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<div class=Section1 style='layout-grid:15.6pt'>
<p class=MsoNormal><span class=SpellE><font size=1 face=Arial><span lang=EN-US
style='font-size:9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial'>Hi<span
class=GramE>,all</span></span></font></span><font size=1 face=Arial><span
lang=EN-US style='font-size:9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-US style='font-size:
9.0pt;mso-bidi-font-size:10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>I drew a plane
using <span class=SpellE>vtkPlaneSource</span>, and draw a <span class=GramE>line(</span>with
a different color) on the plane. When I rotate them I found some parts of the
line was covered by the plane at <o:p></o:p></span></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Times New Roman"><span
lang=EN-US style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>some</span></span></font></span><span
lang=EN-US> view angles and the line flickered. I don’t know whether
there are some tricks to solve the problem?<o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>Any idea is
appreciated!<o:p></o:p></span></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>Peace<o:p></o:p></span></span></font></p>
<div style='border:none;border-bottom:double windowtext 2.25pt;padding:0cm 0cm 1.0pt 0cm'>
<p class=MsoNormal style='border:none;mso-border-bottom-alt:double windowtext 2.25pt;
padding:0cm;mso-padding-alt:0cm 0cm 1.0pt 0cm'><font size=2
face="Times New Roman"><span lang=EN-US style='font-size:10.0pt'><o:p> </o:p></span></font></p>
</div>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>#Codes<o:p></o:p></span></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Times New Roman"><span
lang=EN-US style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>package</span></span></font></span><span
lang=EN-US> require <span class=SpellE>vtk</span><o:p></o:p></span></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Times New Roman"><span
lang=EN-US style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>package</span></span></font></span><span
lang=EN-US> require <span class=SpellE>vtkinteraction</span><o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
8'> </span></span></font><font
size=2><span lang=EN-US style='font-size:10.0pt'><o:p></o:p></span></font></p>
<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face="Times New Roman"><span lang=EN-US style='font-size:10.5pt'><span
style='mso-bidi-font-size:12.0pt'>vtkRenderer</span></span></font></span></span><span
lang=EN-US> ren1<o:p></o:p></span></p>
<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face="Times New Roman"><span lang=EN-US style='font-size:10.5pt'><span
style='mso-bidi-font-size:12.0pt'>vtkRenderWindow</span></span></font></span></span><span
lang=EN-US> <span class=SpellE>renWin</span><o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'><span
style='mso-spacerun:yes'> </span></span></span></font><span
lang=DE style='mso-ansi-language:DE'>renWin AddRenderer ren1<o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=DE
style='font-size:10.5pt;mso-ansi-language:DE'><span style='mso-bidi-font-size:
12.0pt'>vtkRenderWindowInteractor iren<o:p></o:p></span></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=DE
style='font-size:10.5pt;mso-ansi-language:DE'><span style='mso-bidi-font-size:
12.0pt'><span style='mso-spacerun:yes'> </span>iren
SetRenderWindow renWin<o:p></o:p></span></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=DE
style='font-size:10.5pt;mso-ansi-language:DE'><span style='mso-bidi-font-size:
12.0pt'>ren1 SetBackground 0 0 0<o:p></o:p></span></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=DE
style='font-size:10.5pt;mso-ansi-language:DE'><span style='mso-bidi-font-size:
12.0pt'>renWin SetSize 400 400<o:p></o:p></span></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=DE
style='font-size:10.5pt;mso-ansi-language:DE'><span style='mso-bidi-font-size:
12.0pt'>iren AddObserver UserEvent {wm deiconify .vtkInteract}<o:p></o:p></span></span></font></p>
<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face="Times New Roman"><span lang=EN-US style='font-size:10.5pt'><span
style='mso-bidi-font-size:12.0pt'>iren</span></span></font></span></span><span
lang=EN-US> Initialize<o:p></o:p></span></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Times New Roman"><span
lang=EN-US style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>wm</span></span></font></span><span
lang=EN-US> withdraw .<o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>#plane<o:p></o:p></span></span></font></p>
<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face="Times New Roman"><span lang=EN-US style='font-size:10.5pt'><span
style='mso-bidi-font-size:12.0pt'>vtkPlaneSource</span></span></font></span></span><span
lang=EN-US> plane<o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'><span
style='mso-spacerun:yes'> </span><span class=GramE>plane</span>
<span class=SpellE>SetResolution</span> 1 <span class=SpellE>1</span><o:p></o:p></span></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'><span
style='mso-spacerun:yes'> </span><o:p></o:p></span></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
1'> </span></span><span class=SpellE><span
class=GramE><span lang=EN-US>vtkPolyDataMapper</span></span></span></font><font
size=2><span lang=EN-US style='font-size:10.0pt'> <span class=SpellE>planemap</span><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
1'> </span></span><span lang=EN-US><span
style='mso-spacerun:yes'> </span><span class=SpellE><span
class=GramE>planemap</span></span> <span class=SpellE>SetInputConnection</span>
[plane <span class=SpellE>GetOutputPort</span>]<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
1'> </span></span><span class=SpellE><span
class=GramE><span lang=EN-US>vtkActor</span></span></span></font><font size=2><span
lang=EN-US style='font-size:10.0pt'> <span class=SpellE>planeact</span><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
1'> </span></span><span lang=EN-US><span
style='mso-spacerun:yes'> </span><span class=SpellE><span
class=GramE>planeact</span></span> <span class=SpellE>SetMapper</span> <span
class=SpellE>planemap</span><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
1'> </span></span><span lang=EN-US><span
style='mso-spacerun:yes'> </span>[<span class=SpellE><span
class=GramE>planeact</span></span> <span class=SpellE>GetProperty</span>] <span
class=SpellE>SetColor</span> 0.5 <span class=SpellE>0.5</span> <span
class=SpellE>0.5</span><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
1'> </span></span><span lang=EN-US><span
style='mso-spacerun:yes'> </span><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>#line<o:p></o:p></span></span></font></p>
<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face="Times New Roman"><span lang=EN-US style='font-size:10.5pt'><span
style='mso-bidi-font-size:12.0pt'>vtkPoints</span></span></font></span></span><span
lang=EN-US> pts<o:p></o:p></span></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Times New Roman"><span
lang=EN-US style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>pts</span></span></font></span><span
lang=EN-US> <span class=SpellE>InsertNextPoint</span> 0 1 0<o:p></o:p></span></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Times New Roman"><span
lang=EN-US style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>pts</span></span></font></span><span
lang=EN-US> <span class=SpellE>InsertNextPoint</span> 0 -1 0<o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face="Times New Roman"><span lang=EN-US style='font-size:10.5pt'><span
style='mso-bidi-font-size:12.0pt'>vtkCellArray</span></span></font></span></span><span
lang=EN-US> line<o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
2'> </span></span><span
class=GramE><span lang=EN-US>line</span></span></font><font size=2><span
lang=EN-US style='font-size:10.0pt'> <span class=SpellE>InsertNextCell</span> 2<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
1'> </span></span><span lang=EN-US><span
style='mso-spacerun:yes'> </span><span class=GramE>line</span> <span
class=SpellE>InsertCellPoint</span> 0<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
1'> </span></span><span lang=EN-US><span
style='mso-spacerun:yes'> </span><span class=GramE>line</span> <span
class=SpellE>InsertCellPoint</span> 1<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
1'> </span></span><span lang=EN-US><span
style='mso-spacerun:yes'> </span><o:p></o:p></span></font></p>
<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face="Times New Roman"><span lang=EN-US style='font-size:10.5pt'><span
style='mso-bidi-font-size:12.0pt'>vtkPolyData</span></span></font></span></span><span
lang=EN-US> data<o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
1'> </span></span><span lang=EN-US><span
style='mso-spacerun:yes'> </span><span class=GramE>data</span>
<span class=SpellE>SetPoints</span> pts<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
1'> </span></span><span lang=EN-US><span
style='mso-spacerun:yes'> </span><span class=GramE>data</span>
<span class=SpellE>SetLines</span> line<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
1'> </span></span></font><font size=2><span
lang=EN-US style='font-size:10.0pt'><o:p></o:p></span></font></p>
<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face="Times New Roman"><span lang=EN-US style='font-size:10.5pt'><span
style='mso-bidi-font-size:12.0pt'>vtkDataSetMapper</span></span></font></span></span><span
lang=EN-US> map<o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
1'> </span></span><span lang=EN-US><span
style='mso-spacerun:yes'> </span><span style='mso-tab-count:1'> </span><span
class=GramE>map</span> <span class=SpellE>SetInput</span> data<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'><span
style='mso-spacerun:yes'> </span><o:p></o:p></span></span></font></p>
<p class=MsoNormal><span class=SpellE><span class=GramE><font size=2
face="Times New Roman"><span lang=EN-US style='font-size:10.5pt'><span
style='mso-bidi-font-size:12.0pt'>vtkActor</span></span></font></span></span><span
lang=EN-US> <span class=SpellE>lineact</span><o:p></o:p></span></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
2'> </span></span><span
lang=EN-US><span style='mso-spacerun:yes'> </span><span class=SpellE><span
class=GramE>lineact</span></span> <span class=SpellE>SetMapper</span> map<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt;mso-bidi-font-size:10.5pt'><span style='mso-tab-count:
2'> </span></span><span
lang=EN-US><span style='mso-spacerun:yes'> </span>[<span class=SpellE><span
class=GramE>lineact</span></span> <span class=SpellE>GetProperty</span>] <span
class=SpellE>SetColor</span> 1 <span class=SpellE>1</span> <span class=SpellE>1</span><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face="Times New Roman"><span lang=EN-US
style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>#Draw<o:p></o:p></span></span></font></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Times New Roman"><span
lang=EN-US style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>ren1</span></span></font></span><span
lang=EN-US> <span class=SpellE>AddActor</span> <span class=SpellE>planeact</span><span
style='mso-tab-count:2'> </span><span
style='mso-spacerun:yes'> </span><o:p></o:p></span></p>
<p class=MsoNormal><span class=GramE><font size=2 face="Times New Roman"><span
lang=EN-US style='font-size:10.5pt'><span style='mso-bidi-font-size:12.0pt'>ren1</span></span></font></span><span
lang=EN-US> <span class=SpellE>AddActor</span> <span class=SpellE>lineact</span><o:p></o:p></span></p>
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