{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949736,-0.313053,0.000000,0.000000,0.174965,-0.530807,0.829236,0.000000,-0.259048,0.785896,0.561481,0.000000,-1653990.590206,5017851.936860,3560989.676435,1],    "boundingVolume": {    "region": [1.889126,0.596091,1.889279,0.596259,0.000000,19.004798]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/4_1435824.b3dm"}}}