{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949857,-0.312686,0.000000,0.000000,0.115460,-0.350737,0.929329,0.000000,-0.290320,0.881917,0.371399,0.000000,-1852559.113818,5627584.236248,2354061.248137,1],    "boundingVolume": {    "region": [1.888746,0.380424,1.888885,0.380606,0.000000,5.936389]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_70968.b3dm"}}}