{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949626,-0.313385,0.000000,0.000000,0.175169,-0.530801,0.829196,0.000000,-0.259310,0.785768,0.561540,0.000000,-1655664.616331,5017033.828264,3561361.928281,1],    "boundingVolume": {    "region": [1.889502,0.596205,1.889601,0.596286,0.000000,12.457991]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/12_1443866.b3dm"}}}