{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898137,-0.439716,0.000000,0.000000,0.281188,-0.574338,0.768810,0.000000,-0.337127,0.688595,0.642014,0.000000,-2153215.349971,4398027.331175,4073063.177077,1],    "boundingVolume": {    "region": [2.026032,0.697094,2.026125,0.697150,0.000000,37.047937]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/7_390150.b3dm"}}}