Top "Graphics" questions

Plotting pca biplot with ggplot2

I wonder if it is possible to plot pca biplot results with ggplot2. Suppose if I want to display the …

r graphics ggplot2 pca

Qt Graphics View , show image ! , Widget

Here is my code : void MainWindow::on_actionOpen_Image_triggered() { QString fileName = QFileDialog::getOpenFileName(this,"Open Image File",QDir::currentPath()); …

image qt graphics view qgraphicsview

correcting fisheye distortion programmatically

BOUNTY STATUS UPDATE: I discovered how to map a linear lens, from destination coordinates to source coordinates. How do you …

math graphics geometry projection

Scripting <path> data in SVG (reading and modifying)

Can anyone really really help me, please? I've been searching for ways to run scripts for my SVG. But all …

javascript graphics svg scalable

Swift 3: Drawing a rectangle

I'm 3 days new to swift, and I'm trying to figure out how to draw a rectangle. I'm too new to …

swift graphics draw drawrect swift3

How to specify the position of an Ellipse shape on a canvas in WPF?

I am programmatically creating an Ellipse shape but I can't find any property that specifies its position. Lines have X1, …

c# .net wpf graphics shapes

Generating a normal map from a height map?

I'm working on procedurally generating patches of dirt using randomized fractals for a video game. I've already generated a height …

c++ opengl graphics

How to add text to an image in java?

I need to add some texts to an existing table image (png). Which means that I need to "write" on …

java string image text graphics

How to recognize rectangles in this image?

I have a image with horizontal and vertical lines. In fact, this image is the BBC website converted to horizontal …

graphics artificial-intelligence machine-learning computer-vision

Fast work with Bitmaps in C#

I need to access each pixel of a Bitmap, work with them, then save them to a Bitmap. Using Bitmap.…

c# .net graphics bitmap pixels