Try
sap.ui.getCore().byId("oVizFrameLine").setVizProperties({plotArea:{
window:{start: "firstDataPoint", end: "lastDataPoint"}
}})
info can be found on https://sapui5.hana.ondemand.com/docs/vizdocs/index.html#reference/chartProperty/Charts/Line%20%20(3)/Line%20Chart%20for…