{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949068,-0.315070,0.000000,0.000000,0.176029,-0.530243,0.829371,0.000000,-0.260760,0.785473,0.561281,0.000000,-1664918.691471,5015147.714914,3559714.978688,1],    "boundingVolume": {    "region": [1.891258,0.595879,1.891395,0.595986,0.000000,13.459489]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/8_1374436.b3dm"}}}