draw

问题 I have to draw a circle with a number in each piece of my circle. My problem is i can't center the text where i want. Why the center to draw the text is not the same than the center to draw the line ??? sfdzqgs fsdgf dsbfd ds ds fdg sfgnfhggdf wdvfbdfsf dsgfhdr sdgfdshstqrssgqg sqfgshdf dgerfztiaruhis rguhtrqiorgeuqzengoh bçzioqrgethriZQGEHOQRAGIRGOGfjfn fgkjkjvfrejn eofnbfoig vjlj vvjfndbjfdnj figsn /*enter code here * Author : * date : 06/12/2013 * * * enter code here */ package com.example

问题 Good day.I want to draw an rectangle as a view but which bottom shall be curved.I do not want to apply background image like that or use any views,because if i use an view and set background,the curve part will still have invisible empty space and i would not be able to attach another curve image to the bottom curve of the custom view.So how shall i draw an rectangle with bottom curved line and use it as a view to set any background color i want? Notice: i have heard something and read about

问题 I'm trying to port an emulator that i have written in java to android. Things have been going nicely, I was able to port most of my codes with minor changes however due to how emulation works, I need to render image at pixel level. As for desktop java I use int[] pixelsA = ((DataBufferInt) src.getRaster().getDataBuffer()).getData(); which allow me to get the reference to the pixel buffer and update it on the fly(minimize object creations) Currently this is what my emulator for android does

问题 Trying to figure out what I'm doing wrong here. Have tried several things, but I never see that elusive rectangle on the screen. Right now, that's all I want to do -- just draw a single rectangle on the screen. I'm getting an "invalid context" on everything but the CGContextSetRGBFillColor(). Getting the context after that seems kinda wrong to me, but I'm not at home looking at the examples I was using last night. Have I messed up something else as well? I really would like to get at least

问题 I have the following which doesn't work correctly: var canvas = new fabric.Canvas('canvas'); canvas.observe('mouse:down', function(e) { mousedown(e); }); canvas.observe('mouse:move', function(e) { mousemove(e); }); canvas.observe('mouse:up', function(e) { mouseup(e); }); var started = false; var x = 0; var y = 0; /* Mousedown */ function mousedown(e) { var mouse = canvas.getPointer(e.memo.e); started = true; x = mouse.x; y = mouse.y; var square = new fabric.Rect({ width: 1, height: 1, left:

问题 I need to draw independet rectangles to a sprite. But the overlapping areas will get visible if I apply alpha to my sprite (the sprite will be fade in and out): var spBox:Sprite = new Sprite(); this.addChild(spBox); spBox.graphics.beginFill(0x123456) spBox.graphics.drawRect(100, 100, 50, 50); spBox.graphics.endFill(); spBox.graphics.beginFill(0x123456) spBox.graphics.drawRect(125, 125, 50, 50); spBox.graphics.endFill(); Is there a way to compine/flatten/merge the rectangles of my sprite? I

问题 I am toying with curses and I can't get a box to draw on the screen. I created a border which works but I want to draw a box in the border here is my code import curses screen = curses.initscr() try: screen.border(0) box1 = curses.newwin(20, 20, 5, 5) box1.box() screen.getch() finally: curses.endwin() any advice? 回答1: From curses docs: When you call a method to display or erase text, the effect doesn’t immediately show up on the display. ... Accordingly, curses requires that you explicitly

问题 I have a UIBezierPath inside my custom UIView draw(_ rect: CGRect) function. I would like to fill the path with a gradient color. Please can anybody guide me how can I do that. I need to fill the clip with a gradient color and then stroke the path with black color. There are some posts in SO which does not solve the problem. For example Swift: Gradient along a bezier path (using CALayers) this post guides how to draw on a layer in UIView but not in a UIBezierPath . NB: I am working on Swift-3

问题 I've a UIImageView with a image with is a car with a transparent background: And I want to draw a border around the car: How can I reach this effect? At the moment, I've tested CoreGraphics in this way, but without good results: // load the image UIImage *img = carImage; UIGraphicsBeginImageContext(img.size); CGContextRef context = UIGraphicsGetCurrentContext(); [[UIColor redColor] setFill]; CGContextTranslateCTM(context, 0, img.size.height); CGContextScaleCTM(context, 1.0, -1.0);

问题 I want to load an image, resize it to a given size and after draw it in a specific position in a panel. All this using wxpython. How can I do it? Thanks in advance! 回答1: wx.Image has a Scale method that will do the resizing. The rest is normal wx coding. Here's a complete example for you. import wx def scale_bitmap(bitmap, width, height): image = wx.ImageFromBitmap(bitmap) image = image.Scale(width, height, wx.IMAGE_QUALITY_HIGH) result = wx.BitmapFromImage(image) return result class Panel(wx