{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950385,-0.311075,0.000000,0.000000,0.173984,-0.531549,0.828966,0.000000,-0.257327,0.786176,0.561881,0.000000,-1643005.999792,5019646.464503,3563527.634623,1],    "boundingVolume": {    "region": [1.887072,0.596608,1.887170,0.596707,0.000000,8.795234]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1394081.b3dm"}}}