Changeset 3227 for trunk/MagicSoft/Mars/mgui/MHexagon.cc

Timestamp:

02/18/04 15:45:12 (21 years ago)

Author:

moralejo

Message:

*** empty log message ***

File:

• trunk/MagicSoft/Mars/mgui/MHexagon.cc (modified) (1 diff)

trunk/MagicSoft/Mars/mgui/MHexagon.cc

@@ -166 +166 @@
     const Double_t disthex = TMath::Sqrt(dx*dx + dy*dy);
 
+    //
+    // Now check if point is outside of hexagon; just check x coordinate
+    // in three coordinate systems: the default one, in which two sides of
+    // the hexagon are paralel to the y axis (see camera displays) and two 
+    // more, rotated with respect to that one by +- 60 degrees. The values
+    // 0.5 and 0.866025403784438597 are the sine and cosine of 60 degrees.
+    //
+
     if (TMath::Abs(dx) > fD/2.)
       return disthex;