public void Test()
{
var acDoc = AcadApp.Application.DocumentManager.MdiActiveDocument;
var acDb = acDoc.Database;
var ed = acDoc.Editor;
// build a selection filter to get only measurable entities
var filter = new SelectionFilter(new[]
{
new TypedValue(-4, "<OR"),
new TypedValue(0, "ARC,CIRCLE,ELLIPSE,LINE,LWPOLYLINE,SPLINE"),
new TypedValue(-4, "<AND"),
new TypedValue(0, "POLYLINE"), // polylines 2d or 3d
new TypedValue(-4, "<NOT"), // but not meshes
new TypedValue(-4, "&"),
new TypedValue(70, 112),
new TypedValue(-4, "NOT>"),
new TypedValue(-4, "AND>"),
new TypedValue(-4, "OR>")
});
var selection = ed.GetSelection(filter);
if (selection.Status != PromptStatus.OK)
{
return;
}
var watch = System.Diagnostics.Stopwatch.StartNew();
using (var tr = acDb.TransactionManager.StartTransaction())
{
// use Linq queries to get lengths by type in a dictionary
var lengths = selection.Value
.Cast <SelectedObject>()
.Select(selObj => (Curve)tr.GetObject(selObj.ObjectId, OpenMode.ForRead))
.ToLookup(curve => curve.GetType().Name, // <- key selector
curve => curve.GetDistanceAtParameter(curve.EndParam)) // <- element selector
.ToDictionary(group => group.Key, // <- key selector
group => group.Sum()); // <- element selector
// print results
foreach (var entry in lengths)
{
ed.WriteMessage($"\n{entry.Key,-12} = {entry.Value,9:0.00}");
}
ed.WriteMessage($"\nTotal Length = {lengths.Values.Sum(),9:0.00}");
tr.Commit();
}
AcadApp.Application.DisplayTextScreen = false;
watch.Stop();
AcadFuncs.GetEditor().WriteMessage(watch.ElapsedMilliseconds.ToString());
}
static public List <ObjectId> PickEnts()
{
using (AcadApp.Application.DocumentManager.MdiActiveDocument.LockDocument())
{
using (Transaction tr = AcadFuncs.GetActiveDoc().TransactionManager.StartTransaction())
{
PromptSelectionResult prmpt_ret = AcadFuncs.GetEditor().GetSelection();
if (PromptStatus.Cancel == prmpt_ret.Status)
{
tr.Abort();
tr.Dispose();
return(new List <ObjectId>());
}
tr.Commit();
return(prmpt_ret.Value.GetObjectIds().ToList());
}
}
}