思慕

cpgplot输出到png文件

 
  • Me
  • Jul 11, 2020

语法

if ( (newgraph == 1) || (newgraph == 3) ) {
    if (device == 0x0) device = "?" ;    
	  int ier = cpgbeg(0, device, nxpage, nypage) ;
	  if (ier != 1) {
	      cout << "problem in opening PGPLOT display !" << endl ;
	  }
}

可用的device list

Graphics device/type (? to see list, default /Xserve): ?
PGPLOT v5.2.2 Copyright 1997 California Institute of Technology
Interactive devices:
   /XWINDOW   (X window window@node:display.screen/xw)
   /XSERVE    (A /XWINDOW window that persists for re-use)
Non-interactive file formats:
   /GIF       (Graphics Interchange Format file, landscape orientation)
   /VGIF      (Graphics Interchange Format file, portrait orientation)
   /LATEX     (LaTeX picture environment)
   /NULL      (Null device, no output)
   /PNG       (Portable Network Graphics file)
   /TPNG      (Portable Network Graphics file - transparent background)
   /PS        (PostScript file, landscape orientation)
   /VPS       (PostScript file, portrait orientation)
   /CPS       (Colour PostScript file, landscape orientation)
   /VCPS      (Colour PostScript file, portrait orientation)
Graphics device/type (? to see list, default /Xserve):

如果设置为 /PNG

int ier = cpgbeg(0, '/PNG', nxpage, nypage) ;

会在执行目录输出成 pgplot.png.

自定义文件名

int ier = cpgbeg(0, 'mypic.png/PNG', nxpage, nypage) ;

参考了 https://www.aber.ac.uk/en/media/departmental/imaps/pdfs/laboratoryfiles/ws_ph30610_pgplot.pdf

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