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Change Log

Beta Releases

b11 - 12/03/2012

  • Breaking changes:
    • Widget render loop now started by default. Startup code changed, see Sandcastle examples.
    • Changed Timeline.makeLabel to take a JulianDate instead of a JavaScript date parameter.
    • Default Earth imagery has been moved to a new package Assets. Images used by Sandcastle examples have been moved to the Sandcastle folder, and images used by the Dojo widgets are now self-contained in the Widgets package.
    • positionToEyeEC in czm_materialInput is no longer normalized by default.
    • FullScreen and related functions have been renamed to Fullscreen to match the W3C standard name.
    • Fullscreen.isFullscreenEnabled was incorrectly implemented in certain browsers. isFullscreenEnabled now correctly determines whether the browser will allow an element to go fullscreen. A new isFullscreen function is available to determine if the browser is currently in fullscreen mode.
    • Fullscreen.getFullScreenChangeEventName and Fullscreen.getFullScreenChangeEventName now return the proper event name, suitable for use with the addEventListener API, instead prefixing them with "on".
    • Removed Scene.setSunPosition and Scene.getSunPosition. The sun position used for lighting is automatically computed based on the scene's time.
    • Removed a number of rendering options from CentralBody, including the ground atmosphere, night texture, specular map, cloud map, cloud shadows, and bump map. These features weren't really production ready and had a disproportionate cost in terms of shader complexity and compilation time. They may return in a more polished form in a future release.
    • Removed affectedByLighting property from Polygon, EllipsoidPrimitive, RectangularPyramidSensorVolume, CustomSensorVolume, and ComplexConicSensorVolume.
    • Removed DistanceIntervalMaterial. This was not documented.
    • Matrix2.getElementIndex, Matrix3.getElementIndex, and Matrix4.getElementIndex functions have had their parameters swapped and now take row first and column second. This is consistent with other class constants, such as Matrix2.COLUMN1ROW2.
    • Replaced CentralBody.showSkyAtmosphere with Scene.skyAtmosphere and SkyAtmosphere. This has no impact for those using the Cesium widget.
  • Improved lighting in Columbus view and on polygons, ellipsoids, and sensors.
  • Fixed atmosphere rendering artifacts and improved Columbus view transition.
  • Fixed jitter artifacts with billboards and polylines.
  • Added TileMapServiceImageryProvider. See the Imagery Layers Sandcastle example.
  • Added Water material. See the Materials Sandcastle example.
  • Added SkyBox to draw stars. Added CesiumWidget.showSkyBox and CesiumViewerWidget.showSkyBox.
  • Added new Matrix4 functions: Matrix4.multiplyByTranslation, multiplyByPoint, and Matrix4.fromScale. Added Matrix3.fromScale.
  • Added EncodedCartesian3, which is used to eliminate jitter when drawing primitives.
  • Added new automatic GLSL uniforms: czm_frameNumber, czm_temeToPseudoFixed, czm_entireFrustum, czm_inverseModel, czm_modelViewRelativeToEye, czm_modelViewProjectionRelativeToEye, czm_encodedCameraPositionMCHigh, and czm_encodedCameraPositionMCLow.
  • Added czm_translateRelativeToEye and czm_luminance GLSL functions.
  • Added shininess to czm_materialInput.
  • Added QuadraticRealPolynomial, CubicRealPolynomial, and QuarticRealPolynomial for finding the roots of quadratic, cubic, and quartic polynomials.
  • Added IntersectionTests.grazingAltitudeLocation for finding a point on a ray nearest to an ellipsoid.
  • Added mostOrthogonalAxis function to Cartesian2, Cartesian3, and Cartesian4.
  • Changed CesiumViewerWidget default behavior so that zooming to an object now requires a single left-click, rather than a double-click.
  • Updated third-party Tween.js.

b10 - 11/02/2012

  • Breaking changes:
    • Renamed Texture2DPool to TexturePool.
    • Renamed BingMapsTileProvider to BingMapsImageryProvider.
    • Renamed SingleTileProvider to SingleTileImageryProvider.
    • Renamed ArcGISTileProvider to ArcGisMapServerImageryProvider.
    • Renamed EquidistantCylindrdicalProjection to GeographicProjection.
    • Renamed MercatorProjection to WebMercatorProjection.
    • CentralBody.dayTileProvider has been removed. Instead, add one or more imagery providers to the collection returned by CentralBody.getImageryLayers().
    • The description.generateTextureCoords parameter passed to ExtentTessellator.compute is now called description.generateTextureCoordinates.
    • Renamed bringForward, sendBackward, bringToFront, and sendToBack methods on CompositePrimitive to raise, lower, raiseToTop, and lowerToBottom, respectively.
    • Cache and CachePolicy are no longer used and have been removed.
    • Fixed problem with Dojo widget startup, and removed "postSetup" callback in the process. See Sandcastle examples and update your startup code.
  • CentralBody now allows imagery from multiple sources to be layered and alpha blended on the globe. See the new Imagery Layers and Map Projections Sandcastle examples.
  • Added WebMapServiceImageryProvider.
  • Improved middle mouse click behavior to always tilt in the same direction.
  • Added getElementIndex to Matrix2, Matrix3, and Matrix4.

b9 - 10/01/2012

  • Breaking changes:
    • Removed the render and renderForPick functions of primitives. The primitive update function updates a list of commands for the renderer. For more details, see the Data Driven Renderer.
    • Removed Context.getViewport and Context.setViewport. The viewport defaults to the size of the canvas if a primitive does not override the viewport property in the render state.
    • shallowEquals has been removed.
    • Passing undefined to any of the set functions on Billboard now throws an exception.
    • Passing undefined to any of the set functions on Polyline now throws an exception.
    • PolygonPipeline.scaleToGeodeticHeight now takes ellipsoid as the last parameter, instead of the first. It also now defaults to Ellipsoid.WGS84 if no parameter is provided.
  • The new Sandcastle live editor and demo gallery replace the Sandbox and Skeleton examples.
  • Improved picking performance and accuracy.
  • Added EllipsoidPrimitive for visualizing ellipsoids and spheres. Currently, this is only supported in 3D, not 2D or Columbus view.
  • Added DynamicEllipsoid and DynamicEllipsoidVisualizer which use the new EllipsoidPrimitive to implement ellipsoids in CZML.
  • Extent functions now take optional result parameters. Also added getCenter, intersectWith, and contains functions.
  • Add new utility class, DynamicObjectView for tracking a DynamicObject with the camera across scene modes; also hooked up CesiumViewerWidget to use it.
  • Added enableTranslate, enableZoom, and enableRotate properties to Camera2DController to selectively toggle camera behavior. All values default to true.
  • Added Camera2DController.setPositionCartographic to simplify moving the camera programmatically when in 2D mode.
  • Improved near/far plane distances and eliminated z-fighting.
  • Added Matrix4.multiplyByTranslation, Matrix4.fromScale, and Matrix3.fromScale.

b8 - 09/05/2012

  • Breaking changes:

    • Materials are now created through a centralized Material class using a JSON schema called Fabric. For example, change:

      polygon.material = new BlobMaterial({repeat : 10.0});


      polygon.material = Material.fromType(context, 'Blob');
      polygon.material.repeat = 10.0;


      polygon.material = new Material({
          context : context,
          fabric : {
              type : 'Blob',
              uniforms : {
                  repeat : 10.0
    • Label.computeScreenSpacePosition now requires the current scene state as a parameter.
    • Passing undefined to any of the set functions on Label now throws an exception.
    • Renamed agi_ prefix on GLSL identifiers to czm_.
    • Replaced ViewportQuad properties vertexShader and fragmentShader with optional constructor arguments.
    • Changed the GLSL automatic uniform czm_viewport from an ivec4 to a vec4 to reduce casting.
    • Billboard now defaults to an image index of -1 indicating no texture, previously billboards defaulted to 0 indicating the first texture in the atlas. For example, change:

          position : { x : 1.0, y : 2.0, z : 3.0 },


          position : { x : 1.0, y : 2.0, z : 3.0 },
          imageIndex : 0
    • Renamed SceneState to FrameState.
    • SunPosition was changed from a static object to a function computeSunPosition; which now returns a Cartesian3 with the computed position. It was also optimized for performance and memory pressure. For example, change:

      var result = SunPosition.compute(date);
      var position = result.position;


      var position = computeSunPosition(date);
  • All Quaternion operations now have static versions that work with any objects exposing x, y, z and w properties.

  • Added support for nested polygons with holes. See Polygon.configureFromPolygonHierarchy.
  • Added support to the renderer for view frustum and central body occlusion culling. All built-in primitives, such as BillboardCollection, Polygon, PolylineCollection, etc., can be culled. See the advanced examples in the Sandbox for details.
  • Added writeTextToCanvas function which handles sizing the resulting canvas to fit the desired text.
  • Added support for CZML path visualization via the DynamicPath and DynamicPathVisualizer objects. See the CZML wiki for more details.
  • Added support for WEBGL_depth_texture. See Framebuffer.setDepthTexture.
  • Added CesiumMath.isPowerOfTwo.
  • Added affectedByLighting to ComplexConicSensorVolume, CustomSensorVolume, and RectangularPyramidSensorVolume to turn lighting on/off for these objects.
  • CZML Polygon, Cone, and Pyramid objects are no longer affected by lighting.
  • Added czm_viewRotation and czm_viewInverseRotation automatic GLSL uniforms.
  • Added a clampToPixel property to BillboardCollection and LabelCollection. When true, it aligns all billboards and text to a pixel in screen space, providing a crisper image at the cost of jumpier motion.
  • Ellipsoid functions now take optional result parameters.

b7 - 08/01/2012

  • Breaking changes:

    • Removed keyboard input handling from EventHandler.
    • TextureAtlas takes an object literal in its constructor instead of separate parameters. Code that previously looked like:

      context.createTextureAtlas(images, pixelFormat, borderWidthInPixels);

      should now look like:

      context.createTextureAtlas({images : images, pixelFormat : pixelFormat, borderWidthInPixels : borderWidthInPixels});
    • Camera.pickEllipsoid returns the picked position in world coordinates and the ellipsoid parameter is optional. Prefer the new Scene.pickEllipsoid method. For example, change

      var position = camera.pickEllipsoid(ellipsoid, windowPosition);


      var position = scene.pickEllipsoid(windowPosition, ellipsoid);
    • Camera.getPickRay now returns the new Ray type instead of an object with position and direction properties.

    • Camera.viewExtent now takes an Extent argument instead of west, south, east and north arguments. Prefer Scene.viewExtent over Camera.viewExtent. Scene.viewExtent will work in any SceneMode. For example, change

      camera.viewExtent(ellipsoid, west, south, east, north);


      scene.viewExtent(extent, ellipsoid);
    • CameraSpindleController.mouseConstrainedZAxis has been removed. Instead, use CameraSpindleController.constrainedAxis. Code that previously looked like:

      spindleController.mouseConstrainedZAxis = true;

      should now look like:

      spindleController.constrainedAxis = Cartesian3.UNIT_Z;
    • The Camera2DController constructor and CameraControllerCollection.add2D now require a projection instead of an ellipsoid.

    • Chain has been removed. when is now included as a more complete CommonJS Promises/A implementation.
    • Jobs.downloadImage was replaced with loadImage to provide a promise that will asynchronously load an image.
    • jsonp now returns a promise for the requested data, removing the need for a callback parameter.
    • JulianDate.getTimeStandard() has been removed, dates are now always stored internally as TAI.
    • LeapSeconds.setLeapSeconds now takes an array of LeapSecond instances instead of JSON.
    • TimeStandard.convertUtcToTai and TimeStandard.convertTaiToUtc have been removed as they are no longer needed.
    • Cartesian3.prototype.getXY() was replaced with Cartesian2.fromCartesian3. Code that previously looked like cartesian3.getXY(); should now look like Cartesian2.fromCartesian3(cartesian3);.
    • Cartesian4.prototype.getXY() was replaced with Cartesian2.fromCartesian4. Code that previously looked like cartesian4.getXY(); should now look like Cartesian2.fromCartesian4(cartesian4);.
    • Cartesian4.prototype.getXYZ() was replaced with Cartesian3.fromCartesian4. Code that previously looked like cartesian4.getXYZ(); should now look like Cartesian3.fromCartesian4(cartesian4);.
    • Math.angleBetween was removed because it was a duplicate of Cartesian3.angleBetween. Simply replace calls of the former to the later.
    • Cartographic3 was renamed to Cartographic.
    • Cartographic2 was removed; use Cartographic instead.
    • Ellipsoid.toCartesian was renamed to Ellipsoid.cartographicToCartesian.
    • Ellipsoid.toCartesians was renamed to Ellipsoid.cartographicArrayToCartesianArray.
    • Ellipsoid.toCartographic2 was renamed to Ellipsoid.cartesianToCartographic.
    • Ellipsoid.toCartographic2s was renamed to Ellipsoid.cartesianArrayToCartographicArray.
    • Ellipsoid.toCartographic3 was renamed to Ellipsoid.cartesianToCartographic.
    • Ellipsoid.toCartographic3s was renamed to Ellipsoid.cartesianArrayToCartographicArray.
    • Ellipsoid.cartographicDegreesToCartesian was removed. Code that previously looked like ellipsoid.cartographicDegreesToCartesian(new Cartographic(45, 50, 10)) should now look like ellipsoid.cartographicToCartesian(Cartographic.fromDegrees(45, 50, 10)).
    • Math.cartographic3ToRadians, Math.cartographic2ToRadians, Math.cartographic2ToDegrees, and Math.cartographic3ToDegrees were removed. These functions are no longer needed because Cartographic instances are always represented in radians.
    • All functions starting with multiplyWith now start with multiplyBy to be consistent with functions starting with divideBy.
    • The multiplyWithMatrix function on each Matrix type was renamed to multiply.
    • All three Matrix classes have been largely re-written for consistency and performance. The values property has been eliminated and Matrices are no longer immutable. Code that previously looked like matrix = matrix.setColumn0Row0(12); now looks like matrix[Matrix2.COLUMN0ROW0] = 12;. Code that previously looked like matrix.setColumn3(cartesian3); now looked like matrix.setColumn(3, cartesian3, matrix).
    • 'Polyline' is no longer externally creatable. To create a 'Polyline' use the 'PolylineCollection.add' method.

      Polyline polyline = new Polyline();


      PolylineCollection polylineCollection = new PolylineCollection();
      Polyline polyline = polylineCollection.add();
  • All Cartesian2 operations now have static versions that work with any objects exposing x and y properties.

  • All Cartesian3 operations now have static versions that work with any objects exposing x, y, and z properties.
  • All Cartesian4 operations now have static versions that work with any objects exposing x, y, z and w properties.
  • All Cartographic operations now have static versions that work with any objects exposing longitude, latitude, and height properties.
  • All Matrix classes are now indexable like arrays.
  • All Matrix operations now have static versions of all prototype functions and anywhere we take a Matrix instance as input can now also take an Array or TypedArray.
  • All Matrix, Cartesian, and Cartographic operations now take an optional result parameter for object re-use to reduce memory pressure.
  • Added Cartographic.fromDegrees to make creating Cartographic instances from values in degrees easier.
  • Added addImage to TextureAtlas so images can be added to a texture atlas after it is constructed.
  • Added Scene.pickEllipsoid, which picks either the ellipsoid or the map depending on the current SceneMode.
  • Added Event, a new utility class which makes it easy for objects to expose event properties.
  • Added TextureAtlasBuilder, a new utility class which makes it easy to build a TextureAtlas asynchronously.
  • Added Clock, a simple clock for keeping track of simulated time.
  • Added LagrangePolynomialApproximation, HermitePolynomialApproximation, and LinearApproximation interpolation algorithms.
  • Added CoordinateConversions, a new static class where most coordinate conversion methods will be stored.
  • Added Spherical coordinate type
  • Added a new DynamicScene layer for time-dynamic, data-driven visualization. This include CZML processing. For more details see and
  • Added a new application, Cesium Viewer, for viewing CZML files and otherwise exploring the globe.
  • Added a new Widgets directory, to contain common re-usable Cesium related controls.
  • Added a new Timeline widget to the Widgets directory.
  • Added a new Widgets/Dojo directory, to contain dojo-specific widgets.
  • Added new Timeline and Cesium dojo widgets.
  • Added CameraCentralBodyController as the new default controller to handle mouse input.
    • The left mouse button rotates around the central body.
    • The right mouse button and mouse wheel zoom in and out.
    • The middle mouse button rotates around the point clicked on the central body.
  • Added computeTemeToPseudoFixedMatrix function to Transforms.
  • Added 'PolylineCollection' to manage numerous polylines. 'PolylineCollection' dramatically improves rendering speed when using polylines.

b6a - 06/20/2012

  • Breaking changes:
    • Changed Tipsify.tipsify and Tipsify.calculateACMR to accept an object literal instead of three separate arguments. Supplying a maximum index and cache size is now optional.
    • CentralBody no longer requires a camera as the first parameter.
  • Added CentralBody.northPoleColor and CentralBody.southPoleColor to fill in the poles if they are not covered by a texture.
  • Added Polygon.configureExtent to create a polygon defined by west, south, east, and north values.
  • Added functions to Camera to provide position and directions in world coordinates.
  • Added showThroughEllipsoid to CustomSensorVolume and RectangularPyramidSensorVolume to allow sensors to draw through Earth.
  • Added affectedByLighting to CentralBody and Polygon to turn lighting on/off for these objects.

b5 - 05/15/2012

  • Breaking changes:

    • Renamed Geoscope to Cesium. To update your code, change all Geoscope.* references to Cesium.*, and reference Cesium.js instead of Geoscope.js.
    • CompositePrimitive.addGround was removed; use CompositePrimitive.add instead. For example, change



    • Moved eastNorthUpToFixedFrame and northEastDownToFixedFrame functions from Ellipsoid to a new Transforms object. For example, change

      var m = ellipsoid.eastNorthUpToFixedFrame(p);


      var m = Cesium.Transforms.eastNorthUpToFixedFrame(p, ellipsoid);
    • Label properties fillStyle and strokeStyle were renamed to fillColor and outlineColor; they are also now color objects instead of strings. The label Color property has been removed.

      For example, change



      label.setFillColor({ red : 1.0, blue : 0.0, green : 0.0, alpha : 1.0 });
      label.setOutlineColor({ red : 1.0, blue : 1.0, green : 1.0, alpha : 1.0 });
    • Renamed Tipsify.Tipsify to Tipsify.tipsify.

    • Renamed Tipsify.CalculateACMR to Tipsify.calculateACMR.
    • Renamed LeapSecond.CompareLeapSecondDate to LeapSecond.compareLeapSecondDate.
    • Geoscope.JSONP.get is now Cesium.jsonp. Cesium.jsonp now takes a url, a callback function, and an options object. The previous 2nd and 4th parameters are now specified using the options object.
    • TWEEN is no longer globally defined, and is instead available as Cesium.Tween.
    • Chain.js functions such as run are now moved to, etc.
    • Geoscope.CollectionAlgorithms.binarySearch is now Cesium.binarySearch.
    • Geoscope.ContainmentTests.pointInsideTriangle2D is now Cesium.pointInsideTriangle2D.
    • Static constructor methods prefixed with "createFrom", now start with "from":



    • The JulianDate constructor no longer takes a Date object, use the new from methods instead:

      new JulianDate(new Date());


      JulianDate.fromDate(new Date("January 1, 2011 12:00:00 EST"));
    • JulianDate.getDate is now JulianDate.toDate() and returns a new instance each time.

    • CentralBody.logoOffsetX and logoOffsetY have been replaced with CentralBody.logoOffset, a Cartesian2.
    • TileProviders now take a proxy object instead of a string, to allow more control over how proxy URLs are built. Construct a DefaultProxy, passing the previous proxy URL, to get the previous behavior.
    • Ellipsoid.getScaledWgs84() has been removed since it is not needed.
    • getXXX() methods which returned a new instance of what should really be a constant are now exposed as frozen properties instead. This should improve performance and memory pressure.

      • Cartsian2/3/4.getUnitX() -> Cartsian2/3/4.UNIT_X
      • Cartsian2/3/4.getUnitY() -> Cartsian2/3/4.UNIT_Y
      • Cartsian2/3/4.getUnitZ() -> Cartsian3/4.UNIT_Z
      • Cartsian2/3/4.getUnitW() -> Cartsian4.UNIT_W
      • Matrix/2/3/4.getIdentity() -> Matrix/2/3/4.IDENTITY
      • Quaternion.getIdentity() -> Quaternion.IDENTITY
      • Ellipsoid.getWgs84() -> Ellipsoid.WGS84
      • Ellipsoid.getUnitSphere() -> Ellipsoid.UNIT_SPHERE
      • Cartesian2/3/4/Cartographic.getZero() -> Cartesian2/3/4/Cartographic.ZERO
  • Added PerformanceDisplay which can be added to a scene to display frames per second (FPS).

  • Labels now correctly allow specifying fonts by non-pixel CSS units such as points, ems, etc.
  • Added Shapes.computeEllipseBoundary and updated Shapes.computeCircleBoundary to compute boundaries using arc-distance.
  • Added fileExtension and credit properties to OpenStreetMapTileProvider construction.
  • Night lights no longer disappear when CentralBody.showGroundAtmosphere is true.

b4 - 03/01/2012

  • Breaking changes:

    • Replaced Geoscope.SkyFromSpace object with CentralBody.showSkyAtmosphere property.
    • For mouse click and double click events, replaced event.x and event.y with event.position.
    • For mouse move events, replaced movement.startX and startY with movement.startPosition. Replaced movement.endX and movement.endY with movement.endPosition.
    • Scene.Pick now takes a Cartesian2 with the origin at the upper-left corner of the canvas. For example, code that looked like:

      scene.pick(movement.endX, scene.getCanvas().clientHeight - movement.endY);


  • Added SceneTransitioner to switch between 2D and 3D views. See the new Skeleton 2D example.

  • Added CentralBody.showGroundAtmosphere to show an atmosphere on the ground.
  • Added Camera.pickEllipsoid to get the point on the globe under the mouse cursor.
  • Added Polygon.height to draw polygons at a constant altitude above the ellipsoid.

b3 - 02/06/2012

  • Breaking changes:
    • Replaced Geoscope.Constants and Geoscope.Trig with Geoscope.Math.
    • Polygon
      • Replaced setColor and getColor with a material.color property.
      • Replaced setEllipsoid and getEllipsoid with an ellipsoid property.
      • Replaced setGranularity and getGranularity with a granularity property.
    • Polyline
      • Replaced setColor/getColor and setOutlineColor/getOutlineColor with color and outline properties.
      • Replaced setWidth/getWidth and setOutlineWidth/getOutlineWidth with width and outlineWidth properties.
    • Removed Geoscope.BillboardCollection.bufferUsage. It is now automatically determined.
    • Removed Geoscope.Label set/get functions for shadowOffset, shadowBlur, shadowColor. These are no longer supported.
    • Renamed Scene.getTransitions to Scene.getAnimations.
    • Renamed SensorCollection to SensorVolumeCollection.
    • Replaced ComplexConicSensorVolume.material with separate materials for each surface: outerMaterial, innerMaterial, and capMaterial.
    • Material renames
      • TranslucentSensorVolumeMaterial to ColorMaterial.
      • DistanceIntervalSensorVolumeMaterial to DistanceIntervalMaterial.
      • TieDyeSensorVolumeMaterial to TieDyeMaterial.
      • CheckerboardSensorVolumeMaterial to CheckerboardMaterial.
      • PolkaDotSensorVolumeMaterial to DotMaterial.
      • FacetSensorVolumeMaterial to FacetMaterial.
      • BlobSensorVolumeMaterial to BlobMaterial.
    • Added new materials:
      • VerticalStripeMaterial
      • HorizontalStripeMaterial
      • DistanceIntervalMaterial
    • Added polygon material support via the new Polygon.material property.
    • Added clock angle support to ConicSensorVolume via the new maximumClockAngle and minimumClockAngle properties.
    • Added a rectangular sensor, RectangularPyramidSensorVolume.
    • Changed custom sensor to connect direction points using the sensor's radius; previously, points were connected with a line.
    • Improved performance and memory usage of BillboardCollection and LabelCollection.
    • Added more mouse events.
    • Added Sandbox examples for new features.

b2 - 12/01/2011

  • Added complex conic and custom sensor volumes, and various materials to change their appearance. See the new Sensor folder in the Sandbox.
  • Added modelMatrix property to primitives to render them in a local reference frame. See the polyline example in the Sandbox.
  • Added eastNorthUpToFixedFrame() and northEastDownToFixedFrame() to Ellipsoid to create local reference frames.
  • Added CameraFlightController to zoom smoothly from one point to another. See the new camera examples in the Sandbox.
  • Added row and column assessors to Matrix2, Matrix3, and Matrix4.
  • Added Scene, which reduces the amount of code required to use Geoscope. See the Skeleton. We recommend using this instead of explicitly calling update() and render() for individual or composite primitives. Existing code will need minor changes:

    • Calls to Context.pick() should be replaced with Scene.pick().
    • Primitive constructors no longer require a context argument.
    • Primitive update() and render() functions now require a context argument. However, when using the new Scene object, these functions do not need to be called directly.
    • TextureAtlas should no longer be created directly; instead, call Scene.getContext().createTextureAtlas().
    • Other breaking changes:

      • Camera get/set functions, e.g., getPosition/setPosition were replaced with properties, e.g., position.
      • Replaced CompositePrimitive, Polygon, and Polyline getShow/setShow functions with a show property.
      • Replaced Polyline, Polygon, BillboardCollection, and LabelCollection getBufferUsage/setBufferUsage functions with a bufferUsage property.
      • Changed colors used by billboards, labels, polylines, and polygons. Previously, components were named r, g, b, and a. They are now red, green, blue, and alpha. Previously, each component's range was [0, 255]. The range is now [0, 1] floating point. For example,

        color : { r : 0, g : 255, b : 0, a : 255 }


        color : { red : 0.0, green : 1.0, blue : 0.0, alpha : 1.0 }

b1 - 09/19/2011

  • Added Shapes.computeCircleBoundary to compute circles. See the Sandbox.
  • Changed the EventHandler constructor function to take the Geoscope canvas, which ensures the mouse position is correct regardless of the canvas' position on the page. Code that previously looked like:

    var handler = new Geoscope.EventHandler();

    should now look like:

    var handler = new Geoscope.EventHandler(canvas);
  • Context.Pick no longer requires clamping the x and y arguments. Code that previously looked like:

    var pickedObject = context.pick(primitives, us, Math.max(x, 0.0),
        Math.max(context.getCanvas().clientHeight - y, 0.0));

    can now look like:

    var pickedObject = context.pick(primitives, us, x, context.getCanvas().clientHeight - y);
  • Changed Polyline.setWidth and Polyline.setOutlineWidth to clamp the width to the WebGL implementation limit instead of throwing an exception. Code that previously looked like:

    var maxWidth = context.getMaximumAliasedLineWidth();
    polyline.setWidth(Math.min(5, maxWidth));
    polyline.setOutlineWidth(Math.min(10, maxWidth));

    can now look like:

  • Improved the Sandbox:

    • Code in the editor is now evaluated as you type for quick prototyping.
    • Highlighting a Geoscope type in the editor and clicking the doc button in the toolbar now brings up the reference help for that type.
  • BREAKING CHANGE: The Context constructor-function now takes an element instead of an ID. Code that previously looked like:

    var context = new Geoscope.Context("glCanvas");
    var canvas = context.getCanvas();

    should now look like:

    var canvas = document.getElementById("glCanvas");
    var context = new Geoscope.Context(canvas);

b0 - 08/31/2011

  • Added new Sandbox and Skeleton examples. The sandbox contains example code for common tasks. The skeleton is a bare-bones application for building upon. Most sandbox code examples can be copy and pasted directly into the skeleton.
  • Added Geoscope.Polygon for drawing polygons on the globe.
  • Added Context.pick to pick objects in one line of code.
  • Added bringForward, bringToFront, sendBackward, and sendToBack functions to CompositePrimitive to control the render-order for ground primitives.
  • Added getShow/setShow functions to Polyline and CompositePrimitive.
  • Added new camera control and event types including CameraFreeLookEventHandler, CameraSpindleEventHandler, and EventHandler.
  • Replaced Ellipsoid.toCartesian3 with Ellipsoid.toCartesian.
  • update and updateForPick functions no longer require a UniformState argument.

Alpha Releases

a6 - 08/05/2011

  • Added support for lines using Geoscope.Polyline. See the Sandbox example.
  • Made CompositePrimitive, LabelCollection, and BillboardCollection have consistent function names, including a new contains() function.
  • Improved reference documentation layout.

a5 - 07/22/2011

  • Flushed out CompositePrimitive, TimeStandard, and LeapSecond types.
  • Improved support for browsers using ANGLE (Windows Only).

a4 - 07/15/2011

  • Added Geoscope.TimeStandard for handling TAI and UTC time standards.
  • Added Geoscope.Quaternion, which is a foundation for future camera control.
  • Added initial version of Geoscope.PrimitiveCollection to simplify rendering.
  • Prevented billboards/labels near the surface from getting cut off by the globe.
  • See the Sandbox for example code.
  • Added more reference documentation for labels.

a3 - 07/08/2011

  • Added Geoscope.LabelCollection for drawing text.
  • Added Geoscope.JulianDate and Geoscope.TimeConstants for proper time handling.
  • See the Sandbox example for how to use the new labels and Julian date.

a2 - 07/01/2011

  • Added Geoscope.ViewportQuad and Geoscope.Rectangle (foundations for 2D map).
  • Improved the visual quality of cloud shadows.

a1 - 06/24/2011

  • Added SunPosition type to compute the sun position for a julian date.
  • Simplified picking. See the mouse move event in the Sandbox example.
  • Cartographic2 and Cartographic3 are now mutable types.
  • Added reference documentation for billboards.

a0 - 06/17/2011

  • Initial Release.
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