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  • Getting shortest path between 2 nodes in quickgraph

    - by Xtapodi
    Hello, i want to ask if there is any way to generate the shortest path from node A to node B without generating the shortest paths to all the other nodes (stop when node B is in the examined set) with A-star in QuickGraph. I want to plug QuickGraph into a game and thus generating all the paths is not allowed from the time limitations the environment imposes. Any other suggestions to solve my problem in C# are welcome Thanks in advance, Xtapodi

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  • C check if file exists, including on PATH

    - by Gary
    Hi, Given a filename in C, I want to determine whether this file exists and has execute permission on it. All I've got currently is: if( access( filename, X_OK) != 0 ) { But this wont search the PATH for files and will also match directories (which I don't want). Could anyone please help?

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  • How to send emails with a Return Path in .net 3.5

    - by Haroon
    Can any one guide me on how i can send emails with a return path in ASP.net 3.5 / C# 3.5. I know this was possible few years back but now due to spoofing issues this is not possible. I have been looking on internet but no use. I want the emails if bounced, should reach my bounce mail box, which could be like [email protected]. Please guide. Really stuck ... Best regards, Haroon

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  • Heroku + Yii "Application runtime path is not valid"

    - by JStriedinger
    I'm trying to deploy a Yii webapp into Heroku but, it keep throwing at me a weird error: Application runtime path "/app/www/protected/runtime" is not valid. Please make sure it is a directory writable by the Web server process. Makes no sense and I know is something to do with Heroku because in my local machine it works fine. Does anyone what does this means? what do I need to do in Heroku ti fix this?? Many thanks.

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  • How to get the path of a shortcut (NOT target path) in .net?

    - by okkko
    Hello world! I have an .exe application written in vb.net. When I make shortcuts to the application, say on desktop (or anywhere else) and then click on them I want to programatically get the path to that shortcut, ie. C:/Users/xxx/Desktop/shortcut.lnk. I want this so I can store the pairs shortcuts : (program + different cmd args).

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  • Adobe Air: Is it possible to save files to a network path (osx)

    - by tommy
    I was wondering if it would be possible to write a file, not to the local system, but to a connected server or other network path. Would i have to use an external php interface for this or can i entrust this to the AIR framework? I'm pretty sure that AIR has certain security precautions to prevent this. Thanks a bunch! Regards

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  • GIT core.editor setup on windows along w application PATH reference

    - by delinquentme
    Hey all so i wehnt ahead and opened up my .gitconfig file and manually input the [core] editor = 'C:/Program Files/Notepad++/notepad++.exe' which would allow me to execute command: (im trying to setup my .gitignore list) "C:/Program Files/Notepad++/notepad++.exe" .gitignore im JUSt not interested in typing this out every time that i need to make a file SO ive heard something about editing PATH to allow me to replace the above with something like: npp .gitignore any help would be aprpeciated!

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  • Create whole path automatically when writing to a new file

    - by Bernhard V
    Hi, I want to write a new file with the Java FileWriter. I use it like this: FileWriter newJsp = new FileWriter("C:\\user\Desktop\dir1\dir2\filename.txt"); Now the dir1 and dir2 currently don't exist. I want Java to create them automatically if they aren't already there. Actually Java should set up the whole file path if not already existing. How can I achieve this?

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  • Best way to implement mouse-based movement in MMOG

    - by fiftyeight
    I want to design an MMO where players click the destination they want to walk to with their mouse and the character moves there, similar to Runescape in this manner. I think it should be easier than keyboard movement since the client can simply send the server the destination each time the player clicks on a destination. The main thing I'm trying to decide is what to do when there are obstacles in the way. It's no problem to implement a simple path-finding solution on the client, the question is if the server will do path-finding as well, since it'll probably take too much Computation power from the server. What I though is that when there is an obstacle the client will send only the first coordinate it plans to go to and then when he gets there he'll send the next coordinate automatically. For example if there is a rock in the way the character will decide on a route that is made of two destinations so it goes around the rock and when it arrives at the first destination it sends the next coordinate. That way if the player changes destination is the middle he won't send unnecessary information. Is this a good way to implement it and is there a standard way MMOGs usually do it? EDIT: I should also mention that the server will make sure all movements are legal and there aren't any walls in the way etc. In the way I wrote it should be quite easy since all movements will be sent in straight lines so the server will just check there aren't any obstacles along that line.

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  • how to obtain the relative path of a resource in a j2ee project

    - by Neeraj
    I have a Dynamic Web Project having a flat file (or say text file). I have created a servlet in which I need to use this file. My code is as following: protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // String resource = request.getParameter ("json") ; if ( resource != null && !resource.equals ( "" ) ) { //use getResourceAsStream ( ) to properly get the file. InputStream is = getServletContext ().getResourceAsStream ("rateJSON") ; if ( is != null ) { // the resource exists response.setContentType("application/json"); response.setHeader("Pragma", "No-cache"); response.setDateHeader("Expires", 0); response.setHeader("Cache-Control", "no-cache"); StringWriter sw = new StringWriter ( ) ; for ( int c = is.read ( ) ; c != -1; c = is.read ( ) ) { sw.write ( c ) ; } PrintWriter out = response.getWriter(); out.print (sw.toString ()) ; out.flush(); } } } The problem is that the InputStream is has null value. I'm not sure how to get the correct relative path. I'm using JBOSS as the app server. I have added the resource file in the WebContent directory of a Dynamic Web Project. As a different approch, I tried this: protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub ServletConfig config = getServletConfig(); String contextName = config.getInitParameter("ApplicationName"); System.out.println("context name"+ contextName); String contextPath = config.getServletContext().getRealPath(contextName); System.out.println("context Path"+contextPath); //contextPath = contextPath.substring(0, contextPath.indexOf(contextName)); contextPath += "\\rateJSON.txt"; System.out.println(contextPath); String resource = request.getParameter ("json") ; System.out.println("Hi there1"+resource); if ( resource != null && !resource.equals ( "" ) ) { System.out.println("Hi there"); //use getResourceAsStream ( ) to properly get the file. //InputStream is = getServletContext ().getResourceAsStream (resource) ; InputStream is = getServletConfig().getServletContext().getResourceAsStream(contextPath); if ( is != null ) { // the resource exists System.out.println("Hi there2"); response.setContentType("application/json"); response.setHeader("Pragma", "No-cache"); response.setDateHeader("Expires", 0); response.setHeader("Cache-Control", "no-cache"); StringWriter sw = new StringWriter ( ); for ( int c = is.read ( ) ; c != -1; c = is.read ( ) ) { sw.write ( c ) ; System.out.println(c); } PrintWriter out = response.getWriter(); out.print (sw.toString ()) ; System.out.println(sw.toString()); out.flush(); } } } The value of contextPath is now: C:\JBOSS\jboss-5.0.1.GA\server\default\tmp\4p72206b-uo5r7k-g0vn9pof-1-g0vsh0o9-b7\Nationwide.war\WEB-INF\rateJSON But at this location the rateJSON file is not there? It seems JBOSS is not putting this file in the App.war or doesn't deploy it??? Could someone please help me?

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  • Spaces and Parenthesis in windows PATH variable screws up batch files.

    - by NoName
    So, my path variable (System-Adv Settings-Env Vars-System-PATH) is set to: C:\Python26\Lib\site-packages\PyQt4\bin; %SystemRoot%\system32; %SystemRoot%; %SystemRoot%\System32\Wbem; %SYSTEMROOT%\System32\WindowsPowerShell\v1.0\; C:\Python26\; C:\Python26\Scripts\; C:\cygwin\bin; "C:\PathWithSpaces\What_is_this_bullshit"; "C:\PathWithSpaces 1.5\What_is_this_bullshit_1.5"; "C:\PathWithSpaces (2.0)\What_is_this_bullshit_2.0"; "C:\Program Files (x86)\IronPython 2.6"; "C:\Program Files (x86)\Subversion\bin"; "C:\Program Files (x86)\Git\cmd"; "C:\Program Files (x86)\PuTTY"; "C:\Program Files (x86)\Mercurial"; Z:\droid\android-sdk-windows\tools; Although, obviously, without the newlines. Notice the lines containing PathWithSpaces - the first has no spaces, the second has a space, and the third has a space followed by a parenthesis. Now, notice the output of this batch file: C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin\>vcvars32.bat C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin>"C:\Program Files (x86 )\Microsoft Visual Studio 9.0\Common7\Tools\vsvars32.bat" Setting environment for using Microsoft Visual Studio 2008 x86 tools. \What_is_this_bullshit_2.0";"C:\Program was unexpected at this time. C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin> set "PATH=C:\Pro gram Files\Microsoft SDKs\Windows\v6.0A\bin;C:\Python26\Lib\site-packages\PyQt4\ bin;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\ WindowsPowerShell\v1.0\;C:\Python26\;C:\Python26\Scripts\;C:\cygwin\bin;"C:\Path WithSpaces\What_is_this_bullshit";"C:\PathWithSpaces 1.5\What_is_this_bullshit_1 .5";"C:\PathWithSpaces (2.0)\What_is_this_bullshit_2.0";"C:\Program Files (x86)\ IronPython 2.6";"C:\Program Files (x86)\Subversion\bin";"C:\Program Files (x86)\ Git\cmd";"C:\Program Files (x86)\PuTTY";"C:\Program Files (x86)\Mercurial";Z:\dr oid\android-sdk-windows\tools;" or specifically the line: \What_is_this_bullshit_2.0";"C:\Program was unexpected at this time. So, what is this bullshit? Specifically: Directory in path that is properly escaped with quotes, but with no spaces = fine Directory in path that is properly escaped with quotes, and has spaces but no parenthesis = fine Directory in path that is properly escaped with quotes, and has spaces and has a parenthesis = ERROR Whats going on here? How can I fix this? I'll probably resort to a junction point to let my tools still work as workaround, but if you have any insight into this, please let me know :)

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  • Algorithm shortest path between all points

    - by Jeroen
    Hi, suppose I have 10 points. I know the distance between each point. I need to find the shortest possible route passing trough all points. I have tried a couple of algorithms (Dijkstra, Floyd Warshall,...) and the all give me the shortest path between start and end, but they don't make a route with all points on it. Permutations work fine, but they are to resource expensive. What algorithms can you advise me to look into for this problem? Or is there a documented way to do this with the above mentioned algorithms? Tnx Jeroen

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  • Path for Delphi libraries

    - by Wouter van Nifterick
    Where do you guys store 3rd party (and your own) components? Do you keep separate copies per Delphi version? For years I've been using c:\program files\borland\delphi7\lib\, even for Delphi 2006, 2007, 2009 and 2010, like this: c:\program files\borland\delphi7\lib\AggPas\ c:\program files\borland\delphi7\lib\DeHL\ c:\program files\borland\delphi7\lib\DevExpress\ c:\program files\borland\delphi7\lib\FastCode\ c:\program files\borland\delphi7\lib\FastMM\ c:\program files\borland\delphi7\lib\Fundamentals\ c:\program files\borland\delphi7\lib\Graphics32\ c:\program files\borland\delphi7\lib\JCL\ c:\program files\borland\delphi7\lib\JVCL\ c:\program files\borland\delphi7\lib\OmniThread\ c:\program files\borland\delphi7\lib\Raize\ c:\program files\borland\delphi7\lib\TeeChartPro\ c:\program files\borland\delphi7\lib\TurboPower\ c:\program files\borland\delphi7\lib\VirtualTreeView\ c:\program files\borland\delphi7\lib\Zeos\ However, nowadays I don't even use Delphi7 anymore (what can it do that 2010 can't?), so this path doesn't make much sense anymore. I'm about to install windows7 on my home machine, so I'm thinking on something like this: c:\src\DelphiLib\ Any better ideas?

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  • Use absolute path for easier modify include path in future?

    - by i need help
    config.php put at the root level, this file will be included in any pages. Then at config.php <?php define( 'ROOT_DIR', dirname(__FILE__) ); ?> So at all other pages from different sub/a.php , sub/sub/b.php directories, when I want to include a specific file in specific location, I just need to include( ROOT_DIR.'/include/functions.php' ); In windows server, the ROOT_DIR bring the value to C:/inetpub/vhosts/domain.com Is this a good/secure way? It seems like via this way, when I move the b.php to other upper level folder, I don't need to do any changes to the include file path, which is good for maintenance. Any cons? Like SEO wise, or any other reason... What you guys think.

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  • shortest path search in a map represented as 2d shapes

    - by joe_shmoe
    Hi, I have a small library of a few shortest path search algorithms. They were developed for simple undirected graphs (the normal representation - vertices and edges). Now I'd like to somehow apply them on a bit different scenario - where the maps are represented as 2-dimensional shapes, connected by shared edges (edges of the polygons, that is). In this scenario, the search can start/end either at a map object or some point (x,y). What would be the best approach? Try to apply the algorithms onto shapes? or try to extract a 'normal' graph out of the shapes (I have preprocessing time available)? Any advice would be much appreciated, as I'm really not sure which way to go, and I don't have enough time (and skill) to explore many options... Thanks a lot

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  • what \bin to add to system Path env var from a jdk

    - by raticulin
    If you install the latest java 1.6 jdk, without installing the public jre option, you end up having two \bin dirs with java.exe: %JAVA_HOME%\jre\bin %JAVA_HOME%\bin if you compare those dirs, there are a few files that are identical (java.exe etc), and a bunch that are either in one or the other. So far I used to add %JAVA_HOME%\bin to my Path environment var, but now I am wondering, does it make a difference? Is there any side effect to choose one or the other? And would not be much cleaner if the installation had only one java.exe and \bin folder?

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  • How can I have multiple navigation paths with Django, like a simplifies wizard path and a full path?

    - by Zeta
    Lets say I have an application with a structure such as: System set date set name set something Other set death ray target calibrate and I want to have "back" and "next" buttons on a page. The catch is, if you're going in via the "wizard", I want the nav path to be something like "set name" - "set death ray target" - "set name". If you go via the Advanced options menu, I want to just iterate options... "set date" - "set name" - "set something" - "set death ray target" - calibrate. So far, I'm thinking I have to use different URIs, but that's that. Any ideia how this could be done? Thanks.

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  • xcopy not accepting a relative path as source parameter on certain computers

    - by slicedtoad
    xcopy /e /q ".\dlls\*.*" "%programfiles(x86)%\foo" >> TEMP xcopy /e /q dlls "%programfiles(x86)%\foo" >> TEMP xcopy /e /q ".\dlls" "%programfiles(x86)%\foo" >> TEMP All of the above work on two of my machines (windows 7 64bit). But on two peers' laptops (windows 7 64 bit and windows 8 64bit) they return file dlls not found or (in the case of the first one) file *.* not found Can someone shed some light here? The only difference I can see between the machines is possibly permissions. But I don't see how that would affect xcopy's ability to recognize a local path.

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  • Creating a relative path to a Database in Asp.net for a library

    - by Greener
    In school I am part of a team of four working to create a GUI to translate the paper records of a made-up company and their functionality to a digital format. We're using an ASP.NET website for this purpose. Basically we use stored procedures and C# classes to represent the database. The folder we're using for the project contains the site and the libraries in separate folders. If I try to open the site from the folder containing both these elements the site will not run. I want to know if there is some way I can set up a relative path to the database in the Settings.Settings.cs file (or by some other means) of my libraries so I don't have to constantly change the database location for the connection string value every time we move the project. I suppose I should also mention that the database is in an App_Data folder.

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  • Collision detection when pathfinding with pathnodes, UDK

    - by Dave Voyles
    I'm trying to create a class that allows my AIController to path find using pathnodes (NOT NavMeshes). It's doing a swell job of going from point to point in a set order (although I would like for it to be a random patrol at some point), but it gets caught up on collision from time to time. I.E. He'll walk the same set path, and when he runs into the blocks in the middle of the map he continues to rub against them until they finish, and continues on his merry way to the next path node. How can I prevent this from happening, or at least have him move from the wall if he does a trace and detects that it is there? It looks like I need to use MoveToward() instead of MoveTo(), as MoveToward allows the pawn to adjust its course during movement. I'm just not sure of how to use those paramters. Mougli has a decent tutorial on it[/URL], but I can't seem to get it to work correctly with my pathnode array. class PathfindingAIController extends UDKBot; var array Waypoints; var int _PathNode; //declare it at the start so you can use it throughout the script var int CloseEnough; simulated function PostBeginPlay() { local PathNode Current; super.PostBeginPlay(); //add the pathnodes to the array foreach WorldInfo.AllActors(class'Pathnode',Current) { Waypoints.AddItem( Current ); } } simulated function Tick(float DeltaTime) { local int Distance; local Rotator DesiredRotation; super.Tick(DeltaTime); if (Pawn != None) { // Smoothly rotate the pawn towards the focal point DesiredRotation = Rotator(GetFocalPoint() - Pawn.Location); Pawn.FaceRotation(RLerp(Pawn.Rotation, DesiredRotation, 3.125f * DeltaTime, true), DeltaTime); } Distance = VSize2D(Pawn.Location - Waypoints[_PathNode].Location); if (Distance <= CloseEnough) { _PathNode++; } if (_PathNode >= Waypoints.Length) { _PathNode = 0; } GoToState('Pathfinding'); } auto state Pathfinding { Begin: if (Waypoints[_PathNode] != None) // make sure there is a pathnode to move to { MoveTo(Waypoints[_PathNode].Location); //move to it `log("STATE: Pathfinding"); } } DefaultProperties { CloseEnough=400 bIsplayer = True }

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  • Moving around/avoiding obstacles

    - by János Harsányi
    I would like to write a "game", where you can place an obstacle (red), and then the black dot tries to avoid it, and get to the green target. I'm using a very easy way to avoid it, if the black dot is close to the red, it changes its direction, and moves for a while, then it moves forward to the green point. How could I create a "smooth" path for the computer controlled "player"? Edit: Not the smoothness is the main point, but to avoid the red blocking "wall" and not to crash into it and then avoid it. How could I implement some path finding algorithm if I just have basically 3 points? (And what would it make the things much more complicated, if you could place multiple obstacles?)

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