{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949102,-0.314968,0.000000,0.000000,0.176058,-0.530521,0.829187,0.000000,-0.260617,0.785326,0.561553,0.000000,-1664009.309266,5014211.325097,3561447.213121,1],    "boundingVolume": {    "region": [1.891150,0.596208,1.891288,0.596315,0.000000,8.262762]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1447065.b3dm"}}}