{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943860,-0.330346,0.000000,0.000000,0.184201,-0.526296,0.830110,0.000000,-0.273649,0.781865,0.560181,0.000000,-1747205.563443,4992091.509277,3552725.950196,1],    "boundingVolume": {    "region": [1.907412,0.594514,1.907521,0.594694,0.000000,8.549401]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/15_1241958.b3dm"}}}