{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950394,-0.311049,0.000000,0.000000,0.173919,-0.531400,0.829075,0.000000,-0.257340,0.786287,0.561719,0.000000,-1643085.687473,5020353.377483,3562501.817715,1],    "boundingVolume": {    "region": [1.887045,0.596413,1.887142,0.596512,0.000000,8.665967]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/4_1389346.b3dm"}}}