comp.lang.idl-pvwave archive
Messages from Usenet group comp.lang.idl-pvwave, compiled by Paulo Penteado
Home » Public Forums » archive » high quality 'old' direct graphics
Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend  		Return to the default flat view Create a new topic Submit Reply
Re: high quality 'old' direct graphics [message #73765 is a reply to message #73736] Mon, 29 November 2010 13:25 Go to previous messageGo to previous message
Mark[1] is currently offline  Mark[1]
Messages: 66
Registered: February 2008
Member
On Nov 26, 1:26 pm, Paulo Penteado <pp.pente...@gmail.com> wrote:
> On Nov 25, 9:28 pm, Mark <mark.h...@gmail.com> wrote:
>
>> New Graphics? Get outta here! A while back, I tried a plot with 40
>> line-plot objects and it took forever to display. With 10,000 I'd be
>> waiting weeks.
>
> I am surprised it was fast with OG. I expected it to be about the
> same, since the backend of both iTools and NG is OG. There is a little
> more overhead in NG, but I did not expect it to be so different from
> OG.

I think the glacial performance of NG in this sort of case (and I
confess I haven't looked into it at all thoroughly) is that every time
you add something, NG thinks very hard about how to modify the plot to
accommodate it. (The Matlab graphics system has the same problem for
complicated plots, for much the same reason, I suspect.)

The OG system itself is pretty snappy with line plots up to 10^5 or
10^6 points in length, surface plots up to 10^3 x 10^3. Not much
slower than DG.

Report message to a moderator

[Message index]
 
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: Notable Coyote Program Updates
Next Topic: Sparse LABEL_REGION

-=] Back to Top [=-
[ Syndicate this forum (XML) ] [ RSS ] [ PDF ]

Current Time: Fri Oct 10 08:24:15 PDT 2025

Total time taken to generate the page: 1.20135 seconds
.:: Contact :: Home ::.

Powered by: FUDforum 3.0.7.
Copyright ©2001-2013 FUDforum Bulletin Board Software