Script illustrating the use of transparency with ||-Coord.
It displays the same data set twice. The first time without transparency and the second time with transparency. On the second plot, several clusters appear.
#include <cassert>
namespace GLTutorials {
Double_t r1, r2, r3, r4, r5, r6, r7, r8, r9;
void generate_random(
Int_t i)
{
r2 = (2 * dr *
r.Rndm(i)) - dr;
r3 = (2 * dr *
r.Rndm(i)) - dr;
r5 = (2 * dr *
r.Rndm(i)) - dr;
r6 = (2 * dr *
r.Rndm(i)) - dr;
r8 = (2 * dr *
r.Rndm(i)) - dr;
}
}
}
void parallelcoordtrans()
{
using namespace ROOT::GLTutorials;
TCanvas *
c1 =
new TCanvas(
"parallel coors",
"parallel coords", 0, 0, 900, 1000);
TNtuple *
const nt =
new TNtuple(
"nt",
"Demo ntuple",
"x:y:z:u:v:w:a:b:c");
for (
Int_t i = 0; i < 1500; ++i) {
r.Sphere(s1x, s1y, s1z, 0.1);
r.Sphere(s2x, s2y, s2z, 0.2);
r.Sphere(s3x, s3y, s3z, 0.05);
generate_random(i);
nt->
Fill(r1, r2, r3, r4, r5, r6, r7, r8, r9);
generate_random(i);
nt->
Fill(s1x, s1y, s1z, s2x, s2y, s2z, r7, r8, r9);
generate_random(i);
nt->
Fill(r1, r2, r3, r4, r5, r6, r7, s3y, r9);
generate_random(i);
nt->
Fill(s2x - 1, s2y - 1, s2z, s1x + .5, s1y + .5, s1z + .5, r7, r8, r9);
generate_random(i);
nt->
Fill(r1, r2, r3, r4, r5, r6, r7, r8, r9);
generate_random(i);
nt->
Fill(s1x + 1, s1y + 1, s1z + 1, s3x - 2, s3y - 2, s3z - 2, r7, r8, r9);
generate_random(i);
nt->
Fill(r1, r2, r3, r4, r5, r6, s3x, r8, s3z);
}
nt->
Draw(
"x:y:z:u:v:w:a:b:c",
"",
"para");
assert(para1 != nullptr && "parallelcoordtrans, 'ParaCoord' is null");
assert(col26 != nullptr && "parallelcoordtrans, color with index 26 not found");
nt->
Draw(
"x:y:z:u:v:w:a:b:c",
"",
"para");
assert(para2 != nullptr && "parallelcoordtrans, 'ParaCoord' is null");
}
Option_t Option_t TPoint TPoint const char GetTextMagnitude GetFillStyle GetLineColor GetLineWidth GetMarkerStyle GetTextAlign GetTextColor GetTextSize void char Point_t Rectangle_t WindowAttributes_t Float_t r
R__EXTERN TStyle * gStyle
The color creation and management class.
static Int_t GetColor(const char *hexcolor)
Static method returning color number for color specified by hex color string of form: "#rrggbb",...
virtual void SetAlpha(Float_t a)
TObject * FindObject(const char *name) const override
Find an object in this list using its name.
A simple TTree restricted to a list of float variables only.
Int_t Fill() override
Fill a Ntuple with current values in fArgs.
virtual TObject * FindObject(const char *name) const
Must be redefined in derived classes.
void SetHistogramHeight(Double_t h=0)
Set the height of the bar histogram.
Parallel Coordinates class.
void SetLineColor(Color_t col)
This is the base class for the ROOT Random number generators.
void SetCanvasPreferGL(Bool_t prefer=kTRUE)
void Draw(Option_t *opt) override
Default Draw method for all objects.
tbb::task_arena is an alias of tbb::interface7::task_arena, which doesn't allow to forward declare tb...