{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950890,-0.309529,0.000000,0.000000,0.173022,-0.531532,0.829179,0.000000,-0.256115,0.786797,0.561565,0.000000,-1635261.036638,5023605.568901,3561523.998231,1],    "boundingVolume": {    "region": [1.885422,0.596166,1.885567,0.596386,0.000000,8.807277]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/14_1338875.b3dm"}}}