{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950205,-0.311626,0.000000,0.000000,0.174211,-0.531201,0.829142,0.000000,-0.257838,0.786195,0.561620,0.000000,-1646266.470712,5019761.129535,3561872.114107,1],    "boundingVolume": {    "region": [1.887631,0.596238,1.887770,0.596447,0.000000,8.265898]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/2_1331605.b3dm"}}}