{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949062,-0.315089,0.000000,0.000000,0.176222,-0.530790,0.828980,0.000000,-0.260651,0.785094,0.561861,0.000000,-1664229.330144,5012738.795963,3563403.570444,1],    "boundingVolume": {    "region": [1.891296,0.596623,1.891397,0.596645,0.000000,7.692118]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/11_1421186.b3dm"}}}