VTK继承问题

我正在尝试自定义C++ android本机示例，以便能够更改使用平板电脑时与2（或3）手指进行交互时发生的情况的行为。根据我对VTK管道的了解，我应该修改vtkAndroidRenderWindowInteractor的行为（如果我错了，请纠正我）。所以这是我到目前为止有：VTK继承问题

myRenderInteractor.h

#include "vtkAndroidRenderWindowInteractor.h" 

#include "vtkRenderingOpenGL2Module.h" // For export macro 
#include "vtkRenderWindowInteractor.h" 


#ifndef LOGI 
    #define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, "NativeVTK", __VA_ARGS__)) 
#endif 
#ifndef LOGW 
    #define LOGW(...) ((void)__android_log_print(ANDROID_LOG_WARN, "NativeVTK", __VA_ARGS__)) 
#endif 



class myRenderInteractor : public vtkAndroidRenderWindowInteractor { 
    public: 
     static myRenderInteractor *New(); 
     vtkTypeMacro(myRenderInteractor, vtkAndroidRenderWindowInteractor); 
     void PrintSelf(ostream& os, vtkIndent indent); 
     void log(); 

    protected: 
    myRenderInteractor(); 
    ~myRenderInteractor(); 
};

myRenderInteractor.cxx

#include "myRenderInteractor.h" 

vtkStandardNewMacro(myRenderInteractor); 

myRenderInteractor::myRenderInteractor(){ 
    vtkAndroidRenderWindowInteractor(); 
} 

~myRenderInteractor::myRenderInteractor(){ 
    ~vtkAndroidRenderWindowInteractor(); 
} 

void myRenderInteractor::log(){ 
    // ... 
}

终于在main.cxx

#include "vtkNew.h" 

#include "vtkActor.h" 
#include "vtkCamera.h" 
#include "vtkConeSource.h" 
#include "vtkDebugLeaks.h" 
#include "vtkGlyph3D.h" 
#include "vtkPolyData.h" 
#include "vtkPolyDataMapper.h" 
#include "vtkRenderWindow.h" 
#include "vtkRenderer.h" 
#include "vtkSphereSource.h" 
#include "vtkTextActor.h" 
#include "vtkTextProperty.h" 

#include "myRenderInteractor.h" 
#include "vtkAndroidRenderWindowInteractor.h" 

#include <android/log.h> 
#include <android_native_app_glue.h> 

#ifndef LOGI 
    #define LOGI(...) ((void)__android_log_print(ANDROID_LOG_INFO, "NativeVTK", __VA_ARGS__)) 
#endif 
#ifndef LOGW 
    #define LOGW(...) ((void)__android_log_print(ANDROID_LOG_WARN, "NativeVTK", __VA_ARGS__)) 
#endif 

/** 
* This is the main entry point of a native application that is using 
* android_native_app_glue. It runs in its own thread, with its own 
* event loop for receiving input events and doing other things. 
*/ 
void android_main(struct android_app* state) 
{ 
    // Make sure glue isn't stripped. 
    app_dummy(); 

    vtkNew<vtkRenderWindow> renWin; 
    vtkNew<vtkRenderer> renderer; 
    vtkNew<myRenderInteractor> iren; 

    // this line is key, it provides the android 
    // state to VTK 
    iren->SetAndroidApplication(state); 

    renWin->AddRenderer(renderer.Get()); 
    iren->SetRenderWindow(renWin.Get()); 

    vtkNew<vtkSphereSource> sphere; 
    sphere->SetThetaResolution(8); 
    sphere->SetPhiResolution(8); 

    vtkNew<vtkPolyDataMapper> sphereMapper; 
    sphereMapper->SetInputConnection(sphere->GetOutputPort()); 
    vtkNew<vtkActor> sphereActor; 
    sphereActor->SetMapper(sphereMapper.Get()); 

    vtkNew<vtkConeSource> cone; 
    cone->SetResolution(6); 

    vtkNew<vtkGlyph3D> glyph; 
    glyph->SetInputConnection(sphere->GetOutputPort()); 
    glyph->SetSourceConnection(cone->GetOutputPort()); 
    glyph->SetVectorModeToUseNormal(); 
    glyph->SetScaleModeToScaleByVector(); 
    glyph->SetScaleFactor(0.25); 

    vtkNew<vtkPolyDataMapper> spikeMapper; 
    spikeMapper->SetInputConnection(glyph->GetOutputPort()); 

    vtkNew<vtkActor> spikeActor; 
    spikeActor->SetMapper(spikeMapper.Get()); 

    renderer->AddActor(sphereActor.Get()); 
    renderer->AddActor(spikeActor.Get()); 
    renderer->SetBackground(0.4,0.5,0.6); 

    vtkNew<vtkTextActor> ta; 
    ta->SetInput("Droids Rock"); 
    ta->GetTextProperty()->SetColor(0.5, 1.0, 0.0); 
    ta->SetDisplayPosition(50,50); 
    ta->GetTextProperty()->SetFontSize(32); 
    renderer->AddActor(ta.Get()); 

    renWin->Render(); 
    iren->Start(); 
}

我面临的问题是我有以下错误。所以也许我只是愚蠢地忘记了一件非常简单的事情，但我无法找到为什么我会得到它。

/Users/.../Desktop/VTKNew/Common/Core/vtkNew.h:66: error: undefined reference to 'myRenderInteractor::New()' collect2: error: ld returned 1 exit status make[3]: ***

[Examples/Android/NativeVTK/libs/armeabi-v7a/libNativeVTK.so] Error 1 make[2]: ***

[Examples/Android/NativeVTK/jni/CMakeFiles/NativeVTK.dir/all] Error 2 make[1]: ***

[Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-release.dir/rule] Error 2 make: ***

[Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-release.dir/rule] Error 2

想得到一些帮助。

在此先感谢

编辑：在我的Makefile的例子/安卓/ NativeVTK /我：

# Convenience name for target. 
Examples/Android/NativeVTK/CMakeFiles/NativeVTK-ant-configure.dir/rule: 
    cd /Users/lonnibesancon/Desktop/VTKNew/vtkbin/CMakeExternals/Build/vtk-android && $(MAKE) -f CMakeFiles/Makefile2 Examples/Android/NativeVTK/CMakeFiles/NativeVTK-ant-configure.dir/rule 
.PHONY : Examples/Android/NativeVTK/CMakeFiles/NativeVTK-ant-configure.dir/rule 

# Convenience name for target. 
NativeVTK-ant-configure: Examples/Android/NativeVTK/CMakeFiles/NativeVTK-ant-configure.dir/rule 
.PHONY : NativeVTK-ant-configure 

# fast build rule for target. 
NativeVTK-ant-configure/fast: 
    cd /Users/.../Desktop/VTKNew/vtkbin/CMakeExternals/Build/vtk-android && $(MAKE) -f Examples/Android/NativeVTK/CMakeFiles/NativeVTK-ant-configure.dir/build.make Examples/Android/NativeVTK/CMakeFiles/NativeVTK-ant-configure.dir/build 
.PHONY : NativeVTK-ant-configure/fast 

# Convenience name for target. 
Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/rule: 
    cd /Users/.../Desktop/VTKNew/vtkbin/CMakeExternals/Build/vtk-android && $(MAKE) -f CMakeFiles/Makefile2 Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/rule 
.PHONY : Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/rule 

# Convenience name for target. 
NativeVTK-apk-debug: Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/rule 
.PHONY : NativeVTK-apk-debug 

# fast build rule for target. 
NativeVTK-apk-debug/fast: 
    cd /Users/.../Desktop/VTKNew/vtkbin/CMakeExternals/Build/vtk-android && $(MAKE) -f Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/build.make Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/build 
.PHONY : NativeVTK-apk-debug/fast 

# Convenience name for target. 
Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-release.dir/rule: 
    cd /Users/.../Desktop/VTKNew/vtkbin/CMakeExternals/Build/vtk-android && $(MAKE) -f CMakeFiles/Makefile2 Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-release.dir/rule 
.PHONY : Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-release.dir/rule 

# Convenience name for target. 
NativeVTK-apk-release: Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-release.dir/rule 
.PHONY : NativeVTK-apk-release 

# fast build rule for target. 
NativeVTK-apk-release/fast: 
    cd /Users/.../Desktop/VTKNew/vtkbin/CMakeExternals/Build/vtk-android && $(MAKE) -f Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-release.dir/build.make Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-release.dir/build 
.PHONY : NativeVTK-apk-release/fast

所以我想我应该检查哪些包含build.make：

# CMAKE generated file: DO NOT EDIT! 
# Generated by "Unix Makefiles" Generator, CMake Version 3.1 

#============================================================================= 
# Special targets provided by cmake. 

# Disable implicit rules so canonical targets will work. 
.SUFFIXES: 

# Remove some rules from gmake that .SUFFIXES does not remove. 
SUFFIXES = 

.SUFFIXES: .hpux_make_needs_suffix_list 

# Suppress display of executed commands. 
$(VERBOSE).SILENT: 

# A target that is always out of date. 
cmake_force: 
.PHONY : cmake_force 

#============================================================================= 
# Set environment variables for the build. 

# The shell in which to execute make rules. 
SHELL = /bin/sh 

# The CMake executable. 
CMAKE_COMMAND = /usr/local/Cellar/cmake/3.1.2/bin/cmake 

# The command to remove a file. 
RM = /usr/local/Cellar/cmake/3.1.2/bin/cmake -E remove -f 

# Escaping for special characters. 
EQUALS = = 

# The top-level source directory on which CMake was run. 
CMAKE_SOURCE_DIR = /Users/.../Desktop/VTKNew 

# The top-level build directory on which CMake was run. 
CMAKE_BINARY_DIR = /Users/.../Desktop/VTKNew/vtkbin/CMakeExternals/Build/vtk-android 

# Utility rule file for NativeVTK-apk-debug. 

# Include the progress variables for this target. 
include Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/progress.make 

Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug: 
    cd /Users/.../Desktop/VTKNew/vtkbin/CMakeExternals/Build/vtk-android/Examples/Android/NativeVTK && /usr/local/bin/ant -file /Users/.../Desktop/VTKNew/vtkbin/CMakeExternals/Build/vtk-android/Examples/Android/NativeVTK/build.xml debug 

NativeVTK-apk-debug: Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug 
NativeVTK-apk-debug: Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/build.make 
.PHONY : NativeVTK-apk-debug 

# Rule to build all files generated by this target. 
Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/build: NativeVTK-apk-debug 
.PHONY : Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/build 

Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/clean: 
    cd /Users/.../Desktop/VTKNew/vtkbin/CMakeExternals/Build/vtk-android/Examples/Android/NativeVTK && $(CMAKE_COMMAND) -P CMakeFiles/NativeVTK-apk-debug.dir/cmake_clean.cmake 
.PHONY : Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/clean 

Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/depend: 
    cd /Users/.../Desktop/VTKNew/vtkbin/CMakeExternals/Build/vtk-android && $(CMAKE_COMMAND) -E cmake_depends "Unix Makefiles" /Users/.../Desktop/VTKNew /Users/.../Desktop/VTKNew/Examples/Android/NativeVTK /Users/.../Desktop/VTKNew/vtkbin/CMakeExternals/Build/vtk-android /Users/.../Desktop/VTKNew/vtkbin/CMakeExternals/Build/vtk-android/.../Android/NativeVTK /Users/.../Desktop/VTKNew/vtkbin/CMakeExternals/Build/vtk-android/.../Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/DependInfo.cmake --color=$(COLOR) 
.PHONY : Examples/Android/NativeVTK/CMakeFiles/NativeVTK-apk-debug.dir/depend

是我需要改变的文件。坦率地说，我完全失去了，并希望获得更多关于整个过程的文档，因为由于某种原因我无法使用cmake。当然，我不希望直接修改makefile，但现在看来我没有选择。

来源

2015-10-20 LBes

看起来您已经在库中定义了myRenderInteractor，但却忘记了通过target_link_libraries将您的可执行文件链接到该库。

根据你的问题输出错误，你会得到一个来自ld的“未定义参考”错误 - 这是一个链接器错误。你的代码编译得很好。您需要将包含myRenderInteractor的库添加到链接到最终可执行文件的库列表中。如果您不使用CMake生成涉及的makefile，那么您需要将库名称添加到手工制作文件中链接的东西列表中。

来源

2015-10-20 14:10:52 DLRdave

感谢您的回答。我应该在Makefile中做到这一点吗？原因我使用生成vtk时自动生成的Makefile，因为我有问题直接自己制作示例 – LBes

即使在这之前它不会让我感到困难吗？就像简单地试图包含标题一样？ – LBes

作为编辑回答我的答案......（是的，在Makefile中做这个，不，在这之前你不会遇到任何问题 - 如果包含头文件，那么它在编译时定义...但如果你没有链接到它，那么它没有被定义，当你连接...） – DLRdave

回答

相关问题