{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950359,-0.311156,0.000000,0.000000,0.173542,-0.530046,0.830021,0.000000,-0.257725,0.787164,0.560314,0.000000,-1645533.180296,5025921.291555,3553570.300473,1],    "boundingVolume": {    "region": [1.887156,0.594706,1.887256,0.594823,0.000000,8.622843]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/4_1459691.b3dm"}}}