreen.html">Fullscreen</a></li><li><a href="getImagePixels.html">getImagePixels</a></li><li><a href="HermitePolynomialApproximation.html">HermitePolynomialApproximation</a></li><li><a href="HorizontalOrigin.html">HorizontalOrigin</a></li><li><a href="IndexDatatype.html">IndexDatatype</a></li><li><a href="Intersect.html">Intersect</a></li><li><a href="IntersectionTests.html">IntersectionTests</a></li><li><a href="Iso8601.html">Iso8601</a></li><li><a href="jsonp.html">jsonp</a></li><li><a href="KeyboardEventModifier.html">KeyboardEventModifier</a></li><li><a href="LabelStyle.html">LabelStyle</a></li><li><a href="LagrangePolynomialApproximation.html">LagrangePolynomialApproximation</a></li><li><a href="LinearApproximation.html">LinearApproximation</a></li><li><a href="loadArrayBuffer.html">loadArrayBuffer</a></li><li><a href="loadCubeMap.html">loadCubeMap</a></li><li><a href="loadImage.html">loadImage</a></li><li><a href="loadJson.html">loadJson</a></li><li><a href="loadText.html">loadText</a></li><li><a href="loadXML.html">loadXML</a></li><li><a href="MeshFilters.html">MeshFilters</a></li><li><a href="MipmapHint.html">MipmapHint</a></li><li><a href="PixelDatatype.html">PixelDatatype</a></li><li><a href="PixelFormat.html">PixelFormat</a></li><li><a href="PlaneTessellator.html">PlaneTessellator</a></li><li><a href="pointInsideTriangle2D.html">pointInsideTriangle2D</a></li><li><a href="PolygonPipeline.html">PolygonPipeline</a></li><li><a href="PolylinePipeline.html">PolylinePipeline</a></li><li><a href="PrimitiveType.html">PrimitiveType</a></li><li><a href="processCzml.html">processCzml</a></li><li><a href="Projections.html">Projections</a></li><li><a href="QuadraticRealPolynomial.html">QuadraticRealPolynomial</a></li><li><a href="QuarticRealPolynomial.html">QuarticRealPolynomial</a></li><li><a href="RenderbufferFormat.html">RenderbufferFormat</a></li><li><a href="requestAnimationFrame.html">requestAnimationFrame</a></li><li><a href="SceneMode.html">SceneMode</a></li><li><a href="ScreenSpaceEventType.html">ScreenSpaceEventType</a></li><li><a href="Shapes.html">Shapes</a></li><li><a href="StencilFunction.html">StencilFunction</a></li><li><a href="StencilOperation.html">StencilOperation</a></li><li><a href="TextureMagnificationFilter.html">TextureMagnificationFilter</a></li><li><a href="TextureMinificationFilter.html">TextureMinificationFilter</a></li><li><a href="TextureWrap.html">TextureWrap</a></li><li><a href="TimeConstants.html">TimeConstants</a></li><li><a href="TimeStandard.html">TimeStandard</a></li><li><a href="Tipsify.html">Tipsify</a></li><li><a href="Transforms.html">Transforms</a></li><li><a href="TridiagonalSystemSolver.html">TridiagonalSystemSolver</a></li><li><a href="UniformDatatype.html">UniformDatatype</a></li><li><a href="VertexLayout.html">VertexLayout</a></li><li><a href="VerticalOrigin.html">VerticalOrigin</a></li><li><a href="Visibility.html">Visibility</a></li><li><a href="WindingOrder.html">WindingOrder</a></li><li><a href="ComponentDatatype.html">ComponentDatatype</a></li></div><div id="glslItems"><li><a href="czm_cellular.html">czm_cellular</a></li><li><a href="czm_columbusView.html">czm_columbusView</a></li><li><a href="czm_columbusViewMorph.html">czm_columbusViewMorph</a></li><li><a href="czm_complement.html">czm_complement</a></li><li><a href="czm_cone.html">czm_cone</a></li><li><a href="czm_coneContainsPoint.html">czm_coneContainsPoint</a></li><li><a href="czm_degreesPerRadian.html">czm_degreesPerRadian</a></li><li><a href="czm_eastNorthUpToEyeCoordinates.html">czm_eastNorthUpToEyeCoordinates</a></li><li><a href="czm_ellipsoid.html">czm_ellipsoid</a></li><li><a href="czm_ellipsoidContainsPoint.html">czm_ellipsoidContainsPoint</a></li><li><a href="czm_ellipsoidNew.html">czm_ellipsoidNew</a></li><li><a href="czm_ellipsoidSilhouetteCone.html">czm_ellipsoidSilhouetteCone</a></li><li><a href="czm_ellipsoidSilhouetteConeNew.html">czm_ellipsoidSilhouetteConeNew</a></li><li><a href="czm_ellipsoidSilhouetteConeNormal.html">czm_ellipsoidSilhouetteConeNormal</a></li><li><a href="czm_ellipsoidSilhouetteHalfspace.html">czm_ellipsoidSilhouetteHalfspace</a></li><li><a href="czm_ellipsoidSilhouetteHalfspaceNew.html">czm_ellipsoidSilhouetteHalfspaceNew</a></li><li><a href="czm_ellipsoidWgs84TextureCoordinates.html">czm_ellipsoidWgs84TextureCoordinates</a></li><li><a href="czm_emptyRaySegment.html">czm_emptyRaySegment</a></li><li><a href="czm_encodedCameraPositionMCHigh.html">czm_encodedCameraPositionMCHigh</a></li><li><a href="czm_encodedCameraPositionMCLow.html">czm_encodedCameraPositionMCLow</a></li><li><a href="czm_entireFrustum.html">czm_entireFrustum</a></li><li><a href="czm_epsilon1.html">czm_epsilon1</a></li><li><a href="czm_epsilon2.html">czm_epsilon2</a></li><li><a href="czm_epsilon3.html">czm_epsilon3</a></li><li><a href="czm_epsilon4.html">czm_epsilon4</a></li><li><a href="czm_epsilon5.html">czm_epsilon5</a></li><li><a href="czm_epsilon6.html">czm_epsilon6</a></li><li><a href="czm_epsilon7.html">czm_epsilon7</a></li><li><a href="czm_equalsEpsilon.html">czm_equalsEpsilon</a></li><li><a href="czm_eyeOffset.html">czm_eyeOffset</a></li><li><a href="czm_eyeToWindowCoordinates.html">czm_eyeToWindowCoordinates</a></li><li><a href="czm_frameNumber.html">czm_frameNumber</a></li><li><a href="czm_fullRaySegment.html">czm_fullRaySegment</a></li><li><a href="czm_geodeticSurfaceNormal.html">czm_geodeticSurfaceNormal</a></li><li><a href="czm_getDefaultMaterial.html">czm_getDefaultMaterial</a></li><li><a href="czm_getWgs84EllipsoidEC.html">czm_getWgs84EllipsoidEC</a></li><li><a href="czm_halfspace.html">czm_halfspace</a></li><li><a href="czm_infiniteProjection.html">czm_infiniteProjection</a></li><li><a href="czm_infinity.html">czm_infinity</a></li><li><a href="czm_insertAt.html">czm_insertAt</a></li><li><a href="czm_intersection.html">czm_intersection</a></li><li><a href="czm_inverseModel.html">czm_inverseModel</a></li><li><a href="czm_inverseModelView.html">czm_inverseModelView</a></li><li><a href="czm_inverseNormal.html">czm_inverseNormal</a></li><li><a href="czm_inverseProjection.html">czm_inverseProjection</a></li><li><a href="czm_inverseView.html">czm_inverseView</a></li><li><a href="czm_inverseViewRotation.html">czm_inverseViewRotation</a></li><li><a href="czm_isEmpty.html">czm_isEmpty</a></li><li><a href="czm_isFull.html">czm_isFull</a></li><li><a href="czm_latitudeToWebMercatorFraction.html">czm_latitudeToWebMercatorFraction</a></li><li><a href="czm_luminance.html">czm_luminance</a></li><li><a href="czm_material.html">czm_material</a></li><li><a href="czm_materialInput.html">czm_materialInput</a></li><li><a href="czm_model.html">czm_model</a></li><li><a href="czm_modelToWindowCoordinates.html">czm_modelToWindowCoordinates</a></li><li><a href="czm_modelView.html">czm_modelView</a></li><li><a href="czm_modelViewInfiniteProjection.html">czm_modelViewInfiniteProjection</a></li><li><a href="czm_modelViewProjection.html">czm_modelViewProjection</a></li><li><a href="czm_modelViewProjectionRelativeToEye.html">czm_modelViewProjectionRelativeToEye</a></li><li><a href="czm_modelViewRelativeToEye.html">czm_modelViewRelativeToEye</a></li><li><a href="czm_moonDirectionEC.html">czm_moonDirectionEC</a></li><li><a href="czm_morphing.html">czm_morphing</a></li><li><a href="czm_multiplyWithColorBalance.html">czm_multiplyWithColorBalance</a></li><li><a href="czm_normal.html">czm_normal</a></li><li><a href="czm_oneOverPi.html">czm_oneOverPi</a></li><li><a href="czm_oneOverTwoPi.html">czm_oneOverTwoPi</a></li><li><a href="czm_phong.html">czm_phong</a></li><li><a href="czm_pi.html">czm_pi</a></li><li><a href="czm_piOverFour.html">czm_piOverFour</a></li><li><a href="czm_piOverSix.html">czm_piOverSix</a></li><li><a href="czm_piOverThree.html">czm_piOverThree</a></li><li><a href="czm_piOverTwo.html">czm_piOverTwo</a></li><li><a href="czm_pointAlongRay.html">czm_pointAlongRay</a></li><li><a href="czm_projection.html">czm_projection</a></li><li><a href="czm_quadraticRealPolynomialRealRoots.html">czm_quadraticRealPolynomialRealRoots</a></li><li><a href="czm_quadraticRoots.html">czm_quadraticRoots</a></li><li><a href="czm_radiansPerDegree.html">czm_radiansPerDegree</a></li><li><a href="czm_ray.html">czm_ray</a></li><li><a href="czm_rayConeIntersectionInterval.html">czm_rayConeIntersectionInterval</a></li><li><a href="czm_rayConeIntersectNormal.html">czm_rayConeIntersectNormal</a></li><li><a href="czm_rayEllipsoidIntersectionInterval.html">czm_rayEllipsoidIntersectionInterval</a></li><li><a href="czm_rayEllipsoidSilhouetteConeIntersectionInterval.html">czm_rayEllipsoidSilhouetteConeIntersectionInterval</a></li><li><a href="czm_rayEllipsoidSilhouetteHalfspaceIntersectionInterval.html">czm_rayEllipsoidSilhouetteHalfspaceIntersectionInterval</a></li><li><a href="czm_rayHalfspaceIntersectionInterval.html">czm_rayHalfspaceIntersectionInterval</a></li><li><a href="czm_raySegment.html">czm_raySegment</a></li><li><a href="czm_raySegmentCollection.html">czm_raySegmentCollection</a></li><li><a href="czm_raySegmentCollectionCapacity.html">czm_raySegmentCollectionCapacity</a></li><li><a href="czm_raySegmentCollectionNew.html">czm_raySegmentCollectionNew</a></li><li><a href="czm_raySphereIntersectionInterval.html">czm_raySphereIntersectionInterval</a></li><li><a href="czm_removeAt.html">czm_removeAt</a></li><li><a href="czm_scene2D.html">czm_scene2D</a></li><li><a href="czm_scene3D.html">czm_scene3D</a></li><li><a href="czm_snoise.html">czm_snoise</a></li><li><a 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<div id="main">
<h1 class="page-title">WebMercatorTilingScheme</h1>
<section>
<header>
<h2>
WebMercatorTilingScheme
</h2>
</header>
<article>
<div class="container-overview">
<dt>
<h4 class="name" id="WebMercatorTilingScheme"><span class="type-signature"></span>new WebMercatorTilingScheme</h4>
</dt>
<dd>
<p class="description">
A tiling scheme for geometry referenced to a <a href="WebMercatorProjection.html">WebMercatorProjection</a>, EPSG:3857. This is
the tiling scheme used by Google Maps, Microsoft Bing Maps, and most of ESRI ArcGIS Online.
</p>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Argument</th>
<th>Default</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>description.ellipsoid</code></td>
<td class="type">
<a href="Ellipsoid.html">Ellipsoid</a>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
Ellipsoid.WGS84
</td>
<td class="description last">The ellipsoid whose surface is being tiled. Defaults to
the WGS84 ellipsoid.</td>
</tr>
<tr>
<td class="name"><code>description.numberOfLevelZeroTilesX</code></td>
<td class="type">
Number
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
1
</td>
<td class="description last">The number of tiles in the X direction at level zero of
the tile tree.</td>
</tr>
<tr>
<td class="name"><code>description.numberOfLevelZeroTilesY</code></td>
<td class="type">
Number
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
1
</td>
<td class="description last">The number of tiles in the Y direction at level zero of
the tile tree.</td>
</tr>
<tr>
<td class="name"><code>description.extentSouthwestInMeters</code></td>
<td class="type">
<a href="Cartesian2.html">Cartesian2</a>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
</td>
<td class="description last">The southwest corner of the extent covered by the
tiling scheme, in meters. If this parameter or extentNortheastInMeters is not specified, the entire
globe is covered in the longitude direction and an equal distance is covered in the latitude
direction, resulting in a square projection.</td>
</tr>
<tr>
<td class="name"><code>description.extentNortheastInMeters</code></td>
<td class="type">
<a href="Cartesian2.html">Cartesian2</a>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="default">
</td>
<td class="description last">The northeast corner of the extent covered by the
tiling scheme, in meters. If this parameter or extentSouthwestInMeters is not specified, the entire
globe is covered in the longitude direction and an equal distance is covered in the latitude
direction, resulting in a square projection.</td>
</tr>
</tbody>
</table>
<dl class="details">
<!--
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>../../Source/Scene/WebMercatorTilingScheme.js, line 46</li></ul></dd>
-->
</dl>
<div class="hr"></div>
</dd>
</div>
<h3 class="subsection-title">Methods</h3>
<dl>
<dt>
<h4 class="name" id="createLevelZeroTiles"><span class="type-signature"></span>createLevelZeroTiles</h4>
</dt>
<dd>
<p class="description">
Creates the tile or tiles at level of detail zero, the coarsest, least detailed level.
</p>
<h5>Returns:</h5>
<div class="param-desc">
<span class="param-type">Array</span>
An array containing the tiles at level of detail zero, starting with the
tile in the northwest corner of the globe and followed by the tile (if any) to its east.
</div>
<dl class="details">
<!--
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>../../Source/Scene/WebMercatorTilingScheme.js, line 136</li></ul></dd>
-->
</dl>
<div class="hr"></div>
</dd>
<dt>
<h4 class="name" id="extentToNativeExtent"><span class="type-signature"></span>extentToNativeExtent</h4>
</dt>
<dd>
<p class="description">
Transforms an extent specified in geodetic radians to the native coordinate system
of this tiling scheme.
</p>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Argument</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>extent</code></td>
<td class="type">
<a href="Extent.html">Extent</a>
</td>
<td class="attributes">
</td>
<td class="description last">The extent to transform.</td>
</tr>
<tr>
<td class="name"><code>result</code></td>
<td class="type">
<a href="Extent.html">Extent</a>
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="description last">The instance to which to copy the result, or undefined if a new instance
should be created.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
<span class="param-type"><a href="Extent.html">Extent</a></span>
The specified 'result', or a new object containing the native extent if 'result'
is undefined.
</div>
<dl class="details">
<!--
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>../../Source/Scene/WebMercatorTilingScheme.js, line 152</li></ul></dd>
-->
</dl>
<div class="hr"></div>
</dd>
<dt>
<h4 class="name" id="getEllipsoid"><span class="type-signature"></span>getEllipsoid</h4>
</dt>
<dd>
<p class="description">
Gets the ellipsoid that is tiled by this tiling scheme.
</p>
<h5>Returns:</h5>
<div class="param-desc">
<span class="param-type"><a href="Ellipsoid.html">Ellipsoid</a></span>
The ellipsoid.
</div>
<dl class="details">
<!--
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>../../Source/Scene/WebMercatorTilingScheme.js, line 78</li></ul></dd>
-->
</dl>
<div class="hr"></div>
</dd>
<dt>
<h4 class="name" id="getExtent"><span class="type-signature"></span>getExtent</h4>
</dt>
<dd>
<p class="description">
Gets the extent, in radians, covered by this tiling scheme.
</p>
<h5>Returns:</h5>
<div class="param-desc">
<span class="param-type"><a href="Extent.html">Extent</a></span>
The extent.
</div>
<dl class="details">
<!--
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>../../Source/Scene/WebMercatorTilingScheme.js, line 89</li></ul></dd>
-->
</dl>
<div class="hr"></div>
</dd>
<dt>
<h4 class="name" id="getNumberOfXTilesAtLevel"><span class="type-signature"></span>getNumberOfXTilesAtLevel</h4>
</dt>
<dd>
<p class="description">
Gets the total number of tiles in the X direction at a specified level-of-detail.
</p>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>level</code></td>
<td class="type">
Number
</td>
<td class="description last">The level-of-detail.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
<span class="param-type">Number</span>
The number of tiles in the X direction at the given level.
</div>
<dl class="details">
<!--
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>../../Source/Scene/WebMercatorTilingScheme.js, line 112</li></ul></dd>
-->
</dl>
<div class="hr"></div>
</dd>
<dt>
<h4 class="name" id="getNumberOfYTilesAtLevel"><span class="type-signature"></span>getNumberOfYTilesAtLevel</h4>
</dt>
<dd>
<p class="description">
Gets the total number of tiles in the Y direction at a specified level-of-detail.
</p>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>level</code></td>
<td class="type">
Number
</td>
<td class="description last">The level-of-detail.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
<span class="param-type">Number</span>
The number of tiles in the Y direction at the given level.
</div>
<dl class="details">
<!--
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>../../Source/Scene/WebMercatorTilingScheme.js, line 124</li></ul></dd>
-->
</dl>
<div class="hr"></div>
</dd>
<dt>
<h4 class="name" id="getProjection"><span class="type-signature"></span>getProjection</h4>
</dt>
<dd>
<p class="description">
Gets the map projection used by this tiling scheme.
</p>
<h5>Returns:</h5>
<div class="param-desc">
<span class="param-type">Projection</span>
The map projection.
</div>
<dl class="details">
<!--
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>../../Source/Scene/WebMercatorTilingScheme.js, line 100</li></ul></dd>
-->
</dl>
<div class="hr"></div>
</dd>
<dt>
<h4 class="name" id="tileXYToNativeExtent"><span class="type-signature"></span>tileXYToNativeExtent</h4>
</dt>
<dd>
<p class="description">
Converts tile x, y coordinates and level to an extent expressed in the native coordinates
of the tiling scheme.
</p>
<h5>Parameters:</h5>
<table class="params">
<thead>
<tr>
<th>Name</th>
<th>Type</th>
<th>Argument</th>
<th class="last">Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="name"><code>x</code></td>
<td class="type">
Number
</td>
<td class="attributes">
</td>
<td class="description last">The integer x coordinate of the tile.</td>
</tr>
<tr>
<td class="name"><code>y</code></td>
<td class="type">
Number
</td>
<td class="attributes">
</td>
<td class="description last">The integer y coordinate of the tile.</td>
</tr>
<tr>
<td class="name"><code>level</code></td>
<td class="type">
Number
</td>
<td class="attributes">
</td>
<td class="description last">The tile level-of-detail. Zero is the least detailed.</td>
</tr>
<tr>
<td class="name"><code>result</code></td>
<td class="type">
Object
</td>
<td class="attributes">
&lt;optional><br>
</td>
<td class="description last">The instance to which to copy the result, or undefined if a new instance
should be created.</td>
</tr>
</tbody>
</table>
<h5>Returns:</h5>
<div class="param-desc">
<span class="param-type"><a href="Extent.html">Extent</a></span>
The specified 'result', or a new object containing the extent
if 'result' is undefined.
</div>
<dl class="details">
<!--
<dt class="tag-source">Source:</dt>
<dd class="tag-source"><ul class="dummy"><li>../../Source/Scene/WebMercatorTilingScheme.js, line 183</li></ul></dd>
-->
</dl>
<div class="hr"></div>
</dd>
</dl>
</article>
</section>
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Documentation generated by <a href="https://github.com/micmath/jsdoc">JSDoc 3</a> on Fri Jan 18 2013 11:24:31 GMT-0500 (EST)
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