Search Results

Search found 15591 results on 624 pages for 'problems'.

Page 388/624 | < Previous Page | 384 385 386 387 388 389 390 391 392 393 394 395  | Next Page >

• Paging a UIScrollView with a large PDF

  - by Fousa

  I try to create a simple UIScrollView with paging. And I want to be able to scroll through a large PDF document, but this gives me some problems... I tried the following options: Convert all the PDF pages to UIImages at startup, this works, but is very slow on start Manually drawing the PDF page in the drawRect, but yet again this was slow... And I prefer not to load everything at startup but to do it during the usage. Did anyone did this recently? Can't seem to find a nice example project. Thnx! Jelle

  Read the article

• How can I maximally partition a set?

  - by Gregory Higley

  I'm trying to solve one of the Project Euler problems. As a consequence, I need an algorithm that will help me find all possible partitions of a set, in any order. For instance, given the set 2 3 3 5: 2 | 3 3 5 2 | 3 | 3 5 2 | 3 3 | 5 2 | 3 | 3 | 5 2 5 | 3 3 and so on. Pretty much every possible combination of the members of the set. I've searched the net of course, but haven't found much that's directly useful to me, since I speak programmer-ese not advanced-math-ese. Can anyone help me out with this? I can read pretty much any programming language, from BASIC to Haskell, so post in whatever language you wish.

  Read the article

• What do you do when you feel you need a variadic list comprehension?

  - by cspyr0

  I would like to make a method where I could give it a list of lengths and it would return all combinations of cartesian coordinates up to those lengths. Easier to explain with an example: cart [2,5] Prelude> [ [0,0],[0,1],[0,2],[0,3],[0,4],[1,0],[1,1],[1,2],[1,3],[1,4] ] cart [2,2,2] Prelude> [ [0,0,0],[0,0,1],[0,1,0],[0,1,1],[1,0,0],[1,0,1],[1,1,0],[1,1,1] ] A simple list comprehension won't work because I don't know how long the lists are going to be. While I love Haskell's simplicity for many problems, this is one that I could write procedurally (in C or something) in 5 minutes whereas Haskell gives me an aneurysm! A solution to this specific problem would help me out a lot; I'd also love to hear about your thought processes when tackling stuff like this.

  Read the article

• Many Associations Leading to Slow Query

  - by Joey Cadle

  I currently have a database that has a lot of many to many associations. I have services which have many variations which have many staff who can perform the variation who then have details on themselves like name, role, etc... At 10 services with 3 variations each and up to 4 out of 20 staff attached to each service even doing something as getting all variations and the staff associated with them takes 4s. Is there a way I can reduce these queries that take a while to process? I've cut down the queries by doing eager loading in my DBM to reduce the problems that arise from 1+N issues, but still 4s is a long query for just a testing stage. Is there a structure out there that would help make such nested many to many associations much quicker to select? Maybe combining everything past the service level into a single table with a 'TYPE' column ?? I'm just not knowledgable enough to know the solution that turns this 4s query into a 300MS query... Any suggestions would be helpful.

  Read the article

• ListView is Widget(View) or Layout(Viewgroup)?

  - by Manoj Maurya

  Hi All, I need your help to explore few topics in Android. My understanding is Widget is View and Layout is ViewGroups in Android. I described the problems as below- Please go through the below links- developer.android.com/guide/topics/ui/custom-components.html- (add http:// in the beginning) developer.android.com/resources/tutorials/views/index.html - (add http:// in the beginning) In the first link ListView is included as Widget and in the Second link ListView has been shown as Layout. So, is ListView is Widget(View) or Layout(Viewgroup)? Same is the case for Spinner in Andriod developer.android.com/resources/tutorials/views/hello-spinner.html- (add http:// in the beginning) (Link- says Spinner is Widget(View)) developer.android.com/guide/topics/ui/layout-objects.html- (add http:// in the beginning) says Spinner is Layout(ViewGroup) So, Spinner is View or ViewGroup? Please update me with your views?

  Read the article

• Can EPD Python and MacPorts Python coexist on OS X (matplotlib)?

  - by bjoern

  I've been using MacPorts Python 2.6 on OS X 10.6. I am considering also installing the Enthought Python Distribution (EPD) on the same machine because it comes preconfigured with matplotlib and other nice data analysis and visualization packages. Can the two Python distributions co-exist peacefully on the same machine? What potential problems will I have to look out for (e.g., environment variables)? I know that building matplotlib through MacPorts is an option, but the process is lengthy (on the order of a full day) and there are open questions about compiling some dependencies on 64bit Intel. I would like to know about the tradeoffs before committing to one of the two approaches.

  Read the article

• Program crash for array copy with ifort

  - by Stefano Borini

  This program crashes with Illegal instruction: 4 on MacOSX Lion and ifort (IFORT) 12.1.0 20111011 program foo real, pointer :: a(:,:), b(:,:) allocate(a(5400, 5400)) allocate(b(5400, 3600)) a=1.0 b(:, 1:3600) = a(:, 1:3600) print *, a print *, b deallocate(a) deallocate(b) end program The same program works with gfortran. I don't see any problem. Any ideas ? Unrolling the copy and performing the explicit loop over the columns works in both compilers. Note that with allocatable instead of pointer I have no problems. The behavior is the same if the statement is either inside a module or not. I confirm the same behavior on Linux using ifort (IFORT) 12.1.3 20120130.

  Read the article

• Running MSBuild script on development machine

  - by devdigital

  Hi, I have an MSBuild script which performs a lot of tasks, as it is run on our build server. I want the script to be run each time a developer builds from Visual Studio on their local development machine, so that a) the build process they are runnning locally is the same as that run by the build server so any problems in the build can be identified immediately by the developer b) many of the operations of the build script are run on local builds, for example running of unit tests, generation of code coverage reports etc How is this possible in Visual Studio (2008)? Note I am running a single solution product with multiple projects.

  Read the article

• What encoding to use for exporting to CSV?

  - by Michael Borgwardt

  I'm developing a java app that exports data to CSV files, intended to be opened in Excel by end users. We just noticed that the export function uses Java's platform default encoding. This causes umlaut characters to be lost and unit test to fail on the build server (which is configured to have US-ASCII as its platform default encoding exactly to catch such potential problems). The question is: which would be the best encoding to use? How does Excel determine what encoding to use? Does it use something platform-specific that presumably matches Java's platform default? I'm currently leaning towards hardcoding Cp1252 - that should cover the target machines (the deployment environment is actually specified) and would fix the test problem. From googling around, Excel does not seem to handle UTF-8 well, so that's out, and sticking to the platform default encoding would require some sort of workaround hack for the tests.

  Read the article

• Weird compatibility problem with .Net 3.5 and 4.0 assemblies (NATUPnPLib)

  - by Juha

  I'm having trouble getting NATUPnP 1.0 Type Library to work with Framework 3.5 in Visual Studio 2010. If I use .Net 4.0, it works just fine, but with .Net 3.5, NATUPNPLib's namespace looks excactly like NETCONLib's. For example this Port Forwarding Management Application sample from this site: http://pietschsoft.com/post/2009/02/05/NET-Framework-Communicate-through-NAT-Router-via-UPnP.aspx ..is using .Net 3.5, but I can't get it to compile in Visual Studio 2010 unless I change it to .Net 4.0. I haven't tried, but I bet in Visual Studio 2008 there would be no problems.

  Read the article

• "Zoom" text to be as big as possible within constraints/box

  - by stolsvik

  First problem: You have 400 pixels width to go on, and need to fit some text within that constraint as large as possible (thus, the text shall use that amount of space). Throw in a new constraint: If the text is just "A", then it shall not zoom this above 100 pixels (or some specific font size). Then, a final situation: Linebreaks. Fit some text in the largest possible way within e.g. 400 x 150 pixels. An obvious way is to simply start with point 1, and then increase until you can't fit it anymore. This would work for all three problems, but would be very crude. The fitting of a single line within bounds could be done by writing it with some fixed point size, check the resulting pixel bounds of the text, and then simply scale it with a transform (the text scales properly too then, check out TransformUI). Any ideas of other ways to attack this would be greatly appreciated!

  Read the article

• mCrypt not present after Ubuntu upgrade to 13.10

  - by VukBG

  After I have upgraded my system from Ubuntu 13.04 to 13.10 several problems have occurred with apache, mysql and php configurations. I solved most of them but I can't seem to get mCrypt library working. Package is installed so i don't need to apt-get it. Server works and everything seems fine, but when I try to run php artisan serve with Laravel 4, I get a message that mCrypt is required. I did php --ri mcrypt and the output was Extension 'mcrypt' not present. I have tried putting extension=mcrypt.so to /etc/php5/apache2/php.ini but it didn't worked. Any ideas?

  Read the article

• UDF function with library dependencies on MySQL 5.1

  - by Fredrik

  I'm having a problem with a MySQL UDF function (mychem.sourceforge.net) that's dependent on a large library (openbabel.org) which is in turn plugin based. The problem is that the format plugins to openbabel doesn't seem to load in MySQL 5.1 and I suspect it might be due to the plugin_dir setting. I have set plugin_dir to /usr/lib/ which is the location for both libmychem.so and libopenbabel.so as well as the directory openbabel that contains the format plugins. Is there a way to turn off the plugin_dir restriction in MySQL (preferably without compiling MySQL from sources) so that I can test this hypothesis or do you have a different idea on what might cause the problem? All this is done on Ubuntu 10.04 (but I had the same kind of problems on 8.04, where I managed to get it working after a lot of steps that I unfortunately have forgotten...) I have turned off apparmor during testing and it doesn't help either.

  Read the article

• Is everyone baking the same CI cake?

  - by Brett Rigby

  I can't help but wonder about this whole Continous Integration process and wanted to know what you think about it all. From my perspective, we're constructing our own 'flavour' of NAnt/Ivy/CruiseControl.Net in-house and can't help but get the feeling that other dev shops are doing exactly the same work, but then everybody is finding out the same problems and pitfalls with it. I'm not complaining about NAnt, Ivy or CruiseControl at all, as they've been brilliant in helping our team of developers become more sure of the quality of their code, but it just seems strange that these tools are very popular, yet we're all re-inventing the CI-wheel. Is there a pre-made solution for building .Net applications, using the tools mentioned above, and if so, why aren't we all using them??

  Read the article

• Can I send a ESC d command to a POS printer from perl?

  - by Bradleyb

  I have a Star TSP100 printer and I'm having few problems with it really. My problem is that I'm not as familiar with programming as I should be - but I'm learning! The programmers reference for the Star printer says that if I send a ESC d to the printer - that will activate the built-in cutter - which I would like to do very much. My problem is that I have no idea how to send an escape code like that from within PERL - if it's even possible. I really appreciate any advice on this one.

  Read the article

• Fastest implementation of the frac function in C#

  - by user349937

  I would like to implement a frac function in C# (just like the one in hsl here http://msdn.microsoft.com/en-us/library/bb509603%28VS.85%29.aspx) but since it is for a very processor intensive application i would like the best version possible. I was using something like public float Frac(float value) { return value - (float)Math.Truncate(value); } but I'm having precision problems, for example for 2.6f it's returning in the unit test Expected: 0.600000024f But was: 0.599999905f I know that I can convert to decimal the value and then at the end convert to float to obtain the correct result something like this: public float Frac(float value) { return (float)((decimal)value - Decimal.Truncate((decimal)value)); } But I wonder if there is a better way without resorting to decimals...

  Read the article

• <function> referenced from; symbol(s) not found.

  - by jfm429

  I have a piece of C code that is used from a C++ function. At the top of my C++ file I have the line: #include "prediction.h" In prediction.h I have this: #ifndef prediction #define prediction #include "structs.h" typedef struct { double estimation; double variance; } response; response runPrediction(int obs, location* positions, double* observations, int targets, location* targetPositions); #endif I also have prediction.c, which has: #include "prediction.h" response runPrediction(int obs, location* positions, double* observations, int targets, location* targetPositions) { // code here } Now, in my C++ file (which as I said includes prediction.h) I call that function, then compile (through Xcode) I get this error: "runPrediction(int, location*, double*, int, location*)", referenced from: mainFrame::respondTo(char*, int)in mainFrame.o ld: symbol(s) not found collect2: ld returned 1 exit status prediction.c is marked for compilation for the current target. I don't have any problems with other .cpp files not being compiled. Any thoughts here?

  Read the article

• Installing WindowBuilder on Eclipse 4.2

  - by WChargin

  I'm using Eclipse Juno 4.2, downloaded from here. On previous installs, I've been using 3.7, and I've been using WindowBuilder, which I find very useful. I noticed it wasn't included this time, so I used this update site provided on this page (the zip file download gives a "file unavailable" error). However, when I run the install, it rapidly climbs to 28%, then freezes. After half an hour, I get a very long error that start with this: An error occurred while collecting items to be installed session context was:(profile=epp.package.java, phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=, action=). Multiple problems occurred while downloading. Unable to read repository at http://download.eclipse.org/windowbuilder/WB/integration/4.2/plugins/org.eclipse.wb.core_1.5.0.r42x201205291332.jar.pack.gz. (full text) Does anyone know how I can go about installing it?

  Read the article

• fancybox encoding issue

  - by Noam Smadja

  i am using fancybox.net for my light boxes. it works great with images. but when i use iframe option i am having problems with encoding. i use hebrew and english and russian on my website. when i use UTF-8 on the iframe page i get squares instead of hebrew letters. when i change to iso-8859-8 i have hebrew but inverted, and russian goes: ??????????? any idea? my website is UTF-8 and every thing works great.. except fancybox :(

  Read the article

• Is there a way to dynamically define how an image appear in a page or in certain layout?

  - by Starx

  For so many time, I have encountered problems with managing image having abnormally long height or width. If I fixed their height and widht, they will appear streched? If I fixed their width, and if the height of the image is very long then also it will mess up the overall website. If I fixed their height, and if the width of the image is very long then also it will mess up the overall website. The images I save in the local drive are saved maintaining the ratio? Let say user decides to upload image 1(height)*32(width). When he uploads this image, the script is made to resize the user uploaded image to height:1000px(just an example) So the resulting image in 1000px(height)*32000(widht), you see now the image is abnormally large. Now while displaying this image in a box of 1000px * 1000px, what is the best way to display this image?

  Read the article

• Wordpress database query running slow - one of the columns doesn't exist!

  - by Pavel

  Hi there. I'm having some problems with the query that wordpress runs. That's the one: SELECT DISTINCT ID,post_title,post_date,post_content,MATCH(post_title,post_content) AGAINST ('S') AS score FROM wp_posts WHERE MATCH (post_title,post_content) AGAINST ('S') AND post_date <= 'S' AND post_status = 'S' AND id != N AND post_type = 'S' ORDER BY score DESC When I'm running this query in phpmyadmin it says that N column doesn't exist so clause "AND id != N" si not making any sense. I ran the query again without this clause and db behaved like fully optimized one. Please can someone give me a hint on that? My questions are: What this clause is used for? What wordpress is trying to find by running this and Can I modify core wordpress files to get rid of this clause? Any response or help greatly appreciated!!

  Read the article

• Designing a peer to peer network

  - by Varun

  I am designing a simple peer to peer network. The basic architecture will be as follows: A central server- that keeps track of all the peers. The job of this server is to keep track of all the peers that join the network. Every peer could do things: a. Download a file from it's peer b. Push a file (send a file) to it's peer. Could anybody please tell me what would be the best design for such a system? What would be the problems that i might run into and so on. I am planning to use Java as the programming language to implement. Would it be a good choice? Also, is it necessary that i would need a Linux box to develop the system? or is it fine if i use a Windows machine? Your help will be much appreciated! Thanks!

  Read the article

• IIS5, ASP.NET (3.5) Application and Visual Studio 2008

  - by Lakeshore

  I have a solution that was developed in VS 2008 that is configured to use IIS. I configure the Virtual directory in IIS the same way I have with other working solutions using IIS. When I either build and run the solution in VS 2008 or browse the virtual directory using IIS, I get the following error message. Internet Explorer cannot display the webpage What you can try: It appears you are not connected to the Internet, but you might want to try to reconnect to the Internet Retype the address Go back to the previous page. Most likely causes: You are not connected to the Internet The website is encountering problems There might be a typing error in the address. Why might this be?

  Read the article

• c# GUI changing a listbox from another class

  - by SlowForce

  I've written a multithreaded server that uses tcplistener and a client handler class that controls input and output. I also have a GUI chat client. The chat client works fine and the console version of the server also works well. I have a start() method in the partial(?) Form class, which I run from a new thread when I click a button, that starts the TCP Listener and loops through and accepts socket requests. For every request a new ClientHandler object is created and the socket is passed to this object before being used in a new handler thread. The ClientHandler is a different class to the form and I'm having real problems writing data to the Listbox in the Form class from within the ClientHandler class. I've tried a few different ways of doing this but none of them work as they involve creating a new form class within the ClientHandler. Any help or advice on what I should be reading to help me would be really appreciated.

  Read the article

• Rounded corners on Divs. Problem with Internet Explorer only!

  - by decbrad

  Has anybody experienced any problems with creating rounded corners on Divs? I am using the jQuery plugin from http://jquery.malsup.com/corner/ The problem is that the top corners are not rounding in Internet Explorer. Works fine with Firefox! Anybody got any advice? Here's my code: <script type="text/javascript"> $(document).ready(function() { $("#panel").corner("10px"); }); </script> Here's the div that gets rounded: <div ID="panel">test</div>

  Read the article

< Previous Page | 384 385 386 387 388 389 390 391 392 393 394 395  | Next Page >