How can I fetch the mtext that is in my dwg file using aspose.cad for dot net

Aspose.CAD Product Family
1

How can I fetch the mtext that is in my dwg file using aspose.cad for dot net. i dont want any metadata. i only want the text that is visible in the drawing.

2

@Asheesh32

To fetch the visible text (mtext) from a DWG file using Aspose.CAD for .NET, you can utilize the CadImage class to load your DWG file and then iterate through its entities to extract the text. Below is a sample code snippet that demonstrates how to achieve this:

using System;
using Aspose.CAD;
using Aspose.CAD.FileFormats.Cad.CadObjects;

namespace Aspose.CAD.Examples
{
    public class ExtractMText
    {
        public static void Run()
        {
            // Specify the path to your DWG file
            string sourceFilePath = "path_to_your_file.dwg";

            // Load the DWG file as a CadImage
            using (CadImage cadImage = (CadImage)Image.Load(sourceFilePath))
            {
                // Iterate through all entities in the DWG file
                foreach (CadEntityBase entity in cadImage.Entities)
                {
                    ExtractText(entity);
                }

                // Optionally, you can also check block entities
                foreach (CadBlockEntity blockEntity in cadImage.BlockEntities.Values)
                {
                    foreach (CadEntityBase entity in blockEntity.Entities)
                    {
                        ExtractText(entity);
                    }
                }
            }
        }

        private static void ExtractText(CadEntityBase obj)
        {
            // Check the type of the entity and extract text accordingly
            switch (obj.TypeName)
            {
                case CadEntityTypeName.MTEXT:
                    CadMText mText = (CadMText)obj;
                    Console.WriteLine(mText.Text); // Output the visible mtext
                    break;

                // You can also handle other text types if needed
                case CadEntityTypeName.TEXT:
                    CadText text = (CadText)obj;
                    Console.WriteLine(text.DefaultValue); // Output the visible text
                    break;

                // Handle nested entities if necessary
                case CadEntityTypeName.INSERT:
                    CadInsertObject insertObject = (CadInsertObject)obj;
                    foreach (var child in insertObject.ChildObjects)
                    {
                        ExtractText(child);
                    }
                    break;
            }
        }
    }
}

In this code:

  • The CadImage class is used to load the DWG file.
  • The ExtractText method checks the type of each entity and prints the text for MTEXT and TEXT entities.
  • You can also handle nested entities by checking for INSERT types.

Make sure to replace "path_to_your_file.dwg" with the actual path to your DWG file. This approach will help you extract only the visible text from your drawing without any metadata.