{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950588,-0.310456,0.000000,0.000000,0.173158,-0.530194,0.830006,0.000000,-0.257140,0.787339,0.560335,0.000000,-1641802.323847,5027043.934832,3553707.080187,1],    "boundingVolume": {    "region": [1.886378,0.594718,1.886561,0.594864,0.000000,8.408806]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/12_1375432.b3dm"}}}