By Deepak Nadig In your workflow of using Editor.GetEntity you may sometimes want to retrieve all the co-ordinates of pickpoint used to select the entity. For example consider the following case by constructing a circle at point (0,0,5) and radius 5 on WCS XY-plane with top view. On selecting a... Continue reading

By Deepak Nadig Generating linetype with text on a Polyline entity could result in linetype pattern generated continuously across all vertices as below image. This is because the linetype generation property of Polyline is ON Interactively this can be changed by issuing PEDIT command, setting Ltype gen as Off. Command:... Continue reading

By Deepak Nadig Recently, we had a customer query regarding distinguishing an AutoCAD Mechanical desktop file among a set of drawing files. Answer: Mechanical desktop should have entry named AmdtFileType with a value of 84 in the Custom tab of DWGPROPS(image) One of the ways to distinguish a Autodesk Mechanical... Continue reading

By Deepak Nadig We had an issue raised by a customer regarding setting origin(image) during hatch creation. It was found that origin of hatch has to be set in a transaction other than the one in which it is created for it to work correctly. Below code can be used... Continue reading

By Deepak Nadig We can make use of Brep support to determine the radius and center of a cone( properties shown up in the image image) with circular base. Below .NET code snippet can be used : [CommandMethod("circularConeRadiusAndCenter")] public void circularConeRadiusAndCenter() { Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument; Database db = doc.Database;... Continue reading

By Deepak Nadig We have had many users asking for new versions of wizards that are Visual Studio 2017 compatible to work with AutoCAD 2019. Here they are : AutoCAD ObjectARX 2019 Wizard AutoCAD .NET 2019 Wizard P.S: We will soon have these wizards downloadable from the Tools section of... Continue reading

By Deepak Nadig We recently had a query regarding eNotApplicable runtime exception thrown trying to set ColumnType when MText is created as in the snippet: MText mytext = new MText(); mytext.SetDatabaseDefaults(); mytext.Contents = "mytext"; mytext.Layer = "0"; mytext.ColorIndex = 3; mytext.Location = new Point3d(0.0, 0.0, 0.0); mytext.ColumnType = ColumnType.NoColumns; To... Continue reading

By Deepak Nadig Creating table using the Table.InsertColumns and Table.InsertRows is quite tricky and below are certain scenarios that can be useful : Scenario 1: Using only table.InsertColumns : Along with the specified number of columns, a single default row(without cells) is created at row index 0. Scenario 2: Using... Continue reading

By Deepak Nadig Recently, an ADN partner requested for a method to check if a text is contained in a Linetype before extracting the text. To extract a text, LinetypeTableRecord.TextAt is used and it returns eNotApplicable error when text is not present at index in the record. To avoid this,... Continue reading

By Deepak Nadig This is my first post of 2017 and here is wishing you all a "Happy New Year" :-) Recently, we had a query from an ADN partner: How to roll up a docked and hidden custom PaletteSet using.NET API ? The behaviour the ADN partner is expecting... Continue reading

By Deepak Nadig Here is a blog by Kean Walmsley, which demonstrates Extracting XML data from drawings. To extract data from the selected objects of current drawing, following modification to the code in the Kean's blog is required : 1) Current drawing name and path can be used in place... Continue reading

By Deepak Nadig Here is a sample code to create a simple Polygon mesh using ObjectARX. When AcDbPolygonMesh() constructor is used without any parameters,vertex count in M and N directions has to be set explicitly and it needs to be specified if PolygonMesh is to be open or closed in... Continue reading

By Deepak Nadig Here is a method to add highlight overrules to selected objects only. Interactively on highlighting the objects to which overrules are added,color needs to change The code sample below adds the HighlightOverrrule to selected objects and also enables to set highlight color to each object after adding... Continue reading

By Deepak Nadig Here is a blog by Stephen Preston which explains inserting a block with attributes. Below is a C# code to insert a field to the attribute value of a block. Create a drawing with a block named "test" containing a circle having an attribute definition(tag to be... Continue reading

By Deepak Nadig To define the amount of transparency of a new material, AutoCAD .NET API uses MaterialOpacityComponent Below code adds a new material to Material Library with transparency amount set to 90. [CommandMethod("AddMaterialToLibrary")] public static void AddMaterialToLibrary() { Document doc = Application.DocumentManager.MdiActiveDocument; String sMaterialName = "MyMaterial"; String sTextureMapPath =... Continue reading