{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950381,-0.311088,0.000000,0.000000,0.173993,-0.531552,0.828962,0.000000,-0.257337,0.786169,0.561886,0.000000,-1643067.081343,5019599.828845,3563564.911800,1],    "boundingVolume": {    "region": [1.887086,0.596615,1.887183,0.596714,0.000000,8.795234]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1394246.b3dm"}}}