Re: Arrows as part of lines, argument for
hi, wouldn't it be nice to have fallbacks in RenderOps, lika a DrawArrowFunc, which would only be called, when set. Otherwise lines could be used. the same way you could think of other fallbacks, for recangles, lines, if there would be a DrawPointFunc, etc. this way you could implement a new renderer with only implementing a very basic set of functions, eg a line. i think this way it would be very easy, for example to write graphic format renderers. i was just thinking about it, when i started an xfig output renderer some time ago. cu, fabian -- fabian debusosz geva tel+49-241-9200211 weiern 171 fax +49-241-525294 d-52078 aachen email [EMAIL PROTECTED]
Re: Arrows as part of lines, argument for
On Wed, 9 May 2001, [EMAIL PROTECTED] wrote: hi, wouldn't it be nice to have fallbacks in RenderOps, lika a DrawArrowFunc, which would only be called, when set. Otherwise lines could be used. the same way you could think of other fallbacks, for recangles, lines, if there would be a DrawPointFunc, etc. this way you could implement a new renderer with only implementing a very basic set of functions, eg a line. Interesting idea -- have drawRectangle, drawPolyline etc fall back to drawLine could be useful. But for arrowheads, it would require a very different approach, since the arrow information is still separate from the line information. i think this way it would be very easy, for example to write graphic format renderers. That would help get a trivial renderer up. -Lars -- Lars Clausen (http://shasta.cs.uiuc.edu/~lrclause) | Hårdgrim of Numenor I do not agree with a word that you say, but I| Retainer of Sir Kegg will defend to the death your right to say it.| of Westfield --Evelyn Beatrice Hall paraphrasing Voltaire | Chaos Berserker of Khorne
Re: Arrows as part of lines, argument for
Lars Clausen [EMAIL PROTECTED] writes: Here's an argument for having the arrowhead be part of the line rather than slapped on top: When exporting to a format that has lines with arrows, you lose the arrowhead information, and the arrow becomes a set of lines that just happen to be at the end of the line. Another problem: An arrow does not end with a peak; it ends with a rectangle. Not good, because if you magnify the arrow (in your document), you see that the peak is missing. -Sebastian
