{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950208,-0.311615,0.000000,0.000000,0.173773,-0.529887,0.830074,0.000000,-0.258121,0.787090,0.560235,0.000000,-1648066.168819,5025448.223937,3553068.846184,1],    "boundingVolume": {    "region": [1.887607,0.594604,1.887771,0.594735,0.000000,8.703297]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1459223.b3dm"}}}