{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898351,-0.439278,0.000000,0.000000,0.284077,-0.580955,0.762753,0.000000,-0.334117,0.683290,0.649215,0.000000,-2134055.994659,4364278.481636,4118880.091432,1],    "boundingVolume": {    "region": [2.025541,0.706515,2.025642,0.706590,0.000000,43.122198]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/6_1818998.b3dm"}}}