{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950530,-0.310633,0.000000,0.000000,0.173254,-0.530153,0.830013,0.000000,-0.257289,0.787298,0.560326,0.000000,-1642750.124786,5026777.352688,3553646.574622,1],    "boundingVolume": {    "region": [1.886564,0.594706,1.886747,0.594852,0.000000,8.229633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/12_1375453.b3dm"}}}