{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.942693,-0.333661,0.000000,0.000000,0.186985,-0.528289,0.828220,0.000000,-0.275759,0.779104,0.562986,0.000000,-1760699.163603,4974513.389803,3570555.368884,1],    "boundingVolume": {    "region": [1.910918,0.597963,1.911043,0.598026,0.000000,8.482968]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/6/21_1285274.b3dm"}}}