{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949858,-0.312682,0.000000,0.000000,0.115459,-0.350738,0.929329,0.000000,-0.290317,0.881918,0.371399,0.000000,-1852536.534169,5627590.833376,2354063.232992,1],    "boundingVolume": {    "region": [1.888742,0.380425,1.888881,0.380606,0.000000,5.936389]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_70972.b3dm"}}}