{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.951230,-0.308482,0.000000,0.000000,0.171207,-0.527933,0.831850,0.000000,-0.256078,0.789638,0.557580,0.000000,-1635000.953719,5041669.342649,3536198.288811,1],    "boundingVolume": {    "region": [1.884392,0.591467,1.884394,0.591469,0.000000,7.434517]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/6/52/40.b3dm"}}}