Re: Making an interactive RGB color picker

Keikonium wrote: > This may not be exactly what you think, but I didn't know how else to > word the title. I basically need to make a script that will go through > every possible color combination and print them to look just like (or > similar) to the windows color picker. I need it in the format X-Y-Z. For > example: > > 255-255-255 > 255-254-254 > 255-253-253 > > What I have so far is this: > > *********************** > <?php > $break = print"<br>"; > $n1 = "255"; > $n2 = "12"; > $n3 = "186"; > > $output = print" > \$drawrect(\$get(color_x),\$get(color_y),\$get(color_w),\$get(color_h),brushColor-$n1-$n2-$n3 > penColor-$n1-$n2-$n3) > > \$button2(\$get(color_x),\$get(color_y),0,0,\$get(color_w),\$get(color_h),,,PVAR:SET:colorize_global:brushcolor-$n1-$n2-$n3 > pencolor-$n1-$n2-$n3,TOOLTIP:\"$n1-$n2-$n3\") > "; > > $output > ?> > *********************** > > The $drawrect, $button2, and $get are NOT php functions, but to be > printed as actual text (which is why I have escaped them with the > backslash). Anyways, I thought it would be easiest to separate each > R-G-B value into its own variable ($n1, $n2, and $n3). That way I could > just use some code (regex?) to cycle through the numbers 0 to 255. > > The HARD part (that I can't seem to even think of a way to make it > possible) is to change JUST the G and B values while keeping the R value > at 255. Then when the G and B values both hit 0, the R value is set to > 254 and repeated until it also hits 0 with the other two. I think (?) > that will do every possible color? I also need to print each string with > the individual color output, and I don't know how to do that either. > > In short, I would like something that looks just like the windows color > picker, and when each pixel of it is clicked, it will show me the R-G-B > value in the format I would like. > > If anyone understands what I am after,and could help, that would be > awesome! There are plenty of free ones available, try: http://www.softcomplex.com/products/tigra_color_picker/ But to answer part of your question, this will give you the over 16,000,000 million colors. Example only, I wouldn't run this :-) for($n1 = 255; $n1 >= 0; $n1 = $n1--) { $h1 = base_convert($n1, 10, 16); for($n2 = 255; $n2 >= 0; $n2 = $n2--) { $h2 = base_convert($n2, 10, 16); for($n3 = 255; $n3 >= 0; $n3 = $n3--) { $h3 = base_convert($n3, 10, 16); echo "$n1-$n2-$n3 ".sprintf("#%06s\n","$h1$h2$h3"); } } } This example will give you the web safe color pallet, 200 and some odd colors: for($n1 = 255; $n1 >= 0; $n1 = $n1 - 51) { $h1 = base_convert($n1, 10, 16); for($n2 = 255; $n2 >= 0; $n2 = $n2 - 51) { $h2 = base_convert($n2, 10, 16); for($n3 = 255; $n3 >= 0; $n3 = $n3 - 51) { $h3 = base_convert($n3, 10, 16); echo "$n1-$n2-$n3 ".sprintf("#%06s\n","$h1$h2$h3"); } } } -Shawn