cesium

I'm currently using Cesium for a mapping application, and I have a requirement to have status indicators for each item I'm plotting (for example, if the item I'm plotting is an airplane, then I need to have a fuel status indicator). I can't use Cesium's drawing tools to do this because they are drawn using geographic locations, but I need my status indicators to simply be located near the billboard and not get farther away from the billboard as users zoom in and out. Cesium's CZML documentation states that the billboard's "image" property can take a data URI, so I figured the easiest way to

I would like to initialize cesium so that the map is centered on some specific coordinates instead of the default ones. I have the following initialization code: var map = new Cesium.CesiumWidget('map-js'); map.centralBody.terrainProvider = new Cesium.CesiumTerrainProvider({ url : 'http://cesiumjs.org/smallterrain' }); Usually, with other mapping libraries, I would set the center on initialization, eg on mapbox: map = L.mapbox.map('map-js', 'api-key').setView([42.12, 12.45], 9); How to do that with cesium ? Try adding this after your first block of code above: var scene = map.scene; var

I'm trying to put a point at the top of Mount Everest in Cesium . My most likely candidate as of last night was the code I borrowed to do geodetic to ecef conversion (from PySatel.coord). Upon review this morning, it appears to be correct: a = 6378.137 b = 6356.7523142 esq = 6.69437999014 * 0.001 e1sq = 6.73949674228 * 0.001 f = 1 / 298.257223563 def geodetic2ecef(lat, lon, alt): """Convert geodetic coordinates to ECEF. Units are degrees and kilometers. """ lat, lon = radians(lat), radians(lon) xi = sqrt(1 - esq * sin(lat)) x = (a / xi + alt) * cos(lat) * cos(lon) y = (a / xi + alt) * cos(lat)

I'm ultimately trying to draw a polygon on top of my house. I can do that. The problem is that on zoom-out, zoom-in, and rotation (or camera move) the polygon doesn't stick to the top of my house. I received great help from this answer . So, now I'm trying to go through the sample code but there is a lot of Cesium methods and functionality that I need to learn. The sample code I am trying to follow is located in the gold standard that appears to be baked into the existing camera controller here . I call testMe with the mousePosition as Cartesian3 and the SceneMode is 3D, so pickGlobe is

So, I'm using cesium and I want to add a polygon or line to represent a property boundary on a terrain surface. My polygon works fine on the flat/Ellipsoid surface, unfortunately however the polygon doesn't automagically drape over the surface when the terrain layer is shown. Fair enough, I don't actually have the z/height values - so I'm using the sampleTerrain.js promise method to interpolate the height values based on the terrain. This part works fine, I get my height values. But then what? I've tried creating a polygon entity with my height-laden positions, but to no avail - it just