{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949059,-0.315098,0.000000,0.000000,0.176224,-0.530777,0.828988,0.000000,-0.260662,0.785100,0.561849,0.000000,-1664295.261049,5012771.641135,3563327.088143,1],    "boundingVolume": {    "region": [1.891306,0.596608,1.891407,0.596630,0.000000,34.722888]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/21/10_1420809.b3dm"}}}