{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949340,-0.314252,0.000000,0.000000,0.175680,-0.530721,0.829139,0.000000,-0.260010,0.785476,0.561625,0.000000,-1660131.450209,5015171.535432,3561901.831731,1],    "boundingVolume": {    "region": [1.890416,0.596307,1.890515,0.596389,0.000000,8.777598]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/13_1416410.b3dm"}}}