{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943242,-0.332105,0.000000,0.000000,0.186169,-0.528756,0.828105,0.000000,-0.274436,0.779449,0.563156,0.000000,-1752248.389012,4976717.741910,3571633.360801,1],    "boundingVolume": {    "region": [1.909259,0.598151,1.909403,0.598249,0.000000,8.663240]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/4_1284969.b3dm"}}}