[rgb_Row]
Description
This tag generates a colour array that cycles through the colour spectrum and returns a #hex value to represent the current iteration.
You can additionally specify minimum and maximum brightness levels.
Enjoy!
Ke
Parameters
-Max Brightness
integer, optional
-Min Brightness
integer, optional
-Row Number
integer, required
-Total Rows
integer, required
Sample Usage
[var:'toloop'=15]
[loop:$toloop]
<span style="background-color:[rgb_row:loop_count,$toloop];">Row: [loop_count]</span><br/>
[/loop]
Source Code
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define_tag: 'rgb_row';
// Returns a transitional colour based on total number of rows and the current row number
// PARAMS: Row Number, Total Rows, Min Brightness (optional) , Max Brightness (optional)
// Example use:
// [var:'toloop'=15]
// [loop:$toloop]
// <span style="background-color:[rgb_row:loop_count,$toloop];">Row: [loop_count]</span><br/>
// [/loop]
if:params->size >= 2;
local:'row'=params->(get:1);
local:'count'=params->(get:2);
if:#count > 360;
local:'row' = (math_ceil:#row * (360.00/#count));
#count = 360;
/if;
local:'deg'=360/#count;
local:'loop'= #count;
local:'colours'=(array);
local:'min' = 100; // Minimum brightness level
local:'max' = 220; // Maxium brightness level
params->size >=3 ? #min = params->(get:3); // Overide Minimum Brightness
params->size >=4 ? #max = params->(get:4); // Overide Maxium Brightness
local:'r'=(array);
local:'g'=(array);
local:'b'=(array);
local:'c'='';
if:(var_defined:'RBG'+#count);
#colours = (var:'RBG'+#count);
else;
// Generate first hue array
loop:#loop;
local:'ang'=#deg*loop_count;
local:'offset' = 120;
if:#ang < #offset || #ang >= (#offset+240);
#c=#min;
else:#ang >(#offset+60) && #ang < (#offset+240)-60;
#c=#max;
else:#ang <=(#offset+60);
#c=#min+((#max-#min) * ((100.00/60)* (#ang-#offset)*0.01));
else;
#c= #min+((#max-#min)* ((100.00/60)*((#offset+240)-#ang)*0.01) );
/if;
#c = (math_round:#c,1);
#c = (math_random:-lower=#c,-upper=#c,-hex);
#c->size<2?#c='0'+#c;
#b->(insert:#c);
/loop;
// Cycle for other primarys
#r = #b;loop:#b->size/3;local:'x' = #r->(get:1);#r->(removefirst);#r->(insertlast:#x);/loop;
#g = #r;loop:#b->size/3;local:'x' = #g->(get:1);#g->(removefirst);#g->(insertlast:#x);/loop;
loop:#b->size;#colours->(insert:'#'+#r->(get:loop_count)+#b->(get:loop_count)+#g->(get:loop_count));/loop;
var:'RBG'+#count = #colours; // Store colour array for future use
/if;
if:#row <= #colours->size;
local:'colour' = #colours->(get:#row);
return:#colour;
else;
return:'#FFFFFF';
/if;
/if;
/define_tag;
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