{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950165,-0.311749,0.000000,0.000000,0.173874,-0.529941,0.830018,0.000000,-0.258215,0.787000,0.560318,0.000000,-1648661.662586,5024877.632150,3553595.985858,1],    "boundingVolume": {    "region": [1.887747,0.594704,1.887911,0.594835,0.000000,8.743291]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/8_1376817.b3dm"}}}