{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950882,-0.309554,0.000000,0.000000,0.172963,-0.531305,0.829336,0.000000,-0.256184,0.786941,0.561332,0.000000,-1635703.406938,5024521.588347,3560038.375657,1],    "boundingVolume": {    "region": [1.885447,0.595884,1.885593,0.596104,0.000000,8.818891]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1422446.b3dm"}}}