Jakub Marecek

My personal homepage proper is at http://cs.nott.ac.uk/~jxm. This is just my slides from SAGE Days 9 (slides.pdf) and related stuff:

Graphical Demo of Integer Programming:

Installing VTK with Java Wrappers:

SVG and PDF Output for JyScript.

import org.w3c.dom.Element;
import org.w3c.dom.DOMImplementation;
import org.w3c.dom.svg.SVGDocument;
import org.apache.batik.swing.JSVGCanvas;
import org.apache.batik.svggen.SVGGraphics2D;
import org.apache.batik.dom.svg.SVGDOMImplementation;
import org.apache.batik.transcoder.TranscoderInput;
import org.apache.batik.transcoder.TranscoderOutput;
import org.apache.fop.svg.PDFTranscoder;
public class Demo extends Applet {
 /* ... */
 public static void export() {
   DOMImplementation impl = SVGDOMImplementation.getDOMImplementation();
   String svgNS = SVGDOMImplementation.SVG_NAMESPACE_URI;
   SVGDocument doc = (SVGDocument)impl.createDocument(svgNS, "svg", null);
   SVGGraphics2D g = new SVGGraphics2D(doc);
   /* Here use can use g as if it was the usual canvas */
   /* Here we make it visible */
   Element root = doc.getDocumentElement();
   g.getRoot(root);
   JSVGCanvas canvas = new JSVGCanvas();
   JFrame f = new JFrame();
   f.getContentPane().add(canvas);
   canvas.setSVGDocument(doc);
   f.pack();
   f.setVisible(true);
   /* Here we produce the PDF */
   try {
     PDFTranscoder pdfTranscoder = new PDFTranscoder();
     TranscoderInput tIn = new TranscoderInput(doc);
     FileOutputStream fileOut = new FileOutputStream("test.pdf");
     TranscoderOutput tOut = new TranscoderOutput(fileOut); pdfTranscoder.transcode(tIn, tOut); fileOut.flush(); fileOut.close();
    } catch(Exception e) {e.printStackTrace();}
 }

TeX and PS and PDF Output for SAGE plot3ds

P.triangulate()
vl=P.vertex_list()
fl=P.face_list()
import os
F=open("a.sk","w")
F.write("def mymy {\n")
for a in fl:
  F.write('  polygon')
  F.write(''.join(['('+str(p[0])+','+str(p[1])+','+str(p[2])+')' for p in a]))
  F.write('\n')
  a.reverse()
  F.write('  polygon')
  F.write(''.join(['('+str(p[0])+','+str(p[1])+','+str(p[2])+')' for p in a]))
  F.write('\n')
  F.write("}\n")
  F.write("put { view((2,2.5,2)) } {mymy}\n")
  F.close()
os.system("/localhome/sage/bin/sketch -V1.0 -T a.sk -o a.tex")
os.system("latex a.tex >/dev/null")
os.system("dvips a.dvi -o >/dev/null")
os.system("convert a.ps a.png")

See this for yourself at https://hydrogen.irmacs.sfu.ca:8000/home/pub/8/

JakubMarecek (last edited 2008-11-14 13:41:58 by localhost)