{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Multigraph tutorial\n",
"
"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### The Canvas\n",
"To begin with, we must create a canvas on which to put our multigraph (which we will create using the class TMultiGraph)."
]
},
{
"cell_type": "code",
"execution_count": 1,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"TCanvas c1(\"c1\",\"multigraph\",700,500);\n",
"c1.SetGrid();\n",
"TMultiGraph mg(\"mg\",\"mg\");"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### Graph 1\n",
"We then create our first graph."
]
},
{
"cell_type": "code",
"execution_count": 2,
"metadata": {
"collapsed": false
},
"outputs": [],
"source": [
"std::vector px1 {-0.1, 0.05, 0.25, 0.35, 0.5, 0.61,0.7,0.85,0.89,0.95};\n",
"std::vector py1 {-1,2.9,5.6,7.4,9,9.6,8.7,6.3,4.5,1};\n",
"std::vector ex1 {.05,.1,.07,.07,.04,.05,.06,.07,.08,.05};\n",
"std::vector ey1 {.8,.7,.6,.5,.4,.4,.5,.6,.7,.8};\n",
"const Int_t n1 = px1.size();\n",
"TGraphErrors gr1(n1,px1.data(),py1.data(),ex1.data(),ey1.data());\n",
"gr1.SetMarkerColor(kBlue);\n",
"gr1.SetMarkerStyle(21);\n",
"mg.Add(&gr1);"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### Graph 2\n",
"We then create our second one."
]
},
{
"cell_type": "code",
"execution_count": 3,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"std::vector x2 {-0.28, 0.005, 0.19, 0.29, 0.45, 0.56,0.65,0.80,0.90,1.01};\n",
"std::vector y2 {2.1,3.86,7,9,10,10.55,9.64,7.26,5.42,2};\n",
"std::vector ex2 {.04,.12,.08,.06,.05,.04,.07,.06,.08,.04};\n",
"std::vector ey2 {.6,.8,.7,.4,.3,.3,.4,.5,.6,.7};\n",
"const Int_t n2 = x2.size();\n",
"TGraphErrors gr2(n2,x2.data(),y2.data(),ex2.data(),ey2.data());\n",
"gr2.SetMarkerColor(kRed);\n",
"gr2.SetMarkerStyle(20);\n",
"mg.Add(&gr2);"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"### End Product\n",
"We add the two graphs onto our canvas, and update it."
]
},
{
"cell_type": "code",
"execution_count": 4,
"metadata": {
"collapsed": false
},
"outputs": [],
"source": [
"mg.Draw(\"APL\");\n",
"mg.GetXaxis()->SetTitle(\"X values\");\n",
"mg.GetYaxis()->SetTitle(\"Y values\");"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"We finally display the canvas."
]
},
{
"cell_type": "code",
"execution_count": 5,
"metadata": {
"collapsed": false
},
"outputs": [
{
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"\n",
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\n",
"\n",
"\n"
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""
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"source": [
"%jsroot on\n",
"c1.Draw()"
]
}
],
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"kernelspec": {
"display_name": "ROOT C++",
"language": "c++",
"name": "root"
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