{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950459,-0.310851,0.000000,0.000000,0.173535,-0.530602,0.829667,0.000000,-0.257361,0.786907,0.560841,0.000000,-1643212.555910,5024294.320713,3556920.673567,1],    "boundingVolume": {    "region": [1.886835,0.595343,1.886934,0.595460,0.000000,8.818353]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/9_1450895.b3dm"}}}