search for: r_alpha

I did some test on WinXP and of course one of these was compiling and starting R (good "news": It works). To my surprise the default plotting character changed from the well known empty circle to a black *FILLED* circle in the windows and bitmap devices, but not so on the postscript and pdf devices. Taking a closer look to more symbols shows that some symbols changed from filled to

...>\nendobj\n"); + for(i = 0 ; i < pd->annotspos ; i++) { + pd->pos[++pd->nobjs] = (int) ftell(pd->pdffp); + fprintf(pd->pdffp, "%d %s", pd->nobjs, pd->annots[i]); + free(pd->annots[i]); + } + pd->annotspos = 0; } #define R_VIS(col) (R_ALPHA(col) > 0) *************** *** 6352,6357 **** --- 6401,6407 ---- { PDFDesc *pd = (PDFDesc *) dd->deviceSpecific; char buf[512]; + int i; if(pd->pageno >= pd->pagemax || pd->nobjs >= 3*pd->pagemax) { pd->pageobj = (int *) *************** *** 6377...

...arted, e.g., ... depth <- downViewport("vpname") <draw stuff> upViewport(depth) - The "alpha" gpar() is now combined with the alpha channel of colours when creating a gcontext as follows: (internal C code) finalAlpha = gpar("alpha")*(R_ALPHA(col)/255) This means that gpar(alpha=) settings now affect internal colours so grid alpha transparency settings now are sent to graphics devices. The alpha setting is also cumulative. For example, ... grid.rect(width=0.5, height=0.5, gp=gpar(fill="blue")) #...

...arted, e.g., ... depth <- downViewport("vpname") <draw stuff> upViewport(depth) - The "alpha" gpar() is now combined with the alpha channel of colours when creating a gcontext as follows: (internal C code) finalAlpha = gpar("alpha")*(R_ALPHA(col)/255) This means that gpar(alpha=) settings now affect internal colours so grid alpha transparency settings now are sent to graphics devices. The alpha setting is also cumulative. For example, ... grid.rect(width=0.5, height=0.5, gp=gpar(fill="blue")) #...