{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950050,-0.312098,0.000000,0.000000,0.174038,-0.529783,0.830085,0.000000,-0.258525,0.786969,0.560218,0.000000,-1650642.517499,5024677.026806,3552964.288744,1],    "boundingVolume": {    "region": [1.888115,0.594584,1.888279,0.594715,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1459008.b3dm"}}}