Line with Arrow (Line Cap)

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Line with Arrow (Line Cap)

by car.nage :: Rate this Message:

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Hello!

I'm trying to draw some shapes to a PdfTemplate. I have to draw a line which should end with a filled triangle arrow. Searching this list and requesting google doesn't deliver a solution by now.

So: How to draw a line with an arrow as line cap?

Thanks in advance
Alex Maier
--
Neu: GMX DSL bis 50.000 kBit/s und 200,- Euro Startguthaben!
http://portal.gmx.net/de/go/dsl02

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Re: Line with Arrow (Line Cap)

by Mark Storer-2 :: Rate this Message:

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PDF only supports a few line cap styles:

"Butt cap" the line ends squarely at the endpoint.
"Round cap" the line ends with a half-circle with a diameter equal to the line width
"Projecting square cap" similar to "butt cap", only the line projects half the line width past the end point.

That's it.

If you want anything beyond that you must draw it yourself.  That's an interesting problem, geometrically speaking.  Given some set of points/stroke/fill, draw it on the end of a line in the correct direction/thickness...

Hey... Graphics2D... nope.  It has the same line caps, and I don't see a way to make a custom end cap there either.

There's got to be some open source project that implements this out there somewhere.  SVG maybe?  Batik...  NOPE.  Grr.

Sorry, looks like you're on your own.

--Mark Storer
  Senior Software Engineer
  Cardiff.com

#include <disclaimer>
typedef std::Disclaimer<Cardiff> DisCard;



> -----Original Message-----
> From: car.nage@... [mailto:car.nage@...]
> Sent: Tuesday, October 20, 2009 6:22 AM
> To: itext-questions@...
> Subject: [iText-questions] Line with Arrow (Line Cap)
>
>
> Hello!
>
> I'm trying to draw some shapes to a PdfTemplate. I have to
> draw a line which should end with a filled triangle arrow.
> Searching this list and requesting google doesn't deliver a
> solution by now.
>
> So: How to draw a line with an arrow as line cap?
>
> Thanks in advance
> Alex Maier
> --
> Neu: GMX DSL bis 50.000 kBit/s und 200,- Euro Startguthaben!
> http://portal.gmx.net/de/go/dsl02
>
> --------------------------------------------------------------
> ----------------
> Come build with us! The BlackBerry(R) Developer Conference in SF, CA
> is the only developer event you need to attend this year.
> Jumpstart your
> developing skills, take BlackBerry mobile applications to
> market and stay
> ahead of the curve. Join us from November 9 - 12, 2009. Register now!
> http://p.sf.net/sfu/devconference
> _______________________________________________
> iText-questions mailing list
> iText-questions@...
> https://lists.sourceforge.net/lists/listinfo/itext-questions
>
> Buy the iText book: http://www.1t3xt.com/docs/book.php
> Check the site with examples before you ask questions:
> http://www.1t3xt.info/examples/
> You can also search the keywords list:
http://1t3xt.info/tutorials/keywords/


------------------------------------------------------------------------------
Come build with us! The BlackBerry(R) Developer Conference in SF, CA
is the only developer event you need to attend this year. Jumpstart your
developing skills, take BlackBerry mobile applications to market and stay
ahead of the curve. Join us from November 9 - 12, 2009. Register now!
http://p.sf.net/sfu/devconference
_______________________________________________
iText-questions mailing list
iText-questions@...
https://lists.sourceforge.net/lists/listinfo/itext-questions

Buy the iText book: http://www.1t3xt.com/docs/book.php
Check the site with examples before you ask questions: http://www.1t3xt.info/examples/
You can also search the keywords list: http://1t3xt.info/tutorials/keywords/