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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>John,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I wish I could get a copy of the tin…….
I am not the only one who feels that VTK is underutilised because there isn’t
enough documentation. I have the VTK book, but you simply won’t get that
kind of detail in it (go on – make me out to be foolish by citing the page….).
Even in the online documentation there is only a cryptic indication of what the
relationship between ClampingOn and Scaling (everything is obvious in
retrospect). The route that the method names etc. indicate for toggling between
direction only and magnitude representation is the one I originally took. You have
to admit that it would take a deeper knowledge to figure out your (John Biddiscombe’s)
elegant solution. Now, I have encountered before the attitude that “nothing
comes for free” and “you have to make the effort” – it is
almost “you have to pay your dues” philosophy. However, that leads
to a lot of replication of effort. The users group is good and sometimes one
can be successful in getting a solution (as I have just experienced) –
but not always (or even 50% of the time). <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>If there was somewhere to (easily) post the
type of code I just wrote (the three lines in my last e-mail) under the topic
area of vtkGlyph3D with the heading “Direction only vectors” or a
number of indicative titles that would allow an easy search – it would help
us get mileage out of all our efforts. This, of course, goes to “who
organises it- on what site?” and then gets into the area of Kitware’s
business model. I would pay a few hundred dollars for a license for VTK to have
such a service. I am a middle level user (perhaps an overstatement of my
knowledge and ability) which means I am between the level whereby I can justify
(need to) paying $1000s for support (or development) or smart guys who have a
very in-depth knowledge (and thus need almost no support).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>There is a wide range of level of user and
VTK would be even more successful if it was better documented so that medium
level users (such as I might be) can use what is in the tin to its full
potential.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Jim<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
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<div>
<p class=MsoNormal><b><font size=3 color=navy face=Arial><span lang=FR
style='font-size:12.0pt;font-family:Arial;color:navy;font-weight:bold'>James C
Robinson</span></font></b><b><font size=2 color=navy face=Arial><span lang=FR
style='font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold'>, </span></font></b><b><font
color=navy><span lang=FR style='color:navy;font-weight:bold'><o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=3 color=navy face=Wingdings><span
style='font-size:12.0pt;font-family:Wingdings;color:navy;font-weight:bold'>+</span></font></b><b><font
color=navy><span lang=FR style='color:navy;font-weight:bold'> 42
Rivergrove</span></font></b><b><font size=2 color=navy face=Arial><span
lang=FR style='font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold'>,</span></font></b><b><font
color=navy><span lang=FR style='color:navy;font-weight:bold'><o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=2 color=navy face=Arial><span lang=FR
style='font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold'>
</span></font></b><b><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-weight:bold'><ns0:City w:insAuthor="Jim"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:place w:insAuthor="Jim"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:City w:insAuthor="Jim"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:place w:insAuthor="Jim"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-04-22T10:48:00Z"><font color=navy><span lang=FR
style='color:navy'>Glanmire</span></font></ns0:place></ns0:City></ns0:place></ns0:City></span></font></b><b><font
size=2 color=navy face=Arial><span lang=FR style='font-size:10.0pt;font-family:
Arial;color:navy;font-weight:bold'>,</span></font></b><b><font color=navy><span
lang=FR style='color:navy;font-weight:bold'><o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=2 color=navy face=Arial><span lang=FR
style='font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold'>
</span></font></b><b><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy;font-weight:bold'>Co. </span></font></b><b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial;font-weight:
bold'><ns0:City w:insAuthor="Jim" w:insDate="2005-04-22T10:48:00Z"
w:endInsAuthor="Jim" w:endInsDate="2005-04-22T10:48:00Z"><ns0:place
w:insAuthor="Jim" w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:City w:insAuthor="Jim"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:place w:insAuthor="Jim"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-04-22T10:48:00Z"><st1:City w:st="on"><st1:place w:st="on"><font
color=navy><span style='color:navy'>Cork</span></font></st1:place></st1:City></ns0:place></ns0:City></ns0:place></ns0:City><font
color=navy><span style='color:navy'>,</span></font></span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold'>
</span></font></b><b><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial;font-weight:bold'><ns0:place w:insAuthor="Jim"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:place w:insAuthor="Jim"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-04-22T10:48:00Z"><st1:place w:st="on"><font color=navy><span
style='color:navy'>Eire</span></font></st1:place></ns0:place></ns0:place></span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=3 color=navy face="Wingdings 2"><span
style='font-size:12.0pt;font-family:"Wingdings 2";color:navy;font-weight:bold'>'</span></font></b><b><font
color=navy face=Arial><span style='font-family:Arial;color:navy;font-weight:
bold'> +353 21 4822028</span></font><font
color=navy><span style='color:navy'><o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy;font-weight:bold'>
+353 87 2393010<o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=3 color=navy face=Wingdings><span
style='font-size:12.0pt;font-family:Wingdings;color:navy;font-weight:bold'>-</span></font></b><b><font
color=navy face=Arial><span style='font-family:Arial;color:navy;font-weight:
bold'> </span></font><ns0:PersonName w:insAuthor="Jim"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:PersonName w:insAuthor="Jim"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Jim"
w:endInsDate="2005-04-22T10:48:00Z"></ns0:PersonName><font color=blue><span
style='color:blue'><a href="mailto:jrobinson@eircom.net">jrobinson@eircom.net<font
color=black><span style='color:windowtext;text-decoration:none'></ns0:PersonName></span></font><font
color=black><span style='color:windowtext;text-decoration:none'>></span></font></a></span></font><font
color=navy face=Arial><span style='font-family:Arial;color:navy'> </span></font><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy;font-weight:normal'><o:p></o:p></span></font></b></p>
</div>
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<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span lang=EN-US style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
John Platt [mailto:jcplatt@lineone.net] <br>
<b><span style='font-weight:bold'>Sent:</span></b> 22 April 2005 09:08<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">j.robinson@kepler-systems.com</st1:PersonName><br>
<b><span style='font-weight:bold'>Cc:</span></b> vtkusers@vtk.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [vtkusers] Scaling
glyphs[Scanned]</span></font><span lang=EN-US><o:p></o:p></span></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>Hi Jim,</span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>Flattery will get you
everywhere </span></font><font size=2 color=navy face=Wingdings><span
lang=EN-US style='font-size:10.0pt;font-family:Wingdings;color:navy'>J</span></font><font
size=2 color=navy face=Arial><span lang=EN-US style='font-size:10.0pt;
font-family:Arial;color:navy'> but credit to John Biddiscombe –
vtkGlyph3D does just what it says on the tin!</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'>John.</span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-US
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 face=Tahoma><span
lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>-----Original
Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> James C Robinson [mailto:<st1:PersonName
w:st="on">j.robinson@kepler-systems.com</st1:PersonName>] <br>
<b><span style='font-weight:bold'>Sent:</span></b> 21 April 2005 17:15<br>
<b><span style='font-weight:bold'>To:</span></b> 'John Platt'<br>
<b><span style='font-weight:bold'>Cc:</span></b> <st1:PersonName w:st="on">Vtk
Users</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [vtkusers] Scaling
glyphs[Scanned]</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span lang=EN-US style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'>John,</span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'>Many
thanks for your reply. Your solution will work (I think). I have made a crude
test and it behaves as desired. The subtlety is that, when one wants an
application that allows the toggling between two representations of a vector
field (scaled according to magnitude or not) the simple way is to turn </span></font><font
size=2 color=navy face=Arial><span lang=EN-US style='font-size:10.0pt;
font-family:Arial;color:navy'>SetScaleModeToDataScalingOff). However, this
leads to the behaviour that wanted to avoid (source points outside the field being
represented). Using your approach means effectively that we leave the
SetScaleModeToDataScalingOn and when we want an orientation only representation
we set the clamping range to be very tiny (say SetRange(0.0,minimum value). In
this way all 0.0 magnitude vectors are not represented and any others are shown
the same size.</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'>I hope this clarifies the clarification further. Again many thanks.
It is not necessary to always no the answer, but it really helps to know a
man/woman who does….</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'>Jim</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font><span
lang=EN-US><o:p></o:p></span></p>
<div>
<div>
<div>
<div>
<p class=MsoNormal style='margin-left:36.0pt'><b><font size=3 color=navy
face=Arial><span lang=FR style='font-size:12.0pt;font-family:Arial;color:navy;
font-weight:bold'>James C Robinson</span></font></b><b><font size=2 color=navy
face=Arial><span lang=FR style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:bold'>, </span></font></b><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><b><font size=3 color=navy
face=Wingdings><span style='font-size:12.0pt;font-family:Wingdings;color:navy;
font-weight:bold'>+</span></font></b><b><font color=navy><span lang=FR
style='color:navy;font-weight:bold'> 42 Rivergrove</span></font></b><b><font
size=2 color=navy face=Arial><span lang=FR style='font-size:10.0pt;font-family:
Arial;color:navy;font-weight:bold'>,</span></font></b><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><b><font size=2 color=navy
face=Arial><span lang=FR style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:bold'> </span></font></b><b><font
size=2 face=Arial><span lang=FR style='font-size:10.0pt;font-family:Arial;
font-weight:bold'><ns0:City w:insAuthor="Unknown" w:insDate="2005-04-22T10:48:00Z"
w:endInsAuthor="Unknown" w:endInsDate="2005-04-22T10:48:00Z"><ns0:place
w:insAuthor="Unknown" w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:City w:insAuthor="Unknown"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:place w:insAuthor="Unknown"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><font color=navy><span
style='color:navy'>Glanmire</span></font></ns0:place></ns0:City></ns0:place></ns0:City><font
color=navy><span style='color:navy'>,</span></font></span></font></b><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><b><font size=2 color=navy
face=Arial><span lang=FR style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:bold'> </span></font></b><b><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy;font-weight:bold'>Co. </span></font></b><b><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial;font-weight:bold'><ns0:City
w:insAuthor="Unknown" w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:place w:insAuthor="Unknown"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:City w:insAuthor="Unknown"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:place w:insAuthor="Unknown"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><st1:City w:st="on"><st1:place w:st="on"><font
color=navy><span style='color:navy'>Cork</span></font></st1:place></st1:City></ns0:place></ns0:City></ns0:place></ns0:City><font
color=navy><span style='color:navy'>,</span></font></span></font></b><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><b><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:bold'> </span></font></b><b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial;font-weight:
bold'><ns0:place w:insAuthor="Unknown" w:insDate="2005-04-22T10:48:00Z"
w:endInsAuthor="Unknown" w:endInsDate="2005-04-22T10:48:00Z"><ns0:place
w:insAuthor="Unknown" w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><st1:place w:st="on"><font color=navy><span
style='color:navy'>Eire</span></font></st1:place></ns0:place></ns0:place></span></font></b><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><b><font size=3 color=navy
face="Wingdings 2"><span style='font-size:12.0pt;font-family:"Wingdings 2";
color:navy;font-weight:bold'>'</span></font></b><b><font color=navy face=Arial><span
style='font-family:Arial;color:navy;font-weight:bold'>
+353 21 4822028</span></font></b><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><b><font size=3 color=navy
face="Times New Roman"><span style='font-size:12.0pt;color:navy;font-weight:
bold'> +353 87 2393010</span></font></b><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><b><font size=3 color=navy
face=Wingdings><span style='font-size:12.0pt;font-family:Wingdings;color:navy;
font-weight:bold'>-</span></font></b><b><font color=navy face=Arial><span
style='font-family:Arial;color:navy;font-weight:bold'> </span></font></b><span
lang=EN-US><ns0:PersonName w:insAuthor="Unknown" w:insDate="2005-04-22T10:48:00Z"
w:endInsAuthor="Unknown" w:endInsDate="2005-04-22T10:48:00Z"><ns0:PersonName
w:insAuthor="Unknown" w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"></ns0:PersonName></ns0:PersonName></span><b><font
color=blue><span style='color:blue;font-weight:bold'><a
href="mailto:jrobinson@eircom.net">jrobinson@eircom.net<font color=black><span
style='color:windowtext;text-decoration:none'>></span></font></a></span></font></b><b><font
color=navy face=Arial><span style='font-family:Arial;color:navy;font-weight:
bold'> </span></font></b><span lang=EN-US><o:p></o:p></span></p>
</div>
</div>
</div>
<div>
<div style='margin-left:36.0pt'>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span lang=EN-US style='font-size:12.0pt'>
<hr size=2 width="100%" align=center>
</span></font></div>
</div>
<p class=MsoNormal style='margin-left:36.0pt'><b><font size=2 face=Tahoma><span
lang=EN-US style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
John Platt [mailto:jcplatt@lineone.net] <br>
<b><span style='font-weight:bold'>Sent:</span></b> 20 April 2005 20:56<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">j.robinson@kepler-systems.com</st1:PersonName><br>
<b><span style='font-weight:bold'>Cc:</span></b> vtkusers@vtk.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [vtkusers] Scaling
glyphs[Scanned]</span></font><span lang=EN-US><o:p></o:p></span></p>
</div>
<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'> </span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'>Hi Jim,</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'>Have you tried ClampingOn() with ScalingOn(). Data scales outside
the clamp range are reset to the range end points. The data scale is then
normalized to the range 0 – 1. All glyphs with a data scale less than the
lower clamp range are therefore mapped to zero. Provided data scaling is on
(SetScaleModeToDataScalingOn()), the composite scale factor,
DataScale*ScaleFactor will also be zero.</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'>HTH</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'>John.</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=navy
face=Arial><span lang=EN-US style='font-size:10.0pt;font-family:Arial;
color:navy'> </span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><font size=2 face=Tahoma><span
lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>-----Original
Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> vtkusers-bounces@vtk.org
[mailto:vtkusers-bounces@vtk.org] <b><span style='font-weight:bold'>On Behalf
Of </span></b>James C Robinson<br>
<b><span style='font-weight:bold'>Sent:</span></b> 20 April 2005 13:46<br>
<b><span style='font-weight:bold'>To:</span></b> Administrator<br>
<b><span style='font-weight:bold'>Cc:</span></b> jcplatt@lineone.net<br>
<b><span style='font-weight:bold'>Subject:</span></b> [vtkusers] Scaling
glyphs[Scanned]</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><font size=3
face="Times New Roman"><span lang=EN-US style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:72.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Dear all,</span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>I am producing a set of glyphs using
a vtkPlaneSource as the data points. It works perfectly – when I
have scaling on, the glyphs behave appropriately. However, when I turn scaling
off (whowing vector direction only) there are glyphs placed even at points (on
the vtkPlaneSource) that are outside the body (therefore magnitude is
implicitly zero).</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>I can Could anybody tell me if it is
possible to have the glyphs eliminated at points that are outside the field (or
where the magnitude is zero – or less than some threshold)?</span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Regards,</span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Jim</span></font><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'> </span></font><span
lang=EN-US><o:p></o:p></span></p>
<div>
<div>
<div>
<p class=MsoNormal style='margin-left:72.0pt'><b><font size=3 color=navy
face=Arial><span lang=FR style='font-size:12.0pt;font-family:Arial;color:navy;
font-weight:bold'>James C Robinson</span></font></b><b><font size=2 color=navy
face=Arial><span lang=FR style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:bold'>, </span></font></b><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><b><font size=3 color=navy
face=Wingdings><span style='font-size:12.0pt;font-family:Wingdings;color:navy;
font-weight:bold'>+</span></font></b><b><font color=navy><span lang=FR
style='color:navy;font-weight:bold'> 42 Rivergrove</span></font></b><b><font
size=2 color=navy face=Arial><span lang=FR style='font-size:10.0pt;font-family:
Arial;color:navy;font-weight:bold'>,</span></font></b><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><b><font size=2 color=navy
face=Arial><span lang=FR style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:bold'> </span></font></b><b><font
size=2 face=Arial><span lang=FR style='font-size:10.0pt;font-family:Arial;
font-weight:bold'><ns0:City w:insAuthor="Unknown" w:insDate="2005-04-22T10:48:00Z"
w:endInsAuthor="Unknown" w:endInsDate="2005-04-22T10:48:00Z"><ns0:place
w:insAuthor="Unknown" w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:City w:insAuthor="Unknown"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:place w:insAuthor="Unknown"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><font color=navy><span
style='color:navy'>Glanmire</span></font></ns0:place></ns0:City></ns0:place></ns0:City><font
color=navy><span style='color:navy'>,</span></font></span></font></b><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><b><font size=2 color=navy
face=Arial><span lang=FR style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:bold'> </span></font></b><b><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy;font-weight:bold'>Co. </span></font></b><b><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial;font-weight:bold'><ns0:City
w:insAuthor="Unknown" w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:place w:insAuthor="Unknown"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:City w:insAuthor="Unknown"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><ns0:place w:insAuthor="Unknown"
w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><st1:City w:st="on"><st1:place w:st="on"><font
color=navy><span style='color:navy'>Cork</span></font></st1:place></st1:City></ns0:place></ns0:City></ns0:place></ns0:City><font
color=navy><span style='color:navy'>,</span></font></span></font></b><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><b><font size=2 color=navy
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:navy;
font-weight:bold'> </span></font></b><b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial;font-weight:
bold'><ns0:place w:insAuthor="Unknown" w:insDate="2005-04-22T10:48:00Z"
w:endInsAuthor="Unknown" w:endInsDate="2005-04-22T10:48:00Z"><ns0:place
w:insAuthor="Unknown" w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"><st1:place w:st="on"><font color=navy><span
style='color:navy'>Eire</span></font></st1:place></ns0:place></ns0:place></span></font></b><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><b><font size=3 color=navy
face="Wingdings 2"><span style='font-size:12.0pt;font-family:"Wingdings 2";
color:navy;font-weight:bold'>'</span></font></b><b><font color=navy face=Arial><span
style='font-family:Arial;color:navy;font-weight:bold'>
+353 21 4822028</span></font></b><span lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><b><font size=3 color=navy
face="Times New Roman"><span style='font-size:12.0pt;color:navy;font-weight:
bold'> +353 87 2393010</span></font></b><span
lang=EN-US><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:72.0pt'><b><font size=3 color=navy
face=Wingdings><span style='font-size:12.0pt;font-family:Wingdings;color:navy;
font-weight:bold'>-</span></font></b><b><font color=navy face=Arial><span
style='font-family:Arial;color:navy;font-weight:bold'> </span></font></b><span
lang=EN-US><ns0:PersonName w:insAuthor="Unknown" w:insDate="2005-04-22T10:48:00Z"
w:endInsAuthor="Unknown" w:endInsDate="2005-04-22T10:48:00Z"><ns0:PersonName
w:insAuthor="Unknown" w:insDate="2005-04-22T10:48:00Z" w:endInsAuthor="Unknown"
w:endInsDate="2005-04-22T10:48:00Z"></ns0:PersonName></ns0:PersonName></span><b><font
color=blue><span style='color:blue;font-weight:bold'><a
href="mailto:jrobinson@eircom.net">jrobinson@eircom.net<font color=black><span
style='color:windowtext;text-decoration:none'>></span></font></a></span></font></b><b><font
color=navy face=Arial><span style='font-family:Arial;color:navy;font-weight:
bold'> </span></font></b><span lang=EN-US><o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal style='margin-left:72.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'> </span></font><span
lang=EN-US><o:p></o:p></span></p>
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