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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hello,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'>I have a set of points I’d
like to visualize with glyphs but glyphs don’t seem to scale at all. I read
in point’s vector components into a float array (eigenVector_1) and corresponding
magnitude data into another float array (eigenValue_1).<span
style='mso-spacerun:yes'> </span>Since magnitude information is stored in
a separate array as scalars, I would like to use <span class=SpellE><span
class=GramE>SetScaleModeToScaleByScalar</span></span><span class=GramE>(</span>)
to scale glyphs but all glyphs are exactly the same shape and are directed in the
same direction.<span style='mso-spacerun:yes'> </span>I am wondering if something
I’m doing is wrong here.<span style='mso-spacerun:yes'>
</span>Could someone give me an insight?<span style='mso-spacerun:yes'>
</span>Thank you!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'><o:p> </o:p></span></font></p>
<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>vtkPolyData</span></font></span></span><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'> *points = reader-><span class=SpellE>GetOutput</span>();<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 color=blue face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";color:blue;mso-fareast-language:
JA'>const</span></font></span><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";mso-fareast-language:JA'> <font
color=blue><span style='color:blue'>unsigned</span></font> <span class=SpellE><font
color=blue><span style='color:blue'>int</span></font></span> <span
class=SpellE>numberOfPoints</span> = <span class=SpellE>vpoints</span>-><span
class=SpellE>GetNumberOfPoints</span>();<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
class=SpellE><span class=GramE><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";mso-fareast-language:JA'>vtkFloatArray</span></font></span></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'> *eigenVector_1 = <span class=SpellE>vtkFloatArray::New</span>();<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>eigenVector_1-><span class=SpellE><span
class=GramE>SetNumberOfComponents</span></span><span class=GramE>(</span> 3 );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'>eigenVector_1-><span
class=SpellE><span class=GramE>SetNumberOfTuples</span></span><span
class=GramE>(</span> <span class=SpellE>numberOfPoints</span> );<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
class=SpellE><span class=GramE><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";mso-fareast-language:JA'>vtkFloatArray</span></font></span></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'> *eigenValue_1 = <span class=SpellE>vtkFloatArray::New</span>();<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>eigenValue_1-><span class=SpellE><span class=GramE>SetNumberOfTuples</span></span><span
class=GramE>(</span> <span class=SpellE>numberOfPoints</span> );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'>//************************************************<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'>A brief version of loop to
populate the arrays:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
class=GramE><font size=2 color=blue face="Courier New"><span style='font-size:
10.0pt;font-family:"Courier New";color:blue;mso-fareast-language:JA'>for</span></font></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'> (<font color=blue><span style='color:blue'>unsigned</span></font>
<span class=SpellE><font color=blue><span style='color:blue'>int</span></font></span>
<span class=SpellE>ctr</span>=0; <span class=SpellE>ctr</span> < <span
class=SpellE>numberOfPoints</span>; <span class=SpellE>ctr</span>++){<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'><span style='mso-spacerun:yes'> </span>eigenVector_1-><span
class=SpellE><span class=GramE>SetComponent</span></span><span class=GramE>(</span>
<span class=SpellE>ctr</span>, 0, voxelValue_1_X[X] );<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-ansi-language:ES-MX;mso-fareast-language:JA'><span
style='mso-spacerun:yes'> </span><span class=SpellE><span class=GramE><span
lang=ES-MX>eigenVector</span></span></span><span class=GramE><span lang=ES-MX>_1</span></span><span
lang=ES-MX>-><span class=SpellE>SetComponent</span>( <span class=SpellE>ctr</span>,
1, <span class=SpellE>voxelValue</span>_1_Y[Y] );<o:p></o:p></span></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span lang=ES-MX
style='font-size:10.0pt;font-family:"Courier New";mso-fareast-language:JA'><span
style='mso-spacerun:yes'> </span></span></font><font size=2
face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>eigenVector_1-><span class=SpellE><span
class=GramE>SetComponent</span></span><span class=GramE>(</span> <span
class=SpellE>ctr</span>, 2, voxelValue_1_Z[Z] );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'><span
style='mso-spacerun:yes'> </span>eigenValue_1-><span class=SpellE><span
class=GramE>SetValue</span></span><span class=GramE>(</span> <span
class=SpellE>ctr</span>, <span class=SpellE>pixelValue</span>[X] );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'>}<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'>//************************************************<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'>//Set the vectors and
scalars <o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
class=GramE><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'>points</span></font></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>-><span class=SpellE>GetPointData</span>()-><span
class=SpellE>SetVectors</span>( eigenVector_1 ); <o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";mso-fareast-language:JA'>points</span></font></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>-><span class=SpellE>GetCellData</span>()-><span
class=SpellE>SetScalars</span>( eigenValue_1 );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
class=SpellE><span class=GramE><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";mso-fareast-language:JA'>vtkSphereSource</span></font></span></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'> *source = <span class=SpellE>vtkSphereSource::New</span>();<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
class=GramE><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'>source</span></font></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>-><span class=SpellE>SetThetaResolution</span>( 6
);<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
class=GramE><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'>source</span></font></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>-><span class=SpellE>SetPhiResolution</span>( 5 );<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";mso-fareast-language:JA'>source</span></font></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>-><span class=SpellE>SetRadius</span>( 0.5 );<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'>vtkGlyph3D *glyph =
vtkGlyph3D::<span class=GramE>New(</span>);<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";mso-fareast-language:JA'>glyph</span></font></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>-><span class=SpellE>SetInput</span>(points);<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";mso-fareast-language:JA'>glyph</span></font></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>-><span class=SpellE>SetSource</span>(source-><span
class=SpellE>GetOutput</span>());<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
class=GramE><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'>glyph</span></font></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>-><span class=SpellE>ScalingOff</span>(); // I read
somewhere I need to set this off…even with <span class=SpellE>ScalingOn</span>(),
no scaling happens. <o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
class=GramE><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'>glyph</span></font></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>-><span class=SpellE>OrientOn</span>();<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";mso-fareast-language:JA'>glyph</span></font></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>-><span class=SpellE>SetVectorModeToUseVector</span>();<o:p></o:p></span></font></p>
<p class=MsoNormal style='mso-layout-grid-align:none;text-autospace:none'><span
class=GramE><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New";mso-fareast-language:JA'>glyph</span></font></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>-><span class=SpellE>SetScaleModeToScaleByScalar</span>();<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";mso-fareast-language:JA'>glyph</span></font></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>-><span class=SpellE>SetColorModeToColorByScalar</span>();<o:p></o:p></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Courier New"><span
style='font-size:10.0pt;font-family:"Courier New";mso-fareast-language:JA'>glyph</span></font></span><font
size=2 face="Courier New"><span style='font-size:10.0pt;font-family:"Courier New";
mso-fareast-language:JA'>->Update();</span></font><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
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