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- Subject: Re: Changing Color Lookup Table in ODF
- Sent: 5/28/96 11:21 AM
- Received: 5/28/96 11:55 AM
- From: Mark Lanett, mlanett@meer.net
- Reply-To: ODF Interest, ODF-Interest@CILabs.ORG
- To: OpenDoc Development Framework Discussion List, ODF-Interest@CILabs.
-
- >At 10:30 PM 5/24/96, Serge Froment wrote:
- >>This is a major problem. I want my colors to show up even when I am
- >>embedded!
-
- There are lots of answers to this problem.
-
- First, you may know that the default Macintosh 8-bit color table contains a
- uniform 6x6x6 color cube (very common, also known as the Pantone 216 color
- table). If you choose colors whose components are from the set { 0x00,
- 0x33, 0x66, 0x99, 0xCC, 0xFF } then you will map directly into that cube.
- You can easily choose similar-but-not-the-same colors by varying only one
- component.
-
- Secondly, as all devoted readers of Edward Tufte know, color hue is not a
- good way to differentiate information. If you really depend on hue in your
- interface then you need to redesign it. Color value is much better, and
- fortunately, all you have to do is switch your monitor into grayscale mode
- to see how everything looks using only color value.
-
- > If you are copying pixmaps, you're probably limited to using ditherCopy
- >mode (which doesn't appear at first glance to be supported in ODF, probably
- >because Windows doesn't support it), which will approximate the colors by
-
- All platform-specific modes can be used. ODF only defines constants for the
- ones that work cross-platform; you can pass the platform values as well.
-
-
- Mark Lanett, ODF
-
-