Re: Movies

[Jan Kreft]

Hi,

yes, now it works! Thanks very much all of you. The main point was, choose
the right X function! The gist of Marcus' suggestion was to use

On 19 Jan 1998, Marcus G. Daniels wrote:

> XpmWriteFileFromPixmap (display, fileNameBuf, pm, 0, NULL);

instead of my

result = XWriteBitmapFile(display, fileName, pm, width, height, -1, -1);

Only had to change two lines from my previous Raster.m. What I now have
added to the original Raster is the following (In Swarm's Raster.m):

#include <X11/xpm.h>

...

@implementation Raster

...

-writeBitmapToFile:  (char *) f {
  // adapted from Raster-drawSelf and ZoomRaster-writeSelfToFile
  char * fileName = f;

  XpmWriteFileFromPixmap(display, fileName, pm, 0, NULL);

  return self;
}

In Gecko's QuadDisplay.m (This is called every n timesteps, QuadDisplay
is subclassed from Raster):

-writeFrame { // make screenshot of worldDisplay raster = "Gecko" window
  char filename[256];
  sprintf(filename, "%s.%06d.ppm", [geckoControl getFileStem], 
getCurrentTime());
  [self writeBitmapToFile: filename]; // message in Raster
  return self;
}

Thanks again very much for your help,

Jan.


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