As all the ARP objects are galaxies you should amend your ARP external file definition to assign the object type as 'galaxy'. There's a special code; 'GALXY' if I recall correctly but I may be wrong.
The v3 symbol set (no, it's not user-configurable) is similar to that used in SA 2000 and in Uranometria, with a passing nod to Megastar. Crosses are used as a general catch-all class when the source data lists it as 'unknown', 'plate defect', 'non-existent' etc. Circles denote clusters of stars, either asterisms, open clusters/globulars and galaxy clusters. Squares/rectangles denote gaseous nebulae (bright and dark). Ellipses are always galaxies. A small circle with a horizontal line through it (I actually intended it to resemble Saturn) denote planetary nebulae. Symbols are *directly* associated with catalogue object type. Ideally of course, the object type symbol sets should be user-configurable, but reproducing the same symbol set as a copyrighted source elsewhere (eg, Herald-Bobroth) opens the door to some tricky IP issues. And designing a unique symbol set when most observers are quite happy with Uranometria etc, isn't easy. Regards Peter -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of chrisiia Sent: 16 August 2010 17:25 To: [email protected] Subject: [skychart-discussion] How to change the symbol of an objet visible on the skychart ? Hi all I am using externals datas, especially for galaxies. I added the ARP catalogue and the visible symbol on the chart is a little green cross, but it's the same cross used for other datas, example IC catalogue. Is it possible to change a symbol associated with a catalogue ? Example a little circle, or a little square, or a large cross ... etc.. Thanks by advance Christian ------------------------------------ Yahoo! Groups Links
