{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944300,-0.329086,0.000000,0.000000,0.183942,-0.527814,0.829203,0.000000,-0.272305,0.781367,0.561529,0.000000,-1738631.894864,4988937.072712,3561294.957374,1],    "boundingVolume": {    "region": [1.906075,0.596195,1.906189,0.596270,0.000000,8.760794]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_851539.b3dm"}}}