{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898484,-0.439006,0.000000,0.000000,0.283922,-0.581085,0.762711,0.000000,-0.333892,0.683354,0.649264,0.000000,-2132620.300660,4364687.578324,4119188.118579,1],    "boundingVolume": {    "region": [2.025238,0.706579,2.025339,0.706654,0.000000,52.896269]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1819379.b3dm"}}}