On Wednesday, April 24, 2013 9:44:47 AM UTC-4, LRN wrote:
>
>
> On Tuesday, April 23, 2013 6:15:00 PM UTC+4, kcrisman wrote:
>>
>>
>>
>> On Tuesday, April 23, 2013 6:15:23 AM UTC-4, LRN wrote:
>>>
>>> -----BEGIN PGP SIGNED MESSAGE----- 
>>> Hash: SHA1 
>>>
>>> I've attached a sample tex file. 
>>>
>>>
>> You are totally cutting-edge!  But remember, even with imagemagick, "This 
>> option is not intended to produce good graphics, but to allow you to see 
>> your graphics when you use latex and DVI files while writing your 
>> document." (http://cdn.bitbucket.org/ddrake/sagetex/downloads/sagetex.pdf
>> )
>>
>> Apparently SageTeX ignores most of the options, even the viewer='tachyon' 
>> one.   But note that later on in the manual it says "you can always do 
>> things manually".  This seems to work for me - looks ok, see attached png.
>>
>> \begin{sagesilent}
>> u, v = var('u,v')
>> fx = (3+sin(v)+cos(u))*cos(2*v)
>> fy = (3+sin(v)+cos(u))*sin(2*v)
>> fz = sin(u)+2*cos(v)
>> x = parametric_plot3d([fx, fy, fz], (u, 0, 2*pi), (v, 0, 
>> 2*pi),frame=False,dpi=300,viewer='tachyon')
>> x.save(filename='ClassNotesPics/myspecialfile.png')
>> \end{sagesilent}
>>
>> This 3d plot looks okay:
>>
>> \begin{center}
>> \includegraphics[scale=.4]{ClassNotesPics/myspecialfile.png}
>> \end{center}
>>
>>
>> OK, i'll use the manual mode (save into png -> includegraphics).
> That said, i've noticed that you're using [scale=.4]. How would it look 
> without scale=.4? The point is that DPI info should allow typesetter to 
> guess image size correctly, and it should look OK without scaling. Or not. 
> After all, default image resolution does not seem to have any relation to 
> dpi=..., so high dpi means "scale down", while low dpi means "scale up", 
> but increasing/decreasing resolution (using figsize) will throw that 
> scaling off...Damn. OK, so the right way is to specify dpi that is high 
> enough for "printing" (that would be 300), then increase image resolution 
> with figsize until the image is large enough. Right?
>

That I do not know.  I only put the scale in there because I copied from 
something else in one of my files.   I nearly always have to scale down 
from images I find to put them in class notes or other documents. 

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