{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950702,-0.310107,0.000000,0.000000,0.173230,-0.531074,0.829428,0.000000,-0.256671,0.786880,0.561195,0.000000,-1638808.801686,5024129.642946,3559169.118296,1],    "boundingVolume": {    "region": [1.886044,0.595771,1.886160,0.595886,0.000000,8.784505]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1425189.b3dm"}}}