{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950560,-0.310540,0.000000,0.000000,0.173725,-0.531770,0.828879,0.000000,-0.256857,0.786237,0.562010,0.000000,-1640004.719213,5020040.166223,3564349.912162,1],    "boundingVolume": {    "region": [1.886509,0.596764,1.886606,0.596863,0.000000,8.782680]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_1395765.b3dm"}}}