{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950588,-0.310455,0.000000,0.000000,0.173586,-0.531506,0.829077,0.000000,-0.256849,0.786450,0.561716,0.000000,-1639948.700025,5021392.598733,3562482.752042,1],    "boundingVolume": {    "region": [1.886419,0.596409,1.886517,0.596508,0.000000,11.800449]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/4_1389302.b3dm"}}}