{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950540,-0.310601,0.000000,0.000000,0.173732,-0.531675,0.828939,0.000000,-0.256926,0.786278,0.561921,0.000000,-1640446.916211,5020297.328123,3563787.969834,1],    "boundingVolume": {    "region": [1.886573,0.596657,1.886671,0.596756,0.000000,14.464368]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1327957.b3dm"}}}