如何在linux系统上获得真实类型字符的字形轮廓

概述我正在寻找一个库来获取 linux系统上真实字体的字形轮廓.我们正在使用 Pango和 Cairo,但不幸的是我没有找到任何东西. 我正在寻找类似于.NET下的 GlyphTypeface.GetGlyphOutline的东西 任何帮助或提示表示赞赏！ 提前致谢 解决方案是使用FreeType,它提供了我需要的功能范围： #include <string>#include <iostream> 我正在寻找一个库来获取 linux系统上真实字体的字形轮廓.我们正在使用 Pango和 Cairo,但不幸的是我没有找到任何东西.
我正在寻找类似于.NET下的 GlyphTypeface.GetGlyphOutline的东西

任何帮助或提示表示赞赏！

提前致谢

解决方法 解决方案是使用FreeType,它提供了我需要的功能范围：

#include <string>#include <iostream>#include  <freetype/ftglyph.h>#include  <freetype/freetype.h>//******************* check error code ********************voID Check(FT_Error ErrCode,const char* OKMsg,const char* ErrMsg){  if(ErrCode != 0)  {std::cout << ErrMsg << ": " << ErrCode << "\n";std::cout << "program halted\n";exit(1);  }  else    std::cout << OKMsg << "\n";  }//******************** get outline ************************int Getoutline(FT_Glyph glyph,FT_OutlineGlyph* Outg){  int Err = 0;  switch ( glyph->format )  {    case FT_GLYPH_FORMAT_BITMAP:      Err = 1;      break;    case FT_GLYPH_FORMAT_OUTliNE:      *Outg = (FT_OutlineGlyph)glyph;      break;    default:      ;  }  return Err;}//*********** print outline  to console ***************int PrintOutline(FT_OutlineGlyph Outg){int Err = 0;FT_Outline* ol = &Outg->outline;int Start = 0;                   //start index of contourint End = 0;                     //end index of contourshort* pContEnd = ol->contours;  //pointer to contour endFT_Vector* pPoint = ol->points;  //pointer to outline point    char* pFlag = ol->Tags;          //pointer to flagfor(int c = 0; c < ol->n_contours; c++){    std::cout << "\nContour " << c << ":\n";    End = *pContEnd++;    for(int p = Start; p <= End; p++)    {        char Ch = *pFlag++ + '0';        std::cout << "Point " << p <<": X=" << pPoint->x << " Y="<<pPoint->y << " Flag=" << Ch << "\n";        pPoint++;    }    Start = End + 1;} return Err;}//*********** get glyph index from command line ************* FT_UInt GetGlyphIndex(int argc,char* argv[],int Nr) {if(argc > Nr){  return atoi(argv[Nr]);}else{  return 36;} } //*********** get Font name from command line ************* voID GetFontname(int argc,int Nr,std::string& Fontname) {if(argc > Nr){  Fontname += argv[Nr]; }else{  Fontname += "FreeMono.ttf";} }  //*********** get Font size from command line ************* int GetFontSize(int argc,int Nr) {   short FontSize = 50 * 64;   if(argc > Nr)     FontSize += atoi(argv[Nr]);    return FontSize; } //******************** M A I N ************************// par1: Fontname,par2:Glyph-Nr,par3: FontSize as FT_F26Dot6int main(int argc,char* argv[]){  FT_Face face;  FT_library    library;  FT_Error error;  error = FT_Init_FreeType( &library );  Check(error,"","error initializing FT lib");  std::string Fontname;  Fontname = "/usr/share/Fonts/truetype/freeFont/";  GetFontname(argc,argv,1,Fontname);  error = FT_New_Face( library,Fontname.c_str(),&face );     Check(error,"error loading Font");  FT_F26Dot6 Font_size = GetFontSize(argc,3);  error = FT_Set_Char_Size( face,Font_size,72,72 );  Check(error,"error setting char size");  FT_UInt   glyph_index = GetGlyphIndex(argc,2);  FT_Int32  load_flags = FT_LOAD_DEFAulT;     error = FT_Load_Glyph( face,glyph_index,load_flags );        Check(error,"error loading glyph");  FT_Glyph glyph;   error = FT_Get_Glyph( face->glyph,&glyph );    Check(error,"error getting glyph");  FT_OutlineGlyph Outg;  error = Getoutline(glyph,&Outg);  Check(error,"error getting outline");   std::cout << "=======================================================\n";  std::cout << "Font: " << Fontname << "\n";  std::cout << "Glyph Index: " << glyph_index << "\n";  std::cout << "=======================================================\n";  error = PrintOutline(Outg);  Check(error,"error printing outline");   return 0;  }

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