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• Using sub-repo with hgwebdir difficulties in mercurial

  - by Ton

  Allright I got myself in a deadlock with Mercurial and sub-repos... Here's what happenend: I had a large mercurial repo that I server via apache and hgweb.cgi. Due to the size of the repo I decided to move to sub-repositories and share these with hgwebdir.cgi. Using the convert tool with the filemap option I created several sub-repositories: /main/foo /main/bar Nicely created an entry for the sub-repositories in .hgsub: foo = foo bar = bar And set hgwebdir.cgi up to show $/** as the root folder. Now when I went to my site (foo.com/hg) I saw my sub-repositories with one empty reposory among them (no name, no content), but I could not download it (archive location unknown): That was allright until I added a new sub-repository. I could not push the new .hgsub file to foo.com/hg, since that page is served by hgwebdir. The only method I can work currently is switch from hgwebdir to hgweb, commit .hgsubste and switch back to hgwebdir. Does someone have a good setup for such a mess?

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• Creating Python C module from Fortran sources on Ubuntu 10.04 LTS

  - by Botondus

  In a project I work on we use a Python C module compiled from Fortran with f2py. I've had no issues building it on Windows 7 32bit (using mingw32) and on the servers it's built on 32bit Linux. But I've recently installed Ubuntu 10.04 LTS 64bit on my laptop that I use for development, and when I build it I get a lot of warnings (even though I've apparently installed all gcc/fortran libraries/compilers), but it does finish the build. However when I try to use the built module in the application, most of it seems to run well but then it crashes with an error: * glibc detected /home/botondus/Envs/gasit/bin/python: free(): invalid next size (fast): 0x0000000006a44760 ** Warnings on running *f2py -c -m module_name ./fortran/source.f90* customize UnixCCompiler customize UnixCCompiler using build_ext customize GnuFCompiler Could not locate executable g77 Found executable /usr/bin/f77 gnu: no Fortran 90 compiler found gnu: no Fortran 90 compiler found customize IntelFCompiler Could not locate executable ifort Could not locate executable ifc customize LaheyFCompiler Could not locate executable lf95 customize PGroupFCompiler Could not locate executable pgf90 Could not locate executable pgf77 customize AbsoftFCompiler Could not locate executable f90 absoft: no Fortran 90 compiler found absoft: no Fortran 90 compiler found absoft: no Fortran 90 compiler found absoft: no Fortran 90 compiler found absoft: no Fortran 90 compiler found absoft: no Fortran 90 compiler found customize NAGFCompiler Found executable /usr/bin/f95 customize VastFCompiler customize GnuFCompiler gnu: no Fortran 90 compiler found gnu: no Fortran 90 compiler found customize CompaqFCompiler Could not locate executable fort customize IntelItaniumFCompiler Could not locate executable efort Could not locate executable efc customize IntelEM64TFCompiler customize Gnu95FCompiler Found executable /usr/bin/gfortran customize Gnu95FCompiler customize Gnu95FCompiler using build_ext I have tried building a 32bit version by installing the gfortran multilib packages and running f2py with -m32 option (but with no success): f2py -c -m module_name ./fortran/source.f90 --f77flags="-m32" --f90flags="-m32" Any suggestions on what I could try to either build 32bit version or correctly build the 64bit version? Edit: It looks like it crashes right at the end of a subroutine. The 'write' executes fine... which is strange. write(6,*)'Eh=',Eh end subroutine calcolo_involucro The full backtrace is very long and I'm not sure if it's any help, but here it is: *** glibc detected *** /home/botondus/Envs/gasit/bin/python: free(): invalid next size (fast): 0x0000000007884690 *** ======= Backtrace: ========= /lib/libc.so.6(+0x775b6)[0x7fe24f8f05b6] /lib/libc.so.6(cfree+0x73)[0x7fe24f8f6e53] /usr/local/lib/python2.6/dist-packages/numpy/core/multiarray.so(+0x4183c)[0x7fe24a18183c] /home/botondus/Envs/gasit/bin/python[0x46a50d] /usr/local/lib/python2.6/dist-packages/numpy/core/multiarray.so(+0x4fbd8)[0x7fe24a18fbd8] /usr/local/lib/python2.6/dist-packages/numpy/core/multiarray.so(+0x5aded)[0x7fe24a19aded] /home/botondus/Envs/gasit/bin/python(PyEval_EvalFrameEx+0x516e)[0x4a7c5e] /home/botondus/Envs/gasit/bin/python(PyEval_EvalFrameEx+0x5a60)[0x4a8550] /home/botondus/Envs/gasit/bin/python(PyEval_EvalCodeEx+0x911)[0x4a9671] /home/botondus/Envs/gasit/bin/python[0x537620] /home/botondus/Envs/gasit/bin/python(PyObject_Call+0x47)[0x41f0c7] /home/botondus/Envs/gasit/bin/python[0x427dff] /home/botondus/Envs/gasit/bin/python(PyObject_Call+0x47)[0x41f0c7] /home/botondus/Envs/gasit/bin/python[0x477bff] /home/botondus/Envs/gasit/bin/python[0x46f47f] /home/botondus/Envs/gasit/bin/python(PyObject_Call+0x47)[0x41f0c7] /home/botondus/Envs/gasit/bin/python(PyEval_EvalFrameEx+0x4888)[0x4a7378] /home/botondus/Envs/gasit/bin/python(PyEval_EvalCodeEx+0x911)[0x4a9671] /home/botondus/Envs/gasit/bin/python(PyEval_EvalFrameEx+0x4d19)[0x4a7809] /home/botondus/Envs/gasit/bin/python(PyEval_EvalCodeEx+0x911)[0x4a9671] /home/botondus/Envs/gasit/bin/python(PyEval_EvalFrameEx+0x4d19)[0x4a7809] /home/botondus/Envs/gasit/bin/python(PyEval_EvalCodeEx+0x911)[0x4a9671] /home/botondus/Envs/gasit/bin/python[0x537620] /home/botondus/Envs/gasit/bin/python(PyObject_Call+0x47)[0x41f0c7] /home/botondus/Envs/gasit/bin/python(PyEval_CallObjectWithKeywords+0x43)[0x4a1b03] /usr/local/lib/python2.6/dist-packages/numpy/core/multiarray.so(+0x2ee94)[0x7fe24a16ee94] /home/botondus/Envs/gasit/bin/python(_PyObject_Str+0x61)[0x454a81] /home/botondus/Envs/gasit/bin/python(PyObject_Str+0xa)[0x454b3a] /home/botondus/Envs/gasit/bin/python[0x461ad3] /home/botondus/Envs/gasit/bin/python[0x46f3b3] /home/botondus/Envs/gasit/bin/python(PyObject_Call+0x47)[0x41f0c7] /home/botondus/Envs/gasit/bin/python(PyEval_EvalFrameEx+0x4888)[0x4a7378] /home/botondus/Envs/gasit/bin/python(PyEval_EvalCodeEx+0x911)[0x4a9671] /home/botondus/Envs/gasit/bin/python(PyEval_EvalFrameEx+0x4d19)[0x4a7809] /home/botondus/Envs/gasit/bin/python(PyEval_EvalFrameEx+0x5a60)[0x4a8550] ======= Memory map: ======== 00400000-0061c000 r-xp 00000000 08:05 399145 /home/botondus/Envs/gasit/bin/python 0081b000-0081c000 r--p 0021b000 08:05 399145 /home/botondus/Envs/gasit/bin/python 0081c000-0087e000 rw-p 0021c000 08:05 399145 /home/botondus/Envs/gasit/bin/python 0087e000-0088d000 rw-p 00000000 00:00 0 01877000-07a83000 rw-p 00000000 00:00 0 [heap] 7fe240000000-7fe240021000 rw-p 00000000 00:00 0 7fe240021000-7fe244000000 ---p 00000000 00:00 0 7fe247631000-7fe2476b1000 r-xp 00000000 08:03 140646 /usr/lib/libfreetype.so.6.3.22 7fe2476b1000-7fe2478b1000 ---p 00080000 08:03 140646 /usr/lib/libfreetype.so.6.3.22 7fe2478b1000-7fe2478b6000 r--p 00080000 08:03 140646 /usr/lib/libfreetype.so.6.3.22 7fe2478b6000-7fe2478b7000 rw-p 00085000 08:03 140646 /usr/lib/libfreetype.so.6.3.22 7fe2478b7000-7fe2478bb000 r-xp 00000000 08:03 263882 /usr/lib/python2.6/dist-packages/PIL/_imagingft.so 7fe2478bb000-7fe247aba000 ---p 00004000 08:03 263882 /usr/lib/python2.6/dist-packages/PIL/_imagingft.so 7fe247aba000-7fe247abb000 r--p 00003000 08:03 263882 /usr/lib/python2.6/dist-packages/PIL/_imagingft.so 7fe247abb000-7fe247abc000 rw-p 00004000 08:03 263882 /usr/lib/python2.6/dist-packages/PIL/_imagingft.so 7fe247abc000-7fe247abf000 r-xp 00000000 08:03 266773 /usr/lib/python2.6/lib-dynload/_bytesio.so 7fe247abf000-7fe247cbf000 ---p 00003000 08:03 266773 /usr/lib/python2.6/lib-dynload/_bytesio.so 7fe247cbf000-7fe247cc0000 r--p 00003000 08:03 266773 /usr/lib/python2.6/lib-dynload/_bytesio.so 7fe247cc0000-7fe247cc1000 rw-p 00004000 08:03 266773 /usr/lib/python2.6/lib-dynload/_bytesio.so 7fe247cc1000-7fe247cc5000 r-xp 00000000 08:03 266786 /usr/lib/python2.6/lib-dynload/_fileio.so 7fe247cc5000-7fe247ec4000 ---p 00004000 08:03 266786 /usr/lib/python2.6/lib-dynload/_fileio.so 7fe247ec4000-7fe247ec5000 r--p 00003000 08:03 266786 /usr/lib/python2.6/lib-dynload/_fileio.so 7fe247ec5000-7fe247ec6000 rw-p 00004000 08:03 266786 /usr/lib/python2.6/lib-dynload/_fileio.so 7fe247ec6000-7fe24800c000 r-xp 00000000 08:03 141358 /usr/lib/libxml2.so.2.7.6 7fe24800c000-7fe24820b000 ---p 00146000 08:03 141358 /usr/lib/libxml2.so.2.7.6 7fe24820b000-7fe248213000 r--p 00145000 08:03 141358 /usr/lib/libxml2.so.2.7.6 7fe248213000-7fe248215000 rw-p 0014d000 08:03 141358 /usr/lib/libxml2.so.2.7.6 7fe248215000-7fe248216000 rw-p 00000000 00:00 0 7fe248216000-7fe248229000 r-xp 00000000 08:03 140632 /usr/lib/libexslt.so.0.8.15 7fe248229000-7fe248428000 ---p 00013000 08:03 140632 /usr/lib/libexslt.so.0.8.15 7fe248428000-7fe248429000 r--p 00012000 08:03 140632 /usr/lib/libexslt.so.0.8.15 7fe248429000-7fe24842a000 rw-p 00013000 08:03 140632 /usr/lib/libexslt.so.0.8.15 7fe24842a000-7fe248464000 r-xp 00000000 08:03 141360 /usr/lib/libxslt.so.1.1.26 7fe248464000-7fe248663000 ---p 0003a000 08:03 141360 /usr/lib/libxslt.so.1.1.26 7fe248663000-7fe248664000 r--p 00039000 08:03 141360 /usr/lib/libxslt.so.1.1.26 7fe248664000-7fe248665000 rw-p 0003a000 08:03 141360 /usr/lib/libxslt.so.1.1.26 7fe248665000-7fe24876e000 r-xp 00000000 08:03 534240 /usr/local/lib/python2.6/dist-packages/lxml/etree.so 7fe24876e000-7fe24896d000 ---p 00109000 08:03 534240 /usr/local/lib/python2.6/dist-packages/lxml/etree.so 7fe24896d000-7fe24896e000 r--p 00108000 08:03 534240 /usr/local/lib/python2.6/dist-packages/lxml/etree.so 7fe24896e000-7fe248999000 rw-p 00109000 08:03 534240 /usr/local/lib/python2.6/dist-packages/lxml/etree.so 7fe248999000-7fe2489a7000 rw-p 00000000 00:00 0 7fe2489a7000-7fe2489bd000 r-xp 00000000 08:03 132934 /lib/libgcc_s.so.1

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• * css hack no longer working in ie8?

  - by Haroldo

  Ok so i want to make my border css only applicable to ie8 or earlier (as in not ie9 when it comes out). purpose: so that in ie, the missing dropshadow will be replaced with a border: the * hack doesnt seem to be working? im testing in ie8 locally... input, textarea{ display:block; border:none; *border: 1px solid #000; -moz-box-shadow: 0px 0px 1px 1px #999; -webkit-box-shadow: 0px 0px 1px 1px #999; box-shadow: 0px 0px 1px 1px #999; -moz-border-radius: 2px; -webkit-border-radius: 2px; margin: 1px 0px 10px 0px; font-size:12px; color:#494949; }

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• How to add handler in dynamic datatemplate

  - by Phillip Ngan

  I am successfully declaring a data template in a code behind as follows: private static DataTemplate CreateTemplate(string sortMemberPath, HorizontalAlignment horzAlignment) { const string xamlFormat = "<DataTemplate xmlns=\"http://schemas.microsoft.com/winfx/2006/xaml/presentation\" >" + "<StackPanel > " + " <TextBlock Margin=\"2,0\" VerticalAlignment=\"Center\" HorizontalAlignment=\"_HALIGNMENT_\" " + " Text=\"hello there\"> " + " </TextBlock> " + "</StackPanel>" + "</DataTemplate>"; return (DataTemplate) XamlReader.Load(xamlReturned); } But now I want to add a size changed handler by changing the line: + "<StackPanel > " to + "<StackPanel SizeChanged="SizeChangedHandler" > " I have the method "SizeChangedHandler" declared in the code behind. This results in a xaml parse error when the control attempts to load at runtime. I suspect that it can't find the handler "SizeChangedHandler". How can I specify this handler so that the xaml parser is happy.

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• Java Regular Expressions

  - by david robers

  Hi All, Im struggling to understand the regex documentation. How would I find the strings that contain exactly one C in the following text: ABCCAMNL YOOBABCCA XNABCCA ZDXUABCCA TAQABCC ISABCCA REABCCA CABCAMONPT Edit: private void matchIt(String regex, ArrayList<String> d) { Pattern p = Pattern.compile("[\\w^C]"); Matcher m = p.matcher(regex); for (int i = 0; i < d.size(); i++) { p.matcher(d.get(i)); if(m.find()){ out.println(d.get(i)); } } } i have the above function and it only outputs: ABCCAMNL YOOBABCCA Why is that?

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• Android: Image displayed at Webview from Url with high quality loss

  - by Merlino

  I want to display an image from an url with an Webview at Android. With Android phones with Version 1.5 and 1.6 there is no problem. but the same pic and the same code on an AndroidPhone with Version 2.0 and the pic is totaly pixelated. Like Android is resizing the image first to a smaller one and then resizing it back to "normal" size. Unfortunately its important to display the pic without any quality loss. I tried to integrate it in the sourcefolder to show it as an normal image, but at Android 2.0 i get an exception because the image is to big. (At Android 1.6 there is no problem) Any ideas how i can display the image without quality loss with Android 2.0 ?

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• Help with C++ Boost::regex

  - by Youssef

  Hello everybody, I'm trying to get all words inside a string using Boost::regex in C++. Here's my input : "Hello there | network - bla bla hoho" using this code : regex rgx("[a-z]+",boost::regex::perl|boost::regex::icase); regex_search(input, result, rgx); for(unsigned int j=0; j I only get the first word "Hello".. whats wrong with my code ? result.size() returns 1. thank you.

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• java: List wrapper where get()/set() is allowed but add/remove is not

  - by Jason S

  I need to wrap a List<T> with some class that allows calls to set/get but does not allow add/remove calls, so that the list remains "stuck" at a fixed length. I think I have a thin wrapper class (below) that will work, but I'm not 100% positive. Did I miss anything obvious? import java.util.Collection; import java.util.Iterator; import java.util.List; import java.util.ListIterator; class RestrictedListWrapper<T> implements List<T> { static <T> T fail() throws UnsupportedOperationException { throw new UnsupportedOperationException(); } static private class IteratorWrapper<T> implements ListIterator<T> { final private ListIterator<T> iter; private IteratorWrapper(ListIterator<T> iter) { this.iter = iter; } static public <T> RestrictedListWrapper.IteratorWrapper<T> wrap(ListIterator<T> target) { return new RestrictedListWrapper.IteratorWrapper<T>(target); } @Override public void add(T e) { fail(); } @Override public boolean hasNext() { return this.iter.hasNext(); } @Override public boolean hasPrevious() { return this.iter.hasPrevious(); } @Override public T next() { return this.iter.next(); } @Override public int nextIndex() { return this.iter.nextIndex(); } @Override public T previous() { return this.iter.previous(); } @Override public int previousIndex() { return this.iter.previousIndex(); } @Override public void remove() { fail(); } @Override public void set(T e) { this.iter.set(e); } } final private List<T> list; private RestrictedListWrapper(List<T> list) { this.list = list; } static public <T> RestrictedListWrapper<T> wrap(List<T> target) { return new RestrictedListWrapper<T>(target); } @Override public boolean add(T arg0) { return fail(); } @Override public void add(int index, T element) { fail(); } @Override public boolean addAll(Collection<? extends T> arg0) { return fail(); } @Override public boolean addAll(int arg0, Collection<? extends T> arg1) { return fail(); } /** * clear() allows setting all members of the list to null */ @Override public void clear() { ListIterator<T> it = this.list.listIterator(); while (it.hasNext()) { it.set(null); it.next(); } } @Override public boolean contains(Object o) { return this.list.contains(o); } @Override public boolean containsAll(Collection<?> c) { return this.list.containsAll(c); } @Override public T get(int index) { return this.list.get(index); } @Override public int indexOf(Object o) { return this.list.indexOf(o); } @Override public boolean isEmpty() { return false; } @Override public Iterator<T> iterator() { return listIterator(); } @Override public int lastIndexOf(Object o) { return this.list.lastIndexOf(o); } @Override public ListIterator<T> listIterator() { return IteratorWrapper.wrap(this.list.listIterator()); } @Override public ListIterator<T> listIterator(int index) { return IteratorWrapper.wrap(this.list.listIterator(index)); } @Override public boolean remove(Object o) { return fail(); } @Override public T remove(int index) { fail(); return fail(); } @Override public boolean removeAll(Collection<?> c) { return fail(); } @Override public boolean retainAll(Collection<?> c) { return fail(); } @Override public T set(int index, T element) { return this.list.set(index, element); } @Override public int size() { return this.list.size(); } @Override public List<T> subList(int fromIndex, int toIndex) { return new RestrictedListWrapper<T>(this.list.subList(fromIndex, toIndex)); } @Override public Object[] toArray() { return this.list.toArray(); } @Override public <T> T[] toArray(T[] a) { return this.list.toArray(a); } }

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• Javascript: how to document.print option value in Select block?

  - by HH

  The below returns [object HTMLOptionElement] while I try to return the value. document.write(document.getElementById("allSelect").options[0]).value; by value, I mean the thing called value there (there is a form around it but not relevant now): <select name="allSelect" id="allSelect" size=3> <option value="1"selected">1</option> <option value="2">2</option> <option value="3">3</option> </select> How can I return the value of an option?

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• Entity Framework - Why does EF use LEFT OUTER JOIN's in a 1-to-1 join?

  - by Taylor L

  Why does .NET Entity Framework produce SQL that uses a subquery and left outer join on a simple 1-to-1 relationship? I expected to see a simple join on the two tables. I'm using Devart Dotconnect for Oracle. Any ideas? Below is the output I see courtesy of the EFTracingProvider: SELECT 1 AS C1, "Join1".USER_ID1 AS USER_ID, ... FROM "MY$NAMESPACE".MYTABLE1 "Extent1" INNER JOIN (... FROM "MY$NAMESPACE".MYTABLE2 "Extent2" LEFT OUTER JOIN "MY$NAMESPACE".MYTABLE1 "Extent3" ON "Extent2".OTHER_ID = "Extent3".OTHER_ID ) "Join1" ON "Extent1".OTHER_ID = "Join1".OTHER_ID1 WHERE "Extent1".USER_ID = :EntityKeyValue1 -- EntityKeyValue1 (dbtype=String, size=6, direction=Input) = "000000"

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• ORA-22835 using JPA (Buffer too small)

  - by Kenneth

  I am trying to persist an Entity with a @Lob annotated String field. The content of that fiels if bigger than the 40k buffer size limit. The first problem I had was related to the setString method used internally by the JPA implementation (Hibernate in my case) and the Oracle JDBC Driver. This problem was solved adding <property name="hibernate.connection.SetBigStringTryClob" value="true"/> to my persistence.xml file. Then, the error changed to a ORA-22835 error (the buffer is too small). ¿Is there any way that JPA solves this problem without going to a low-level implementation? ¿Any suggestions?

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• reading a BYTE as a DWORD in Masm

  - by Help I'm in college

  Hi, once again I'm doing MASM programming. I'm trying to write a procedure using the Irvine32 library where the user enters a string which is put into an array of BYTEs with ReadString. Then it loops over that arrray and determines if each character is a number. However, when I try cmp [buffer + ecx], 30h MASM complains about comparing two things that are not the same size. Is there anyway I could read the ASCII code in each BYTE in the array as a DWORD (or otherwise extract the ASCII value in each BYTE)?

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• Unexpected behavior with AudioQueueServices callback while recording audio

  - by rcw3

  I'm recording a continuous stream of data using AudioQueueServices. It is my understanding that the callback will only be called when the buffer fills with data. In practice, the first callback has a full buffer, the 2nd callback is 3/4 full, the 3rd callback is full, the 4th is 3/4 full, and so on. These buffers are 8000 packets (recording 8khz audio) - so I should be getting back 1s of audio to the callback each time. I've confirmed that my audio queue buffer size is correct (and is somewhat confirmed by the behavior). What am I doing wrong? Should I be doing something in the AudioQueueNewInput with a different RunLoop? I tried but this didn't seem to make a difference... By the way, if I run in the debugger, each callback is full with 8000 samples - making me think this is a threading / timing thing.

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• Android app (with felix) crashes with LinearAlloc exceeded capacity

  - by user1106000

  I am running apache felix and an osgi app on android (3.2). This works pretty well so far, but I have rather large chunks of data to load into the application (osgi bundles). The problem with that is that when I load the biggest chunk of data I get LinearAlloc exceeded capacity The error seems to come from LinearAlloc.c \#define DEFAULT_MAX_LENGTH (4*1024*1024) if (nextOffset > pHdr->mapLength) { /* * We don't have to abort here. We could fall back on the system * malloc(), and have our "free" call figure out what to do. Only * works if the users of these functions actually free everything * they allocate. */ LOGE("LinearAlloc exceeded capacity, last=%d\n", (int) size); dvmAbort(); } afaik in 3.2/4.x it is even 8*1024*1024, but I still hit that limit. I'm looking to get better insight on what causes this problem and how I might possibly be able to fix it. Any help would be appreciated.

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• Wrapping variable width text in emacs lisp

  - by Jonathan Arkell

  I am hacking up a tagging application for emacs. I have got a tag cloud/weighted list successfully displaying on a buffer, but i am running into a snag. I need to be able to properly word-wrap the buffer, but I haven't a clue where to start. The font I am using is a variable width font. On top of that, each tag is going to be in a different size, depending on how many times it shows up on the buffer. Finally, the window that displays the tagcloud could be in a window that is 200 pixels wide, or the full screen width. I really have no idea where to start. I tried longlines mode on the tagcloud buffer, but that didn't work. Source code is at: http://emacswiki.org/cgi-bin/emacs/free-tagging.el

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• how to build an accumulator array in matlab

  - by schwiz

  I'm very new to matlab so sorry if this is a dumb question. I have to following matrices: im = imread('image.jpg'); %<370x366 double> [y,x] = find(im); %x & y both <1280x1 double> theta; %<370x366 double> computed from gradient of image I can currently plot points one at a time like this: plot(x(502) + 120*cos(theta(y(502),x(502))),y(502) + 120*sin(theta(y(502),x(502))),'*b'); But what I want to do is some how increment an accumulator array, something like this: acc = zeros(size(im)); acc(y,x) = acc(x + 120*cos(theta(y,x)),y + 120*sin(theta(y,x)),'*b')) + 1; It would be nice if the 120 could actually be another matrix containing different radius values as well.

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• Which Android phone to use for development...?

  - by Nikos

  Hi, I'm planning to port a couple of games from iPhone/Windows Mobile to the Android platform. The games are written in C++ so I plan to use the NDK with a thin java wrapper. I'm new to the Android platform and need some advice on which phone to buy for development. I suspect like Windows Mobile there is a level of fragmentation with different phones supporting different features (keyboard/ rotation/ screen size/ capacitive touch screen/ etc). What are the best device(s) for development on the Android platform...? They also have to be available in the UK/Europe. Thank you in advance. Nikos.

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• Sparse O(1) array with indices being consecutive products

  - by Kos

  Hello, I'd like to pre-calculate an array of values of some unary function f. I know that I'll only need the values for f(x) where x is of the form of a*b, where both a and b are integers in range 0..N. The obvious time-optimized choice is just to make an array of size N*N and just pre-calculate just the elements which I'm going to read later. For f(a*b), I'd just check and set tab[a*b]. This is the fastest method possible - however, this is going to take a lot of space as there are lots of indices in this array (starting with N+1) which will never by touched. Another solution is to make a simple tree map... but this slows down the lookup itself very heavily by introducing lots of branches. No. I wonder - is there any solution to make such an array less sparse and smaller, but still quick branchless O(1) in lookup?

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• How can I differentiate between smart phones and others?

  - by Denis Hoctor

  Hi all, I'm looking to revamp our mobile site with something simple for phones below the ambiguous smart phone category and something a little more interesting for the phones above this category. I'm not interested in WAP/WML for this project. I'm building a ASP.Net 4 MCV 2 app and using MBDF What I'd like to know is how best to define this differentiation when using MBDF? Screen size, Javascript, SpportsTouchScreen etc. are all in MBDF along with others but I'm not sure where to draw the line and where the data is most accurate for the broad number of devices. What do those of you out there developing for this spread of hardware & software split on? Thanks, Denis P.S. I've done my research on xHTML MP1.0 - 1.2 and the best practises for implementation to ensure broad coverage but I don't want to restrict the newer phones out there to what the base line can see.

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• How do I shrink my SQL Server Database?

  - by Rory Becker

  I have a Database nearly 1.9Gb Database in size MSDE2000 does not allow DBs that exceed 2.0Gb I need to shrink this DB (and many like it at various client locations) I have found and deleted many 100's of 1000's of records which are considered unneeded. these records account for a large percentage of some of the main (largest) tables in the Database. Therefore it's reasonable to assume much space should now be retrievable. So now I need to shrink the DB to account for the missing records I execute "DBCC ShrinkDatabase('MyDB')"......No effect. I have tried the various shrink facilities provided in MSSMS.... Still no effect. I have backed up the database and restored it... Still no effect. Still 1.9Gb Why? Whatever procedure I eventually find needs to be replayable on a client machine with access to nothing other than OSql or similar.

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• Comparing (similar) images with Python/PIL

  - by Attila Oláh

  I'm trying to calculate the similarity (read: Levenshtein distance) of two images, using Python 2.6 and PIL. I plan to use the python-levenshtein library for fast comparison. Main question: What is a good strategy for comparing images? My idea is something like: Convert to RGB (transparent - white) (or maybe convert to monochrome?) Scale up the smaller one to the larger one's size Convert each channel (= the only channel, if converted to monochrome) to a sequence (item value = color value of the pixel) Calculate the Levenshtein distance between the two sequences Of course, this will not handle cases like mirrored images, cropped images, etc. But for basic comparison, this should be useful. Is there a better strategy documented somewhere?

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• Always importing too many classes... I think!

  - by Bill

  I have a basic problem with knowing which classes to import for a given application, renderer, AS package, mxml component, etc. There seems to be hundreds of classes (both mx and flash) and I'm never sure which one(s) to import... so I just keep adding import statements until the errors go away. Is there a reference somewhere that I don't know about? Or does this just come with experience? Also... does importing a load of classes actually make the file size larger or does Flex only import the classes used nregardless of what I specify? If it only uses what is needed, why wouldn't everyone just do: import mx.*;

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• Optimize SQL databases by adding index columns

  - by Viktor Sehr

  This might be implementation specific so the question regards how SQL databases is generally implemented. Say I have a database looking like this; Product with columns [ProductName] [Price] [Misc] [Etc] Order with columns [OrderID] [ProductName] [Quantity] [Misc] [Etc] ProductName is primary key of Product, of some string type and unique. OrderID is primary key and of some integer type, and ProductName being a foreign key. Say I change the primary key of Product to a new column of integer type ie [ProductID] Would this reduce the database size and optimize lookups joining these two tables (and likewise operations), or are these optimizations performed automatically by (most/general/main) SQL database implementations?

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• XML Table layout? Two EQUAL-width rows filled with equally width buttons??

  - by Oliver Goossens

  Hi heres a part from my XML for LAND format: <TableLayout android:layout_height="wrap_content" android:layout_width="wrap_content" android:layout_gravity="center" android:stretchColumns="*"> <TableRow> <Button android:id="@+id/countbutton" android:text="@string/plus1"/> <Button android:id="@+id/resetbutton" android:text="@string/reset" /> </TableRow> </TableLayout> And now what I dont get - the WIDTH of one row and also of the button depends on the TEXT inside the button. If the both texts are equaly long lets say : TEXT its ok - the table half is in the middle of the screen. But if they have different size - lets say "A" and "THIS IS THE LONG BUTTON" the CENTER of the table isnt in the middle of the screen anymore and so the buttons are not equally width... Cant find any solution... Please advise... Thank you Oliver Goossens

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• How to get the PrintDocumentImageableArea for a given PrintQueue without going through PrintDialog?

  - by Patrick Klug

  From MSDN (link): The type PrintDocumentImageableArea has no public constructor. Hence, the variable documentImageableArea must be declared and assigned to Nothing and only then passed to the method. This method displays a PrintDialog requiring input from the user. After the user has selected a printer, paper size, and orientation and closed the dialog, documentImageableArea points to an actual object and its properties are initialized. I have my custom print dialog and need to get the PrintDocumentImageableArea of a given PrintQueue and PrintTicket! (I need the margin's I need to apply) From what I can gather it is quite common for anything but the most basic applications to use their own custom print dialog. There must be a way to get to this information!? Any input appreciated!

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