{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949475,-0.313843,0.000000,0.000000,0.175433,-0.530740,0.829179,0.000000,-0.259684,0.785626,0.561565,0.000000,-1658052.092380,5016129.741432,3561523.614175,1],    "boundingVolume": {    "region": [1.889985,0.596235,1.890084,0.596317,0.000000,8.785490]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1444436.b3dm"}}}