{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949858,-0.312680,0.000000,0.000000,0.115458,-0.350737,0.929329,0.000000,-0.290315,0.881918,0.371399,0.000000,-1852525.743386,5627595.695047,2354060.123511,1],    "boundingVolume": {    "region": [1.888741,0.380424,1.888879,0.380606,0.000000,5.936389]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_70969.b3dm"}}}