Index: /trunk/Mars/macros/fact/fact_trigger.C
===================================================================
--- /trunk/Mars/macros/fact/fact_trigger.C	(revision 9877)
+++ /trunk/Mars/macros/fact/fact_trigger.C	(revision 9877)
@@ -0,0 +1,74 @@
+void fact_trigger()
+{
+    MLut lut;
+
+    // read all trigger patches
+    lut.ReadFile("resmc/fact-trigger-all.txt");
+    // read only the regular trigger patches
+    //lut.ReadFile("resmc/fact-trigger-sum.txt");
+
+    // For crosscheck print the table to the console
+    lut.Print();
+
+    // Create FACT camera geometry
+    MGeomCamFACT fact;
+
+    // create to camera histograms, one for the colors and one for the patch number
+    MHCamera h(fact);
+    MHCamera p(fact);
+    h.SetTitle("FACT trigger layout in MARS");
+
+    // remove all obsolete stuff around
+    h.SetStats(kFALSE);
+    h.SetBit(MHCamera::kNoLegend);
+
+    // Number of maximum colors
+    Int_t n = 99;
+
+    for (int i=0; i<lut.GetNumRows(); i++)
+    {
+        // Get the i-th patch
+        MArrayI &row = lut.GetRow(i);
+
+        // Check for all colors already used in the neighborhood
+        MArrayI col(n+1);
+        for (int j=0; j<9; j++)
+        {
+            if (row[j]==1438 || row[j]==1439)
+                continue;
+
+            for (int k=0; k<fact[row[j]].GetNumNeighbors(); k++)
+                col[TMath::Nint(h.GetBinContent(fact[row[j]].GetNeighbor(k)+1))]=1;
+        }
+
+        // Find the first unused color
+        int k = 1;
+        for (; k<n+1; k++)
+            if (col[k]<0.5)
+                break;
+
+        // This is just to "adjust" the colors a bit more to the palette
+        // For simplicity (rounding below) the adjustment must not exceed +- 0.5
+        // If the number of needed colors is different this needs adjustment!
+        Double_t c[99] = { 1.0, 2.4, 3.4, 4.1, 5.0 };
+
+        // Loop over all nine pixles in the patch
+        for (int j=0; j<9; j++)
+        {
+            if (row[j]==1438 || row[j]==1439)
+                continue;
+
+            h.SetBinContent(row[j]+1, c[k-1]);  // Color (For a funny symmetry replace it by row[0]%6)
+            p.SetBinContent(row[j]+1, i);       // Patch number
+            h.SetUsed(row[j]);                  // Switch on that the color is shown
+        }
+    }
+
+    // Plot the colors and the numbers on top
+    h.DrawCopy("");
+    p.DrawCopy("same integer");
+
+    // Adjust the canvas attributes
+    gPad->SetBorderMode(0);
+    gPad->SetFillColor(kWhite);
+}