{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943295,-0.331956,0.000000,0.000000,0.186139,-0.528937,0.827996,0.000000,-0.274276,0.779389,0.563316,0.000000,-1751229.288351,4976341.344810,3572650.638142,1],    "boundingVolume": {    "region": [1.909100,0.598345,1.909245,0.598442,0.000000,8.616977]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/6_545552.b3dm"}}}