{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950644,-0.310283,0.000000,0.000000,0.173298,-0.530948,0.829495,0.000000,-0.256837,0.786896,0.561096,0.000000,-1639872.800130,5024229.750360,3558541.902611,1],    "boundingVolume": {    "region": [1.886230,0.595652,1.886345,0.595767,0.000000,8.452153]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/9/12_1343910.b3dm"}}}