{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949629,-0.313378,0.000000,0.000000,0.174795,-0.529681,0.829991,0.000000,-0.259555,0.786530,0.560359,0.000000,-1657221.570072,5021876.163336,3553855.506777,1],    "boundingVolume": {    "region": [1.889463,0.594686,1.889625,0.594952,0.000000,8.789707]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1379423.b3dm"}}}