{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944308,-0.329063,0.000000,0.000000,0.183966,-0.527926,0.829126,0.000000,-0.272260,0.781301,0.561643,0.000000,-1738345.357999,4988515.399398,3562020.556759,1],    "boundingVolume": {    "region": [1.906050,0.596333,1.906164,0.596408,0.000000,8.810633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_131729.b3dm"}}}