The pyplot.scatter() function was tailor made for this reason: import matplotlib.pyplot as plt im = plt.imread(image_name) implot = plt.imshow(im) # put a blue dot at (10, 20) plt.scatter([10], [20]) # put a red dot, size 40, at 2 locations: plt.scatter(x=[30, 40], y=[50, 60], c=”r”, s=40) plt.show() See the documentation for more info.
Ordinarily, “Swing programs should override paintComponent() instead of overriding paint(),” as mentioned in Painting in AWT and Swing: The Paint Methods. Based on ScrollPanePaint, which draws below the scrolling content, the following example overrides paint() to draw above the scrolling content. import java.awt.*; import javax.swing.*; /** * @see https://stackoverflow.com/a/10097538/230513 * @see https://stackoverflow.com/a/2846497/230513 * @see https://stackoverflow.com/a/3518047/230513 … Read more
I do found a solution, the keyword is overlay with a floating window. int statusBarHeight = 0; int resourceId = getResources().getIdentifier(“status_bar_height”, “dimen”, “android”); if (resourceId > 0) statusBarHeight = getResources().getDimensionPixelSize(resourceId); final WindowManager.LayoutParams parameters = new WindowManager.LayoutParams( WindowManager.LayoutParams.WRAP_CONTENT, statusBarHeight, WindowManager.LayoutParams.TYPE_SYSTEM_ERROR, // Allows the view to be on top of the StatusBar WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN, // Keeps … Read more
If you just want to freeze the map view at the overlay, you could set the map view’s region to the overlay’s bounds and set scrollEnabled and zoomEnabled to NO. But that won’t let the user scroll or zoom inside the overlay’s bounds. There aren’t built-in ways to restrict the map view to the overlay’s … Read more
One of the idea I came up is to create a CGPath and stroke it with gradient every time when drawMapRect method been called, since the MKPolylineView is replaced by MKPlolylineRenderer in ios7. I tried to implement this by subclassing a MKOverlayPathRenderer but I failed to pick out individual CGPath, then I find a mysterious … Read more
There’re a two amazing articles about using OverLay from CDK in Netanet Basal’s Blog Creating Powerful Components with Angular CDK Context Menus Made Easy with Angular CDK I try to simplyfied in this stackblitz Basicaly you has a service that inject Overlay constructor(private overlay: Overlay) { } To open a template you pass the origin … Read more
Found this documentation that pretty much states that it’s not possible to do both: Android : Multi touch and TYPE_SYSTEM_OVERLAY They discuss workarounds but I don’t think any of them will actually work for exactly what I’m trying to do. Both given the events to the underlying app, and being able to snoop them to … Read more
Well, here’s another example. Xfire is a chat program that overlays its interface into games so you can receive messages while playing. The way they do this is by editing the d3d/opengl DLL at the process memory level, like injecting assembly jumps. I know this because their method was causing my mod to crash, and … Read more
this is working example link. check it out. it helps to create the route overlay on the map. here is the complete source code for that.
You might also want to look at OverlayLayout, seen here. It’s not included in the conventional gallery, but it may be of interest. import java.awt.BorderLayout; import java.awt.Color; import java.awt.Dimension; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.OverlayLayout; /** @see http://stackoverflow.com/a/13437388/230513 */ public class OverlaySample { public static void main(String args[]) { JFrame frame = new … Read more