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  • How to convert closed bezier curves to Bitmaps?

    - by Sorush Rabiee
    I need an algorithm to convert a closed bezier curve (perhaps self-crossing) to a binary bitmap: 0 for inside pixels and 1 for outside. I'm writing a code that needs to implement some operations on bezier curves, could anybody give me some resources or tutorials about beziere? Wikipedia and others didn't say anything about optimization, subtracting, union, knot insertion and deletion and other operations :-)

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  • version control on large files

    - by Dustin Getz
    We happily use SVN for SCM at work. Currently I've got our binary assets in the same SVN repository as our code. SVN supports very large files (it transmits them 'streamily' to keep memory usage sane), but it is SLOOWWWWW. What asset management software do you recommend, for about a GB (and growing) worth of assets? We would prefer branching and merging (different assets & config files go to different customers).

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  • NHibernate exception on query

    - by Yoav
    I'm getting a mapping exception doing the most basic query. This is my domain class: public class Project { public virtual string PK { get; set; } public virtual string Id { get; set; } public virtual string Name { get; set; } public virtual string Description { get; set; } } And the mapping class: public class ProjectMap :ClassMap<Project> { public ProjectMap() { Table("PROJECTS"); Id(x => x.PK, "PK"); Map(x => x.Id, "ID"); Map(x => x.Name, "NAME"); Map(x => x.Description, "DESCRIPTION"); } } Configuration: public ISessionFactory SessionFactory { return Fluently.Configure() .Database(MsSqlCeConfiguration.Standard.ShowSql().ConnectionString(c => c.Is("data source=" + path))) .Mappings(m => m.FluentMappings.AddFromAssemblyOf<Project>()) .BuildSessionFactory(); } And query: IList project; using (ISession session = SessionFactory.OpenSession()) { IQuery query = session.CreateQuery("from Project"); project = query.List<Project>(); } I'm getting the exception on the query line: NHibernate.Hql.Ast.ANTLR.QuerySyntaxException: Project is not mapped [from Project] at NHibernate.Hql.Ast.ANTLR.SessionFactoryHelperExtensions.RequireClassPersister(String name) at NHibernate.Hql.Ast.ANTLR.Tree.FromElementFactory.AddFromElement() at NHibernate.Hql.Ast.ANTLR.Tree.FromClause.AddFromElement(String path, IASTNode alias) at NHibernate.Hql.Ast.ANTLR.HqlSqlWalker.fromElement() at NHibernate.Hql.Ast.ANTLR.HqlSqlWalker.fromElementList() at NHibernate.Hql.Ast.ANTLR.HqlSqlWalker.fromClause() at NHibernate.Hql.Ast.ANTLR.HqlSqlWalker.unionedQuery() at NHibernate.Hql.Ast.ANTLR.HqlSqlWalker.query() at NHibernate.Hql.Ast.ANTLR.HqlSqlWalker.selectStatement() at NHibernate.Hql.Ast.ANTLR.HqlSqlWalker.statement() at NHibernate.Hql.Ast.ANTLR.HqlSqlTranslator.Translate() at NHibernate.Hql.Ast.ANTLR.QueryTranslatorImpl.Analyze(HqlParseEngine parser, String collectionRole) at NHibernate.Hql.Ast.ANTLR.QueryTranslatorImpl.DoCompile(IDictionary`2 replacements, Boolean shallow, String collectionRole) at NHibernate.Hql.Ast.ANTLR.QueryTranslatorImpl.Compile(IDictionary`2 replacements, Boolean shallow) at NHibernate.Engine.Query.HQLQueryPlan..ctor(String hql, String collectionRole, Boolean shallow, IDictionary`2 enabledFilters, ISessionFactoryImplementor factory) at NHibernate.Engine.Query.QueryPlanCache.GetHQLQueryPlan(String queryString, Boolean shallow, IDictionary`2 enabledFilters) at NHibernate.Impl.AbstractSessionImpl.GetHQLQueryPlan(String query, Boolean shallow) at NHibernate.Impl.AbstractSessionImpl.CreateQuery(String queryString) I assume something is wrong with my query.

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  • Tools to work with App Engine data dumps

    - by Thilo
    Using the bulkloader.py utility you can download all data from your application's Datastore. It is not obvious how the data is stored, however. From the looks of it, you get a SQLite file with all data in binary format in a single table: sqlite> .tables bulkloader_database_signature result sqlite> .schema result CREATE TABLE result ( id BLOB primary key, value BLOB not null, sort_key BLOB); Are there any tools to work with this data?

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  • How to drag item out from Iframe and drop onto parent

    - by ethan.zhang
    Hi, I have a folder tree view on the left page which was in a tag, left page was the iframe container which contain the file list, when I want to drag the files out from the iframe, I got a headache. no matter the containment option was set to 'parent' or 'window', I just can't drag out elements in the iframe container can any one help on this?

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  • How to include clean target in makefile

    - by neversaint
    I have a makefile that looks like this CXX = g++ -O2 -Wall all: code1 code2 code1: code1.cc utilities.cc $(CXX) $^ -o $@ code2: code2.cc utilities.cc $(CXX) $^ -o $@ What I want to do next is to include 'clean target' so that every time I run 'make' it will automatically delete the existing binary files of code1 and code2 before creating the new ones. I tried to put these lines at the very end of the makefile, but it doesn't work clean: rm -f $@ echo Clean done What's the right way to do it?

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  • TWiki & Cygwin configuration

    - by gabs reyna
    I'm trying to configure the cygwin to work with TWiki, I have to input this in the Cygwin bash shell: mount -b -s c:/... but it doesn't recognize the "-s", I already fixed the problem with -b, it changed the syntax and now is "mount -o binary" for the "mount -b"part. But now it says unknown option with the "-s" anyone?? help?? or what does the -s mean, so I can look it up :S

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  • List of Lua derived VMs and Languages

    - by Shane Holloway
    Is there a compendium of virtual machines and languages derived or inspired by Lua? By derived, I mean usage beyond embedding and extending with modules. I'm wanting to research the Lua technology tree, and am looking for our combined knowledge of what already exists. Current List: Bright - A C-like Lua Derivative http://bluedino.net/luapix/Bright.pdf Agena - An Algol68/SQL like Lua Derivative http://agena.sourceforge.net/ LuaJIT - A (very impressive) JIT for Lua http://luajit.org MetaLua - An ML-style language extension http://metalua.luaforge.net/

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  • Use different Python version with virtualenv

    - by Ulf
    I have a Debian system currently running with python 2.5.4. I got virtualenv properly installed, everything is working fine. Is there a possibility that I can use a virtualenv with a different version of Python? I compiled Python 2.6.2 and would like to use it with some virtualenv. Is it enough to overwrite the binary file? Or do I have to change something in respect to the libraries?

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  • problem running dmd-tango under linux

    - by remy
    does anybody know how to run dmd under linux? i downloaded the tango linux binary and extracted it to a special folder. i call "export PATH..." but when i tried to run dmd all i get was bash: /home/user/dmd/bin/dmd: No such file or directory sorry im new to linux and just installed ubuntu 9.04 64bit. thanks.

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  • GCC ABI compatibility

    - by Fredrik Ullner
    As far as I've understood, it is not possible to link libraries that use different versions of GCC's Application Binary Interface (ABI). Are there ABI changes to every version of GCC? Is it possible to link a library built with 4.3.1 if I use, say, GCC 4.3.2? Is there a matrix of some sort that lists all the ways I can combine GCC versions?

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  • mysql full text search

    - by user121196
    I want to do full text search efficiently in MYSQL using match again. Specially I need to use binary operators(eg. match some text but not other text). However I also need efficient transaction support. But full text search is only supported on MYISAM, not Innodb. What to do?

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  • IBM Informix using spatial datablade

    - by changed
    I need to use IBM Informix for my project where I have point coordinates and I need to find which points are present in query rectangular region. Informix has spatial datablade module with ST_POINT and ST_POLYGON data objects. I know how to create, insert and create r-tree index on tables with such objects. But problem is how to do a SELECT statement, something which list all the points in a particular rectangular region.

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  • Strip OLE header information (MS Access / SQL Server)

    - by crimson13
    I have a C++ application that needs to support binary database content (images, etc). When using MS Access or MS SQL Server this data is wrapped inside an OLE object. How do I strip this OLE header information? Note that I can't just look for the beginning of a specific tag as the content can be png, jpg and a whole heap of other formats. Should I use something like COleDataObject?

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  • Java: repetition, overuse -- ?

    - by HH
    I try to be as minimalist as possible. Repetition is a problem. I hate it. When is it really a problem? what is static-overuse? what is field-method overuse? what is class-overuse? are there more types of overuse? Problem A: when it is too much to use of static? private static class Data { private static String fileContent; private static SizeSequence lineMap; private static File fileThing; private static char type; private static boolean binary; private static String name; private static String path; } private static class Print { //<1st LINE, LEFT_SIDE, 2nd LINE, RIGHT_SIDE> private Integer[] printPositions=new Integer[4]; private static String fingerPrint; private static String formatPrint; } Problem B: when it is too much to get field data with private methods? public Stack<Integer> getPositions(){return positions;} public Integer[] getPrintPositions(){return printPositions;} private Stack<String> getPrintViews(){return printViews;} private Stack<String> getPrintViewsPerFile(){return printViewsPerFile;} public String getPrintView(){return printView;} public String getFingerPrint(){return fingerPrint;} public String getFormatPrint(){return formatPrint;} public String getFileContent(){return fileContent;} public SizeSequence getLineMap(){return lineMap;} public File getFile(){return fileThing;} public boolean getBinary(){return binary;} public char getType(){return type;} public String getPath(){return path;} public FileObject getData(){return fObj;} public String getSearchTerm(){return searchTerm;} Related interface overuse

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  • Is file transfer possible to iPhone 3.0 via Bluetooth or not?

    - by Dimitri Wetzel
    Is it possible to transfer files of a bluetooth device, lets say a digital pen (e.g. Nokia or Logitech io2) to the iPhone? I am interested if I could do a native application that could somehow get that binary file sent by the digital pen and do something with it. I am used to rfcomm and obex but I can only find inconclusive results when I search for that and the support in the iPhone SDK... Any ideas?

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  • Is Pharo just a repackaging/rebranding of Squeak?

    - by number5
    I'm trying to learn some Smalltalk. Fisrt found was Squeak, but since it has been removed from Gentoo ebuild tree because of security problem, so I decided to find an alternative. Then I found Pharo through Seaside project, after I downloaded Pharo 1.0 package, there are actually a SqueakVM inside! So, my question is: Is Pharo just a repackaging/rebranding of Squeak? And are those security problem of Squeak (bundle unsecure libs) still applied to Pharo? Thanks!

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  • How to properly read 16 byte unsigned integer with BinaryReader

    - by Brent
    I need to parse a binary stream in .NET to convert a 16 byte unsigned integer. I would like to use the BinaryReader.ReadUIntXX() functions but there isn't a BinaryReader.ReadUInt128() function available. I assume I will have to roll my own function using the ReadByte function and build an array but I don't know if this is the most efficient method? Thanks!

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  • Set compression level when generating a ZIP file using RubyZip

    - by Vincent Robert
    Hi, I have a Ruby program that zips a directory tree of XML files using the rubyzip gem. My problem is that the file is starting to be heavy and I would like to increase the compression level, since compression time is not an issue. I could not find in the rubyzip documentation a way to specify the compression level for the created ZIP file. Anyone know how to change this setting?

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  • Giving event control back to xaml/callee to access check/uncheck

    - by dovholuk
    Hi All, I've scoured the Internet but my search-foo must not work if it's out there cause I just can't find the proper search terms to get me the answer I am looking for. So I turn to the experts here as a last resort to point me in the right direction. What I'm trying to do is create a composite control of a text box and a list box but I want to allow the control consumer to decide what to do when say the checkbox is checked/unchecked and I just can't figure it out... Maybe i'm going about it all wrong. What I've done thus far is to: create a custom control that extends ListBox expose a custom DP named "Text" (for the Text box but it's not the important part) craft the generic.xaml so that the list items have a default ItemTemplate/DataTemplate inside the DataTemplate I'm trying to set the "Checked" or "Unchecked" events expose 'wrapper' events as DPs in the custom control that would get 'set' via the template when instatiated As soon as I try something like the following (inside generic.xaml): <DataTemplate> <...> <CheckBox Checked="{TemplateBinding MyCheckedDP}"/> <...> </DataTemplate> I get runtime exceptions, the designer - vs2010 - pukes out a LONG list of errors that are all very similar and nothing I do can make it work. I went so far as to try using the VisualTreeHelper but no magic combination I could find would work nor would it allow me to traverse the tree because when the OnApplyTemplate method fires the listbox items don't exist yet and aren't in the tree. So hopefully this all makes sense but if not please let me know and I'll edit the post for clarifications. Thanks to all for any pointers or thoughts... Like I said maybe I'm heading about it in the wrong way from the start... EDIT (Request for xaml) generic.xaml datatemplate: <DataTemplate > <StackPanel Orientation="Horizontal" > <local:FilterCheckbox x:Name="chk"> <TextBlock Text="{Binding Path=Display}" /> </local:FilterCheckbox> </StackPanel> </DataTemplate> usercontrol.xaml (invocation of custom control) <local:MyControl FancyName="This is the fancy name" ItemChecked="DoThisWhenACheckboxIsChecked" <-- this is where the consumer "ties" to the checkbox events ItemsSource="{Binding Source={StaticResource someDataSource}}" />

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