{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944315,-0.329043,0.000000,0.000000,0.183960,-0.527943,0.829117,0.000000,-0.272240,0.781298,0.561657,0.000000,-1738223.543378,4988495.951727,3562106.657497,1],    "boundingVolume": {    "region": [1.906029,0.596350,1.906144,0.596424,0.000000,8.810633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/6_131644.b3dm"}}}