TeleResearchColourTest001 font

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William
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TeleResearchColourTest001 font

Post by William » Fri Sep 06, 2013 1:42 pm

Here is a colour font that I have produced using FontCreator 7.5.0 (build 512).
TeleResearchColourTest001.otf
(29.14 KiB) Downloaded 383 times
I have tested the font in monochrome in WordPad on the Windows xp system that I am using.

I do not at the time of writing have any facilities to test the font in colour outside of FontCreator 7.5.0 (build 512), though I have tested the font by opening it using FontCreator 7.5.0 (build 512) and previewing with the following text on both of a white background and a black background.

ab-1234cdefghijklmno590.678pqrstuvwxyz<

I would be interested to know what this font produces when used in Windows 8.1 in various packages please.

Can anyone get the glyph mapped at U+E421 to display with transparency in the layer that represents the glass please?



Other comments are also welcome.

William Overington

6 September 2013

William
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Re: TeleResearchColourTest001 font

Post by William » Mon Sep 09, 2013 6:52 am

The font includes several of the features mentioned in the following thread.

viewtopic.php?f=10&t=4519

The four data-summarising glyphs, green, yellow, orange, red are mapped to U+E400 U+E401 U+E402 U+E403 respectively.

U+E400 is Alt 58368
U+E401 is Alt 58369
U+E402 is Alt 58370
U+E403 is Alt 58371



The font also includes glyphs, no meaning specified, for magenta, blue, cyan, black and white at U+E404 through to U+E408 respectively.



The colour keypad is at U+E420

U+E420 is Alt 58400



The experimental on-screen colour keyboard is at U+E430

U+E430 is Alt 58416



----

At U+E421 is a picture that has several layers that are opaque and one layer that has the following palette colour.

R=192 G=224 B=255 A=64



In the picture the layer represents a large glass window panel at the entrance to an art gallery.

The glyph is intended as a test of the rendering of transparency in an application that is using the font. I have not been able to test the rendering of transparency in an application myself at the time of writing this note.

William Overington

9 September 2013

Erwin Denissen
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Re: TeleResearchColourTest001 font

Post by Erwin Denissen » Mon Sep 09, 2013 7:41 am

I've made some screenshots from within Internet Explorer 11 running on Windows 8.1 Preview:
TeleResearchColourTest001.png
TeleResearchColourTest001.png (20.13 KiB) Viewed 3706 times
0xE421.png
0xE421.png (2.39 KiB) Viewed 3706 times
Note: The Glyph Edit window will show transparency within multi-color glyphs soon.
Erwin Denissen
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Proven Font Technology

William
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Re: TeleResearchColourTest001 font

Post by William » Mon Sep 09, 2013 8:27 am

Thank you.

William

William
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Re: TeleResearchColourTest001 font

Post by William » Thu Sep 12, 2013 7:14 am

It appears that the way that the transparency works can be expressed as follows.

Suppose that the opaque colour below the partly transparent layer is expressed as a point in RGB space.

Suppose that the colour part of the partly transparent colour is expressed as a point in RGB space.

Then the displayed effect, using opaque display colours, of the partly transparent layer is to move the colour of the pixel below towards the colour of the partly transparent layer.

So, with U+E421 in the font, with the partly transparent layer having the following palette colour, the blue of the sky, the green of the grass, the brown of the tree trunk and the green of the tree leaves all moved towards that colour.

R=192 G=224 B=255 A=64

That explains why the tree trunk became lighter behind the glass.

Here is a new font, made today, with U+E422 added.

U+E422 is Alt 58402



The glyph at U+E422 is, apart from two changes, the same as the glyph at U+E421.

The changes are as follows.

The colour of the glass is now as follows.

R=0 G=0 B=0 A=64

I am thinking that this will move each of the four colours behind the glass towards black, though not black in a paint sense, more as a colourless colour.

The other change is that the lettering is now blue. This is simply to assist in easy identification of which glyph is which in a display.

Here is the font.
TeleResearchColourTest002.otf
(29.8 KiB) Downloaded 253 times
William Overington

12 September 2013

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