From 26e69ec4ba0a8584e114cca0bcdc071245e6ddfd Mon Sep 17 00:00:00 2001
From: Olivier Couet <Olivier.Couet@cern.ch>
Date: Tue, 20 Mar 2012 13:02:53 +0000
Subject: [PATCH] New method DivideSquare a canvas in to n sub-pads. The
number of sub-pads along the X and Y axis are computed according to the
square root of n.
git-svn-id: http://root.cern.ch/svn/root/trunk@43408 27541ba8-7e3a-0410-8455-c3a389f83636
---
graf2d/gpad/inc/TPad.h | 3 ++-
graf2d/gpad/src/TPad.cxx | 22 ++++++++++++++++++++++
2 files changed, 24 insertions(+), 1 deletion(-)
diff --git a/graf2d/gpad/inc/TPad.h b/graf2d/gpad/inc/TPad.h
index 5ba1423f61e..d288550f97b 100644
--- a/graf2d/gpad/inc/TPad.h
+++ b/graf2d/gpad/inc/TPad.h
@@ -173,6 +173,7 @@ public:
virtual void CopyPixmaps();
virtual void DeleteExec(const char *name);
virtual void Divide(Int_t nx=1, Int_t ny=1, Float_t xmargin=0.01, Float_t ymargin=0.01, Int_t color=0); // *MENU*
+ virtual void DivideSquare(Int_t n, Float_t xmargin=0.01, Float_t ymargin=0.01, Int_t color=0);
virtual void Draw(Option_t *option="");
virtual void DrawClassObject(const TObject *obj, Option_t *option="");
static void DrawColorTable();
@@ -373,7 +374,7 @@ public:
virtual TVirtualViewer3D *GetViewer3D(Option_t * type = "");
virtual Bool_t HasViewer3D() const { return (fViewer3D); }
virtual void ReleaseViewer3D(Option_t * type = "");
-
+
virtual void RecordPave(const TObject *obj); // *SIGNAL*
virtual void RecordLatex(const TObject *obj); // *SIGNAL*
virtual void EventPave() { Emit("EventPave()"); } // *SIGNAL*
diff --git a/graf2d/gpad/src/TPad.cxx b/graf2d/gpad/src/TPad.cxx
index f8d2bb355ff..496096d86c2 100644
--- a/graf2d/gpad/src/TPad.cxx
+++ b/graf2d/gpad/src/TPad.cxx
@@ -1180,6 +1180,28 @@ void TPad::Divide(Int_t nx, Int_t ny, Float_t xmargin, Float_t ymargin, Int_t co
}
+//______________________________________________________________________________
+void TPad::DivideSquare(Int_t n, Float_t xmargin, Float_t ymargin, Int_t color)
+{
+ // "n" is the total number of sub-pads. The number of sub-pads along the X
+ // and Y axis are computed according to the square root of n.
+
+ Int_t w = 1, h = 1;
+
+ if (fCanvas->GetWindowWidth() > fCanvas->GetWindowHeight()) {
+ w = TMath::Ceil(TMath::Sqrt(n));
+ h = TMath::Floor(TMath::Sqrt(n));
+ if (w*h < n) w++;
+ } else {
+ h = TMath::Ceil(TMath::Sqrt(n));
+ w = TMath::Floor(TMath::Sqrt(n));
+ if (w*h < n) h++;
+ }
+
+ Divide( w, h, xmargin, ymargin, color);
+}
+
+
//______________________________________________________________________________
void TPad::Draw(Option_t *option)
{
--
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