{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950514,-0.310683,0.000000,0.000000,0.173768,-0.531633,0.828958,0.000000,-0.257000,0.786274,0.561893,0.000000,-1640914.412134,5020271.928846,3563609.722768,1],    "boundingVolume": {    "region": [1.886659,0.596624,1.886756,0.596722,0.000000,14.464368]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1328170.b3dm"}}}