ScatterPlotItem with x log scale

[Omar]

HI, I am trying to plot a line and a map (with scatterplotitem) both with log scale in the x-axis;

......

plot_psdSRC = pg.PlotWidget()

plot_psdSRC.setLogMode(True,False)

spect=pg.ScatterPlotItem(size=10, pen=pg.mkPen(None), brush=pg.mkBrush(255, 255, 255, 120))

plot_psdSRC.plot(freqvalS[1:],specS[1:],pen='m')

 val=[]

 val.append({'pos': [0.1,100],'data':1, 'size':8.0,'brush':'w'})

 spect.addPoints(val)

....

this line plots fine:

plot_psdSRC.plot(freqvalS[1:],specS[1:],pen='m')

but 

 spect.addPoints(val)

puts the dot at x=1,y=100

Any ideas?

[Omar]

I found that position of the points are (after plot_psdSRC.setLogMode(True,False)) reference to log10

I did this and worked:

    for ii in range(len(l_pdf)):

        val.append({'pos': [np.log10(xx[ii]),yy[ii]],'data':1, 'size':4.0,'brush':colors[ii]})