{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950715,-0.310066,0.000000,0.000000,0.173200,-0.531060,0.829444,0.000000,-0.256642,0.786906,0.561172,0.000000,-1638624.765133,5024293.095006,3559024.094055,1],    "boundingVolume": {    "region": [1.886001,0.595744,1.886117,0.595858,0.000000,8.784505]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1424903.b3dm"}}}