I’m trying to set up a personal terrain view of Honolulu, offline. I need some input if I am going about this the right way, or what I’m doing wrong because I’m not getting anything to display.
First, I downloaded imagery from the USGS, used gdal2tiles, and hosted my TMS tiles on an apache server. Cesium sees that fine and I can overlay my imagery and all my zoom layers on the island.
Next, I downloaded 2 SRTM .tif files from USGS. I used docker to run cesium terrain builder. That produced a series of folders, 0-14, each with their corresponding X and Y naming convention inside the zoom folders. I also produced a “layer.json” file containing the following.
But when I use the code from the cesium tutorial in my SandCastle (also hosted on the same apache server), nothing appears. I don’t even see a blank sphere of the globe.
Now here is what I think is going on. Since I only use 2 small .tif files of hawaii, the zoom levels that show the entire globe don’t know to render an entire sphere. With googling, it seems that I should be able to download top level tiles to cover this problem. But the links are dead.
Can anyone help me figure this out? Or give me a step by step breakdown of how I can view a small bit of elevation data in cesium, I’m very new to this.