Template:Weather box/colt/sandbox

background:white; color:#000; font-size:85%

The Template:Weather_box/colt makes temperature ("t") background colors. It is an alternative to Template:Weather box/colpastel, which uses lighter shades of color.

Temperature in Celsius
-30	-29	-28	-27	-26	-25	-24	-23	-22	-21
-20	-19	-18	-17	-16	-15	-14	-13	-12	-11
-10	-9	-8	-7	-6	-5	-4	-3	-2	-1
0	1	2	3	4	5	6	7	8	9
10	11	12	13	14	15	16	17	18	19
20	21	22	23	24	25	26	27	28	29
30	31	32	33	34	35	36	37	38	39
40	41	42	43	44	45	46	47	48	49
50	51	52	53	54	55	56	57	58	59

Temperature in Fahrenheit
-30	-28	-26	-24	-22	-20	-18	-16	-14	-12
-10	-8	-6	-4	-2	0	2	4	6	8
10	12	14	16	18	20	22	24	26	28
30	32	34	36	38	40	42	44	46	48
50	52	54	56	58	60	62	64	66	68
70	72	74	76	78	80	82	84	86	88
90	92	94	96	98	100	102	104	106	108
110	112	114	116	118	120	122	124	126	128
130	132	134	136	138	140	142	144	146	148

Usage

Template:Weather box/colt/sandbox can be used to produce a background color in a table cell, based off a given number. Insert {{Weather box/colt/sandbox|0}}, with a number from the Celsius table above as the first parameter, into a style statement.

Example

{| class="wikitable"
|-
| style="{{Weather box/colt/sandbox|0.0}}"|32
| style="{{Weather box/colt/sandbox|28.9}}"|84
| style="{{Weather box/colt/sandbox|63.3}}"|146
|}

Will produce

32	84	146

Performance considerations

Template:Weather_box/colt has been optimized to handle a range of values which are changed into color codes by using a #switch function, with 47 branches, ordered by expected frequency. It can assign colors to temperatures in Celsius at over 460 numbers per second, or 9x faster than encoding color settings as 3-part hexadecimal conversions of temperatures. The 47 branches split the overall range into 3-unit brackets, rather than using a precise spectrum of hundreds of shades of color; however, in practice, the 47 possible shades provide enough contrast to emphasize low versus high temperatures.

Usage

Performance considerations

See also