{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949098,-0.314981,0.000000,0.000000,0.176073,-0.530543,0.829170,0.000000,-0.260623,0.785306,0.561579,0.000000,-1664043.655497,5014082.049884,3561612.056652,1],    "boundingVolume": {    "region": [1.891164,0.596240,1.891302,0.596346,0.000000,8.089963]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1372844.b3dm"}}}