{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.896996,-0.442039,0.000000,0.000000,0.285483,-0.579309,0.763480,0.000000,-0.336540,0.682915,0.648358,0.000000,-2149522.201650,4361865.999541,4113426.399902,1],    "boundingVolume": {    "region": [2.028665,0.705425,2.028668,0.705427,0.000000,8.271701]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/20/15.b3dm"}}}