Changeset 9947 for trunk/Mars/msimreflector/MMirrorHex.cc

Timestamp:

09/29/10 08:07:08 (14 years ago)

Author:

tbretz

Message:

Implemented a new mirror type MMirrorHex90 and a possibility to write a file with a relfector definition.

File:

• trunk/Mars/msimreflector/MMirrorHex.cc (modified) (1 diff)

trunk/Mars/msimreflector/MMirrorHex.cc

@@ -184 +184 @@
     return 1;
 }
+
+// ------------------------------------------------------------------------
+//
+void MMirrorHex::WriteM(ostream &out) const
+{
+    out << fD*2;
+}
+
+// ------------------------------------------------------------------------
+//
+// Check if the given position coincides with the mirror. The position
+// is assumed to be the incident point on the mirror's surface.
+//
+// The coordinates are in the mirrors coordinate frame.
+//
+// The action should coincide with what is painted in Paint()
+//
+Bool_t MMirrorHex90::HasHit(const MQuaternion &p) const
+{
+    // p is the incident point in the mirror in the mirror's
+    // coordinate frame
+
+    // Black spot in the mirror center (here we can fairly ignore
+    // the distance from the plane to the mirror surface, as long
+    // as the black spot does not become too large)
+    if (p.R2()<0.5*0.5)
+        return kFALSE;
+
+    //
+    // 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.
+    //
+    if (TMath::Abs(p.Y())>fD)
+        return kFALSE;
+
+    const Double_t dxs = p.X()*fgSin60;
+    const Double_t dyc = p.Y()*fgCos60;
+
+    if (TMath::Abs(dxs+dyc)>fD)
+        return kFALSE;
+
+    if (TMath::Abs(dxs-dyc)>fD)
+        return kFALSE;
+
+    return kTRUE;
+}
+
+// ------------------------------------------------------------------------
+//
+// Paint the mirror in x/y.
+//
+// The graphic should coincide with the action in HasHit
+//
+void MMirrorHex90::Paint(Option_t *opt)
+{
+    MHexagon h;
+    TEllipse e;
+    h.SetFillColor(18);
+    if (!TString(opt).Contains("line", TString::kIgnoreCase))
+    {
+        h.SetFillColor(17);
+        h.SetLineStyle(0);
+        e.SetLineStyle(0);
+        e.SetFillColor(gPad->GetFillColor());
+    }
+
+    if (TString(opt).Contains("same", TString::kIgnoreCase))
+    {
+        h.SetFillStyle(0);
+        e.SetFillStyle(0);
+    }
+
+    h.PaintHexagon(X(), Y(), fD*2, TMath::Pi()/2);
+
+    if (!TString(opt).Contains("border", TString::kIgnoreCase))
+        e.PaintEllipse(X(), Y(), 0.5, 0.5, 0, 360, 0);
+}