25 ::Error(
"grad",
"failed to create new custom colors");
30 TCanvas *
const cnv =
new TCanvas(
"gradient demo 1",
"gradient demo 1", 100, 100, 600, 600);
33 ::Error(
"grad",
"This macro works only on MacOS X with --enable-cocoa");
49 const Color_t &frameGradient = colorIndices[2];
52 new TColor(colorIndices[0], 0.25, 0.25, 0.25,
"special pad color1", 0.55);
53 new TColor(colorIndices[1], 1., 1., 1.,
"special pad color2", 0.05);
55 const Double_t locations[] = {0., 0.2, 0.8, 1.};
56 const Color_t gradientIndices[4] = {colorIndices[0], colorIndices[1], colorIndices[1], colorIndices[0]};
61 gradFill1->
SetStartEnd(Point(0., 0.), Point(1., 0.));
65 const Color_t &padGradient = colorIndices[3];
68 const Double_t locations[] = {0., 1.};
69 const Color_t gradientIndices[2] = {30, 38};
74 gradFill2->
SetStartEnd(Point(0., 0.), Point(0., 1.));
78 const Color_t &histGradient = colorIndices[4];
82 const Double_t locations[3] = {0., 0.5, 1.};
87 gradFill3->
SetStartEnd(Point(0., 0.), Point(0., 1.));
93 TH1F *
const hist =
new TH1F(
"a1",
"b1", 20, -3., 3.);
unsigned FindFreeCustomColorIndices(Color_t(&indices)[N])
1-D histogram with a float per channel (see TH1 documentation)}
void Error(const char *location, const char *msgfmt,...)
virtual void FillRandom(const char *fname, Int_t ntimes=5000)
Fill histogram following distribution in function fname.
virtual void Draw(Option_t *option="")
Draw this histogram with options.
virtual void SetFillColor(Color_t fcolor)
Define a linear color gradient.
The color creation and management class.
void SetStartEnd(const Point &p1, const Point &p2)
Set end and start.
void SetFrameFillColor(Color_t color=1)