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  • Spawn a multi-threaded Java program from a Windows command line program, spawner won't end until spa

    - by Ross Patterson
    Short version: How can I prevent a spawned Java process in Windows from blocking the spawning process from ending? Long version: I'm trying to spawn a multi-threaded Java program (Selenium RC, not that it should matter) from a program launched from the Windows command line (NAnt's <exec> task, again, not that it should matter). I'm doing it using the Windows "start" command, and the spawned process is started and runs correctly. The spawning process receives control back and finishes (NAnt says "BUILD SUCCEEDED"), but doesn't actually exit to the command line. When the spawned process finally terminates (could be hours later), the command process returns and the command line prompt occurs. For example: <target name="start_rc"> <exec program="cmd" failonerror="false" workingdir="${ross.p5.dir}\Tools\selenium\selenium-server-1.0.1" verbose="true"> <arg value="/C"/> <arg value="start"/> <arg value="java"/> <arg value="-jar"/> <arg path="${ross.p5.dir}\Tools\selenium\selenium-server-1.0.1\selenium-server.jar"/> <arg value="-userExtensions"/> <arg path="${ross.p5.dir}\Tools\selenium\selenium-server-1.0.1\user-extensions.js"/> <arg value="-browserSideLog"/> <arg value="-log"/> <arg value="${ross.p5.dir}\artifacts\selenium.log"/> <arg value="-debug"/> </exec> </target> Produces: C :\Ross>nant start_rc NAnt 0.86 (Build 0.86.2898.0; beta1; 12/8/2007) Copyright (C) 2001-2007 Gerry Shaw http://nant.sourceforge.net Buildfile: file:///C:/Ross/ross.build Target framework: Microsoft .NET Framework 3.5 Target(s) specified: start_rc start_rc: [exec] Starting 'cmd (/C start java -jar C:\p5\Tools\selenium\selenium-server-1.0.1\selenium-server.jar -userExtensions C:\p5\Tools\selenium\selenium-server-1.0.1\user-extensions.js -browserSideLog -log C:\p5\artifacts\selenium.log -debug)' in 'C:\p5\Tools\selenium\selenium-server-1.0.1' BUILD SUCCEEDED Total time: 4.1 seconds. ... and then nothing until I close the window where Java is running, then ... C:\Ross> Obviously something is preventing the nant process from terminating, but shouldn't the Windows START command prevent that?

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  • How do you draw a line from one corner of the stage to the other?

    - by George Edison
    I am completely perplexed. I asked this question and it (any mentioned solution) doesn't seem to be working at all. All I want is to draw a line from one corner to the other. Here again is the link to the SWF file I have (it's embedded in an HTML document): test.html Here is the source: package { import flash.display.Sprite; import flash.events.Event; public class Main extends Sprite { public function Main():void { if (stage) init(); else addEventListener(Event.ADDED_TO_STAGE, init); } private function init(e:Event = null):void { removeEventListener(Event.ADDED_TO_STAGE, init); // entry point graphics.clear(); graphics.lineStyle(10, 0x000000); graphics.moveTo(0, 0); graphics.lineTo(stage.stageWidth, stage.stageHeight); } } } It just doesn't work! The line goes from somewhere offscreen to about the middle of the stage. What on earth am I doing wrong?

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  • How can I highlight the line of text that is closest to the mouse?

    - by Aaron Digulla
    I have a long text and I'd like to offer the user a reading help: The current line should be highlighted. To make it easier, I'll just use the Y coordinate of the mouse (this way, the mouse pointer isn't going to get in the way). I have a big DIV with the id content which fills the whole width and a small DIV with the class content for the text (see here for an example). I'm using jQuery 1.4. How can I highlight the line of text that is closest to the current mouse position?

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  • How do I bypass GUI in MFC app if command line options exist?

    - by Brandon
    I've got an existing simple MFC app that the user specifies the input file, output file, and then a "Process" button. I'd like to just add the capability so that the input/output files are command line parameters. But, if they exist, I don't want the GUI to show up. I just want the "Process" to execute. I see where I can get the command line parameters (m_lpCmdLine) but how can I bypass the displaying of the GUI? If I step into the app, it goes directly to winmain.cpp and displays the GUI without stepping into any of my code.

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  • Run Iphone app in simulator from the terminal : how to set up iPhoneSim ?

    - by user142764
    Hi, I found this project which seems to make it possible to run an iPhone app from command line ! http://github.com/jhaynie/iphonesim Unfortunately there is almost no documentation and i'm stuck at building this project : I download all sources I run MakeFile and i get these errors : admin$ ./Makefile ./Makefile: line 4: -Werror: command not found ./Makefile: line 5: AppKit: command not found ./Makefile: line 6: Source/main.o: No such file or directory ./Makefile: line 11: .SUFFIXES:: command not found ./Makefile: line 12: .m.o:: command not found ./Makefile: line 13: -o: No such file or directory ./Makefile: line 15: all:: command not found ./Makefile: line 17: iphonesim:: command not found gcc-4.2: argument to '-o' is missing ./Makefile: line 20: clean:: command not found As anybody been able to build and use this project ? Thanks, Vincent

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  • How to avoid the Windows (XP) Security Warning when launching a "DOS" command line within C#?

    - by Will Marcouiller
    This question is related to this initial question asked a little while ago. Now, that I have chosen the extracting tool, I'm iterating through a given in command line parameter directory and subdirectories to extract the compressed .zip files. private static void ExtractAll(DirectoryInfo _workingFolder) { if(_workingFolder == null) { Console.WriteLine("Répertoire inexistant."); return; } foreach (DirectoryInfo subFolder in _workingFolder.GetDirectories("*", SearchOption.AllDirectories)) foreach(FileInfo zippedFile in subFolder.GetFiles("*.zip", SearchOption.AllDirectories)) { if(zippedFile.Exists) { ProcessStartInfo task = new ProcessStartInfo(@".\Tools\7za.exe", string.Format("x {0}", zippedFile.FullName)); Process.Start(task); } } } But everytime I start a 7za process, the Windows Security Warning prompts. I would like to avoid such annoying behaviour, so here's my question: How to avoid the Windows (XP) Security Warning when launching a "DOS" command line within C#?

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  • If a command line program is unsure of stdout's encoding, what encoding should it output?

    - by mackstann
    I have a command line program written in Python, and when I pipe it through another program on the command line, sys.stdout.encoding is None. This makes sense, I suppose -- the output could be another program, or a file you're redirecting it into, or whatever, and it doesn't know what encoding is desired. But neither do I! This program will be used by many different people (humor me) in different ways. Should I play it safe and output only ascii (replacing non-ascii chars with question marks)? Or should I output UTF-8, since it's so widespread these days?

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  • `svn checkout` on the SVN server causes the repo to break with a 301 error

    - by Phillip Oldham
    We have an nginx server which proxies to a standard set-up of Apache+SVN. The nginx set-up is a very simple proxy: server { server_name svn.ourdomain.tld; location / { proxy_pass http://localhost:8080; } } Apache is set-up as follows: <Location /> DAV svn SVNParentPath /var/svn AuthType Basic AuthName "Authentication Required" AuthUserFile /var/svn/.auth Require valid-user </Location> ...which allows us to access repositories using something like http://svn.ourdomain.tld/repo. We've been running this set-up now for about 2 years without issue. Recently we've found that we need to check out one of the repositories onto the server itself, however whenever we do so it seems to break the repo. From that point on, it will only respond with a 301 Moved Permanently error. We've tried: svn co file:///path/to/repo svn co svn://localhost/repo svn co svn://svn.ourdomain.tld/repo svn co svn+ssh://localhost/repo svn co svn+ssh://svn.ourdomain.tld/repo svn co http://localhost/repo svn co http://svn.ourdomain.tld/repo Also tried bypassing nginx, and get the same error: svn co http://localhost:8080/repo svn co http://svn.ourdomain.tld:8080/repo Checking out from a different machine works as expected until we attempt to check out on the server, after that it refuses with the same 301 error. What is more confusing is that this repository server also hosts our HudsonCI server, which can pulls and builds our projects hourly. This leads us to suspect that it's the svn client which is causing an error in communication. Its also very confusing that removing then re-creating the repo using svnadmin doesn't reset the error - the repo is still unavailable even though it's "new"! Restarting apache and subversion (svnserve) has no effect on this, or the original error. Version information: OS: 64-bit CentOS 4.2, 2.6.27 kernel svn client: 1.4.2 (same for both server and remote clients) svn server: 1.4.2 httpd: 2.2.3 UPDATE: This also happens with svn export when run on the repo server. Ran from any other box/client, there isn't a problem. Here's the workflow, to help clarify the error: [~repo-server~]# svnadmin create {repo}; chown -Rf www:www {repo} [remote-client]# svn checkout http://svn.ourdomain.tld/repo [remote-client]# svn add file; svn ci -m '' [~repo-server~]# cd /var/www; svn export file:///path/to/repo/trunk ourproject [remote-client]# svn update fails with 301 error I can also confirm that the hostname of the box doesn't have an effect here, which is very odd: whether or not svn.ourdomain.tld is added to /etc/hosts it still breaks - we thought it could be an issue with localhost routing, but that doesn't seem to be the case. Are we missing something in the documentation which states you can't checkout a repo when the server is on the same box? How can we stop the repos becoming corrupt when we checkout locally?

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  • "sudo cd ..." one-liner?

    - by j-g-faustus
    Occasionally I want to cd into a directory where my user does not have permission, so I resort to sudo. The obvious command sudo cd somedir doesn't work: $ sudo mkdir test $ sudo chmod go-rxw test $ ls -l drwx------ 2 root root [...snip...] test $ cd test -bash: cd: test: Permission denied $ sudo cd test sudo: cd: command not found Using sudo su works: $ sudo su # cd test Is it possible to make this into a one-liner? (Not a big deal, just idle curiosity :) The variations I tried didn't work: $ sudo "cd test" sudo: cd: command not found $ sudo -i cd test -bash: line 0: cd: test: No such file or directory $ sudo -s cd test The last one doesn't give an error, but it cd's within a new shell that exits by the end of the line, so it doesn't actually take me anywhere. Can someone enlighten me as to why this happens? Why is sudo cd not found, when for example sudo ls ... works fine?

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  • After the update today no graphical interface anymore - 12.04

    - by Mark
    I installed the updates through the update manager today. I shut down my Laptop and now after starting it up again, I only get terminal access to advices. Grub is loading fine and after I picked Ubuntu 12.04 the screen get blank and I am asked to log in with my username and password in command line mode. If I log in I am still in command line mode. How do I get the "normal (graphical)" Ubuntu back? I hope you know what I mean. Since English is not my first language I can't explain this the way I would like to. Mark

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  • Could not write bytes: broken pipe - looking for log of removed packages

    - by user288987
    I have a dual boot system with 12.04 and windows 7. Ubuntu worked fine yesterday but this morning upon boot I get subject. Searched the forums and unsuccessful with recovery. I tried sudo gedit /var/log/apt/history.log to see the log of removed packages, but get the following... ** (gedit:976): WARNING **: Command line 'dbus-launch --autolaunch=2d7d18532e9953bc8a2b852e00000007 --binary-syntax --close-stderr' exited with non-zero exit status 1: Autolaunch error: X11 initialization failed.\n Cannot open display: Run 'gedit --help' to see a full list of available command line options. Anyone have any suggestions for a fix? Please let me know if you require any additional information. Thanks! Mark

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  • Update to 13.10 without GUI access

    - by Tom
    After upgrading 13.04 with the latest patches, I'm getting some really weird problems -- namely, logging in at the GUI just dumps me back at the GUI login screen. I can, however, get command line access from Ctrl-Alt-F1, and remotely via SSH. Given that I was doing these updates to step to 13.10, I figure I might as well continue the process, and then deal with the fallout once I get there. However, how can this be achieved with only the command line, and no X available? The only method I've found thus far is to run 'update-manager', which does not appear to have a CLI mode (and will not start without access to X). What's the solution? Thanks!

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  • Terminal echo issue

    - by user107602
    I've been using Ubuntu 10.04 LTS for a while, am quite new, using the terminal, made a script to open a project of mine containing multiple files with gedit - after execution of the respective script - gedit [filename1] [filename2] ... , terminal executes it successfully, gedit opens passed files and terminal is ready for another line. Well, today I came across a strange issue - after the execution of the above mentioned script, gedit initiates successfully, but terminal denies execution of commands and echoes all keyboard events, even specific ctrl+... functions - all until gedit is closed. I can't figure what caused this as my recent activity was focused around a C project, not regarding the terminal in any way. I recall being able to execute another line after initiating e.g. open gedit and compile a project within a single tab and session of a terminal window. Any help would be appreciated! Regards!

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  • The Beginner’s Guide to Nano, the Linux Command-Line Text Editor

    - by YatriTrivedi
    New to the Linux command-line? Confused by all of the other advanced text editors? How-To Geek’s got your back with this tutorial to Nano, a simple text-editor that’s very newbie-friendly. When getting used to the command-line, Linux novices are often put off by other, more advanced text editors such as vim and emacs. While they are excellent programs, they do have a bit of a learning curve. Enter Nano, an easy-to-use text editor that proves itself versatile and simple. Nano is installed by default in Ubuntu and many other Linux distros and works well in conjunction with sudo, which is why we love it so much Latest Features How-To Geek ETC The How-To Geek Valentine’s Day Gift Guide Inspire Geek Love with These Hilarious Geek Valentines RGB? CMYK? Alpha? What Are Image Channels and What Do They Mean? How to Recover that Photo, Picture or File You Deleted Accidentally How To Colorize Black and White Vintage Photographs in Photoshop How To Get SSH Command-Line Access to Windows 7 Using Cygwin How to Determine What Kind of Comment to Leave on Facebook [Humorous Flow Chart] View the Cars of Tomorrow Through the Eyes of the Past [Historical Video] Add Romance to Your Desktop with These Two Valentine’s Day Themes for Windows 7 Gmail’s Priority Inbox Now Available for Mobile Web Browsers Touchpad Blocker Locks Down Your Touchpad While Typing Arrival of the Viking Fleet Wallpaper

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  • Black screen on login, can get thru decrypt disk and access command line but no GUI

    - by t3lf3c
    Running 12.04 64 bit fresh alternative install, with disk crypto on a new Lenovo laptop Install didn't connect and install modules, even though I had the network cable plugged in and don't have any whacky proxy settings. I had to manually install ubunut-desktop and define sources after initial installation, so this seemed a bit weird (ISO matched MD5 sum though) I unplug the network cable, otherwise I get a black screen that I can do nothing with. So I turn laptop on, I have disk encryption, I type in the password at the Ubuntu decryption GUI then get "set up successfully" message "Waiting for network configuration ..." then "Waiting for up to 60 more seconds for network configuration" At this stage (a) If I wait for it then I get a black screen that I can do nothing with. (b) If I interrupt the process by pressing escape, then I break through to the command line. From the command line, I can go ahead and login, then plug my network cable in to do apt-get commands. As a precaution I do some house keeping which takes a few mins to run: sudo apt-get update sudo apt-get upgrade Running startx to get to the GUI gives: Fatal server errror: no screens found The .Xauthority file is being created in my home directory but it's empty. I review my order and note the system graphics: Intel HD Graphics (WWAN or mSATA capable) So it's weird that I can't get to the Gnome. It looks like drivers aren't working. Is there a way of getting Intel drivers from the command line? Or do you have any other suggestions on what to try next?

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  • Building/Installing Required a52 Plugin

    - by user71139
    I am trying to compile and install the a52 plugin following the instructions from here: https://help.ubuntu.com/community/DigitalAC-3Pulseaudio This worked on Ubuntu 11.10 but gives me some errors when I try to compile the plugin on Ubuntu 12.04. I've searched for a solution however I couldn't find much on this topic in general, not to talk about a solution. I would really appreciate some help on this: bogdan@bogdan-desktop:~$ cd ~/tmp/ bogdan@bogdan-desktop:~/tmp$ cd alsa-plugins-1.0.25/ bogdan@bogdan-desktop:~/tmp/alsa-plugins-1.0.25$ make make all-recursive make[1]: Entering directory `/home/bogdan/tmp/alsa-plugins-1.0.25' Making all in oss make[2]: Entering directory `/home/bogdan/tmp/alsa-plugins-1.0.25/oss' /bin/bash ../libtool --tag=CC --mode=compile gcc -DHAVE_CONFIG_H -I. -I.. -Wall -g -I/usr/include/alsa -g -O2 -MT ctl_oss.lo -MD -MP -MF .deps/ctl_oss.Tpo -c -o ctl_oss.lo ctl_oss.c ../libtool: line 831: X--tag=CC: command not found ../libtool: line 864: libtool: ignoring unknown tag : command not found ../libtool: line 831: X--mode=compile: command not found ../libtool: line 997: *** Warning: inferring the mode of operation is deprecated.: command not found ../libtool: line 998: *** Future versions of Libtool will require --mode=MODE be specified.: command not found ../libtool: line 1141: Xgcc: command not found ../libtool: line 1141: X-DHAVE_CONFIG_H: command not found ../libtool: line 1141: X-I.: command not found ../libtool: line 1141: X-I..: command not found ../libtool: line 1141: X-Wall: command not found ../libtool: line 1141: X-g: command not found ../libtool: line 1141: X-I/usr/include/alsa: No such file or directory ../libtool: line 1141: X-g: command not found ../libtool: line 1141: X-O2: command not found ../libtool: line 1141: X-MT: command not found ../libtool: line 1141: Xctl_oss.lo: command not found ../libtool: line 1141: X-MD: command not found ../libtool: line 1141: X-MP: command not found ../libtool: line 1141: X-MF: command not found ../libtool: line 1141: X.deps/ctl_oss.Tpo: No such file or directory ../libtool: line 1141: X-c: command not found ../libtool: line 1192: Xctl_oss.lo: command not found ../libtool: line 1197: libtool: compile: cannot determine name of library object from `': command not found make[2]: *** [ctl_oss.lo] Error 1 make[2]: Leaving directory `/home/bogdan/tmp/alsa-plugins-1.0.25/oss' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/bogdan/tmp/alsa-plugins-1.0.25' make: *** [all] Error 2 bogdan@bogdan-desktop:~/tmp/alsa-plugins-1.0.25$

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  • Toon/cel shading with variable line width?

    - by Nick Wiggill
    I see a few broad approaches out there to doing cel shading: Duplication & enlargement of model with flipped normals (not an option for me) Sobel filter / fragment shader approaches to edge detection Stencil buffer approaches to edge detection Geometry (or vertex) shader approaches that calculate face and edge normals Am I correct in assuming the geometry-centric approach gives the greatest amount of control over lighting and line thickness, as well eg. for terrain where you might see the silhouette line of a hill merging gradually into a plain? What if I didn't need pixel lighting on my terrain surfaces? (And I probably won't as I plan to use cell-based vertex- or texturemap-based lighting/shadowing.) Would I then be better off sticking with the geometry-type approach, or go for a screen space / fragment approach instead to keep things simpler? If so, how would I get the "inking" of hills within the mesh silhouette, rather than only the outline of the entire mesh (with no "ink" details inside that outline? Lastly, is it possible to cheaply emulate the flipped-normals approach, using a geometry shader? Is that exactly what the GS approaches do? What I want - varying line thickness with intrusive lines inside the silhouette... What I don't want...

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  • Maintaining a main project line with satellite projects

    - by NickLarsen
    Some projects I work on have a main line of features, but are customizable per customer. Up until now those customizations have been implemented as preferences, but now there are 2 problems with the system... The settings page is getting out of control with features. There are probably some improvements that could be made to the settings UI, but regardless, it is quite cumbersome setting up new instances for new customers. Customers have started asking for customizations which would be more easily maintained as separate threads instead of having tons of customizations code. Optimally I am envisioning some kind of source control in which features are either in the main project line and customizations per customer are maintained in a repo per customer set up. The customizations per project would need to remain separate but if a bug is found and fixed in a particular project, I would need to percolate the fix back to the main line and into all of the other customer repos. The problem is I have never seen this done before, and before spending time trying to find source control that can accommodate this scenario and implement it, I figure it best to ask if anyone has something less complicated or knows of a source control product which can handle this with very little hair pulling.

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  • Creating a 2D Line Branch

    - by Danran
    I'm looking into creating a 2D line branch, something for a "lightning effect". I did ask this question before on creating a "lightning effect" (mainly though referring to the process of the glow & after effects the lightning has & to whether it was a good method to use or not); Methods of Creating a "Lightning" effect in 2D However i never did get around to getting it working. So i've been trying today to get a seconded attempt going but i'm getting now-were :/. So to be clear on what i'm trying to-do, in this article posted; http://drilian.com/2009/02/25/lightning-bolts/ I'm trying to create the line segments seen in the images on the site. I'm confused mainly by this line in the pseudo code; // Offset the midpoint by a random amount along the normal. midPoint += Perpendicular(Normalize(endPoint-startPoint))*RandomFloat(-offsetAmount,offsetAmount); If someone could explain this to me it would be really grateful :).

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  • Drawing a texture line between two vectors in XNA WP7

    - by Krav
    I want to create a simple graph maker in WP7. The goal is to draw a texture line between two vectors what the user defines with touch. I already made the rotation, and it is working, but not correctly, because it doesn't calculate the line's texture height, and because of that, there are too many overlapping textures. So it does draw the line, but too many of them. How could I calculate it correctly? Here is the code: public void DrawLine(Vector2 st,Vector2 dest,NodeUnit EdgeParent,NodeUnit EdgeChild) { float d = Vector2.Distance(st, dest); float rotate = (float)(Math.Atan2(st.Y - dest.Y, st.X - dest.X)); direction = new Vector2(((dest.X - st.X) / (float)d), (dest.Y - st.Y) / (float)d); Vector2 _pos = st; World.TheHive.Add(new LineHiveMind(linetexture, _pos, rotate, EdgeParent, EdgeChild,new List<LineUnit>())); for (int i = 0; i < d; i++) { World.TheHive.Last()._lines.Add(new LineUnit(linetexture, _pos, rotate, EdgeParent, EdgeChild)); _pos += direction; } } d is for the Distance of the st (Starting node) and dest (Destination node) rotate is for rotation direction calculates the direction between the starting and the destination node _pos is for starting position changing Thanks for any suggestions/help!

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  • Point in Polygon, Ray Method: ending infinite line

    - by user2878528
    Having a bit of trouble with point in polygon collision detection using the ray method i.e. http://en.wikipedia.org/wiki/Point_in_polygon My problem is I need to give an end to the infinite line created. As with this infinite line I always get an even number of intersections and hence an invalid result. i.e. ignore or intersection to the right of the point being checked what I have what I want My current code based of Mecki awesome response for (int side = 0; side < vertices.Length; side++) { // Test if current side intersects with ray. // create infinite line // See: http://en.wikipedia.org/wiki/Linear_equation a = end_point.Y - start_point.Y; b = start_point.X - end_point.X; c = end_point.X * start_point.Y - start_point.X * end_point.Y; //insert points of vector d2 = a * vertices[side].Position.X + b * vertices[side].Position.Y + c; if (side - 1 < 0) d1 = a * vertices[vertices.Length - 1].Position.X + b * vertices[vertices.Length - 1].Position.Y + c; else d1 = a * vertices[side-1].Position.X + b * vertices[side-1].Position.Y + c; // If points have opposite sides, intersections++; if (d1 > 0 && d2 < 0 ) intersections++; if (d1 < 0 && d2 > 0 ) intersections++; } //if intersections odd inside = true if ((intersections % 2) == 1) inside = true; else inside = false;

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