{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950059,-0.312069,0.000000,0.000000,0.174013,-0.529762,0.830104,0.000000,-0.258507,0.786995,0.560191,0.000000,-1650527.837822,5024840.356110,3552787.762764,1],    "boundingVolume": {    "region": [1.888085,0.594550,1.888249,0.594682,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1458686.b3dm"}}}