{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950550,-0.310572,0.000000,0.000000,0.173519,-0.531082,0.829363,0.000000,-0.257035,0.786692,0.561292,0.000000,-1641133.938075,5022930.939335,3559785.439635,1],    "boundingVolume": {    "region": [1.886533,0.595889,1.886648,0.596003,0.000000,8.813019]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/14_1426150.b3dm"}}}