{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950513,-0.310683,0.000000,0.000000,0.173770,-0.531635,0.828956,0.000000,-0.257000,0.786272,0.561896,0.000000,-1640914.350201,5020259.913479,3563626.564492,1],    "boundingVolume": {    "region": [1.886659,0.596627,1.886757,0.596726,0.000000,14.464368]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/7_1394451.b3dm"}}}