{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949324,-0.314298,0.000000,0.000000,0.175703,-0.530705,0.829145,0.000000,-0.260049,0.785469,0.561616,0.000000,-1660383.767015,5015126.369370,3561848.177857,1],    "boundingVolume": {    "region": [1.890464,0.596297,1.890563,0.596379,0.000000,8.777598]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1416122.b3dm"}}}