[vtkusers] Computational Geometry - user equations?

Sat Oct 3 22:32:26 EDT 2015

VT6 is modular in contrast to VTK 5 so I would replace the section in the
CMakeLists.txt file dealing with including  the modules with something like
this:

find_package(VTK REQUIRED)
include(${VTK_USE_FILE})

I hope this helps.

Andrew Maclean
On 4 Oct 2015 1:01 pm, "Gib Bogle" <g.bogle at auckland.ac.nz> wrote:

> That was easily circumvented, but turned out to be the least of the
> problems:
>
> 2>TrefoilKnot.obj : error LNK2019: unresolved external symbol
> "__declspec(dllimport) protected: __thiscall
> vtkParametricFunction::vtkParametricFunction(void)"
> (__imp_??0vtkParametricFunction@@IAE at XZ) referenced in function
> "protected: __thiscall
> myParametricTrefoilKnot::myParametricTrefoilKnot(void)"
> (??0myParametricTrefoilKnot@@IAE at XZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkObjectBase::Delete(void)" (?Delete at vtkObjectBase
> @@UAEXXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkObjectBase::FastDelete(void)"
> (?FastDelete at vtkObjectBase@@UAEXXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkObjectBase::PrintHeader(class
> std::basic_ostream<char,struct std::char_traits<char> > &,class vtkIndent)"
> (?PrintHeader at vtkObjectBase@@UAEXAAV?$basic_ostream at DU?$char_traits at D@std@
> @@std@@VvtkIndent@@@Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkObjectBase::PrintTrailer(class
> std::basic_ostream<char,struct std::char_traits<char> > &,class vtkIndent)"
> (?PrintTrailer at vtkObjectBase@@UAEXAAV?$basic_ostream at DU?$char_traits at D
> @std@@@std@@VvtkIndent@@@Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkObjectBase::Register(class vtkObjectBase *)"
> (?Register at vtkObjectBase@@UAEXPAV1@@Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkObjectBase::UnRegister(class vtkObjectBase *)"
> (?UnRegister at vtkObjectBase@@UAEXPAV1@@Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "protected:
> virtual void __thiscall myParametricTrefoilKnot::CollectRevisions(class
> std::basic_ostream<char,struct std::char_traits<char> > &)"
> (?CollectRevisions at myParametricTrefoilKnot@@MAEXAAV?$basic_ostream at DU
> ?$char_traits at D@std@@@std@@@Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "protected:
> virtual void __thiscall vtkObject::RegisterInternal(class vtkObjectBase
> *,int)" (?RegisterInternal at vtkObject@@MAEXPAVvtkObjectBase@@H at Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "protected:
> virtual void __thiscall vtkObject::UnRegisterInternal(class vtkObjectBase
> *,int)" (?UnRegisterInternal at vtkObject@@MAEXPAVvtkObjectBase@@H at Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "protected:
> virtual void __thiscall vtkObjectBase::ReportReferences(class
> vtkGarbageCollector *)" (?ReportReferences at vtkObjectBase
> @@MAEXPAVvtkGarbageCollector@@@Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkObject::DebugOn(void)" (?DebugOn at vtkObject
> @@UAEXXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkObject::DebugOff(void)" (?DebugOff at vtkObject
> @@UAEXXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkObject::Modified(void)" (?Modified at vtkObject
> @@UAEXXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual unsigned long __thiscall vtkObject::GetMTime(void)"
> (?GetMTime at vtkObject@@UAEKXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::SetMinimumU(double)"
> (?SetMinimumU at vtkParametricFunction@@UAEXN at Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual double __thiscall vtkParametricFunction::GetMinimumU(void)"
> (?GetMinimumU at vtkParametricFunction@@UAENXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::SetMaximumU(double)"
> (?SetMaximumU at vtkParametricFunction@@UAEXN at Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual double __thiscall vtkParametricFunction::GetMaximumU(void)"
> (?GetMaximumU at vtkParametricFunction@@UAENXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::SetMinimumV(double)"
> (?SetMinimumV at vtkParametricFunction@@UAEXN at Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual double __thiscall vtkParametricFunction::GetMinimumV(void)"
> (?GetMinimumV at vtkParametricFunction@@UAENXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::SetMaximumV(double)"
> (?SetMaximumV at vtkParametricFunction@@UAEXN at Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual double __thiscall vtkParametricFunction::GetMaximumV(void)"
> (?GetMaximumV at vtkParametricFunction@@UAENXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::SetMinimumW(double)"
> (?SetMinimumW at vtkParametricFunction@@UAEXN at Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual double __thiscall vtkParametricFunction::GetMinimumW(void)"
> (?GetMinimumW at vtkParametricFunction@@UAENXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::SetMaximumW(double)"
> (?SetMaximumW at vtkParametricFunction@@UAEXN at Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual double __thiscall vtkParametricFunction::GetMaximumW(void)"
> (?GetMaximumW at vtkParametricFunction@@UAENXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::SetJoinU(int)"
> (?SetJoinU at vtkParametricFunction@@UAEXH at Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual int __thiscall vtkParametricFunction::GetJoinU(void)"
> (?GetJoinU at vtkParametricFunction@@UAEHXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::JoinUOn(void)"
> (?JoinUOn at vtkParametricFunction@@UAEXXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::JoinUOff(void)"
> (?JoinUOff at vtkParametricFunction@@UAEXXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::SetJoinV(int)"
> (?SetJoinV at vtkParametricFunction@@UAEXH at Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual int __thiscall vtkParametricFunction::GetJoinV(void)"
> (?GetJoinV at vtkParametricFunction@@UAEHXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::JoinVOn(void)"
> (?JoinVOn at vtkParametricFunction@@UAEXXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::JoinVOff(void)"
> (?JoinVOff at vtkParametricFunction@@UAEXXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::SetTwistU(int)"
> (?SetTwistU at vtkParametricFunction@@UAEXH at Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual int __thiscall vtkParametricFunction::GetTwistU(void)"
> (?GetTwistU at vtkParametricFunction@@UAEHXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::TwistUOn(void)"
> (?TwistUOn at vtkParametricFunction@@UAEXXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::TwistUOff(void)"
> (?TwistUOff at vtkParametricFunction@@UAEXXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::SetTwistV(int)"
> (?SetTwistV at vtkParametricFunction@@UAEXH at Z)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual int __thiscall vtkParametricFunction::GetTwistV(void)"
> (?GetTwistV at vtkParametricFunction@@UAEHXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::TwistVOn(void)"
> (?TwistVOn at vtkParametricFunction@@UAEXXZ)
> 2>TrefoilKnot.obj : error LNK2001: unresolved external symbol "public:
> virtual void __thiscall vtkParametricFunction::TwistVOff(void)"
> (?TwistVOff at vtkParametricFunction@@UAEXXZ)
> etc. etc.
> ------------------------------
> *From:* Andrew Maclean [andrew.amaclean at gmail.com]
> *Sent:* Sunday, 4 October 2015 2:53 p.m.
> *To:* Gib Bogle
> *Cc:* vtk; logicmonkeyuk
> *Subject:* RE: [vtkusers] Computational Geometry - user equations?
>
> vtkNamedColors was introduced in VTK 6. For VTK 5 you will have to specify
> colours using RGB values.
>
> e.g something like:
> unsigned char red[3] = {255, 0, 0};
>   actor->GetProperty()->SetColor(red[0], red[1], red[2]);
>
> Andrew Maclean
> On 4 Oct 2015 12:35 pm, "Gib Bogle" <g.bogle at auckland.ac.nz> wrote:
>
>> Hi Piers, Andrew, Cory,
>>
>> This does not build with VTK 5.10 (no vtkNamedColors.h).  Is there a
>> version that works with 5.10?
>>
>> Thanks
>> Gib
>> ------------------------------
>> *From:* vtkusers [vtkusers-bounces at vtk.org] on behalf of
>> piers.barber at logicmonkey.co.uk [piers.barber at logicmonkey.co.uk]
>> *Sent:* Sunday, 4 October 2015 1:48 p.m.
>> *To:* andrew.amaclean at gmail.com
>> *Cc:* vtk
>> *Subject:* Re: [vtkusers] Computational Geometry - user equations?
>>
>> Andrew, Cory,
>>
>> Thanks for the attachment - as a non-coder it bridged the gap between the
>> PDF that I've seen before and what actually needed to be done.
>>
>> I've attached my trefoil knot code in a zip. The partial derivatives make
>> a big difference to shadows.
>>
>> I'm on Arch Linux with VTK 6.1.0, and the only change I needed to make to
>> get the example to build was to the CMakeLists.txt - so it picks up OpenGL
>> rather than OpenGL2.
>>
>> I'm pleased that this works, but the output surface is rather jagged when
>> compared to what I get with MathMod. Any ideas?
>>
>> For the VTK user list, the zipped files I mention are here:
>>
>> https://github.com/logicmonkey/curves/tree/master/vtk/TrefoilKnot
>>
>> ( unzip/git pull; cd TrefoilKnot; mkdir build; cd build; cmake ..; make;
>> ./bin/TrefoilKnot )
>>
>> Thanks again for your help.
>>
>> --
>>
>> Piers Barber (-=:LogicMonkey;=-)
>>
>> On 2015-10-01 00:19, Andrew Maclean wrote:
>>
>> If I understand you correctly, then the approach described in
>> http://www.vtk.org/img/ParametricSurfaces.pdfin " How to create your own
>> surface" should work for you. If you adopt this approach, you just build
>> using the library and you do not need to modify the VTK library.
>>
>> I attach  a VTK 6.3+ version of the example for you to try out.
>>
>> I'll add this to the VTK examples sometime next week.
>>
>> Once you get a surface you might like to look at:
>>
>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/ElevationBandsWithGlyphs
>> and
>>
>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/Visualization/CurvatureBandsWithGlyphs
>> for some visualisation ideas.
>>
>>
>> Regards
>>    Andrew
>>
>>
>>
>>> ---------- Forwarded message ----------
>>> From: Cory Quammen <cory.quammen at kitware.com>
>>> To: piers.barber at logicmonkey.co.uk
>>> Cc: "vtkusers at vtk.org" <vtkusers at vtk.org>
>>> Date: Wed, 30 Sep 2015 09:15:45 -0400
>>> Subject: Re: [vtkusers] Computational Geometry - user equations?
>>> On Tue, Sep 29, 2015 at 12:13 PM, <piers.barber at logicmonkey.co.uk>
>>> wrote:
>>>
>>>> Hi All,
>>>>
>>>> I'd like to specify a surface f(u,v) in 3D with my own parametric
>>>> equation system {x(u,v), y(u,v), z(u,v)}. And then visualize it.
>>>>
>>>> The only way I can see to do this is to add my function to the library
>>>> source code, build the library and then call my function as described here:
>>>>
>>>>
>>>> http://www.vtk.org/Wiki/VTK/Examples/Cxx/GeometricObjects/ParametricObjectsDemo#CMakeLists.txt
>>>
>>>
>>> Yep, that looks like a good way to go.
>>>
>>>
>>>> I'm using vtkParametricTorus[.h, .cxx] as a template, but is there an
>>>> easier and more direct way to do this?
>>>
>>>
>>> You can define your subclass of vtkParametricFunction in your local
>>> project - no need to add it to VTK, which is what I think you were saying
>>> above.
>>>
>>> Were you looking for a vtkParametricFunction subclass that takes an
>>> expression for x(u,v), etc.? That doesn't exist as far as I know, but that
>>> would be cool to have.
>>>
>>> Cory
>>>
>>>
>>>> Thanks!
>>>>
>>>> -=:LM:=-
>>>> _______________________________________________
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>>>
>>>
>>>
>>>
>>> --
>>> Cory Quammen
>>> R&D Engineer
>>> Kitware, Inc.
>>>
>>>
>>> --
>> ___________________________________________
>> Andrew J. P. Maclean
>>
>> ___________________________________________
>>
>>
>>
>>
>
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