{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948748,-0.316033,0.000000,0.000000,0.116216,-0.348887,0.929931,0.000000,-0.293620,0.881465,0.369874,0.000000,-1873608.575528,5624679.894970,2344388.457951,1],    "boundingVolume": {    "region": [1.892289,0.378839,1.892394,0.378908,0.000000,7.337532]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/16/20_12860.b3dm"}}}