{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950520,-0.310664,0.000000,0.000000,0.173895,-0.532055,0.828660,0.000000,-0.256891,0.785995,0.562334,0.000000,-1640222.798434,5018495.797843,3566409.840288,1],    "boundingVolume": {    "region": [1.886639,0.597156,1.886736,0.597255,0.000000,14.349765]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/12_1384719.b3dm"}}}