{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950797,-0.309814,0.000000,0.000000,0.173190,-0.531506,0.829160,0.000000,-0.256344,0.786702,0.561593,0.000000,-1636728.570801,5023000.440641,3561702.172426,1],    "boundingVolume": {    "region": [1.885721,0.596200,1.885867,0.596420,0.000000,8.812346]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/14/14_1423728.b3dm"}}}