{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951632,-0.307239,0.000000,0.000000,0.170601,-0.528413,0.831670,0.000000,-0.254990,0.789799,0.557851,0.000000,-1628060.291365,5042702.677155,3537915.171469,1],    "boundingVolume": {    "region": [1.883033,0.591750,1.883141,0.591837,0.000000,7.963517]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/39/44_1321875.b3dm"}}}