{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949291,-0.314399,0.000000,0.000000,0.175770,-0.530716,0.829123,0.000000,-0.260126,0.785421,0.561648,0.000000,-1660876.483900,5014820.686417,3562047.503196,1],    "boundingVolume": {    "region": [1.890570,0.596335,1.890669,0.596417,0.000000,8.719073]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/14_1417080.b3dm"}}}