{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951160,-0.308699,0.000000,0.000000,0.115741,-0.356618,0.927053,0.000000,-0.285909,0.880939,0.377099,0.000000,-1824434.928428,5621423.233035,2390222.951064,1],    "boundingVolume": {    "region": [1.884540,0.386610,1.884703,0.386713,0.000000,63.286850]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/17/13_21019.b3dm"}}}