{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950708,-0.310087,0.000000,0.000000,0.173218,-0.531078,0.829429,0.000000,-0.256654,0.786886,0.561194,0.000000,-1638702.324038,5024165.972533,3559166.876032,1],    "boundingVolume": {    "region": [1.886023,0.595771,1.886139,0.595885,0.000000,8.784505]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/7/13_1425185.b3dm"}}}