{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950492,-0.310750,0.000000,0.000000,0.173364,-0.530270,0.829915,0.000000,-0.257355,0.787172,0.560471,0.000000,-1643174.458759,5025980.617468,3554570.965745,1],    "boundingVolume": {    "region": [1.886687,0.594882,1.886870,0.595028,0.000000,8.821063]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1449306.b3dm"}}}