{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.944033,-0.329850,0.000000,0.000000,0.184394,-0.527735,0.829153,0.000000,-0.272920,0.781099,0.561604,0.000000,-1742562.472432,4987224.200736,3561769.751557,1],    "boundingVolume": {    "region": [1.906893,0.596266,1.906989,0.596380,0.000000,8.545889]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1250870.b3dm"}}}