{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949657,-0.313290,0.000000,0.000000,0.174836,-0.529969,0.829798,0.000000,-0.259422,0.786370,0.560645,0.000000,-1656371.651789,5020858.960183,3555676.237880,1],    "boundingVolume": {    "region": [1.889371,0.595032,1.889533,0.595298,0.000000,8.811738]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/13_1357015.b3dm"}}}