{
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"source": [
"# gr102_reverse_graph\n",
"\n",
"\n",
"\n",
"\n",
"**Author:** Olivier Couet \n",
"This notebook tutorial was automatically generated with ROOTBOOK-izer from the macro found in the ROOT repository on Tuesday, May 19, 2026 at 08:38 PM."
]
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{
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"source": [
"auto c = new TCanvas(\"c\",\"Reversed graphs\",0,0,900,400);\n",
"c->Divide(2,1); //Create a canvas with a 2x1 grid layout\n",
"\n",
"auto gr = new TGraph();\n",
"gr->GetXaxis()->SetNdivisions(514);\n",
"gr->GetYaxis()->SetNdivisions(514);\n",
"gr->SetMarkerStyle(kCircle);\n",
"gr->SetMarkerColor(kBlue);\n",
"gr->SetLineColor(kRed);\n",
"gr->SetPoint(0,5,5);\n",
"gr->SetPoint(1,9,9);\n",
"gr->SetPoint(2,14,14);\n",
"\n",
"\n",
"c->cd(1);\n",
"gPad->SetGrid();\n",
"gr->Draw(\"a pl \"); //Plot with axis (\"a\") and line+points (\"pl\")\n",
"\n",
"c->cd(2);\n",
"gPad->SetGrid();\n",
"gr->Draw(\"a pl rx ry \"); //Plot with axis (\"a\") and line+points (\"pl\") with reverse X and Y axes"
]
},
{
"cell_type": "markdown",
"id": "6b2b1fb8",
"metadata": {},
"source": [
"Draw all canvases "
]
},
{
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"execution_count": 2,
"id": "0dfd8f43",
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"collapsed": false,
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"shell.execute_reply": "2026-05-19T20:38:13.068245Z"
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{
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],
"source": [
"gROOT->GetListOfCanvases()->Draw()"
]
}
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