Info in : ROOT: Rint, ver: 6.29/01,
build time: 20230731 2159, tversion 1150
Hi all, I need to plot a set of Graph with TScatter, I need to set all Graphs with the same scatter.
the TScatter seems to auto scatter the marker size when drawing.
further more, some of my TScatter has only 1 points, how can I set the size.
code like below
#include <TCanvas.h>
#include <TScatter.h>
void scatter5()
{
const int n = 2;
double x[2] = {0,10};
double y[2] = {0,10};
double c[2] = {1874.1, 1888};
double s[2] = {2,10};// change the size here
TScatter * s1 = new TScatter(n, x, y, c, s);
s1->SetMarkerStyle(kFullCircle);
s1->SetMarkerSize(1);
s1->SetMaxMarkerSize(3); //set auto scatter drawing size
s1->SetMinMarkerSize(1);
//s1->SetScale(2);
s1->Print();
new TCanvas();
auto hf = gPad->DrawFrame(-80, -80, 80, 80);
s1->Draw("P");
}
I’ve multi TScatters, I need to draw them with same scatter marker size,
for example scatter[1] has size {1, 2}, scatter[2] has marker size{2, 4},
but when I draw them, they auto scatter and looks like the same.
I want to set scatter[2] points larger than scatter[1]
{
const int n = 2;
double x[2] = {0,10};
double y[2] = {0,10};
double c[2] = {1874.1, 1888};
double s[2] = {1,2};
TScatter * s1 = new TScatter(n, x, y, c);
s1->SetMarkerStyle(kFullCircle);
s1->SetMaxMarkerSize(2);
s1->SetMinMarkerSize(1);
}
and picture2
{
const int n = 2;
double x[2] = {0,10};
double y[2] = {0,10};
double c[2] = {1874.1, 1888};
double s[2] = {2,4};
TScatter * s1 = new TScatter(n, x, y, c);
s1->SetMarkerStyle(kFullCircle);
s1->SetMaxMarkerSize(4); //must change this to set it larger than picture 1
s1->SetMinMarkerSize(2);
}
I must change with SetMaxMarkerSize and SetMinMarkerSize .
Or the pic1 and pic2 looks like the same, because the Scatter will auto scatter the size of each marker.
can I set the feature OFF.
{
c1->cd(1);
const int n = 2;
double x[2] = {0,10};
double y[2] = {0,10};
double c[2] = {1874.1, 1888};
double s[2] = {2,4};// change the size here
TScatter * s1 = new TScatter(n, x, y, c, s);
s1->SetMarkerStyle(kFullCircle);
s1->SetMaxMarkerSize(4);
s1->SetMinMarkerSize(2);
auto hf = gPad->DrawFrame(-80, -80, 80, 80);
s1->Draw("P");
}
{
c1->cd(2);
const int n = 2;
double x[2] = {0,10};
double y[2] = {0,10};
double c[2] = {1874.1, 1888};
double s[2] = {1,2};// change the size here
TScatter * s1 = new TScatter(n, x, y, c, s);
s1->SetMarkerStyle(kFullCircle);
s1->SetMaxMarkerSize(2);
// I must set one-by-one each picture.
s1->SetMinMarkerSize(1);
auto hf = gPad->DrawFrame(-80, -80, 80, 80);
s1->Draw("P");
}
If I don’t set SetMaxMarkerSize, the drawing will auto scatter with max and min.
so what I want is to disable the auto scatter feature. without calculate the max and min size one-by-one.
So you have the marker size as 4th variable for both plots. In that case, the size of the marker will go from SetMinMarkerSize to SetMaxMarkerSize… that’s the marker size dynamic like you have the color dynamic as the color map for the colors. The value you give in the size array will be mapped on this integer range.
