File:P hot.gif

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It is recommended to name the SVG file “P hot.svg”—then the template Vector version available (or Vva) does not need the new image name parameter.
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Summary

Description Hot color gradient in Gnuplot (black-red-yellow-white)
Source self-made using Gnuplot
Author Adam majewski
Other versions

Gnuplot source code

set palette rgbformulae 21,22,23 
set terminal gif
set output 'p.gif'
test palette

Numbers after rgbformulae denote number of color function ( see https://astro.uni-bonn.de/~ithies/gnuplot/colortools/rgbformulae.gp ) It means that:

  • color.R=3x
  • color.G=3x-1
  • color.B=3x-2

C code

/* this is part of code which shows how to get above gradient */
unsigned char color[3]; /* array */ 
int convert2light(double p)
{
 if (p<0) return 0;
 if (p>1) return 255;
 else return (int)255*p;
}
void GiveHotColorGradient(double position,unsigned char c[])
{ /* (black-red-yellow-white) */
 c[0] = convert2light(3*position);
 c[1] = convert2light(3*position-1);
 c[2] = convert2light(3*position-2);  
}

See also other images of color gradients

Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.
Category:License migration redundant#P%20hot.gifCategory:GFDL#P%20hot.gif
w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International, 3.0 Unported, 2.5 Generic, 2.0 Generic and 1.0 Generic license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
Category:CC-BY-SA-4.0,3.0,2.5,2.0,1.0#P%20hot.gif
You may select the license of your choice.
Category:Self-published work
Category:Images with Gnuplot source code Category:Hot colors Category:Color gradient Category:Images with C source code
Category:CC-BY-SA-4.0,3.0,2.5,2.0,1.0 Category:Color gradient Category:GFDL Category:GIF that should be converted to SVG Category:Hot colors Category:Images with C source code Category:Images with Gnuplot source code Category:License migration redundant Category:Other images that should use vector graphics Category:Self-published work