BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Line rasterization          BorlandTalk.com Forum Index -> Delphi Graphics View previous topic :: View next topic   Author Message Tomaz Koritnik Guest Posted: Tue Jun 22, 2004 10:19 am    Post subject: Line rasterization Hi How are polylines of width more than 1 rasterized? I need to rasterize lines like the ones GDI draws where edges and joins are rounded. Are they rasterized as polygons maybee? regards Tomaz Back to top Nils Haeck Guest Posted: Tue Jun 22, 2004 1:51 pm    Post subject: Re: Line rasterization Yes, usually if they're rounded, the preprocessing step will turn this into a polyline with a few segments to approximate the arc, then all of that is sent to the low-level rendering engine that just takes straight line segments. Nils "Tomaz Koritnik" <nospam (AT) nospam (DOT) com> wrote Quote: Hi How are polylines of width more than 1 rasterized? I need to rasterize lines like the ones GDI draws where edges and joins are rounded. Are they rasterized as polygons maybee? regards Tomaz Back to top Tomaz Koritnik Guest Posted: Tue Jun 22, 2004 7:55 pm    Post subject: Re: Line rasterization Hi Thanks Nils. I'm also working on a graphics library like you do and I like very much what you accomplished. But the only thing I'm still missing is antialiasing. I looked at your dtpDocuments demo, and lines & curves are beautifully drawn. Do you have any link to info about antialiasing techniques? I prefer articles not example code. regards Tomaz "Nils Haeck" <n.haeckno (AT) spamchello (DOT) nl> wrote Quote: Yes, usually if they're rounded, the preprocessing step will turn this into a polyline with a few segments to approximate the arc, then all of that is sent to the low-level rendering engine that just takes straight line segments. Nils "Tomaz Koritnik" <nospam (AT) nospam (DOT) com> wrote in message news:40d807ba (AT) newsgroups (DOT) borland.com... Hi How are polylines of width more than 1 rasterized? I need to rasterize lines like the ones GDI draws where edges and joins are rounded. Are they rasterized as polygons maybee? regards Tomaz Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         BorlandTalk.com Forum Index -> Delphi Graphics All times are GMT Page 1 of 1   Jump to: Select a forum C++ Builder Newsgroups----------------C++ BuilderC++ Builder (ActiveX)C++ Builder (Announcements)C++ Builder (Command Line Tools)C++ Builder DatabasesC++ Builder Databases (ADO)C++ Builder Databases (Desktop)C++ Builder Databases (InterBase Express)C++ Builder Databases (Multi-Tier)C++ Builder Databases (SQL Servers)C++ Builder (Graphics)C++ Builder (IDE)C++ Builder (Internet)C++ Builder (Internet Socket)C++ Builder (Internet Web)C++ Builder (Jobs)C++ Builder (Language)C++ Builder (Language C++)C++ Builder (Compatibility with MFC)C++ Builder (Native API)C++ Builder (Non-Technical)C++ Builder (Students)C++ Builder (Third Party Tools)C++ Builder (Upgrade)C++ Builder (VCL)C++ Builder (VCL Components Usage)C++ Builder (VCL Components Development)C++ Builder (VCL Usage)C++ Builder (WinAPI)C++ Builder Installation Delphi Newsgroups----------------Delphi (General)Delphi ActiveX Controls UsageDelphi ActiveX Controls DevelopmentDelphi As400Delphi DatabasesDelphi Databases (ADO)Delphi Databases (dbExpress)Delphi Databases (Desktop)Delphi Databases (InterBase Express)Delphi Databases (Multi-Tier)Delphi Databases (SQL Servers)Delphi DeploymentDelphi GraphicsDelphi IDEDelphi InternationalizationDelphi InternetDelphi Internet Isapi-WebBrokerDelphi Internet WebSnapDelphi Internet WinsockDelphi JobsDelphi Language BASMDelphi Language ObjectPascalDelphi Model Driven Architecture (General)Delphi Model Driven Architecture (Third Party)Delphi MultimediaDelphi Native APIDelphi Non-TechnicalDelphi ObjectPascalDelphi OLE AutomationDelphi OO designDelphi OpenToolsAPIDelphi Reporting-ChartingDelphi RTLDelphi StudentsDelphi TeamSourceDelphi Thirdparty ToolsDelphi Thirdparty Tools (General)Delphi Thirdparty Tools (IntraWeb)Delphi Thirdparty Tools (RaveReports)Delphi UpgradeDelphi VCLDelphi VCL ComponentsDelphi VCL Components UsingDelphi VCL Components WritingDelphi WebServices SOAPDelphi WinAPIDelphi XMLDelphi Installationcomp.lang.pascal.delphi.components.misccomp.lang.pascal.delphi.components.usagecomp.lang.pascal.delphi.components.writingcomp.lang.pascal.delphi.databasescomp.lang.pascal.delphi.misccomp.sources.delphi JBuilder Newsgroups----------------JBuilderJBuilder AnnouncementsJBuilder Applet IssuesJBuilder As400JBuilder CompilerJBuilder CORBA/RMIJBuilder DatabasesJBuilder DB SwingJBuilder DebuggerJBuilder DeploymentJBuilder DocumentationJBuilder EnterpriseJBuilder HandheldJBuilder IDEJBuilder JavaJBuilder JavaAPIJBuilder Java LanguageJBuilder Java SwingJBuilder Java BeansJBuilder Java Beans UsageJBuilder Java Beans DevelopmentJBuilder JBCLJBuilder JDataStoreJBuilder JobsJBuilder LinuxJBuilder MacintoshJBuilder & MobileSetJBuilder MultiLingual AppsJBuilder Non-TechnicalJBuilder OpenToolsJBuilder Servlets (JSP)JBuilder StudentsJBuilder Team DevelopmentJBuilder Thirdparty ToolsJBuilder UpgradeJBuilder Installation InterBase Newsgroups----------------InterBaseInterBase Bug DiscussionInterBase GeneralInterBase IBConsoleInterBase OpenSourceInterBase ReplicationInterBase SQLInterBase ThirdpartyInterBase Installation Miscellaneous Borland Newsgroups----------------AppCenterAppServerEnteraVisiBroker  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.