{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949211,-0.314639,0.000000,0.000000,0.115959,-0.349827,0.929610,0.000000,-0.292223,0.881587,0.370689,0.000000,-1864699.327870,5625469.953240,2349555.494239,1],    "boundingVolume": {    "region": [1.890819,0.379693,1.890927,0.379808,0.000000,51.248855]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/12/19_75909.b3dm"}}}