Actually, you can do recursion, but overall I would agree that if you want
to use some sort of layout logic XSLT is going to be a PITA at best. One
half-hearted suggestion: if you're a really experience c++ programmer,
rolling a quick command-line java program wouldn't be all that figure out,
and you could use the batik library to do it. The code at the end is a very
simple example from the batik site (http://xml.apache.org/batik) that
generates a rectangle. Other than getting the java sdk and a build
environment like ant, you could be up and running in minutes.
If you can't stand the java, I don't know of anything like this that exists
for c++. Since you seem to only need a very few primitives, I would
recommend simply creating a small utility class that carries around either a
System.Xml.XmlDocument or a StringBuilder class and has a few methods to
create the primitives you need.
/////////////////// Sample Batik Code /////////////////////////
import java.awt.Rectangle;
import java.awt.Graphics2D;
import java.awt.Color;
import java.io.Writer;
import java.io.OutputStreamWriter;
import java.io.IOException;
import org.apache.batik.svggen.SVGGraphics2D;
import org.apache.batik.dom.GenericDOMImplementation;
import org.w3c.dom.Document;
import org.w3c.dom.DOMImplementation;
public class TestSVGGen {
public void paint(Graphics2D g2d) {
g2d.setPaint(Color.red);
g2d.fill(new Rectangle(10, 10, 100, 100));
}
public static void main(String [] args) throws IOException {
// Get a DOMImplementation
DOMImplementation domImpl =
GenericDOMImplementation.getDOMImplementation();
// Create an instance of org.w3c.dom.Document
Document document = domImpl.createDocument(null, "svg", null);
// Create an instance of the SVG Generator
SVGGraphics2D svgGenerator = new SVGGraphics2D(document);
// Ask the test to render into the SVG Graphics2D implementation
TestSVGGen test = new TestSVGGen();
test.paint(svgGenerator);
// Finally, stream out SVG to the standard output using UTF-8
// character to byte encoding
boolean useCSS = true; // we want to use CSS style attribute
Writer out = new OutputStreamWriter(System.out, "UTF-8");
svgGenerator.stream(out, useCSS);
}
}
-----Original Message-----
From: [email protected] [mailto:[EMAIL PROTECTED]
On Behalf Of jophof007
Sent: Tuesday, August 02, 2005 2:09 PM
To: [email protected]
Subject: [svg-developers] Re: Newbie SVG Developer
Building complex logic in XSLT is very hard to do. Some if else is
possible but not recursion for example sometimes needed for complex
algorithms.
John
--- In [email protected], "Chris Serio" <[EMAIL PROTECTED]> wrote:
> Yeah i'd be using .NET. I'm not sure what XSLT is but i'm going to
> look into it right now...The database is pretty simple but the
> drawing needs to have some logic to it so that wires don't cross on
> the schematic etc.
>
> The database will just be a from-connector #, from-pin #, to-
> connector #, to-pin # and some wire gauge/type for each.
>
> Chris
>
>
> --- In [email protected], "William McKenzie" <[EMAIL PROTECTED]>
> wrote:
> > What sort of c/c++ environment are you using? One option would be
> to find
> > something like 'kode' (part of debian linux, I believe) that would
> generate
> > c++ classes or templates from the RelaxNG schema for svg. Those
> classes
> > could then be used to generate SVG objects. If you are in the .NET
> > environment, you might want to consider using ADO.NET to get your
> database
> > objects as XML, and then using XSLT to transform them into SVG.
> Really
> > fairly flexible and elegant, if you can deal with XSLT.
> >
> > ~Bill
> >
> > -----Original Message-----
> > From: [email protected] [mailto:svg-
> [EMAIL PROTECTED]
> > On Behalf Of Chris Serio
> > Sent: Tuesday, August 02, 2005 11:47 AM
> > To: [email protected]
> > Subject: [svg-developers] Re: Newbie SVG Developer
> >
> > Thanks for the info. I was hoping to find a high level API with
> basic
> > functions built into it like "DrawColoredRectangle
> > (x,y,len,width,color)"
> >
> > There's a very near deadline on this project so i'm trying to get a
> > library with the most comprehensive API i can.
> >
> > Chris
> >
> >
> > --- In [email protected], Holger Will <[EMAIL PROTECTED]>
> > wrote:
> > > Chris Serio schrieb:
> > >
> > > > Hey all,
> > > >
> > > > I'm new to SVG. I've never used it before but i want to use it
> to
> > > > generate images that can be used in Visio (which can open SVG),
> > > > possibly convert to PDF and also view on the web. The images
> will
> > be
> > > > generated by a program i want to write which will interpret
> some
> > data
> > > > in a database.
> > > >
> > > > Basically i'm making schematics for a wiring diagram and i will
> > have
> > > > connector types saved in a database as well as to/from pin
> > routings.
> > > > >From this data i want to generate the schematic using SVG.
> > > >
> > > > I'm proficient in C/C++ but i'm not sure where to begin. Is
> there
> > an
> > > > SVG SDK for C/C++ out there somewhere?
> > > >
> > > > Thanks for any suggestions,
> > > > Chris
> > >
> > > Hi Chris
> > >
> > > i dont know any c/c++ , but as svg is just plain simple xml, you
> > should
> > > be able to build your svgs with any xml lib.
> > > for more advanced features including rendering, and rendering to
> > pdf see:
> > > http://cairographics.org/introduction
> > > and
> > > http://cairographics.org/libsvg
> > >
> > > or if you could use Java, there is the Apache Batik project,
> which
> > is
> > > the most complete open source SVG implementation.
> > > http://xml.apache.org/batik/
> > >
> > > and if you are on Linux have a look at
> > > http://librsvg.sourceforge.net/
> > >
> > > or if you plan to have a GUI , and want that to be portable, you
> > migth
> > > as well think of building a XUL app, using mozilla svg.
> > > http://www.mozilla.org/projects/svg/
> > > http://www.xulplanet.com/
> > >
> > > as i said i dont know c/c++ ,
> > > hope it helps anyways
> > > Holger
> >
> >
> >
> >
> >
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