wolfchart/README.md

# WolfChart v1.6
by Ballantyne de Wolf and Offspring Digital

This is professional optometrist/optician/ophthalmologist tool for measuring visual acuity. I cannot be used safely by the general public.
If you have any concerns about your vision or eyes, consult a qualified professional.

Now that's out of the way, the objectives are:
  1. Clinically relevant, scientifically supported visual acuity measurement in the widest possible range of clinical settings
  2. Open source with GNU licence
  3. Can be used on a wide variety of screen hardware
  3. Customisable optotypes and alphabets to come eg Hebrew, Chinese, Thai, Cyrillic etc
    
    
Ver1.6
 - subtense array now to 3 decimal places, enabling
 - improved scoring for Actual numerators - rounding previously made the numerator too complex and denominator different if using Actual vs Standard numerator
 - cleaned up some superfluous code lines in this area.
 - changed the Snellen R to try and make it more readable - in the field it was proving less readable than the other Snellens. Made the oblique stem more vertical.

Ver1.5
 - PWA version
 - new alphabet for Snellen BS4274.3 - less random

Ver1.4
 - various bug fixes
 - improved consistency of svg elements to use only filled paths and polygons, no strokes.
 - improved implementation of rgba to permit overlapping elements - opacity is now applied to the whole svg element, not its child elements
 - larger, more readable VA labels
 - shortcut keys validated as unique
 - scoreBox label element click/tap masks that line


Ver1.3
Added duochrome function with a shortcut key to be assigned in config form.
Help and very quick guide updated

Ver1.2
Help text updated

Expanded Sloan and Snellen optotypes.

New alphabets for 
  - BS4724.3
  - SnellenU
  - ETDRS
  - SloanU

Improved letter R in both Sloan and Snellen
  - ISSUE need to apply opacity to svg, not elements of svg, so that characters can have overlapping elements

Added text under HELP in guide-section:  "Very quick guide: Calibrate and configure your chart using this help guide. Click or tap on white space to scroll the chart up and down, or use the up and down arrows on your keyboard. Click or tap on any letter to mask it. Click it again to unmask."

Ver1.1
Supports 4 optotypes with an alphabet each. Help text needs some work.
Update README.md 2019-04-01 06:25:33 -04:00			`# WolfChart v1.6`
Create README.md First draft of readme 2017-01-25 02:22:04 -05:00			`by Ballantyne de Wolf and Offspring Digital`

Add files via upload 2019-04-01 06:24:46 -04:00			`This is professional optometrist/optician/ophthalmologist tool for measuring visual acuity. I cannot be used safely by the general public.`
Create README.md First draft of readme 2017-01-25 02:22:04 -05:00			`If you have any concerns about your vision or eyes, consult a qualified professional.`

			`Now that's out of the way, the objectives are:`
			`1. Clinically relevant, scientifically supported visual acuity measurement in the widest possible range of clinical settings`
			`2. Open source with GNU licence`
			`3. Can be used on a wide variety of screen hardware`
Add files via upload 2019-04-01 06:24:46 -04:00			`3. Customisable optotypes and alphabets to come eg Hebrew, Chinese, Thai, Cyrillic etc`


			`Ver1.6`
			`- subtense array now to 3 decimal places, enabling`
			`- improved scoring for Actual numerators - rounding previously made the numerator too complex and denominator different if using Actual vs Standard numerator`
			`- cleaned up some superfluous code lines in this area.`
			`- changed the Snellen R to try and make it more readable - in the field it was proving less readable than the other Snellens. Made the oblique stem more vertical.`
Update README.md 2018-02-02 18:55:44 -05:00
Add files via upload 2019-04-01 06:24:46 -04:00			`Ver1.5`
			`- PWA version`
			`- new alphabet for Snellen BS4274.3 - less random`
Update README.md 2018-02-02 18:55:44 -05:00
Update README.md See ver1.4 Also altered header 2017-02-10 21:23:00 -05:00			`Ver1.4`
			`- various bug fixes`
			`- improved consistency of svg elements to use only filled paths and polygons, no strokes.`
			`- improved implementation of rgba to permit overlapping elements - opacity is now applied to the whole svg element, not its child elements`
			`- larger, more readable VA labels`
Update README.md Two new updates from Trung clickable scoreBox shortcut keys validate as unique 2017-03-07 23:16:41 -05:00			`- shortcut keys validated as unique`
			`- scoreBox label element click/tap masks that line`
Update README.md 2017-02-17 00:19:34 -05:00
Update README.md See ver1.4 Also altered header 2017-02-10 21:23:00 -05:00
Update README.md ver 1.3 updates 2017-01-30 19:54:57 -05:00			`Ver1.3`
			`Added duochrome function with a shortcut key to be assigned in config form.`
			`Help and very quick guide updated`
Update README.md formatting ver1.2 2017-01-29 05:36:51 -05:00
Update README.md ver 1.3 updates 2017-01-30 19:54:57 -05:00			`Ver1.2`
Update README.md 2017-01-29 05:22:39 -05:00			`Help text updated`
Update README.md formatting ver1.2 2017-01-29 05:36:51 -05:00
Update README.md 2017-01-29 05:22:39 -05:00			`Expanded Sloan and Snellen optotypes.`
Update README.md formatting ver1.2 2017-01-29 05:36:51 -05:00
Update README.md 2017-01-29 05:22:39 -05:00			`New alphabets for`
			`- BS4724.3`
			`- SnellenU`
			`- ETDRS`
			`- SloanU`
Update README.md formatting ver1.2 2017-01-29 05:36:51 -05:00
Update README.md 2017-01-29 05:22:39 -05:00			`Improved letter R in both Sloan and Snellen`
			`- ISSUE need to apply opacity to svg, not elements of svg, so that characters can have overlapping elements`
Update README.md formatting ver1.2 2017-01-29 05:36:51 -05:00
Update README.md 2017-01-29 05:22:39 -05:00			`Added text under HELP in guide-section: "Very quick guide: Calibrate and configure your chart using this help guide. Click or tap on white space to scroll the chart up and down, or use the up and down arrows on your keyboard. Click or tap on any letter to mask it. Click it again to unmask."`

Create README.md First draft of readme 2017-01-25 02:22:04 -05:00			`Ver1.1`
			`Supports 4 optotypes with an alphabet each. Help text needs some work.`