Author Topic: Hi. reciving location info about objects (Read 2631 times)

schaap · « **on:** June 04, 2011, 01:26:56 PM »

hi,

i want to write a command in C# that alow user to do 2 things:
1. choose a layer to work on
2. make a list/table of all objects in that layer, and their X Y coordinates.

for example - if a DWG file contain few layers, one of them has names (and only names). there are ~1500 objacts (text type) in that layer. every objact have a string (100,101,...,1350,1351...) and locating (X and Y). I want to be able to pick this layer, then bild a text file like this: (name X Y)
100 20456 40789
101 20344 40348
102 21034 40456
.
.
.

its dont has to be sorted. how do I do it? can you give me the solution or any lift to proggress?

thanks :)

schaap.

(gile) · « **Reply #1 on:** June 04, 2011, 07:11:57 PM »

A way to this is:
- make a selection set (Editor.SelectAll() method) with a SelectionFilter to get all DBText objects on the specified layer.
- instanciate a System.IO.StreamWriter with the file you want to create.
- within a Transaction, open every seleted object and write a line (WriteLine() method) in the file with the text TextString and the text Position.X and Position.Y.

Post what you've written yet so that it'll be easier to help you.

schaap · « **Reply #2 on:** June 05, 2011, 07:54:28 AM »

hi, thanks for helping.

I'm a newbi, Dont really know where to start with your link.

I found the EATTEXT command witch gives me what I need, but in a manual way (export to excel, then sorting and filtering...). I want to write a script that does it, so I'll have a data structure thats holds all that data' for more calculations and proccesing.

were do I start?

fixo · « **Reply #3 on:** June 23, 2011, 08:58:59 PM »

Try this code

Code: [Select]

      [CommandMethod("txtdata", CommandFlags.Modal | CommandFlags.UsePickSet)]
        public void TextDataExtraction()
          {
              StringBuilder sb = new StringBuilder();
              List<string[]> data = new List<string[]>();
            // get active drawing
            Document doc = Autodesk.AutoCAD.ApplicationServices.Application.DocumentManager.MdiActiveDocument;
            // get document editor
            Editor ed = doc.Editor;
            // build selection filter , put layers you need, separated by commas 
            //SelectionFilter sfilter= new SelectionFilter(new TypedValue[]{new TypedValue(0,"text"),new TypedValue(8,"Layer1,Layer2,Layer999")});
            // to select all text on all alyers you have to elimminate second typedvalue from filter:
            SelectionFilter sfilter = new SelectionFilter(new TypedValue[] { new TypedValue(0, "text") });
            // request for objects to be selected in the whole drawing 
            PromptSelectionResult res = ed.SelectAll(sfilter);
            try
            {
                //check on valid selection result
                if (res.Status == PromptStatus.OK)
                {
                    //get object transaction 
                    using (Transaction tr = doc.TransactionManager.StartTransaction())
                    {
                        foreach (ObjectId id in res.Value.GetObjectIds())
                        {
                            Entity ent = tr.GetObject(id, OpenMode.ForRead, false) as Entity;

                            DBText txt = ent as DBText;

                            if (txt != null)
                            {
                                //if text has an empty string it will be replaced with "---"
                                string record = string.Format("{0}\t{1:f2}\t{2:f2}\n", txt.TextString == "" ? "---" : txt.TextString, txt.Position.X, txt.Position.Y);
                                //add record to string builder
                                sb.Append(record);
                                string[] item = new string[3];
                                item[0] = txt.TextString == "" ? "---" : txt.TextString;//<--- if text has an empty string it will be replaced with "---"
                                item[1] = string.Format("{0:f3}", txt.Position.X);//<--- precision 3 decimals
                                item[2] = string.Format("{0:f3}", txt.Position.Y);//<--- precision 3 decimals
                                data.Add(item);
                            }
                        }

                        //write data to CSV file
                        using (StreamWriter sw = new StreamWriter(@"C:\Test\TextRecords.csv")) //<---change file name here
                        {

                                foreach ( string[] record in data)
                            {
                                // create tab delimited string
                                string line = string.Format("{0}\t{1:f2}\t{2:f2}", record[0], record[1], record[2]);
                                sw.WriteLine(line);

                            }
                            sw.Close();
                        }


                        tr.Commit();
                    }
                }
            }
            catch (Autodesk.AutoCAD.Runtime.Exception ex)
            {
                ed.WriteMessage("\n" + ex.Message + "\n" + ex.Source + "\n" + ex.StackTrace);
            }
        }

Hi. reciving location info about objects