{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942881,-0.333129,0.000000,0.000000,0.186688,-0.528398,0.828217,0.000000,-0.275319,0.779257,0.562990,0.000000,-1757888.751252,4975488.914816,3570580.713177,1],    "boundingVolume": {    "region": [1.910354,0.597968,1.910479,0.598031,0.000000,8.576233]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/1/21_1249170.b3dm"}}}