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qmk_firmware/keyboards/planck/keymaps/impossible
History
UnderSampled 9e6a493172 Fixed Impossible Layout readme tables (again) 8 years ago
..
Makefile First draft of the 'impossible' layout. 9 years ago
keymap.c Fixed Qwerty Fn layer to match documented design 8 years ago
readme.md Fixed Impossible Layout readme tables (again) 8 years ago

readme.md

The Impossible Layout

The Impossible Layout is named such because it manages to fit in both a numpad and an inverted-T arrow cluster into the same layer as the alpha keys.

Main layout

The Impossible Layout places the middle column of the alphas onto where the punctuation keys were, moving he most used punctuation to be accessed by the thumbs. Because removing the middle columns fits with the Workman layout's philosopy, Workman is used as the basis for the layout. This means the layout should be very easy to learn for Workman users, and reasonable for Colemak users. Other space gains are made by combining keys that are only ever chorded with other non symbol keys (with function-layer alternatives where needed).

Alpha-numeric layer
Q D R W B F U P J 7 8 9
A S H T G N E O I 4 5 6
Z X M C V L Y K Up 1 2 3
Alt/Tab Gui/Esc , CTL/Bsp Fn/Ent SFT/SPC . Left Down Right 0 Adj/Ent

Function layer
! @ # $ % ^ & * F12 F7 F8 F9
Tab [ ] - Del ' ( ) F11 F4 F5 F6
Menu = \ / PgUp F1 F2 F3
Alt/Tab Gui ~ CTL/Bsp Fn/Ent SFT/Spc ; Home PgDn End F10 Adj/Ent

Qwerty

The Qwerty layer, mostly intended for gaming use, makes use of the doubled chorded/non-symbolic keys to obtain use of the entire alpha-numeric typing area.

Qwerty layer
Gui/Esc 1 2 3 4 5 6 7 8 9 0 Bksp
Ctrl Q W E R T Y U I O P /
Shift A S D F G H J K L ; "
Alt/Tab Z X C V Fn/SPC B N M , . Adj/Ent

Qwerty Fn Layer
Gui F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 F11
Ctrl ~ [ PgUp ] - Up = F12
Shift Tab Home PgDn End Del Left Down Right
Alt/Tab Fn/Spc Menu Adj/Ent

Stenography

The Steno/Plover layer moves the number row below the regular keys, providing a much more comfortable placement for the thumb keys. Using this layout will require a slightly different dictionary to account for different keys being adjacent to the number row.

Steno Layer
S T P H * F P L T D
S K W R * R B G S Z
# # # # # # # # #
A O E U Adj/Ent

Adjustments and Options

In order to switch between layouts and change other keyboard settings, an adjustment layer is accessible from the same position over any layout.

Adjustment Layer
Insert PrtSc Pause RESET
CapLk Voice + Audio MIDIoff
ScrLk Voice - Music MIDI on
Numlk Workman Qwerty Plover Adj/Ent