{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950550,-0.310572,0.000000,0.000000,0.173714,-0.531677,0.828941,0.000000,-0.256903,0.786288,0.561918,0.000000,-1640295.009627,5020361.327239,3563767.870171,1],    "boundingVolume": {    "region": [1.886542,0.596654,1.886640,0.596752,0.000000,12.343590]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1394761.b3dm"}}}