{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950492,-0.310750,0.000000,0.000000,0.173352,-0.530231,0.829942,0.000000,-0.257364,0.787199,0.560431,0.000000,-1643228.367394,5026147.041949,3554312.458137,1],    "boundingVolume": {    "region": [1.886687,0.594833,1.886870,0.594979,0.000000,8.820825]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1449166.b3dm"}}}