draw

问题 I'm developing a MacOs application and have to implement my own search functional due to custom interface. So the question is - how can a draw a border around a part of NSAttributedString in NSTextView to display search result (just how it's done in TextEdit app). Please check the desired look on the attached image: http://d.pr/i/w8wP [UPDATE] Due to custom interface requirements I can't use NSTextViews's setUsesFindBar: and setUsesFindPanel: . The interface has a custom NSSearchField, which

问题 I'm new to WebGL and was trying to draw a circle with triangle_fan. I set up the variables var pi = 3.14159; var x = 2*pi/100; var y = 2*pi/100; var r = 0.05; points = [ vec2(0.4, 0.8) ]; //establish origin And then drew the circle using this for loop. for(var i = 0.4; i < 100; i++){ points.push(vec2(r*Math.cos(x*i), r*Math.sin(y*i))); points.push(vec2(r*Math.cos(x*(i+1)), r*Math.sin(y*(i+1)))); } The issue is that I am actually pushing in the second point again when i increases which I don't

问题 Is there any module that can ask upon user registration so that the user can have a cupon code? I want to use them later to draw prizes. Just like a lottery 回答1: Have you give a try to Registration code? It sounds like it could do the job that you are asking for. 来源： https://stackoverflow.com/questions/5632683/programming-a-contest-based-on-cupon-codes-in-drupal

问题 I have incorporated leaflet draw in one of my projects. My issue is that the icons were not displaying in the tool bar. It looked like this: Looking around I found THIS post and did as it stated. I located the spritesheet in the Leaflet Draw folder and linked to it like htis: .leaflet-draw-toolbar a { background-image: url('E:/MappingProject/Leaflet.Draw/src/images/spritesheet.png'); background-repeat: no-repeat; } I ended up with this: I can't seem to find any other solutions to get this

问题 i am trying to make a drawing application. i want to draw a single-touch motion path in android - like the way the Swype keyboard does it. And consequently i want to store x-y coordinates of EACH of the pixels of the motion path into a data structure. How can i use the MotionEvent pointers to do this? 回答1: You probably don't have to store every pixel - just store a new one when certain parameters are met such as the pixel is further along or if the angle between one pixel and the next is

问题 how can I draw into an existing UIImage using monotouch? I load an image: UIImage.FromFile("MyImage.png") Then I want to draw a string and some lines into this image. Does anyone has a code sample? Thx 回答1: Here is a method that does it: private void drawOnTouch(object data) { UITouch touch = data as UITouch; if (null != touch) { UIGraphics.BeginImageContext(this.Image == null ? this.Frame.Size : this.Image.Size); using (CGContext cont = UIGraphics.GetCurrentContext()) { if (this.Image !=

问题 I have this function and I want to draw a self loop. How can I do that? The edge exists but I think it's just a point in this exemple is (1,1) and I couldn't add the name of nodes. My goal is from adjacency matrix draw a graph. Is there there is better way to do this? import networkx as nx import matplotlib.pyplot as plt from matplotlib.patches import FancyArrowPatch, Circle import numpy as np def draw_network(G,pos,ax,sg=None): for n in G: c=Circle(pos[n],radius=0.05,alpha=0.7) ax.add_patch

问题 I have this function and I want to draw a self loop. How can I do that? The edge exists but I think it's just a point in this exemple is (1,1) and I couldn't add the name of nodes. My goal is from adjacency matrix draw a graph. Is there there is better way to do this? import networkx as nx import matplotlib.pyplot as plt from matplotlib.patches import FancyArrowPatch, Circle import numpy as np def draw_network(G,pos,ax,sg=None): for n in G: c=Circle(pos[n],radius=0.05,alpha=0.7) ax.add_patch

问题 I'm trying to draw multiple circle arcs filled with different colors //-------------- draw ctx.beginPath(); ctx.fillStyle = "black"; ctx.arc(30, 30, 20, 0, Math.PI*2, true); ctx.fill(); ctx.fillStyle = "red"; ctx.arc(100, 100, 40, 0, Math.PI*2, true); ctx.fill(); ctx.closePath(); This produces both arcs filled in with red, and I can tell that there is a faint black outline around the smaller one. Can anyone shed some light on how I can accomplish this? what I'm doing wrong? 回答1: Close the

问题 Based on my previous question of "How to create a BottomBar as StickyBottomCaptureLayout in camera2 Android api?", I created a layout with a StickyBar (SB) which is always locked above/near the system bar. I set the default positions and coordinates of the SB and the other layout in onLayout() (exactly as my answer). The upper layout is a simple custom DrawView which has an ArrayList of Path s drew by the user. When the device rotates, it recalls onDraw() and calls several times canvas