displaying long/lat lines tutorial or help wanted

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ncc1701d
Posts: 29
Joined: 21.01.2006
With us: 18 years 10 months

displaying long/lat lines tutorial or help wanted

Post #1by ncc1701d » 28.12.2009, 00:44

Sorry if this has been talked about already.
Where can i find tutorial or help on the new freature listed for 1.6 that allows you to display longitude and latitude lines on top of a a planet?
thanks

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selden
Developer
Posts: 10192
Joined: 04.09.2002
With us: 22 years 2 months
Location: NY, USA

Re: displaying long/lat lines tutorial or help wanted

Post #2by selden » 28.12.2009, 13:15

Unfortunately, I don't think Frank has updated the Users Guide on the MotherLode yet.

The new long/lat grid (and some other new options) are available in the right-mouse-button popup context menu.

In other words, click on the body of interest using the right-most mouse button.
(I think that's Ctrl-click with a one-button Mac mouse. If that's what you have, you should consider getting a cheap 3-button wheel mouse. They work fine on a Mac.)

In the popup menu
select Reference Vectors
select Planetographic Grid
Selden

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fsgregs
Posts: 1307
Joined: 07.10.2002
With us: 22 years 1 month
Location: Manassas, VA

Re: displaying long/lat lines tutorial or help wanted

Post #3by fsgregs » 23.01.2010, 05:05

The new Planetographic grid in Celestia 160 that is accessible with a right-click, is a nice grid but it has a lot of lines, and they are bright. It also does not include the Tropics of Cancer or Capricorn, or the Arctic or Antarctic circles. There is a simpler grid that is available as a free download, that displays a bit dimmer and does include the Tropic and Circle labels. You can get it from the Celestia motherlode addon site here: http://www.celestiamotherlode.net/creators/fsgregs/Lat-Long_grid.zip

Unzip it, put it into your extras folder, and to access it, open Celestia, right-click on Earth, choose "Alternate Surfaces", and choose "Grid Overlay".

After use, be sure to choose Alternate Surfaces again and choose "Normal", to return your normal Earth view.

Regards

Frank


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