{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943842,-0.330397,0.000000,0.000000,0.184532,-0.527151,0.829493,0.000000,-0.273486,0.781264,0.561098,0.000000,-1746173.226310,4988270.122390,3558556.924779,1],    "boundingVolume": {    "region": [1.907473,0.595655,1.907569,0.595770,0.000000,8.807456]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/7_1297535.b3dm"}}}