HSL to RGB? - Visual Basic .NET

PJ6

I have a color I need to convert to RGB from HSL
(hue/saturation/luminosity).

Can't find anything built in. Anyone know how it's done?

TIA,
Paul

Nov 21 '05 #1

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12148

Siva M

Check out Bob Powell's article: http://www.bobpowell.net/RGBHSB.htm

"PJ6" <no****@nowhere.net> wrote in message
news:Og**************@TK2MSFTNGP10.phx.gbl...
I have a color I need to convert to RGB from HSL
(hue/saturation/luminosity).

Can't find anything built in. Anyone know how it's done?

TIA,
Paul

Nov 21 '05 #2

PJ6

Surprised there's nothing built in to the Framework for that.

I got his code to work after I realized I needed to divide everything by
255.

Thanks,
Paul

"Siva M" <sh******@online.excite.com> wrote in message
news:Og**************@tk2msftngp13.phx.gbl...

Check out Bob Powell's article: http://www.bobpowell.net/RGBHSB.htm

"PJ6" <no****@nowhere.net> wrote in message
news:Og**************@TK2MSFTNGP10.phx.gbl...
I have a color I need to convert to RGB from HSL
(hue/saturation/luminosity).

Can't find anything built in. Anyone know how it's done?

TIA,
Paul

Nov 21 '05 #3

Bob Powell [MVP]

The convention in notation for such colour spaces is to define the range
between 0 and 1 using floats or doubles to provide the fractions.

RGB is often described in this way too in "real" graphics systems such as
OpenGL or other 2D / 3D rendering systems. GDI+ has a lot of GDI's legacy
oddness about it.

--
Bob Powell [MVP]
Visual C#, System.Drawing

Ramuseco Limited .NET consulting
http://www.ramuseco.com

Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/faqmain.htm

All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.

"PJ6" <no****@nowhere.net> wrote in message
news:ej**************@TK2MSFTNGP12.phx.gbl...

Surprised there's nothing built in to the Framework for that.

I got his code to work after I realized I needed to divide everything by
255.

Thanks,
Paul

"Siva M" <sh******@online.excite.com> wrote in message
news:Og**************@tk2msftngp13.phx.gbl...
Check out Bob Powell's article: http://www.bobpowell.net/RGBHSB.htm

"PJ6" <no****@nowhere.net> wrote in message
news:Og**************@TK2MSFTNGP10.phx.gbl...
I have a color I need to convert to RGB from HSL
(hue/saturation/luminosity).

Can't find anything built in. Anyone know how it's done?

TIA,
Paul

Nov 21 '05 #4

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