{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949477,-0.313836,0.000000,0.000000,0.175451,-0.530808,0.829132,0.000000,-0.259663,0.785583,0.561635,0.000000,-1657917.210127,5015857.067481,3561967.416308,1],    "boundingVolume": {    "region": [1.889977,0.596320,1.890076,0.596401,0.000000,10.281829]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1409176.b3dm"}}}