{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949684,-0.313209,0.000000,0.000000,0.174746,-0.529850,0.829893,0.000000,-0.259385,0.786483,0.560504,0.000000,-1656135.346397,5021577.620598,3554777.383206,1],    "boundingVolume": {    "region": [1.889286,0.594861,1.889448,0.595127,0.000000,8.782894]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1357939.b3dm"}}}