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  • gluLookAt doesn't work

    - by Tyzak
    hi, i'm programming with opengl and i want to change the camera view: ... void RenderScene() //Zeichenfunktion { glClearColor( 1.0, 0.5, 0.0, 0 ); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT ); glLoadIdentity (); //1.Form: glBegin( GL_POLYGON ); //polygone glColor3f( 1.0f, 0.0f, 0.0f ); //rot glVertex3f( -0.5, -0.5, -0.5 ); //unten links 3 =3 koords, f=float glColor3f( 0.0f, 0.0f, 1.0f ); //blau glVertex3f( 0.5, -0.5, -0.5 ); //unten rechts glVertex3f( 0.5, 0.5, -0.5 );//oben rechts glVertex3f( -0.5, 0.5, -0.5 );//oben links glEnd(); Wuerfel(0.7); //creates cube with length 0.7 gluLookAt ( 0., 0.3, 1.0, 0., 0.7, 0., 0., 1., 0.); glFlush(); //Buffer leeren } ... when i change the parameter of gluLookAt, nothing happens, what do i wrong? thanks

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  • Does anyone know how to detect whether a Windows Service is running through Java

    - by GKelly
    There's plenty of information on running Java apps as services, but I need to know how to detect whether a windows service is running or not. Does anyone know how??? At the DOS prompt, I can run: tasklist /svc|findstr "NonRunningService" echo Return code for N onRunningService is %ERRORLEVEL% tasklist /svc|findstr "RunningService" echo Return code for RunningService is %ERRORLEVEL% I get the following: Return code for NonRunningService is 1 Return code for RunningService is 0 In code, I have: int retCode = Runtime.getRuntime.exec("tasklist /svc|findstr \"NonRunningService\"").waitFor(); System.out.println("Return code for NonRunningService is " + retCode); retCode = Runtime.getRuntime.exec("tasklist /svc|findstr \"RunningService\"").waitFor(); System.out.println("Return code for RunningService is " + retCode); I get the following output Return code for NonRunningService is 1 Return code for RunningService is 1 According to the JavaDocs, the waitFor() should block until the process finishes, and give me the exit value of the process. I've also tried using the Process/ProcessBuilder command line calls: //'tasklist /nh /fi "SERVICES eq RunningService"' will return a line for // each running service of the requested type. Process p1 = new ProcessBuilder("tasklist", "/nh", "/fi" "SERVICES eq RunningService").start(); p1.waitFor(); BufferedReader is = new BufferedReader(new InputStreamReader(p1.getInputStream())); String line = is.readLine(); System.out.println("Service - " + line); System.out.println("Running? ", (line==null?"No":"Yes"); gives: Service - Running? No even when I get lines in the output at the command line!

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  • Get Raw HTML of Node in JQuery

    - by viatropos
    I have used $("#parent").html() to get the inner html of #parent, but how do I get the html of the parent itself? The use case is, I grab an input node like this: var field = $('input'); I would like to be able to get the raw html of that node (<input type='text'>) with something like field.html(), but that returns empty. Is this possible?

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  • Regular expression help needed.

    - by Subrat
    Hi, Can anybody help me writting a regular expression to replace these characters with a empty string. Character list is given below. public static char[] delimiters = { ' ', '\r', '\n', '?', '!', ';', '.', ',', '`', ':', '(', ')', '{', '}', '[', ']', '|', '\'', '\\', '~', '=', '@', '>', '<', '&', '%', '-', '/', '#' }; Thanks. Subrat.

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  • Serialize XML child and keep namespaces in Java

    - by Guido García
    I have an Document object that is modeling a XML like this one: <RootNode xmlns="http://a.com/a" xmlns:b="http://b.com/b"> <Child /> </RootNode> Using Java DOM, I need to get the <Child> node and serialize it to XML, but keeping the root node namespaces. This is what I currently have, but it does not serialize the namespaces: public static void main(String[] args) throws Exception { String xml = "<RootNode xmlns='http://a.com/a' xmlns:b='http://b.com/b'><Child /></RootNode>"; DocumentBuilder builder = DocumentBuilderFactory.newInstance().newDocumentBuilder(); Document doc = builder.parse(new ByteArrayInputStream(xml.getBytes())); Node childNode = doc.getFirstChild().getFirstChild(); // serialize to string StringWriter sw = new StringWriter(); DOMSource domSource = new DOMSource(childNode); StreamResult streamResult = new StreamResult(sw); TransformerFactory tf = TransformerFactory.newInstance(); Transformer serializer = tf.newTransformer(); serializer.transform(domSource, streamResult); String serializedXML = sw.toString(); System.out.println(serializedXML); } Current output: <?xml version="1.0" encoding="UTF-8"?> <Child/> Expected output: <?xml version="1.0" encoding="UTF-8"?> <Child xmlns='http://a.com/a' xmlns:b='http://b.com/b' />

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  • Is there a way to pass another parameter in the preg_replace_callback callback function?

    - by DaNieL
    mmmh guys, i really hope my english is good enaught to explain what i need. Lets take this example (that is just an example!) of code: class Something(){ public function Lower($string){ return strtolower($string); } } class Foo{ public $something; public $reg; public $string; public function __construct($reg, $string, $something){ $this->something = $something; $this->reg = $reg; $this->string = $string; } public function Replace(){ return preg_replace_callback($this->reg, 'Foo::Bar', $this->string); } public static function Bar($matches){ /* * [...] * do something with $matches and create the $output variable * [...] */ /* * I know is really useless in this example, but i need to have an istance to an object here * (in this example, the Something object, but can be something else!) */ return $this->something->Lower($output); } } $s = new Something(); $foo = new Foo($myregexp, $mystring, $s); $content = $foo->Replace(); So, the php manual say that to use a class method as callback in preg_replace_callback(), the method must be abstract. I need to pass an instance of a previuosly initialized object (in the example, an instance of the Something class) at the callback function. I tryed to use call_user_func(), but doesnt work (becose in this way i miss the matches parameter). Is there a way to do that, or have i to separate the process (doing before preg_match_all, for each match retrieve the replace value, and then a simple preg_replace)?

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  • radio button to php

    - by Azzyh
    Hello so i have this form: <form action="javascript:DoSCInsert()" method="post"> <textarea onfocus="this.cleared=true;javascript:clearContents(this);" rows="5" cols="40" id="comment" name="comment">...</textarea> Yes: <input type="radio" value="Y" id="SCvoteY" name="vote"></input> No: <input type="radio" id="SCvoteN" value="N" name="vote"> </input> <input type="hidden" name="fID" id="fID" value="<? echo $_GET["id"]; ?>" /> <input onsubmit="if (!this.comment.cleared) clearContent(this.comment); return true;" type="submit" name="Submit" value="Stem!"/> </form> Anyway so i have this javascript also that tranfers the output info to insertSC.php: function DoSCInsert(){ $("#SCres").html("to sek.."); var nocache = '0'; var data = { fID : $("#fID").val(), SCvote : $("#SCvoteY").val(), SCvote : $("#SCvoteN").val(), comment: $("#comment").val(), nocache: nocache }; $.get('insertSC.php', data, onSCInsertComplete); } function onSCInsertComplete(data,textstatus){ $("#SCres").html(data); } and in my insertSC.php i have this: <?php echo $_GET['comment']." - ".$_GET['SCvoteY']; ?> Now i get out comment but no SCvoteY.... this is just a test i made, what i was really making is that you vote Y or N and then it inserts into the vote column Y or N(what you pickd) now i couldnt figure how to do it/something went wrong somewhere and now i cant even get out SCvoteY i just get undefined index What i need help with is what i just mention i want to when you either choose Y or N it should output what you choose. If you didnt choose any (empty isset?) then false.. else echo Y or N(what you picked)

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  • Problem with Date Query - sql server 2008

    - by Gold
    hi i have this date's & Time's: date1: 10/04/2010 - Time: 08:09 date2: 11/04/2010 - Time: 08:14 i need to show all the date's between 10/04/2010 time 06:00 and 11/04/2010 time 6:00 i write this: select * from MyTbl where ((Tdate BETWEEN '20100410' AND '20100411') and (Ttime BETWEEN '06:00' and '06:00')) but i get empty table thank's in advance

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  • Inspecting variables in Xdebug problems

    - by tom
    I've been using xdebug to do php debugging (netbeans or eclipse). I am usually able to inspect variables OK. However, sometimes when I expand a disclosure triangle for a variable -- typically when the client is making an AJAX call -- it will result in an empty response being returned and causing the AJAX call to fail. Has anyone run into this? Is there a way to make PHP debugging with xdebug more robust? (Not being able to inspect variables defeats the purpose of a debugger. Thanks

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  • Test for absence of an input tag's value attribute

    - by Jeff
    How can I confirm the absence of a HTML attribute in a Rails RSpec test? I can verify that an input tag has a value attribute and that it is an empty string like so: response.should have_tag("input[name=?][value=?]", "user[password]", "") response.should have_tag("input[name=?][value=?]", "user[password_confirmation]", "") But what I want to do is verify that my input fields do not have a value attribute at all (i.e., a blank field).

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  • Audio -- How much performance improvement can I expect from from reducing function calls by using bu

    - by morgancodes
    I'm working on an audio-intensive app for the iPhone. I'm currently calling a number of different functions for each sample I need to calculate. For example, I have an envelope class. When I calculate a sample, I do something like: sampleValue = oscilator->tic() * envelope->tic(); But I could also do something like: for(int i = 0; i < bufferLength; i++){ buffer[i] = oscilatorBuffer[i] * evelopeBuffer[i]; } I know the second will be more efficient, but don't know by how much. Are function calls expensive enough that I'd be crazy not to use buffers if I care event a tiny bit about performance?

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  • Django upload failing on request data read error

    - by Jake
    Hi All, I've got a Django app that accepts uploads from jQuery uploadify, a jQ plugin that uses flash to upload files and give a progress bar. Files under about 150k work, but bigger files always fail and almost always at around 192k (that's 3 chunks) completed, sometimes at around 160k. The Exception I get is below. exceptions.IOError request data read error File "/usr/lib/python2.4/site-packages/django/core/handlers/wsgi.py", line 171, in _get_post self._load_post_and_files() File "/usr/lib/python2.4/site-packages/django/core/handlers/wsgi.py", line 137, in _load_post_and_files self._post, self._files = self.parse_file_upload(self.META, self.environ[\'wsgi.input\']) File "/usr/lib/python2.4/site-packages/django/http/__init__.py", line 124, in parse_file_upload return parser.parse() File "/usr/lib/python2.4/site-packages/django/http/multipartparser.py", line 192, in parse for chunk in field_stream: File "/usr/lib/python2.4/site-packages/django/http/multipartparser.py", line 314, in next output = self._producer.next() File "/usr/lib/python2.4/site-packages/django/http/multipartparser.py", line 468, in next for bytes in stream: File "/usr/lib/python2.4/site-packages/django/http/multipartparser.py", line 314, in next output = self._producer.next() File "/usr/lib/python2.4/site-packages/django/http/multipartparser.py", line 375, in next data = self.flo.read(self.chunk_size) File "/usr/lib/python2.4/site-packages/django/http/multipartparser.py", line 405, in read return self._file.read(num_bytes) When running locally on the Django development server, big files work. I've tried setting my FILE_UPLOAD_HANDLERS = ("django.core.files.uploadhandler.TemporaryFileUploadHandler",) in case it was the memory upload handler, but it made no difference. Does anyone know how to fix this?

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  • javascript associative array length using jquery

    - by Prashant
    Hello All I am using javascript associative array like: var testarray = []; testarray['one'] = '1'; testarray['two'] = '2'; testarray['three'] = '3'; I am also using jquery alongside. How can I check length of this associative array using jquery or any other method? Basically i want to check whether this array is empty or not. Thank you.

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  • How do I label a group of radio boxes for WCAG / 508 Compliance? Is ASP.NET doing it wrong?

    - by Mark Brittingham
    I am trying to bring an existing web site into greater conformance with WCAG 2.0 Guidelines and am a bit confused over the output emitted by Microsoft (ASP.NET 4.0 although it was the same in 3.5). Suppose you have a question like: "How would you rate your health?" and a set of 5 answers created using an ASP.NET RadioButtonList. I place the question in an asp:Label with an "AssociatedControlID" that matches the ID of the RadioButtonList (e.g. "SelfRatingBox"). Seems pretty easy... Only the output that is generated has an html "label" with a "For" that is equal to the ID of a table that wraps up the RadioButtons. I assumed that this would work with page readers but our 508 compliance guy is saying that the reader isn't associating the label with the radio controls. The WCAG guidelines indicate that you have to use a fieldset around the entire group and a legend to capture the associated text (the question). So what gives? It would be ideal if MS could take my label and the radiobuttonlist and generate the appropriate fieldset and legend tags but it seems pretty clear that to achieve WCAG compliance, I'll have to roll my own. Is this correct or am I missing something?

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  • Matlab and .net problem with character string function input

    - by Peter
    I have a MATLAB function that I've compiled into a .net library. The function is a simple one that takes a character array as an input and a numeric array as output: function insert = money(dateLimit) .. insert = [1 2]; The function works fine when no function arguments are specified (a default argument is provided inside the function) Dim sf As New SpreadFinder.SpreadFinder Dim output = sf.money() As soon as an argument is specified .net complains. I'm thinking this should be easy and has been done before but searching through MATLAB documentation doesn't offer much help. Here's what I've tried. The sf.money() overload for the function with arguments is (numArgsOut as Integer, argsOut as MWArray, argsIn as MWArray) and hence that's what I've tried. What am I missing? Dim sf As New SpreadFinder.SpreadFinder Dim inputArgs(1) As Arrays.MWCharArray Dim dateLimitString As String = "some string" inputArgs(0) = New Arrays.MWCharArray(dateLimitString) Dim outputArgs(1) As Arrays.MWNumericArray outputArgs(0) = New Arrays.MWNumericArray() sf.money(1, outputArgs, inputArgs) Gives System.NullReferenceException : Object reference not set to an instance of an object. at MathWorks.MATLAB.NET.Utility.MWMCR.EvaluateFunction(String functionName, Int32 numArgsOut, Int32 numArgsIn, MWArray[] argsIn) at MathWorks.MATLAB.NET.Utility.MWMCR.EvaluateFunction(String functionName, Int32 numArgsOut, MWArray[]& argsOut, MWArray[] argsIn) at SpreadFinder.SpreadFinder.money(Int32 numArgsOut, MWArray[]& argsOut, MWArray[] argsIn)

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  • program that writes the even and odd numbers

    - by user292489
    enter code herei was writting a program that can read a set of numbers file called dog.txt; and also writes to two file separating odd and even. i was able to compile my program however, the output expected is not the same which was supposed to be even numbers in one file called EVEN, odd numbers in file odd. #include <stdio.h> #include <stdlib.h> int main(int argc, char *argv[]) { int i; int even,odd; int num; if (argc != 4) { printf("Usage: executable in_file output_file\n"); exit(0); } FILE *dog = fopen(argv[1], "r"); FILE *feven= fopen(argv[2], "w"); FILE *fodd= fopen (argv[3], "w"); while (fscanf(dog, "%d", &num) != EOF) { if (0==i%2){ i++; printf("even= %d\n", num); } else if(i!=0){ i++; printf("odd= %d\n", num); } } fclose(feven); fclose(fodd); fclose(dog); return 0; } output: even= 1 odd= 2 even= 34 odd= 44 even= 66 odd= 78 even= 94 odd= 21 even= 23 odd= 54 even= 44 odd= 65 even= 78 odd= 68 even= 92

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  • flex: entering itemEditor when no value is assigned to data property in custom itemRenderer

    - by Markus
    Hi there, Im having a strange problem with my custom itemRenderer in the following Methode I assign the values to the cell. The problem is, when the side.element is still empty. In this case the itemEditor will not show up by default... override public function set data(side:Object):void{ super.data = side.element.toString(); choiceLabel.text = side.element.toString(); answer.selected = side.element.@answer; } Thanks for your help! Markus

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  • jQueryUI Sortable won't accept connected Draggable on a nested UL

    - by Eric
    I've posted an example here: http://jsfiddle.net/ericclemmons/LEHLX/2/ Really, what it comes down to is the classic "assigning users to groups" issue. I have a list of users and a list of groups, but I'd like to be able to have nesting of the groups: user "Eric" would be in "Users", "Web", and "Administrators". The problem is that I cannot drag a user to an empty <ul> in the list.

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  • How to get Eclipse + PyDev + App Engine + Unit testing to work?

    - by PEZ
    I want to run my unit tests for a Python Google App Engine project using Run As = Python unit-test But when I try that all my Model tests bail with the error message: BadArgumentError: app must not be empty. Anyone got this to work? NB: The tests runs fine using Nose --with-gae. But I want the PyDev integration with hyperlinking of resources and such.

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  • mingw32-make : "Input line too long" issue

    - by hjsblogger
    We have a Makefile which runs on a Windows 2003 machine and we are using mingw32-make for it. Since the Makefile has many include paths, it exceeds the buffer size of 8K that the cmd can handle [Ref - http://support.microsoft.com/kb/830473/EN-US/due to which the compilation results in "input line too long" issue. I wanted to know the following - What would be the best way to optimize the Makefile as I have already removed unwanted compiler switches, include paths etc. Is there any way we can put all the INCLUDE paths in one .txt file and import it in the Makefile.I could not find any mingw32 documentation for the same. Any other inputs/hints/reference links are most welcome. Thanks, -HJSblogger

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  • Why doesn't Perl file glob() work outside of a loop in scalar context?

    - by Rob
    According to the Perl documentation on file globbing, the <*> operator or glob() function, when used in a scalar context, should iterate through the list of files matching the specified pattern, returning the next file name each time it is called or undef when there are no more files. But, the iterating process only seems to work from within a loop. If it isn't in a loop, then it seems to start over immediately before all values have been read. From the Perl docs: In scalar context, glob iterates through such filename expansions, returning undef when the list is exhausted. http://perldoc.perl.org/functions/glob.html However, in scalar context the operator returns the next value each time it's called, or undef when the list has run out. http://perldoc.perl.org/perlop.html#I/O-Operators Example code: use warnings; use strict; my $filename; # in scalar context, <*> should return the next file name # each time it is called or undef when the list has run out $filename = <*>; print "$filename\n"; $filename = <*>; # doesn't work as documented, starts over and print "$filename\n"; # always returns the same file name $filename = <*>; print "$filename\n"; print "\n"; print "$filename\n" while $filename = <*>; # works in a loop, returns next file # each time it is called In a directory with 3 files...file1.txt, file2.txt, and file3.txt, the above code will output: file1.txt file1.txt file1.txt file1.txt file2.txt file3.txt Note: The actual perl script should be outside the test directory, or you will see the file name of the script in the output as well. Am I doing something wrong here, or is this how it is supposed to work?

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