{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950821,-0.309741,0.000000,0.000000,0.173131,-0.531466,0.829198,0.000000,-0.256296,0.786759,0.561537,0.000000,-1636417.280604,5023359.459339,3561341.286206,1],    "boundingVolume": {    "region": [1.885644,0.596132,1.885790,0.596351,0.000000,8.774613]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/14_1338978.b3dm"}}}