{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950531,-0.310630,0.000000,0.000000,0.173363,-0.530492,0.829773,0.000000,-0.257211,0.787069,0.560683,0.000000,-1642256.024031,5025323.229209,3555915.547265,1],    "boundingVolume": {    "region": [1.886561,0.595137,1.886743,0.595283,0.000000,8.784621]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/15_1450135.b3dm"}}}