readfunction.m

MATLAB提供的INCA_DEMO程序

function readfunction(obj, event, device, group, sample,plotAxes)

[time, data] = IncaGetRecords(device,group,sample);
userdata = get(plotAxes,'userdata');
assignin('base','time',time)
assignin('base','data',data)
try
timeP = [userdata(:,1); time];
dataP = [userdata(:,2:end); data];
catch
    timeP = time;
    dataP = data;
end

ylim = get(plotAxes,'ylim');
xgrid = get(plotAxes,'xgrid');
ygrid = get(plotAxes,'ygrid');
hold(plotAxes,'off')
plot(plotAxes,timeP ,dataP)
ylim(1) = min(min(min(data)),ylim(1));
ylim(2) = max(max(max(data)),ylim(2));
set(plotAxes,'ylim',ylim,'xlim',[timeP(1) timeP(end)])
xlabel(plotAxes,'Time')
ylabel(plotAxes,'Measured Units')
drawnow
set(plotAxes,'userdata',[timeP dataP])
set(plotAxes,'xgrid',xgrid);
set(plotAxes,'ygrid',ygrid);