{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950207,-0.311620,0.000000,0.000000,0.173781,-0.529900,0.830064,0.000000,-0.258122,0.787079,0.560249,0.000000,-1648071.890993,5025380.411439,3553161.479586,1],    "boundingVolume": {    "region": [1.887612,0.594621,1.887776,0.594753,0.000000,8.743291]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_1459389.b3dm"}}}