{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.943873,-0.330309,0.000000,0.000000,0.184193,-0.526341,0.830083,0.000000,-0.273609,0.781851,0.560221,0.000000,-1746951.174114,4992000.193804,3552977.652855,1],    "boundingVolume": {    "region": [1.907372,0.594562,1.907481,0.594742,0.000000,8.324969]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/15_1241888.b3dm"}}}