comp.lang.idl-pvwave archive: archive » starting point of dashed lines

Home » Public Forums » archive » starting point of dashed lines

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

starting point of dashed lines [message #65737]

Sun, 22 March 2009 09:28

Jeremy Bailin
Messages: 618
Registered: April 2008

Senior Member

Any sort of dashed and/or dotted linestyle (i.e. anything other than
linetsyle=0) has some natural "starting point" or phase. Is there a
way to manually reset it?

My specific problem is that I'm generating some plots in .png files
that are going to be stuck together as an animation, including a
dashed line that should be identical in each plot. However, it isn't -
at least, not when plotted to the Z buffer! Here is some code that
demonstrates this:

set_plot, 'z'
plot, [0,1], [-0.5,0.5]
erase
oplot, [0,1], [0,0], lines=2
write_png, 'test1.png', tvrd()
erase
oplot, [0,1], [0,0], lines=2
write_png, 'test2.png', tvrd()

If you compare the two .png files, you'll see that the dashing is
shifted slightly. However, if I do this with set_plot,'x' instead, it
works fine!

-Jeremy.

Report message to a moderator

[Message index]

		starting point of dashed lines By: Jeremy Bailin on Sun, 22 March 2009 09:28
		Re: starting point of dashed lines By: Jeremy Bailin on Tue, 24 March 2009 06:18

Previous Topic:	Re: Symsize doesn't seem to work?
Next Topic:	Re: should max nuke the 2nd argument

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Oct 08 19:34:16 PDT 2025

Total time taken to generate the page: 0.00444 seconds