{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950035,-0.312144,0.000000,0.000000,0.174059,-0.529763,0.830093,0.000000,-0.258566,0.786964,0.560206,0.000000,-1650901.764326,5024646.366620,3552887.713327,1],    "boundingVolume": {    "region": [1.888164,0.594569,1.888327,0.594701,0.000000,16.856485]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/7_1460754.b3dm"}}}