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vtkCaptionActor2D可以创建带引线的标签，下载中文开源字库，通过设置字体文件实现中文显示。

字库链接：https://github.com/adobe-fonts/source-han-serif/tree/release#downloading-source-han-serif

int dumNote::CreateOrUpdateNote(vtkSmartPointer<vtkCaptionActor2D> NoteActor,const char* Text, Standard_Real Location $3$ , int H,Standard_Real Notecolor $3$ , Standard_Real Backgroundcolor $3$ )

{

NoteActor->SetCaption(dmuTools::CharToUtf8(Text));//文字

//NoteActor->DragableOn(); //不能拖动

NoteActor->SetAttachmentPoint(Location $0$ , Location $1$ , Location $2$ );

NoteActor->BorderOff();//无边框

NoteActor->GetProperty()->SetColor(1,1, 1);

NoteActor->GetProperty()->SetLineWidth(1.0);

NoteActor->SetPosition(50*H, -50 ); // 左上角偏移

//NoteActor->LeaderOff(); //有链接线

std::string path = TZTEK::dmuTools::GetProgramDir();

path = path + "\\dmu\\SourceHanSerifSC-VF.ttf";

NoteActor->GetCaptionTextProperty()->SetVerticalJustificationToBottom();

NoteActor->GetCaptionTextProperty()->SetFontSize(30);

NoteActor->GetCaptionTextProperty()->SetFontFamily(VTK_FONT_FILE);

NoteActor->GetCaptionTextProperty()->SetFontFile(path.c_str());//字库考虑动态位置

NoteActor->GetCaptionTextProperty()->SetColor(Notecolor $0$ , Notecolor $1$ , Notecolor $2$ );//文字颜色

NoteActor->GetCaptionTextProperty()->SetBackgroundColor(Backgroundcolor $0$ , Backgroundcolor $1$ , Backgroundcolor $2$ );

NoteActor->GetCaptionTextProperty()->SetBackgroundOpacity(1); // 设置背景透明度

NoteActor->GetCaptionTextProperty()->BoldOn();

NoteActor->GetCaptionTextProperty()->ShadowOff();//文字无阴影

//NoteActor->GetCaptionTextProperty()->SetFrame(1);

//NoteActor->GetCaptionTextProperty()->SetFrameWidth(30);

NoteActor->SetPickable(0);

NoteActor->SetVisibility(1);

char* cCharUtf = dmuTools::CharToUtf8(Text);

//NoteActor->SetCaption(cCharUtf);

int size = strlen(cCharUtf);

int num = 1;

int max = 0;

while (cCharUtf != NULL)

{

char* a = strstr((char*)cCharUtf, "\n");

if (a != NULL)

{

size = strlen(cCharUtf);

if (max < size - strlen(a))

max = size - strlen(a);

num++;

cCharUtf = a + 1;

}

else

{

if (max < strlen(cCharUtf))

max = strlen(cCharUtf);

break;

}

NoteActor->SetWidth(2*0.009 * max);

NoteActor->SetHeight(2*0.025 * num);

//double w = NoteActor->GetPosition2() $0$ ;

//double h = NoteActor->GetPosition2() $1$ ;

NoteActor->LeaderOn(); //有链接线

return 0;