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{
//
// This macro displays the Tree data structures
//Author: Rene Brun
gROOT->Reset();
c1 = new TCanvas("c1","Tree Data Structure",200,10,750,940);
c1->Range(0,-0.1,1,1.15);
gBenchmark->Start("tree");
Int_t branchcolor = 26;
Int_t leafcolor = 30;
Int_t basketcolor = 42;
Int_t offsetcolor = 43;
TPaveLabel title(.3,1.05,.8,1.13,c1->GetTitle());
title.SetFillColor(16);
title.Draw();
TPaveText tree(.01,.75,.15,1.00);
tree.SetFillColor(18);
tree.SetTextAlign(12);
TText *tnt = tree.AddText("Tree");
tnt.SetTextAlign(22);
tnt.SetTextSize(0.030);
tree.AddText("fScanField");
tree.AddText("fMaxEventLoop");
tree.AddText("fMaxVirtualSize");
tree.AddText("fEntries");
tree.AddText("fDimension");
tree.AddText("fSelectedRows");
tree.Draw();
TPavesText farm(.01,1.02,.15,1.1,9,"tr");
TText *tfarm = farm.AddText("CHAIN");
tfarm.SetTextSize(0.024);
farm.AddText("Collection");
farm.AddText("of Trees");
farm.Draw();
TLine link(.15,.92,.80,.92);
link.SetLineWidth(2);
link.SetLineColor(1);
link.Draw();
link.DrawLine(.21,.87,.21,.275);
link.DrawLine(.23,.87,.23,.375);
link.DrawLine(.25,.87,.25,.775);
link.DrawLine(.41,.25,.41,-.025);
link.DrawLine(.43,.25,.43,.075);
link.DrawLine(.45,.25,.45,.175);
TPaveLabel branch0(.20,.87,.35,.97,"Branch 0");
branch0.SetTextSize(0.35);
branch0.SetFillColor(branchcolor);
branch0.Draw();
TPaveLabel branch1(.40,.87,.55,.97,"Branch 1");
branch1.SetTextSize(0.35);
branch1.SetFillColor(branchcolor);
branch1.Draw();
TPaveLabel branch2(.60,.87,.75,.97,"Branch 2");
branch2.SetTextSize(0.35);
branch2.SetFillColor(branchcolor);
branch2.Draw();
TPaveLabel branch3(.80,.87,.95,.97,"Branch 3");
branch3.SetTextSize(0.35);
branch3.SetFillColor(branchcolor);
branch3.Draw();
TPaveLabel leaf0(.4,.75,.5,.8,"Leaf 0");
leaf0.SetFillColor(leafcolor);
leaf0.Draw();
TPaveLabel leaf1(.6,.75,.7,.8,"Leaf 1");
leaf1.SetFillColor(leafcolor);
leaf1.Draw();
TPaveLabel leaf2(.8,.75,.9,.8,"Leaf 2");
leaf2.SetFillColor(leafcolor);
leaf2.Draw();
TPaveText firstevent(.4,.35,.9,.4);
firstevent.AddText("First event of each basket");
firstevent.AddText("Array of fMaxBaskets Integers");
firstevent.SetFillColor(basketcolor);
firstevent.Draw();
TPaveLabel basket0(.4,.25,.5,.3,"Basket 0");
basket0.SetFillColor(basketcolor);
basket0.Draw();
TPaveLabel basket1(.6,.25,.7,.3,"Basket 1");
basket1.SetFillColor(basketcolor);
basket1.Draw();
TPaveLabel basket2(.8,.25,.9,.3,"Basket 2");
basket2.SetFillColor(basketcolor);
basket2.Draw();
TPaveText offset(.55,.15,.9,.2);
offset.AddText("Offset of events in fBuffer");
offset.AddText("Array of fEventOffsetLen Integers");
offset.AddText("(if variable length structure)");
offset.SetFillColor(offsetcolor);
offset.Draw();
TPaveText buffer(.55,.05,.9,.1);
buffer.AddText("Basket buffer");
buffer.AddText("Array of fBasketSize chars");
buffer.SetFillColor(offsetcolor);
buffer.Draw();
TPaveText zipbuffer(.55,-.05,.75,.0);
zipbuffer.AddText("Basket compressed buffer");
zipbuffer.AddText("(if compression)");
zipbuffer.SetFillColor(offsetcolor);
zipbuffer.Draw();
TArrow ar1;
ar1.SetLineWidth(2);
ar1.SetLineColor(1);
ar1.SetFillStyle(1001);
ar1.SetFillColor(1);
ar1.DrawArrow(.21,.275,.39,.275,0.015,"|>");
ar1.DrawArrow(.23,.375,.39,.375,0.015,"|>");
ar1.DrawArrow(.25,.775,.39,.775,0.015,"|>");
ar1.DrawArrow(.50,.775,.59,.775,0.015,"|>");
ar1.DrawArrow(.70,.775,.79,.775,0.015,"|>");
ar1.DrawArrow(.50,.275,.59,.275,0.015,"|>");
ar1.DrawArrow(.70,.275,.79,.275,0.015,"|>");
ar1.DrawArrow(.45,.175,.54,.175,0.015,"|>");
ar1.DrawArrow(.43,.075,.54,.075,0.015,"|>");
ar1.DrawArrow(.41,-.025,.54,-.025,0.015,"|>");
TLine ldot(.95,.92,.99,.92);
ldot.SetLineStyle(3);
ldot.Draw();
ldot.DrawLine(.9,.775,.99,.775);
ldot.DrawLine(.9,.275,.99,.275);
ldot.DrawLine(.55,.05,.55,0);
ldot.DrawLine(.9,.05,.75,0);
TText pname(.46,.21,"fEventOffset");
pname.SetTextFont(72);
pname.SetTextSize(0.018);
pname.Draw();
pname.DrawText(.44,.11,"fBuffer");
pname.DrawText(.42,.01,"fZipBuffer");
pname.DrawText(.26,.81,"fLeaves = TObjArray of TLeaf");
pname.DrawText(.24,.40,"fBasketEvent");
pname.DrawText(.22,.31,"fBaskets = TObjArray of TBasket");
pname.DrawText(.20,1.0,"fBranches = TObjArray of TBranch");
TPaveText ntleaf(0.30,.42,.62,.7);
ntleaf.SetTextSize(0.014);
ntleaf.SetFillColor(leafcolor);
ntleaf.SetTextAlign(12);
ntleaf.AddText("fLen: number of fixed elements");
ntleaf.AddText("fLenType: number of bytes of data type");
ntleaf.AddText("fOffset: relative to Leaf0-fAddress");
ntleaf.AddText("fNbytesIO: number of bytes used for I/O");
ntleaf.AddText("fIsPointer: True if pointer");
ntleaf.AddText("fIsRange: True if leaf has a range");
ntleaf.AddText("fIsUnsigned: True if unsigned");
ntleaf.AddText("*fLeafCount: points to Leaf counter");
ntleaf.AddText(" ");
ntleaf.AddLine(0,0,0,0);
ntleaf.AddText("fName = Leaf name");
ntleaf.AddText("fTitle = Leaf type (see Type codes)");
ntleaf.Draw();
TPaveText type(.65,.42,.95,.7);
type.SetTextAlign(12);
type.SetFillColor(leafcolor);
type.AddText(" ");
type.AddText("C : a character string");
type.AddText("B : an 8 bit signed integer");
type.AddText("b : an 8 bit unsigned integer");
type.AddText("S : a 16 bit signed short integer");
type.AddText("s : a 16 bit unsigned short integer");
type.AddText("I : a 32 bit signed integer");
type.AddText("i : a 32 bit unsigned integer");
type.AddText("F : a 32 bit floating point");
type.AddText("D : a 64 bit floating point");
type.AddText("TXXXX : a class name TXXXX");
type.Draw();
TPaveLabel typecode(.7,.68,.9,.72,"fType codes");
typecode.SetFillColor(leafcolor);
typecode.Draw();
ldot.DrawLine(.4,.75,.30,.7);
ldot.DrawLine(.5,.75,.62,.7);
TPaveText ntbasket(0.02,-0.07,0.35,.25);
ntbasket.SetFillColor(basketcolor);
ntbasket.SetTextSize(0.014);
ntbasket.SetTextAlign(12);
ntbasket.AddText("fNbytes: Size of compressed Basket");
ntbasket.AddText("fObjLen: Size of uncompressed Basket");
ntbasket.AddText("fDatime: Date/Time when written to store");
ntbasket.AddText("fKeylen: Number of bytes for the key");
ntbasket.AddText("fCycle : Cycle number");
ntbasket.AddText("fSeekKey: Pointer to Basket on file");
ntbasket.AddText("fSeekPdir: Pointer to directory on file");
ntbasket.AddText("fClassName: 'TBasket'");
ntbasket.AddText("fName: Branch name");
ntbasket.AddText("fTitle: Tree name");
ntbasket.AddText(" ");
ntbasket.AddLine(0,0,0,0);
ntbasket.AddText("fNevBuf: Number of events in Basket");
ntbasket.AddText("fLast: pointer to last used byte in Basket");
ntbasket.Draw();
ldot.DrawLine(.4,.3,0.02,0.25);
ldot.DrawLine(.5,.25,0.35,-.07);
ldot.DrawLine(.5,.3,0.35,0.25);
TPaveText ntbranch(0.02,0.40,0.18,0.68);
ntbranch.SetFillColor(branchcolor);
ntbranch.SetTextSize(0.015);
ntbranch.SetTextAlign(12);
ntbranch.AddText("fBasketSize");
ntbranch.AddText("fEventOffsetLen");
ntbranch.AddText("fMaxBaskets");
ntbranch.AddText("fEntries");
ntbranch.AddText("fAddress of Leaf0");
ntbranch.AddText(" ");
ntbranch.AddLine(0,0,0,0);
ntbranch.AddText("fName: Branchname");
ntbranch.AddText("fTitle: leaflist");
ntbranch.Draw();
ldot.DrawLine(.2,.97,.02,.68);
ldot.DrawLine(.35,.97,.18,.68);
ldot.DrawLine(.35,.87,.18,.40);
TPavesText basketstore(.8,-0.088,0.952,-0.0035,7,"tr");
basketstore.SetFillColor(28);
basketstore.AddText("Baskets");
basketstore.AddText("Stores");
basketstore.Draw();
c1->Update();
gBenchmark->Show("tree");
}
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