You need two inputs Two inputs should get the job done. One input will contain the masked text and the other will be a hidden input that contains the real data. <input type=”text” name=”masknumber”> <input type=”text” name=”number” style=”display:none;”> The way I approached the masking is to build a function for both masking and unmasking the … Read more
If you are using numpy: >>> import numpy as np >>> a = np.arange(8) >>> mask = np.array([False, False, False, False, True, True, True, False], dtype=np.bool) >>> a[mask] array([4, 5, 6]) If you are not using numpy you are looking for itertools.compress >>> from itertools import compress >>> a = range(8) >>> mask = [False, … Read more
This function implements the reverse blend described by Mark Ransom, for an additional small but visible improvement: reverseBlend[img_Image, alpha_Image, bgcolor_] := With[ {c = ImageData[img], a = ImageData[alpha] + 0.0001, (* this is to minimize ComplexInfinitys and considerably improve performance *) bc = bgcolor}, ImageClip@ Image[Quiet[(c – bc (1 – a))/a, {Power::infy, Infinity::indet}] /. {ComplexInfinity … Read more
This happens because: gmodels imports gdata gdata creates a new method for reorder.factor Start a clean session. Then: methods(“reorder”) [1] reorder.default* reorder.dendrogram* Now load gdata (or load gmodels, which has the same effect): library(gdata) methods(“reorder”) [1] reorder.default* reorder.dendrogram* reorder.factor Notice there is no masking, since reorder.factor doesn’t exist in base Recreate the problem, but this … Read more
Console.Write(“\b \b”); will delete the asterisk character from the screen, but you do not have any code within your else block that removes the previously entered character from your pass string variable. Here’s the relevant working code that should do what you require: var pass = string.Empty; ConsoleKey key; do { var keyInfo = Console.ReadKey(intercept: … Read more
GREAT question. Validation Writing robust, stable, and production-ready R code IS hard. You said: “Surprisingly, this doesn’t seem to bother a lot of programmers out there”. That’s because most R programmers are not writing production code. They are performing one-off academic/research tasks. I would seriously question the skillset of any coder that claims that R … Read more
I’ve been wondering this exact same thing. The solution is actually quite simple. Although this is of course quite a modern feature, so you’re stuck to browser compatibility. Webkit can take care of this with a single line of CSS: -webkit-mask-image: -webkit-gradient(linear, left 90%, left bottom, from(rgba(0,0,0,1)), to(rgba(0,0,0,0))) (The new standardised way of doing it … Read more
If you want a solution that works on Windows/macOS/Linux and on Python 2 & 3, you can install the pwinput module: pip install pwinput Unlike getpass.getpass() (which is in the Python Standard Library), the pwinput module can display *** mask characters as you type. Example usage: >>> pwinput.pwinput() Password: ********* ‘swordfish’ >>> pwinput.pwinput(mask=’X’) # Change … Read more
A full example ?. Run this code : (NB: This example is best run in the console and not from within an IDE, since the System.console() method might return null in that case.) import java.io.Console; public class Main { public void passwordExample() { Console console = System.console(); if (console == null) { System.out.println(“Couldn’t get Console … Read more
Finally got the solution while changing mask image and using of Xfermode with Bitmap Mask ImageView mImageView= (ImageView)findViewById(R.id.imageview_id); Bitmap original = BitmapFactory.decodeResource(getResources(),R.drawable.content_image); Bitmap mask = BitmapFactory.decodeResource(getResources(),R.drawable.mask); Bitmap result = Bitmap.createBitmap(mask.getWidth(), mask.getHeight(), Config.ARGB_8888); Canvas mCanvas = new Canvas(result); Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG); paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.DST_IN)); mCanvas.drawBitmap(original, 0, 0, null); mCanvas.drawBitmap(mask, 0, 0, paint); paint.setXfermode(null); mImageView.setImageBitmap(result); mImageView.setScaleType(ScaleType.CENTER); … Read more