static List <ElevationBox> BuildElevationBoxesFrom(
Transaction transaction,
List <ObjectId> boxes,
List <ObjectId> labels)
{
var elevationBoxes = new List <ElevationBox>();
foreach (var box in boxes)
{
var polyline = transaction.GetObject(box, OpenMode.ForRead) as Polyline;
foreach (var label in labels)
{
var mtext = transaction.GetObject(label, OpenMode.ForRead) as MText;
if (mtext == null)
{
continue;
}
for (int i = 0; i < polyline.NumberOfVertices; i++)
{
if (PointExtensions.IsNear(mtext.Location, polyline.GetPoint3dAt(i)) &&
!elevationBoxes.Exists(b => b.Id == polyline.Id))
{
var match = Regex.Match(
mtext.Text,
@"Elevation (\d+)",
RegexOptions.IgnoreCase);
if (!match.Success)
{
continue;
}
int elevation = int.Parse(match.Groups[1].Value);
var b = new ElevationBox(polyline)
{
Id = polyline.Id,
Elevation = elevation
};
b.SetSides(polyline);
elevationBoxes.Add(b);
continue;
}
}
}
}
return(elevationBoxes);
}
