{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944316,-0.329041,0.000000,0.000000,0.183930,-0.527860,0.829176,0.000000,-0.272258,0.781355,0.561569,0.000000,-1738336.143934,4988857.599119,3561548.942351,1],    "boundingVolume": {    "region": [1.906027,0.596244,1.906141,0.596318,0.000000,8.442900]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_729927.b3dm"}}}