{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949289,-0.314406,0.000000,0.000000,0.175771,-0.530707,0.829129,0.000000,-0.260134,0.785425,0.561639,0.000000,-1660923.669861,5014844.019207,3561993.019160,1],    "boundingVolume": {    "region": [1.890578,0.596325,1.890676,0.596406,0.000000,8.812643]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/13_1416891.b3dm"}}}