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  • Generating radial indicator images using C#

    - by DigiMortal
    In one of my projects I needed to draw radial indicators for processes measured in percent. Simple images like the one shown on right. I solved the problem by creating images in C# and saving them on server hard disc so if image is once generated then it is returned from disc next time. I am not master of graphics or geometrics but here is the code I wrote. Drawing radial indicator To get things done quick’n’easy way – later may some of younger developers be the one who may need to changes things – I divided my indicator drawing process to four steps shown below. 1. Fill pie 2. Draw circles 3. Fill inner circle 4. Draw text Drawing image Here is the code to draw indicators. private static void SaveRadialIndicator(int percent, string filePath) {     using (Bitmap bitmap = new Bitmap(100, 100))     using (Graphics objGraphics = Graphics.FromImage(bitmap))     {         // Initialize graphics         objGraphics.Clear(Color.White);         objGraphics.SmoothingMode = SmoothingMode.AntiAlias;         objGraphics.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;           // Fill pie         // Degrees are taken clockwise, 0 is parallel with x         // For sweep angle we must convert percent to degrees (90/25 = 18/5)         float startAngle = -90.0F;                        float sweepAngle = (18.0F / 5) * percent;           Rectangle rectangle = new Rectangle(5, 5, 90, 90);         objGraphics.FillPie(Brushes.Orange, rectangle, startAngle, sweepAngle);           // Draw circles         rectangle = new Rectangle(5, 5, 90, 90);         objGraphics.DrawEllipse(Pens.LightGray, rectangle);         rectangle = new Rectangle(20, 20, 60, 60);         objGraphics.DrawEllipse(Pens.LightGray, rectangle);           // Fill inner circle with white         rectangle = new Rectangle(21, 21, 58, 58);         objGraphics.FillEllipse(Brushes.White, rectangle);           // Draw text on image         // Use rectangle for text and align text to center of rectangle         var font = new Font("Arial", 13, FontStyle.Bold);         StringFormat stringFormat = new StringFormat();         stringFormat.Alignment = StringAlignment.Center;         stringFormat.LineAlignment = StringAlignment.Center;           rectangle = new Rectangle(20, 40, 62, 20);         objGraphics.DrawString(percent + "%", font, Brushes.DarkGray, rectangle, stringFormat);           // Save indicator to file         objGraphics.Flush();         if (File.Exists(filePath))             File.Delete(filePath);           bitmap.Save(filePath, ImageFormat.Png);     }        } Using indicators on web page To show indicators on your web page you can use the following code on page that outputs indicator images: protected void Page_Load(object sender, EventArgs e) {     var percentString = Request.QueryString["percent"];     var percent = 0;     if(!int.TryParse(percentString, out percent))         return;     if(percent < 0 || percent > 100)         return;       var file = Server.MapPath("~/images/percent/" + percent + ".png");     if(!File.Exists(file))         SaveImage(percent, file);       Response.Clear();     Response.ContentType = "image/png";     Response.WriteFile(file);     Response.End(); } Om your pages where you need indicator you can set image source to Indicator.aspx (if you named your indicator handling file like this) and add percent as query string:     <img src="Indicator.aspx?percent=30" /> That’s it! If somebody knows simpler way how to generate indicators like this I am interested in your feedback.

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  • Promote Your Website Using SEO

    Using websites to promote your business proves to be much more reliable and get more results than the familiar way of sending of printed materials to target clients. For better result, web and business owners need to learn the SEO technique to be successful.

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  • How to Find a Niche Using Keyword Research and Analysis

    Everyone coming online now with dreams of selling their way to financial freedom usually has one question in common: how to find a niche that they can sell. This is a question that must be answered, and I believe the answer lies in using solid keyword research and analysis to uncover the gems that may be lying hidden at your feet in any particular market.

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  • EXIF Compare Utility using WPF

    The Exif Compare Utility is a WinDiff equivalent for image files that compares the Exif meta-data and displays the differences and similarities. The application is written using WPF and MVVM.

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  • 5 Simple Tips to Boost Your Traffic Using SEO

    We all know that the higher a website ranks in the search engines the more visitors it will receive. We can guarantee a spot on the first page by using a Pay-per-click campaign, but it can also be quite easy to get free positioning on page 1. These 5 tips, if used correctly, will get you on page 1 of the search engines over and over.

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  • Using Apps Script with Twilio

    Using Apps Script with Twilio In this episode we talk about integrating SMS and phone calls with Google Apps via Twilio, a voice and SMS provider. We show you the basics of the API as well as how to bring voice calls and SMS into spreadsheets and docs. You can download the source code for the demos here: github.com From: GoogleDevelopers Views: 1247 34 ratings Time: 27:57 More in Science & Technology

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  • Configuring Site Policy in SharePoint 2013 using server code

    - by panjkov
    When you create Site Policy in SharePoint, you can configure its options using browser, which is particularly convenient when you have that policy configured for publishing in Content Type Hub. But, when you need to configure multiple sites with same policy, and you for any reason have to deploy multiple instances of same site policy, this browser-based editing process is not something that you would want to use. In that case, some way of configuring policy options automatically would be helpful...(read more)

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  • Can't fix broken packages using Synaptic (Broken Package: Wine1.4)

    - by Rustyblade
    Ok so I am trying to fix a broken package in order to install wine. When I do "sudo apt-get install wine" I get: sam@ubuntu:~$ sudo apt-get install wine [sudo] password for sam: Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: wine : Depends: wine1.4 but it is not going to be installed E: Unable to correct problems, you have held broken packages. Then I try "sudo apt-get install wine1.4" sam@ubuntu:~$ sudo apt-get install wine1.4 Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: wine1.4 : Depends: wine1.4-i386 (= 1.4.1-0ubuntu1) but it is not installable Recommends: gnome-exe-thumbnailer but it is not going to be installed or kde-runtime but it is not going to be installed Recommends: winetricks but it is not going to be installed E: Unable to correct problems, you have held broken packages. So someone told me to try Synaptic. Here is what I tried: Searched wine Right clicked wine1.4 Said I needed to mark other packages Mark I click Apply. It says, You have to fix broken packages first! I do EditFix Broken Packages I get this E: Unable to correct problems, you have held broken packages. E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages. E: Unable to correct dependencies E: Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages. E: Unable to correct dependencies I am really frustrated. I removed the Official Wine PPA and tried it I even tried $ sudo apt-get -f install 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Please help me :( System: Ubuntu 12.10 64bit

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  • Dynamic Web Applications with ASP.NET Mono using MySQL and VB.NET

    This tutorial will provide an example of an actual dynamic web application project in ASP.NET Mono using MySQL and VB.NET. A dynamic web application as described in this tutorial refers to a web application that depends on the use of a database. You will need to know how to use MySQL in an ASP.NET Mono project to understand this tutorial.... Comcast? Business Class - Official Site Sign Up For Comcast Business Class, Make Your Business a Fast Business

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  • Using Dynamic LINQ to get a filter for my Web API

    - by Espo
    We are considering using the Dynamic.CS linq-sample included in the "Samples" directory of visual studio 2008 for our WebAPI project to allow clients to query our data. The interface would be something like this (In addition to the normal GET-methods): public HttpResponseMessage List(string filter = null); The plan is to use the dynamic library to parse the "filter"-variable and then execute the query agains the DB. Any thoughts if this is a good idea? Is it a security problem?

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  • Unable connect to android phone using bluetooth

    - by archerry
    How do I connect my laptop to my HTC Wildfire through bluetooth? The laptop is running xubuntu 11.10, and I have updated Blueman to version 1.23 through their launchpad PPA. The phone is running android version 2.2.1. I can 'pair' and 'trust' the phone, but I can neither 'send files to device...' nor 'browse files on device...' I am able to connect and browse the phone using my netbook running xubuntu 10.04 and blueman version 1.21.

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  • (SOLVED) Problems Rendering Text in OpenGL Using FreeType

    - by Sean M.
    I've been following both the FreeType2 tutorial and the WikiBooks tuorial, trying to combine things from them both in order to load and render fonts using the FreeType library. I used the font loading code from the FreeType2 tutorial and tried to implement the rendering code from the wikibooks tutorial (tried being the keyword as I'm still trying to learn model OpenGL, I'm using 3.2). Everything loads correctly and I have the shader program to render the text with working, but I can't get the text to render. I'm 99% sure that it has something to do with how I cam passing data to the shader, or how I set up the screen. These are the code segments that handle OpenGL initialization, as well as Font initialization and rendering: //Init glfw if (!glfwInit()) { fprintf(stderr, "GLFW Initialization has failed!\n"); exit(EXIT_FAILURE); } printf("GLFW Initialized.\n"); //Process the command line arguments processCmdArgs(argc, argv); //Create the window glfwWindowHint(GLFW_SAMPLES, g_aaSamples); glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3); glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2); g_mainWindow = glfwCreateWindow(g_screenWidth, g_screenHeight, "Voxel Shipyard", g_fullScreen ? glfwGetPrimaryMonitor() : nullptr, nullptr); if (!g_mainWindow) { fprintf(stderr, "Could not create GLFW window!\n"); closeOGL(); exit(EXIT_FAILURE); } glfwMakeContextCurrent(g_mainWindow); printf("Window and OpenGL rendering context created.\n"); glClearColor(0.2f, 0.2f, 0.2f, 1.0f); //Are these necessary for Modern OpenGL (3.0+)? glViewport(0, 0, g_screenWidth, g_screenHeight); glOrtho(0, g_screenWidth, g_screenHeight, 0, -1, 1); //Init glew int err = glewInit(); if (err != GLEW_OK) { fprintf(stderr, "GLEW initialization failed!\n"); fprintf(stderr, "%s\n", glewGetErrorString(err)); closeOGL(); exit(EXIT_FAILURE); } printf("GLEW initialized.\n"); Here is the font file (it's slightly too big to post): CFont.h/CFont.cpp Here is the solution zipped up: [solution] (https://dl.dropboxusercontent.com/u/36062916/VoxelShipyard.zip), if anyone feels they need the entire solution. If anyone could take a look at the code, it would be greatly appreciated. Also if someone has a tutorial that is a little more user friendly, that would also be appreciated. Thanks.

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  • Trending Buffer Pool Performance Using DMV sys.dm_os_performance_counters

    I'd seen you posted a tip on capturing SQL based PerfMon counters using sys.dm_os_performance_counters. What queries can I run against those stored results that would allow me to examine memory usage on my SQL instance? Join SQL Backup’s 35,000+ customers to compress and strengthen your backups "SQL Backup will be a REAL boost to any DBA lucky enough to use it." Jonathan Allen. Download a free trial now.

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  • Unable to download a file using drag&drop

    - by espectalll123
    I've been downloading images from the Internet doing drag&drop while holding the Ctrl key. Using Google Chrome, and of course Nautilus, it used to work fine. But I recently had problems with packages and now every time I do that a warning menu appears showing this message: The specified location is not supported Probably I removed the packaged which allowed me to download content... can anybody help me? Note: Downloading doing right-click works, but I use more drag&drop.

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  • using lua in kobold2d to control parameters

    - by nycynik
    Is there a tutorial on using LUA in Kobold2d? I want to know if its possible to use it to control the game behavior (like max speed decrease of timer, and bonus points) by uploading a new script to the app. I found this link in the FAQ: http://www.kobold2d.com/pages/viewpage.action?pageId=917888 but it does not mention if I can replace the lua script from within the game, and reload it, is that possible? Should i just have a parameter file instead that i can download and replace?

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  • Using multiplication and division with delta time

    - by tesselode
    Using delta time with addition and subtraction is easy. player.x += 100 * dt However, multiplication and division complicate things a bit. For example, let's say I want the player to double his speed every second. player.x = player.x * 2 * dt I can't do this because it'll slow down the player (unless delta time is really high). Division is the same way, except it'll speed things way up. How can I handle multiplication and division with delta time?

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  • BrainVita Game using JQuery

    Using JQuery features to implement BrainVita Game...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • How to Stream Videos and Music Over the Network Using VLC

    - by Chris Hoffman
    VLC includes a fairly easy-to-use streaming feature that can stream music and videos over a local network or the Internet. You can tune into the stream using VLC or other media players. Use VLC’s web interface as a remote control to control the stream from elsewhere. Bear in mind that you may not have the bandwidth to stream high-definition videos over the Internet, though. How to Use an Xbox 360 Controller On Your Windows PC Download the Official How-To Geek Trivia App for Windows 8 How to Banish Duplicate Photos with VisiPic

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