I’m new to cesium. Can anyone tell me how to create my own ‘imagery layer’ which have different colour based on few parameter.
We don’t have a tutorial on creating your own yet, but the Grid provider is an excellent place to start, just copy and paste and modify to suite your needs: https://github.com/AnalyticalGraphicsInc/cesium/blob/master/Source/Scene/GridImageryProvider.js
There’s also a tutorial on using imagery in general that may be beneficial if you are new to Cesium: http://cesiumjs.org/2013/01/04/Cesium-Imagery-Layers-Tutorial/