{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948887,-0.315617,0.000000,0.000000,0.176471,-0.530552,0.829079,0.000000,-0.261120,0.785045,0.561713,0.000000,-1667219.041463,5012418.882573,3562462.256013,1],    "boundingVolume": {    "region": [1.891834,0.596401,1.891971,0.596508,0.000000,8.756069]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/14_1113974.b3dm"}}}