{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950566,-0.310523,0.000000,0.000000,0.173722,-0.531793,0.828865,0.000000,-0.256838,0.786228,0.562031,0.000000,-1639885.417478,5019983.264525,3564484.036061,1],    "boundingVolume": {    "region": [1.886490,0.596790,1.886588,0.596889,0.000000,8.524159]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1395953.b3dm"}}}