{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943122,-0.332447,0.000000,0.000000,0.186282,-0.528464,0.828266,0.000000,-0.274772,0.779503,0.562917,0.000000,-1754395.800372,4977056.576586,3570116.939348,1],    "boundingVolume": {    "region": [1.909631,0.597871,1.909756,0.597951,0.000000,8.743779]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1284817.b3dm"}}}