paint

Is there already a directive to draw/paint things on a canvas? So you can implement something like Paint or even something bigger like Photoshop etc., but a very basic example would suffice. I haven't found one in my search and if there's already one that is considered best practice I would like to use it. Else I have to implement one myself. Ok I did one and it is actually pretty easy: app.directive("drawing", function(){ return { restrict: "A", link: function(scope, element){ var ctx = element[0].getContext('2d'); // variable that decides if something should be drawn on mousemove var drawing

This question already has an answer here: Canvas - floodfill leaves white pixels at edges 4 answers I am creating a drawing application. When I select a very dark color and paint inside the Panda's face, the edges are left white. I want my code to color entire area bound within the borders. This is the LINK . These are the functions that I am using in javascript. How can I make them better? function matchOutlineColor(r, g, b, a) { return (r + g + b < 75 && a >= 50); }; function matchStartColor(pixelPos, startR, startG, startB) { var r = outlineLayerData.data[pixelPos], g = outlineLayerData

Can we paint images and draw text... outside a form.. i mean literally outside... i know its stupid question to ask but CAN we... You can "cheat" by creating a form, and setting its TransparentColor property to its background color, then draw on it. However, this prohibits you from drawing the transparent color because it won't show. Or you could actually draw directly to the desktop. [DllImport("User32.dll")] public static extern IntPtr GetDC(IntPtr hwnd); [DllImport("User32.dll")] public static extern void ReleaseDC(IntPtr dc); IntPtr desktopPtr = GetDC(IntPtr.Zero); Graphics g = Graphics

I want to draw/paint on a webcam screen using OpenCV. Since I'm reading from a cam, the frames are constantly changing, so I'm trying to figure out a way to keep or save the drawing on the current frame and use it for the next frame. The code below allows you to draw on the screen but when it gets the next frame, the drawing is gone and it starts over. Could someone please help me ... Thanks. CvCapture *input; input = cvCaptureFromCAM( 0 ); cvSetMouseCallback("Demo",&on_mouse, 0); for(;;) { frame = cvQueryFrame(input); if(!image) { image = cvCreateImage( cvSize(frame->width, frame->height),

First to see the below images. package com.syncfusion.rating; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.Paint; import android.graphics.Path; import android.graphics.Region; import android.view.View; /** * Created by chozarajan.pandiyarajan on 10/9/2015. */ public class SfRatingItem extends View { private int fillColor,minDim,topXPoint,topYPoint; private double bigHypot,bigA,bigB,littleHypot,littleA,littleB,value; private Paint starPaint; private Path path; public SfRatingItem(Context context) { super(context);

I am trying to mix two source RGB vectors to create a third "resultant vector" that is an intuitive mix of the first two. Ideally, I would be able to emulate "real paint mixing characteristics", but for simplicity, I am trying to find a method where the resultant looks intuitively like what you'd get from combining the two source rgb's. minimally, these characteristics: RED + BLACK = DARK RED RED + WHITE = LIGHT RED optimally, also with real paint characteristics: RED + BLUE = PURPLE RED + YELLOW = ORANGE (etc) -- I am currently doing this the "lazy way" by adding the two source RGB vectors

I'm developing an application for taking screenshots in the device. In this application, we can draw anything on the screen. For this I am using Canvas, Paint and Path to do this. I'm using this code to take screenshots: public void saveScreenshot() { if (ensureSDCardAccess()) { Bitmap bitmap = Bitmap.createBitmap(getWidth(), getHeight(), Bitmap.Config.ARGB_8888); Canvas canvas = new Canvas(bitmap); onDraw(canvas); File file = new File(mScreenshotPath + "/" + System.currentTimeMillis() + ".jpg"); FileOutputStream fos; try { fos = new FileOutputStream(file); bitmap.compress(Bitmap