Convert text to mesh

Following code presents example of converting text to mesh

• C++

  #include <MRMesh/MRMesh.h>
  #include <MRMesh/MRMeshSave.h>
  #include <MRSymbolMesh/MRSymbolMesh.h>
   
  #include <iostream>
   
  int main( int argc, char* argv[] )
  {
      if ( argc < 3 )
      {
          std::cerr << "Usage: MeshFromText fontpath text" << std::endl;
          return EXIT_FAILURE;
      }
      const auto* fontPath = argv[1];
      const auto* text = argv[2];
   
      // set text-to-mesh parameters
      MR::SymbolMeshParams params {
          // input text
          .text = text,
          // font file name
          .pathToFontFile = fontPath,
      };
      auto convRes = MR::createSymbolsMesh( params );
      if ( !convRes )
      {
          std::cerr << "Failed to convert text to mesh: " << convRes.error() << std::endl;
          return EXIT_FAILURE;
      }
   
      auto saveRes = MR::MeshSave::toAnySupportedFormat( *convRes, "mesh.ply" );
      if ( !saveRes )
      {
          std::cerr << "Failed to save result: " << saveRes.error() << std::endl;
          return EXIT_FAILURE;
      }
   
      return EXIT_SUCCESS;
  }

  See also

  MR::createSymbolsMesh

• Python

  import sys
   
  import meshlib.mrmeshpy as mrmeshpy
   
  if len(sys.argv) < 3:
      print("Usage: ./MeshFromText fontpath text", file=sys.stderr)
      sys.exit(1)
   
  font_path = sys.argv[1]
  text = sys.argv[2]
   
  params = mrmeshpy.SymbolMeshParams()
  params.text = text
  params.pathToFontFile = font_path
  try:
      conv_res = mrmeshpy.createSymbolsMesh(params)
  except ValueError as e:
      print(f"Failed to convert text to mesh: {e}", file=sys.stderr)
      sys.exit(1)
   
  mrmeshpy.saveMesh(conv_res, "mesh.ply")

• C

  #include <MRCSymbolMesh/MRSymbolMesh.h>
  #include <MRCMesh/MRMeshSave.h>
  #include <MRCMisc/expected_MR_Mesh_std_string.h>
  #include <MRCMisc/expected_void_std_string.h>
  #include <MRCMisc/std_string.h>
   
  #include <stdio.h>
  #include <stdlib.h>
  #include <string.h>
   
  int main( int argc, char** argv )
  {
      int rc = EXIT_FAILURE;
      if ( argc < 3 )
      {
          fprintf( stderr, "Usage: MeshFromText fontpath text" );
          goto bad_usage;
      }
   
      MR_SymbolMeshParams* params = MR_SymbolMeshParams_DefaultConstruct();
      MR_SymbolMeshParams_Set_text( params, argv[2], NULL );
      MR_SymbolMeshParams_Set_pathToFontFile( params, argv[1], NULL );
   
      MR_expected_MR_Mesh_std_string* convRes = MR_createSymbolsMesh( params );
      MR_Mesh* mesh = MR_expected_MR_Mesh_std_string_GetMutableValue( convRes );
      if ( !mesh )
      {
          fprintf( stderr, "Failed to convert text to mesh: %s\n", MR_std_string_Data( MR_expected_MR_Mesh_std_string_GetError( convRes ) ) );
          goto fail_conv;
      }
   
      MR_expected_void_std_string* saveEx = MR_MeshSave_toAnySupportedFormat_3( mesh, "mesh.ply", NULL, NULL );
      if ( MR_expected_void_std_string_GetError( saveEx ) )
      {
          fprintf( stderr, "Failed to save mesh: %s\n", MR_std_string_Data( MR_expected_void_std_string_GetError( saveEx ) ) );
          goto fail_save; // error while saving file
      }
   
      rc = EXIT_SUCCESS;
  fail_save:
      MR_expected_void_std_string_Destroy( saveEx );
   
  fail_conv:
      MR_expected_MR_Mesh_std_string_Destroy( convRes );
      MR_SymbolMeshParams_Destroy( params );
  bad_usage:
      return rc;
  }