{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950260,-0.311458,0.000000,0.000000,0.173974,-0.530796,0.829450,0.000000,-0.257795,0.786536,0.561162,0.000000,-1645990.538546,5021929.439210,3558961.587410,1],    "boundingVolume": {    "region": [1.887473,0.595731,1.887573,0.595848,0.000000,8.812534]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/13_1428958.b3dm"}}}