{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949252,-0.314516,0.000000,0.000000,0.175828,-0.530673,0.829139,0.000000,-0.260228,0.785404,0.561625,0.000000,-1661523.282493,5014711.004623,3561901.257766,1],    "boundingVolume": {    "region": [1.890693,0.596307,1.890792,0.596389,0.000000,5.645177]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/13_1416411.b3dm"}}}