{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950485,-0.310772,0.000000,0.000000,0.173450,-0.530490,0.829756,0.000000,-0.257323,0.787015,0.560707,0.000000,-1642973.550819,5024977.802828,3556071.191352,1],    "boundingVolume": {    "region": [1.886751,0.595181,1.886851,0.595298,0.000000,8.787647]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/8_1450345.b3dm"}}}