{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897992,-0.440012,0.000000,0.000000,0.284631,-0.580884,0.762600,0.000000,-0.334608,0.682879,0.649395,0.000000,-2137194.010757,4361655.875259,4120023.200790,1],    "boundingVolume": {    "region": [2.026343,0.706677,2.026475,0.706900,0.000000,8.007974]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/15_1823595.b3dm"}}}