{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950210,-0.311610,0.000000,0.000000,0.173771,-0.529890,0.830073,0.000000,-0.258117,0.787090,0.560237,0.000000,-1648036.358138,5025449.826929,3553080.328863,1],    "boundingVolume": {    "region": [1.887601,0.594606,1.887765,0.594737,0.000000,8.703297]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/7_1459243.b3dm"}}}