EDIT: Actually, I’m no longer sure. Several versions later, it seems that GLFW no longer works in GHCi on OS X. It turns out that GLFW+OpenGL fulfills all four requirements! You need to invoke ghci with ghci -framework Carbon. You need the EnableGUI.hs file, which you can get here. Note that you can’t load it … Read more
It’s a catch-all for multiple types. From the specification section 8 When the built-in functions are specified below, where the input arguments (and corresponding output) can be float , vec2 , vec3 , or vec4 , genType is used as the argument. Where the input arguments (and corresponding output) can be int , ivec2 , … Read more
You’re modifying the Graphics instance passed into paintComponent(), which is also used to paint the borders. Instead, make a copy of the Graphics instance and use that to do your drawing: public void drawDashedLine(Graphics g, int x1, int y1, int x2, int y2){ // Create a copy of the Graphics instance Graphics2D g2d = (Graphics2D) … Read more
Hardware Cursor means, that the GPU provides to draw a (small) overlay picture over the screen framebuffer, which position can be changed by two registers (or so) on the GPU. So moving around the pointer doesn’t require to redraw the portions of the framebuffer that were previously obstructed. Relation to OpenGL: None!
I think it’s easiest to think of your problem as an intersection problem: what is the parameter location (s,t) where the point p intersects the arbitrary 2D bilinear surface defined by p0, p1, p2 and p3. The approach I’ll take to solving this problem is similar to tspauld’s suggestion. Start with two equations in terms … Read more
I think the setting you are looking for is fontsize. You have to balance it with max_depth and figsize to get a readable plot. Here is an example from sklearn import tree from sklearn.datasets import load_iris import matplotlib.pyplot as plt # load data X, y = load_iris(return_X_y=True) # create and train model clf = tree.DecisionTreeClassifier(max_depth=4) … Read more
You can use CoreGraphics to create a path for a round rectangle with this code snippet: static void addRoundedRectToPath(CGContextRef context, CGRect rect, float ovalWidth, float ovalHeight) { float fw, fh; if (ovalWidth == 0 || ovalHeight == 0) { CGContextAddRect(context, rect); return; } CGContextSaveGState(context); CGContextTranslateCTM (context, CGRectGetMinX(rect), CGRectGetMinY(rect)); CGContextScaleCTM (context, ovalWidth, ovalHeight); fw = CGRectGetWidth … Read more
Instead of allocating a new canvas on each repaint, you should be able to allocate it once and then reuse the canvas on each repaint. on init and on resize: Bitmap b = Bitmap.createBitmap(getWidth(), getHeight(), Bitmap.Config.ARGB_8888); Canvas c = new Canvas(b); on repaint: b.eraseColor(Color.TRANSPARENT); // needed if backColor is not opaque; thanks @JosephEarl c.drawColor(backColor); c.drawCircle(cx, … Read more
public static GraphicsPath RoundedRect(Rectangle bounds, int radius) { int diameter = radius * 2; Size size = new Size(diameter, diameter); Rectangle arc = new Rectangle(bounds.Location, size); GraphicsPath path = new GraphicsPath(); if (radius == 0) { path.AddRectangle(bounds); return path; } // top left arc path.AddArc(arc, 180, 90); // top right arc arc.X = bounds.Right – … Read more