Sharper.GstarCAD.Extensions 2022.2.0

Sharper.GstarCAD.Extensions

GstarCAD Extension Library

The GstarCAD port of Gile.AutoCAD.Extension. This is an unofficial extension library enhanced for GstarCAD .NET SDK.

You can get GstarCAD SDK on the official website https://www.gstarcad.com/download/, or on the Nuget Gallery.

This library should help to write code in a more concise and declarative way.

Example with a method to erase lines in model space which are smaller than a given distance:

public void EraseShortLines(double minLength)
{
    var db = Application.DocumentManager.MdiActiveDocument.Database;
    using (var tr = db.TransactionManager.StartTransaction())
    {
        var blockTable = (BlockTable)tr.GetObject(db.BlockTableId, OpenMode.ForRead);
        var modelSpace = (BlockTableRecord)tr.GetObject(blockTable[BlockTableRecord.ModelSpace], OpenMode.ForRead);
        var lineClass = RXObject.GetClass(typeof(Line));
        foreach (ObjectId id in modelSpace)
        {
            if (id.ObjectClass == lineClass)
            {
                var line = (Line)tr.GetObject(id, OpenMode.ForRead);
                if (line.Length < minLength)
                {
                    tr.GetObject(id, OpenMode.ForWrite);
                    line.Erase();
                }
            }
        }
        tr.Commit();
    }
}

The same method can be written:

public void EraseShortLines(double minLength)
{
    var db = Active.Database;
    using (var tr = db.TransactionManager.StartTransaction())
    {
        db.GetModelSpace()
            .GetObjects<Line>()
            .Where(line => line.Length < minLength)
            .UpgradeWrite()
            .ForEach(line => line.Erase());
        tr.Commit();
    }
}

Deployment

This library is published as a nuget package in nuget.org.