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Wikipedia:WikiProject Elements/PTG/graphics

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PTG (talk)
Periodic Table Graphics
Themes
(the sciences)
WT:ELEM
Graphics
(the presentations)
Blocks
(BLOCK) (talk)
Micro-PT
(MICRO) (talk)

Categories

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1. element to cat
2. cat to elements
3. distinguish cat areas (border in pt)
4. pleasant view
not
x1. association (x 'red=alkaline reactive')
x2. disrupt text (?)

Requirements, to solve

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  • 9+1 colors (2018): Number of categories: 9 identified, + 1 "unknown chemical properties" i.e., category can not be established
? Could it become 10+1? (it was before 2018, ie set 2013)
  • border illustration:
Possible diagonal mix for border elements. Colors should be distinct wrt this. (new)
distinct classes, not fluid
would confuse? Doubted classes (say metalloids) could be noted differently. (hatching)
Legend
  • Recognisability in-table <--> legend below connection
  • Do not use associations (not "metals associate with silvergrey"; not "alkalis burn easily so are red")
  • Do other sets (blocks, ...) are not considered simultaneously (do not appear in the same table)
  • Advise a sequence in the periods (left-to-right) OR require circular consitency (NG-AM)
  • Advise/check sequence for variant PTs (Left Step, ...)
  • Contrast check wrt background (white or near-white)
  • Future: allow mixed colors (diagonally mixed?). color requirements?


  • Fontcolors used (css-style attribute:color):
1. black and wikilink-blue (local link, visited/notvisited):
  • A  black → #000000 
  • A  #0645AD --bluelink
  • A  #0B0080 -- bluelink, visited (help)

Fontcolors: State of Matter, wl

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State of Matter fontcolor used:
  • A  Solid → #000000 
  • A  Liquid → #000000 
  • A  Gas → #000000 
  • A  Unknown phase → #000000 
IOW, black is used twice (meaning 'solid')
  • A  wikilink → #0645ad 

Analysis: bordering colors

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2018 set (9 cats+unk)
2018 set (9 cats+unk)
category number of borders
AM 2
AEM 3
LN 3
AN 3
TM 4
PTM 3
MOID 4
RENONM 3
NG 3
UNK 4
(AM in LeftStep) 4

Recognition and distinction

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"Recognition and distinction" are requirements for legend colors to check that the reader is able to recognise a set (category), to distinguish different sets, to find a map color in the legend and —reverse— find a legend color on the map.

The reader should be able to discern color borders (where does a category end?, where does it meet an other category?), and also recognise (group) same-color disjoint areas.

Three needs (checks) for legend colors used on maps

Find element-color or area-color in the legend
Identify single-color set (can be disjoint), and distinguish different sets at border.
Find the area (elements) from a color in the legend
  • When checking for color blindness accessibility, these requirements are of huge influence.
  • See also: "info not by colors alone".
  • On second thought, the #2 can be split: 2a. see a group/map area, even when disjointed; and 2b. see distinction from different map color area. -DePiep (talk) 23:17, 4 January 2021 (UTC)[reply]

Other graphic topics

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