{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897875,-0.440250,0.000000,0.000000,0.282621,-0.576396,0.766742,0.000000,-0.336621,0.686528,0.644489,0.000000,-2150007.256053,4384870.161931,4088806.775700,1],    "boundingVolume": {    "region": [2.026610,0.700320,2.026737,0.700389,0.000000,33.682253]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/3_852223.b3dm"}}}