{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898647,-0.438673,0.000000,0.000000,0.283679,-0.581132,0.762766,0.000000,-0.333663,0.683526,0.649200,0.000000,-2131155.226983,4365788.851912,4118782.029243,1],    "boundingVolume": {    "region": [2.024868,0.706495,2.024969,0.706570,0.000000,16.594930]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/6_1818793.b3dm"}}}