{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949085,-0.315021,0.000000,0.000000,0.175855,-0.529811,0.829684,0.000000,-0.260819,0.785786,0.560815,0.000000,-1665293.480806,5017137.463753,3556754.540384,1],    "boundingVolume": {    "region": [1.891207,0.595316,1.891344,0.595423,0.000000,7.173493]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/3_1374703.b3dm"}}}