Hi,
I'm Thimal Kempitiya, third year computer science and engineering
undergraduate at university of moratuwa. I'm interested in the project idea
"implement shading with Coons and tensor-product patch meshes". I have the
basic knowledge about the cubic Bézier curves", , "bilinear interpolation",
" and "Bernstein polynomials and i think can manage rest of the mathematics
needed for this project. Also I have the java knowledge to do the
implementation part.
I clone the PDFBOX repository and checked the code regarding to the shading
and I tried some examples in pdfbox cook book.
Also I tried code to work with the type 1 shading type.
File f=new File("C:\\asy-latticeshading.pdf");
try {
PDDocument doc=PDDocument.load(f);
PDPage p;
p=(PDPage)doc.getDocumentCatalog().getAllPages().get(0);
PDShadingType1 pdst1=new PDShadingType1(p.getCOSDictionary());
PDRectangle pdr=p.findCropBox();
PDGraphicsState pdg=new PDGraphicsState(pdr);
Matrix m=pdg.getCurrentTransformationMatrix();
Type1ShadingPaint t1sp=new Type1ShadingPaint(pdst1, m,
(int)p.findCropBox().getHeight());
But this give me error saying unknown shading type 0
java.io.IOException: Error: Unknown shading type 0
can you please tell me what I'm doing wrong here and how can i solve this.
--
*Thimal Kempitiya <http://www.facebook.com/thimalk> UndergraduateDepartment
of Computer Science and Engineering University of Moratuwa.*
