{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949481,-0.313823,0.000000,0.000000,0.175425,-0.530754,0.829172,0.000000,-0.259666,0.785625,0.561575,0.000000,-1657933.382005,5016124.059333,3561586.456016,1],    "boundingVolume": {    "region": [1.889964,0.596247,1.890063,0.596329,0.000000,8.785490]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1444604.b3dm"}}}