🚀 go-pugleaf

Hello,

        As a still new Khoros user, I wrote some Vroutines which are working
fine.
I am interested in writing HYBRID GRAPHICS(NON interactive) routines.
This to be able to superimpose on B/W (8 bits/pixels)images, overlay
graphics.
Khoros documentation ENCOURAGES users to do so !!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I use a Sun4 standard machine (O.S. (4.1.2)) + Khoros(1.0) + Fortran(1.5)
I know very well 'C' language but I am NOT that used to Xwindows
programming.

<<<<<<< THIS MY 4th MESSAGE ABOUT GRAPHICS WITH KHOROS >>>>>>>>

I would like to :
        1) to display simulatenously in my program 2 images.
               - 1 source image.
               - 1 destination image.
        2) to be able to add some graphics on the source image.
        3) to be able to add some graphics and modify the pixels
           on the destination image.

Problems:
I MUST APOLOGISE FOR MY PRECEDENT MESSAGE(#3).
My program was roughly good.
It appeared to me that the ONLY problem I have is :

 when a particular task is a bit heavy(longer process),
 the next task could be carried out before the end of the first one !!!

 ex.: xvd_update_image();   /* longer process updates & clears annotations
*/
      X2D_drawline();       /* short process */

      xvd_update_image takes a longer time and finishes
      after X2D_drawline. X2D_drawline once carried out is erased by
      xvd_update_image which ends.


                     -------------------------
                     |       Questions       |
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1) Is there a way to SYNCHRONIZE or WAIT for the end of an heavy process
????
2) Is it easily possible to UNdraw any graphic function ???

Regards

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Albrecht daniel       Image Processing laboratory
daniel.albrecht@cen.jrc.it              ( E.E.C. - Europe )
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