{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944306,-0.329069,0.000000,0.000000,0.183968,-0.527920,0.829130,0.000000,-0.272266,0.781303,0.561638,0.000000,-1738385.683227,4988527.980229,3561983.507281,1],    "boundingVolume": {    "region": [1.906056,0.596326,1.906171,0.596401,0.000000,8.810633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_191720.b3dm"}}}