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<p class=MsoNormal><span class=EmailStyle15><font size=2 color=black
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'>How do I get the text to follow the active camera? I am using the
Doc/View paradigm in the vtk/MFC example where you </span></font></span><font
color=black><span style='color:black'>fill a vtkPropCollection with actors, then
add them to your "picture view" during OnUpdate(). </span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><![if !supportEmptyParas]> <![endif]></span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'>In the document class I do this:</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>//--------
The pipeline for text</span></font><font color=black><span style='color:black;
mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>//
Source</span></font><font color=black><span style='color:black;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>vText->SetText(txt);</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>//
Filters</span></font><font color=black><span style='color:black;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span></span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>//
Mapper</span></font><font color=black><span style='color:black;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>textMapper->SetInput(vText->GetOutput());</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><![if !supportEmptyParas]> <![endif]></span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>//
Actor</span></font><font color=black><span style='color:black;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>textActor->SetMapper(textMapper);</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>textActor->SetScale(1,1,1);</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>textActor->AddPosition(0,-0.1,-0.1);</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>textActor->GetProperty()->SetDiffuseColor(0.2784,
1.0000, 0.3882);</span></font><font color=black><span style='color:black;
mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>textActor->GetProperty()->SetSpecularColor(0.2784,
1.0000, 0.3882);</span></font><font color=black><span style='color:black;
mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>textActor->GetProperty()->SetSpecular(0.4);</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>textActor->GetProperty()->SetSpecularPower(50);</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>textActor->GetProperty()->SetInterpolationToGouraud();</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><span style='mso-tab-count:1'> </span>textActor->GetProperty()->SetOpacity(0.75);</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'>//<span style='mso-tab-count:1'> </span>textActor->SetCamera(Renderer->GetActiveCamera());</span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=black face="Times New Roman"><span
style='font-size:12.0pt;color:black'><![if !supportEmptyParas]> <![endif]></span></font><font
color=black><span style='color:black;mso-color-alt:windowtext'><o:p></o:p></span></font></p>
<pre><span class=EmailStyle15><font size=2 color=black face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;mso-fareast-font-family:
"Times New Roman"'>Clearly the last line will not work because the Renderer is in the view class. So how do I get the active camera for the text actor?<o:p></o:p></span></font></span></pre><pre><span
class=EmailStyle15><font size=2 color=black face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;mso-fareast-font-family:
"Times New Roman"'>Is there some way of doing this in the view class in particular OnUpdate(), where you are adding the actors to the renderer as done in the following code snippet.<o:p></o:p></span></font></span></pre><pre><span
class=EmailStyle15><font size=2 color=black face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;mso-fareast-font-family:
"Times New Roman"'><span style='mso-tab-count:1'> </span>while (prop = propc->GetNextProp()) <o:p></o:p></span></font></span></pre><pre><span
class=EmailStyle15><font size=2 color=black face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;mso-fareast-font-family:
"Times New Roman"'><span style='mso-tab-count:1'> </span>{<o:p></o:p></span></font></span></pre><pre><span
class=EmailStyle15><font size=2 color=black face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;mso-fareast-font-family:
"Times New Roman"'><span style='mso-tab-count:2'> </span>this->Renderer->AddProp(prop);<o:p></o:p></span></font></span></pre><pre><span
class=EmailStyle15><font size=2 color=black face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;mso-fareast-font-family:
"Times New Roman"'><span style='mso-tab-count:1'> </span>}<o:p></o:p></span></font></span></pre><pre><span
class=EmailStyle15><font size=2 color=black face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;mso-fareast-font-family:
"Times New Roman"'><span style='mso-tab-count:1'> </span>this->Renderer->ResetCamera();<o:p></o:p></span></font></span></pre><pre><span
class=EmailStyle15><font size=2 color=black face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;mso-fareast-font-family:
"Times New Roman"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></pre><pre><span
class=EmailStyle15><font size=2 color=black face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;mso-fareast-font-family:
"Times New Roman"'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></pre><pre><span
class=EmailStyle15><font size=2 color=black face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial;mso-fareast-font-family:
"Times New Roman"'>If you have an answer, many thanks in advance!!<o:p></o:p></span></font></span></pre>
<p class=MsoNormal><span class=EmailStyle15><font size=2 color=black
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle15><font size=2 color=black
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle15><font size=2 color=black
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'>Andrew<o:p></o:p></span></font></span></p>
<p class=MsoNormal><span class=EmailStyle15><font size=2 color=black
face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:
Arial'><![if !supportEmptyParas]> <![endif]><o:p></o:p></span></font></span></p>
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