{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950873,-0.309582,0.000000,0.000000,0.172983,-0.531312,0.829327,0.000000,-0.256205,0.786925,0.561345,0.000000,-1635834.660192,5024418.134530,3560123.502406,1],    "boundingVolume": {    "region": [1.885477,0.595900,1.885623,0.596120,0.000000,8.797125]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1339616.b3dm"}}}