Index: trunk/Mars/macros/fact/plotBiasOffset.C
===================================================================
--- trunk/Mars/macros/fact/plotBiasOffset.C	(revision 15216)
+++ trunk/Mars/macros/fact/plotBiasOffset.C	(revision 15216)
@@ -0,0 +1,58 @@
+void plotBiasOffset()
+{
+    PixelMap map;
+    if (!map.Read("/home/fact/operation/FACTmap111030.txt"))
+        return;
+
+    BiasMap bias;
+    if (!bias.Read("/home/fact/operation/GAPDmap_with_spare_module.txt"))
+        return;
+
+    MGeomCamFACT fact;
+
+    MHCamera h1(fact);
+    MHCamera h2(fact);
+    MHCamera h3(fact);
+    MHCamera h4(fact);
+
+    h1.SetName("Vnom [V]");
+    h2.SetName("Voff [V]");
+    h3.SetName("Vnom+Voff [DAC]");
+    h4.SetName("Voff [-0.12V/0.19V]");
+
+    h1.SetAllUsed();
+    h2.SetAllUsed();
+    h3.SetAllUsed();
+    h4.SetAllUsed();
+
+    for (int i=0; i<1440; i++)
+    {
+        // Get entry corresponding to pixel index
+        PixelMapEntry &pix = map.index(i);
+
+        // Get entry corresponding to pixel
+        BiasMapEntry &ch = bias.hv(pix);
+
+        h1.SetBinContent(i+1,  ch.Vnom); // Volt
+        h2.SetBinContent(i+1,  ch.Voff); // Volt
+        h3.SetBinContent(i+1, (ch.Vnom+ch.Voff)*4096/90.); // DAC counts
+        h4.SetBinContent(i+1,  ch.Voff); // Volt
+    }
+
+
+    TCanvas *c = new TCanvas;
+    c->Divide(2,2);
+
+    c->cd(1);
+    h1.DrawCopy();
+
+    c->cd(2);
+    h2.DrawCopy();
+
+    c->cd(3);
+    h3.DrawCopy();
+
+    c->cd(4);
+    h4.SetMinMax(-0.12, 0.19);
+    h4.DrawCopy();
+}