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C3D-ALLPTS · List all point families error

Read-only: groups all COGO points by description prefix

C# payload

// READ-ONLY: dump every CogoPoint with description, group by description prefix
using System;
using System.Linq;
using System.Collections.Generic;
using Autodesk.Civil.ApplicationServices;
using Autodesk.Civil.DatabaseServices;
using Autodesk.AutoCAD.DatabaseServices;

var db = Db;
var cdoc = CivilDocument.GetCivilDocument(db);
using (var tr = Tx) {
    var pts = cdoc.CogoPoints;
    var byDesc = new Dictionary<string, List<int>>();

    foreach (var ptId in pts) {
        var pt = tr.GetObject(ptId, OpenMode.ForRead) as CogoPoint;
        if (pt == null) continue;
        string desc = pt.Description ?? "";
        string prefix = desc.Split()[0];

        if (!byDesc.ContainsKey(prefix))
            byDesc[prefix] = new List<int>();
        byDesc[prefix].Add(pt.PointNumber);
    }

    Log($"Point families found:");
    foreach (var kv in byDesc.OrderBy(x => x.Key)) {
        Log($"  {kv.Key:20} {kv.Value.Count:3} points  #{kv.Value.Min()}-{kv.Value.Max()}");
    }
}

Result