{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949057,-0.315106,0.000000,0.000000,0.176148,-0.530535,0.829159,0.000000,-0.260722,0.785261,0.561595,0.000000,-1664681.722174,5013797.578080,3561713.669592,1],    "boundingVolume": {    "region": [1.891296,0.596259,1.891433,0.596366,0.000000,8.415152]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12_1372810.b3dm"}}}