{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942664,-0.333744,0.000000,0.000000,0.187042,-0.528302,0.828198,0.000000,-0.275821,0.779059,0.563018,0.000000,-1761094.105236,4974227.852806,3570757.030023,1],    "boundingVolume": {    "region": [1.911027,0.598018,1.911111,0.598048,0.000000,8.322147]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/7/21.b3dm"}}}