Thanks, Bill, for this fast answer.

I know a way to display an ellipse with any color, since it is a full line.
I have only to write a .tdf with two lines for type:
first line:
type 7
second line
sCxxxyyy, for example sCooffoo if I want a pure green color.
The drawn ellipse will be scaled in compliance with major and minor axes, if the given catalog gives such data.
Through that way, I can set a type of galaxies with a different color from the one chosen in the Data Shown box.
But the purpose of my question was different. Several catalogs of dark nebulae can be set by ellipses with extrafiles. For example Dutra dust clouds, or the Dobashi, or also the MSX infrared dark clouds, just released in Vizier. All these catalogues include many numerous objects and as you can expect, this is rather confusing to have on the screen a lot of ellipses in full line, galaxies and dust clouds, which are basically differents DSO types.
It is a bit annoying that there isn't a way to solve the problem.

Bertrand

----- Original Message -----
From: Bill J Gray
To: guide-user@yahoogroups.com
Sent: Sunday, June 17, 2007 8:30 PM
Subject: Re: [guide-user] drawing of ellipses through .tdf


Hi Bertrand,

Unfortunately, I don't see a way to do that.

When you select object type 7, Guide assumes the object is to be
drawn as a galaxy, using whatever color has been set for galaxies in
the Data Shown box, with a solid line. You _can_ do something such
as

C00ff00;s2;e0,0,32;

This would cause Guide to set a pure-green color, with a dashed
line style, and to draw a circle centered on the object of radius
32 units. But it would be a _circle_, not an ellipse, and wouldn't
be scaled to the object's size (and obviously, being a circle, it
would not be rotated to the object's orientation.)

I can see that there might be cases, though, where one would
like to define a "galaxy symbol" that wouldn't simply track the symbol
used everywhere else for galaxies... for example, if you had a
separate dataset of galaxies that were "special" in some way. I
don't see a way to do it right off, but will keep the idea in mind.

-- Bill





------------------------------------------------------------------------------


No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.5.472 / Virus Database: 269.9.0/852 - Release Date: 17/06/2007 08:23


[Non-text portions of this message have been removed]