{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944025,-0.329874,0.000000,0.000000,0.184407,-0.527731,0.829152,0.000000,-0.272940,0.781092,0.561605,0.000000,-1742688.369471,4987176.466992,3561774.957225,1],    "boundingVolume": {    "region": [1.906919,0.596267,1.907014,0.596381,0.000000,8.545889]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1250866.b3dm"}}}