{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.898490,-0.438995,0.000000,0.000000,0.283965,-0.581192,0.762614,0.000000,-0.333840,0.683270,0.649379,0.000000,-2132290.039683,4364155.164735,4119918.215666,1],    "boundingVolume": {    "region": [2.025225,0.706730,2.025326,0.706804,0.000000,29.412956]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/9_1819945.b3dm"}}}