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C3D-0030 · Read SEWER_LINE geometry [SEW-LINES] done

Read-only: every entity on SEWER_LINE with endpoints and length, to place a length label on each.

C# payload

// READ-ONLY: current SEWER_LINE geometry, so a length label can be put on each line.
var ms = (BlockTableRecord)Tx.GetObject(SymbolUtilityServices.GetBlockModelSpaceId(Db), OpenMode.ForRead);
int n = 0; double tot = 0;
foreach (ObjectId id in ms)
{
    var e = Tx.GetObject(id, OpenMode.ForRead) as Autodesk.AutoCAD.DatabaseServices.Entity;
    if (e == null || e.Layer != "SEWER_LINE") continue;
    var ln = e as Line;
    if (ln != null) {
        n++; tot += ln.Length;
        Log("LINE|" + e.Handle + "|" + ln.StartPoint.X.ToString("F3") + "|" + ln.StartPoint.Y.ToString("F3") +
            "|" + ln.EndPoint.X.ToString("F3") + "|" + ln.EndPoint.Y.ToString("F3") + "|" + ln.Length.ToString("F2"));
        continue;
    }
    var pl = e as Polyline;
    if (pl != null) {
        n++; tot += pl.Length;
        Log("PLINE|" + e.Handle + "|verts=" + pl.NumberOfVertices + "|len=" + pl.Length.ToString("F2"));
        continue;
    }
    Log("OTHER|" + e.GetType().Name + "|" + e.Handle);
}
Log("total " + n + " entit(ies), " + tot.ToString("F2") + " ft");

Result

LINE|2E95F|2296651.991|1280058.103|2296651.969|1280046.037|12.07
LINE|2EC86|2296379.845|1279953.525|2296511.251|1279951.450|132.52
LINE|2EC87|2296511.251|1279951.450|2296604.647|1280046.202|133.21
LINE|2EC88|2296549.935|1280052.775|2296604.647|1280046.202|55.14
LINE|2EC89|2296604.647|1280046.202|2296690.956|1280045.901|86.31
LINE|2EC8A|2296690.956|1280045.901|2296714.067|1280025.298|30.97
LINE|2EC8B|2296714.067|1280025.298|2296827.248|1280095.994|133.46
LINE|2EC8C|2296827.248|1280095.994|2296878.692|1280034.217|80.46
LINE|2EC8D|2296878.692|1280034.217|2296980.451|1279912.310|161.58
LINE|2EC8E|2296980.451|1279912.310|2297249.930|1279675.241|359.02
LINE|2EC8F|2297249.930|1279675.241|2297269.034|1279597.724|80.02
LINE|2EC90|2297269.034|1279597.724|2297422.962|1279618.776|155.37
LINE|2EC91|2297422.962|1279618.776|2297424.707|1279599.322|19.54
LINE|2EC92|2296685.187|1280052.355|2296690.956|1280045.901|8.66
total 14 entit(ies), 1448.33 ft