{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950756,-0.309940,0.000000,0.000000,0.172980,-0.530624,0.829769,0.000000,-0.256639,0.787251,0.560689,0.000000,-1638602.161834,5026488.909331,3555953.342472,1],    "boundingVolume": {    "region": [1.885869,0.595160,1.885984,0.595275,0.000000,8.761658]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1341288.b3dm"}}}