If you are using Matplotlib and are trying to get good figures in a LaTeX document, save as an EPS. Specifically, try something like this after running the commands to plot the image: plt.savefig(‘destination_path.eps’, format=”eps”) I have found that EPS files work best and the dpi parameter is what really makes them look good in … Read more
I really agree with the other posters: Tufte’s books are fantastic and well worth reading. First, I would point you to a very nice tutorial on ggplot2 and ggobi from “Looking at Data” earlier this year. Beyond that I would just highlight one visualization from R, and two graphics packages (which are not as widely … Read more
It’s probably best to use the Python Image Library to do this which I’m afraid is a separate download. The easiest way to do what you want is via the load() method on the Image object which returns a pixel access object which you can manipulate like an array: from PIL import Image im = … Read more
The DOT user manual gives the following example of a graph with clusters with edges between clusters: IMPORTANT: The initial compound=true statement is required. digraph G { compound=true; subgraph cluster0 { a -> b; a -> c; b -> d; c -> d; } subgraph cluster1 { e -> g; e -> f; } b … Read more
Why bother replicating the effect? Just draw a UIToolbar behind your view. myView.backgroundColor = [UIColor clearColor]; UIToolbar* bgToolbar = [[UIToolbar alloc] initWithFrame:myView.frame]; bgToolbar.barStyle = UIBarStyleDefault; [myView.superview insertSubview:bgToolbar belowSubview:myView];
To detect whether two balls collide, just check whether the distance between their centers is less than two times the radius. To do a perfectly elastic collision between the balls, you only need to worry about the component of the velocity that is in the direction of the collision. The other component (tangent to the … Read more
Ok, after some time, here’s what I landed on: .parent { position: relative; top: 0; left: 0; } .image1 { position: relative; top: 0; left: 0; border: 1px red solid; } .image2 { position: absolute; top: 30px; left: 30px; border: 1px green solid; } <div class=”parent”> <img class=”image1″ src=”https://via.placeholder.com/50″ /> <img class=”image2″ src=”https://via.placeholder.com/100″ /> </div> … Read more
You can use UIVisualEffectView to achieve this effect. This is a native API that has been fine-tuned for performance and great battery life, plus it’s easy to implement. Swift: //only apply the blur if the user hasn’t disabled transparency effects if !UIAccessibility.isReduceTransparencyEnabled { view.backgroundColor = .clear let blurEffect = UIBlurEffect(style: .dark) let blurEffectView = UIVisualEffectView(effect: … Read more
For graphics, I’d rather not prefer integers. Many systems use integers for UI painting (pixels are ints after all), but macOS, for example, uses float for everything. macOS only knows points and a point can translate to one pixel, but depending on monitor resolution, it might translate to something else. On retina screens half a … Read more