本文整理汇总了C++中TImage::Clone方法的典型用法代码示例。如果您正苦于以下问题：C++ TImage::Clone方法的具体用法？C++ TImage::Clone怎么用？C++ TImage::Clone使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TImage的用法示例。
在下文中一共展示了TImage::Clone方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: rose_image
void rose_image()
{
// Display image in a new canvas and pad.
TImage *img = TImage::Open("rose512.jpg");
if (!img) {
printf("Could not create an image... exit\n");
return;
}
img->SetConstRatio(0);
img->SetImageQuality(TAttImage::kImgBest);
TString fp = gEnv->GetValue("Root.TTFontPath", "");
TString bc = fp + "/BlackChancery.ttf";
TString ar = fp + "/arial.ttf";
// draw text over image with funny font
img->DrawText(120, 160, "Hello World!", 32,
gROOT->GetColor(4)->AsHexString(),
bc, TImage::kShadeBelow);
// draw text over image with foreground specified by pixmap
img->DrawText(250, 350, "goodbye cruel world ...", 24, 0,
ar, TImage::kPlain, "fore.xpm");
TImage *img2 = TImage::Open("mditestbg.xpm");
// tile image
img2->Tile(img->GetWidth(), img->GetHeight());
c1 = new TCanvas("rose512", "examples of image manipulations", 760, 900);
c1->Divide(2, 3);
c1->cd(1);
img->Draw("xxx");
img->SetEditable(kTRUE);
c1->cd(2);
// averaging with mditestbg.xpm image
TImage *img3 = (TImage*)img->Clone("img3");
img3->Merge(img2, "allanon");
img3->Draw();
// contrasting (tint with itself)
c1->cd(3);
TImage *img4 = (TImage*)img->Clone("img4");
img4->Merge(img4, "tint");
// draw filled rectangle with magenta color
img4->FillRectangle("#FF00FF", 20, 220, 40, 40);
// Render multipoint alpha-blended gradient (R->G->B)
img4->Gradient(0, "#FF0000 #00FF00 #220000FF", 0, 50, 50, 100, 100);
// draw semi-transparent 3D button
img4->Bevel(300, 20, 160, 40, "#ffffffff", "#fe000000", 3, 0);
img4->DrawLine(10, 100, 100, 10, "#0000ff", 4);
img4->Draw();
// vectorize image. Reduce palette to 256 colors
c1->cd(4);
TImage *img5 = (TImage*)img->Clone("img5");
img5->Vectorize(256);
img5->Draw();
// quantization of the image
c1->cd(5);
TImage *img6 = (TImage*)img->Clone("img6");
TImagePalette *pal = (TImagePalette *)&img5->GetPalette();
TArrayD *arr = img6->GetArray(50, 40, pal);
img6->SetImage(arr->GetArray(), 50, 40, pal);
img6->Draw();
// HSV adjustment (convert red to yellow)
c1->cd(6);
TImage *img7 = (TImage*)img->Clone("img7");
img7->HSV(0, 40, 40);
img7->Draw();
}