writegif(3f) - [M_pixel__writegif] Codes pixel-map with palette into GIF format. Optional transparent color (LICENSE:PD)
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subroutine writegif (FileName, Pixel, ColorMap, Transparent)
character(len=*), intent(in) :: FileName integer, intent(in), dimension(:,:) :: Pixel integer, intent(in), dimension(:,0:) :: ColorMap integer, intent(in), optional :: Transparent
Write GIF file from pixel array and color map.
FileName file to create or replace Pixel Pixel values 0 to ncol ColorMap Color map (RGB 0:255 for colours 0:ncol) Transparent Optional
Sample call:
program demo_writegif use M_pixel__writegif, only : writegif integer :: Pixel(100,100) integer :: Transparent = 0 integer :: ColorMap (3,0:7) colormap(:,0)=[255,255,255] colormap(:,1)=[255, 0, 0] colormap(:,2)=[ 0,255, 0] colormap(:,3)=[ 0, 0,255] colormap(:,4)=[255,255, 0] colormap(:,5)=[255, 0,255] colormap(:,6)=[ 0,255,255] colormap(:,7)=[ 0, 0, 0]! put some colored boxes into pixmap pixel(:,:)=0 pixel(1:80,1:80)=1 pixel(11:20,11:20)=2 pixel(21:40,21:40)=3
! write gif with a transparent background call writegif(boxes_t.gif,pixel,ColorMap,Transparent)
! change background color and write standard gif file where (pixel.eq.0) pixel=4 call writegif(boxes.gif,pixel,ColorMap)
end program demo_writegif
o Version 1.01, 1999 August: Written by Jos Bergervoet o Version 2, 2008 Jan 28: Modified by Clive Page to use stream I/O, array as colourmap. o Version 3, 2017 July 6: Modified by John Urban to make it easier to use with M_PIXEL(3f) module.
Public Domain.
Nemo Release 3.1 | writegif (3m_pixel__writegif) | April 21, 2023 |