{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950535,-0.310618,0.000000,0.000000,0.173388,-0.530592,0.829704,0.000000,-0.257180,0.787006,0.560785,0.000000,-1642057.874554,5024923.571658,3556567.386646,1],    "boundingVolume": {    "region": [1.886582,0.595277,1.886698,0.595391,0.000000,8.803719]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1450544.b3dm"}}}