{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.892937,-0.450182,0.000000,0.000000,0.290487,-0.576182,0.763958,0.000000,-0.342956,0.680254,0.647793,0.000000,-2190496.413627,4344858.542864,4109832.879849,1],    "boundingVolume": {    "region": [2.037718,0.704644,2.037813,0.704725,0.000000,25.511303]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/15.b3dm"}}}