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S Nov 21 at 0:34 history suggested Kai Burghardt CC BY-SA 4.0
fix typos, fix spelling mistake
Nov 20 at 23:09 review Suggested edits
S Nov 21 at 0:34
Jun 2, 2017 at 23:04 comment added mvds @Linus amazing image! It's turning into a fractal.
Jun 2, 2017 at 22:24 vote accept Linus
Jun 2, 2017 at 22:24 comment added Linus @mvds Thanks for the help, here is a really cool image I generated going up to 20 order polynomial with only -1 or 1 coefficients: imgur.com/a/CqZsU
Jun 2, 2017 at 20:10 comment added mvds As the code stands now, we have w*h buckets of 64 bits wide, that need to be mapped to a (smaller, typically 8 bit) pixel values. If we want to skip the buckets and write directly to a bitmap, you have to mix the color in the bitmap at that point with the color of the newly plotted point, which is called alpha blending.
Jun 2, 2017 at 20:06 comment added mvds I added the relevant code for gnuplot
Jun 2, 2017 at 19:58 comment added Tamoghna Chowdhury @Linus Alpha blending is linear interpolation of 2 colors with a normalized transparency (alpha) value as the bias.
Jun 2, 2017 at 19:41 history edited mvds CC BY-SA 3.0
added 1141 characters in body
Jun 2, 2017 at 18:33 comment added Linus Not sure if gnuplot supports that but I'll try. What do you mean by alpha blending?
Jun 2, 2017 at 18:27 comment added mvds You should look into a way to plot the bitmap directly
Jun 2, 2017 at 18:23 comment added Linus That works, but I lose a lot of detail: imgur.com/a/Nx61B
Jun 2, 2017 at 18:18 comment added mvds You have a few points with extremely high value (e.g. 0,0). You should either hardcode some low v_max or use a logarithmic scale.
Jun 2, 2017 at 18:07 comment added Linus Thanks for the tips, for some reason when I ran the code with the bucket implementation with max_degree being set to 5 I got a black image. Here is a pastebin: pastebin.com/HcXfKqvT and this is what it looks like: imgur.com/a/eLAnr
Jun 2, 2017 at 17:25 history edited mvds CC BY-SA 3.0
added 2744 characters in body
Jun 2, 2017 at 17:04 history answered mvds CC BY-SA 3.0