ROOT
v6-26
Reference Guide
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graphstruct.C
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1
/// \file
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/// \ingroup tutorial_graphs
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/// \notebook
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/// Draw a simple graph structure.
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/// The graph layout is made using graphviz. This macro creates some
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/// nodes and edges and change a few graphical attributes on some of them.
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///
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/// \macro_image
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/// \macro_code
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///
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/// \author Olivier Couet
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TCanvas
* graphstruct()
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{
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TGraphStruct
*gs =
new
TGraphStruct
();
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// create some nodes and put them in the graph in one go ...
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TGraphNode
*n0 = gs->
AddNode
(
"n0"
,
"Node 0"
);
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TGraphNode
*n1 = gs->
AddNode
(
"n1"
,
"First node"
);
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TGraphNode
*n2 = gs->
AddNode
(
"n2"
,
"Second node"
);
21
TGraphNode
*n3 = gs->
AddNode
(
"n3"
,
"Third node"
);
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TGraphNode
*n4 = gs->
AddNode
(
"n4"
,
"Fourth node"
);
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TGraphNode
*n5 = gs->
AddNode
(
"n5"
,
"5th node"
);
24
TGraphNode
*n6 = gs->
AddNode
(
"n6"
,
"Node number six"
);
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TGraphNode
*n7 = gs->
AddNode
(
"n7"
,
"Node 7"
);
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TGraphNode
*n8 = gs->
AddNode
(
"n8"
,
"Node 8"
);
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TGraphNode
*n9 = gs->
AddNode
(
"n9"
,
"Node 9"
);
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n4->
SetTextSize
(0.03);
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n6->
SetTextSize
(0.03);
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n2->
SetTextSize
(0.04);
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n3->
SetTextFont
(132);
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n0->
SetTextColor
(
kRed
);
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n9->
SetFillColor
(
kRed
-10);
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n0->
SetFillColor
(
kYellow
-9);
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n7->
SetFillColor
(
kViolet
-9);
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// some edges ...
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gs->
AddEdge
(n0,n1)->SetLineColor(
kRed
);
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TGraphEdge
*e06 = gs->
AddEdge
(n0,n6);
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e06->
SetLineColor
(
kRed
-3);
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e06->
SetLineWidth
(4);
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gs->
AddEdge
(n1,n7);
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gs->
AddEdge
(n4,n6);
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gs->
AddEdge
(n3,n9);
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gs->
AddEdge
(n6,n8);
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gs->
AddEdge
(n7,n2);
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gs->
AddEdge
(n8,n3);
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gs->
AddEdge
(n2,n3);
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gs->
AddEdge
(n9,n0);
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gs->
AddEdge
(n1,n4);
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gs->
AddEdge
(n1,n6);
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gs->
AddEdge
(n2,n5);
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gs->
AddEdge
(n3,n6);
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gs->
AddEdge
(n4,n5);
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TCanvas
*
c
=
new
TCanvas
(
"c"
,
"c"
,800,600);
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c
->SetFillColor(38);
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gs->
Draw
();
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return
c
;
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}
c
#define c(i)
Definition
RSha256.hxx:101
kRed
@ kRed
Definition
Rtypes.h:66
kYellow
@ kYellow
Definition
Rtypes.h:66
kViolet
@ kViolet
Definition
Rtypes.h:67
TAttFill::SetFillColor
virtual void SetFillColor(Color_t fcolor)
Set the fill area color.
Definition
TAttFill.h:37
TAttLine::SetLineWidth
virtual void SetLineWidth(Width_t lwidth)
Set the line width.
Definition
TAttLine.h:43
TAttLine::SetLineColor
virtual void SetLineColor(Color_t lcolor)
Set the line color.
Definition
TAttLine.h:40
TAttText::SetTextColor
virtual void SetTextColor(Color_t tcolor=1)
Set the text color.
Definition
TAttText.h:44
TAttText::SetTextFont
virtual void SetTextFont(Font_t tfont=62)
Set the text font.
Definition
TAttText.h:46
TAttText::SetTextSize
virtual void SetTextSize(Float_t tsize=1)
Set the text size.
Definition
TAttText.h:47
TCanvas
The Canvas class.
Definition
TCanvas.h:23
TGraphEdge
An edge object connecting two nodes which can be added in a TGraphStruct.
Definition
TGraphEdge.h:25
TGraphNode
A graph node object which can be added in a TGraphStruct.
Definition
TGraphNode.h:27
TGraphStruct
The Graph Structure is an interface to the graphviz package.
Definition
TGraphStruct.h:24
TGraphStruct::AddNode
void AddNode(TGraphNode *node)
Add the node "node" in this TGraphStruct.
Definition
TGraphStruct.cxx:114
TGraphStruct::Draw
void Draw(Option_t *option="")
Draw the graph.
Definition
TGraphStruct.cxx:158
TGraphStruct::AddEdge
void AddEdge(TGraphEdge *edge)
Add the edge "edge" in this TGraphStruct.
Definition
TGraphStruct.cxx:88
tutorials
graphs
graphstruct.C
ROOT v6-26 - Reference Guide Generated on Mon Sep 11 2023 21:03:02 (GVA Time) using Doxygen 1.9.8