| public static CovertFromAPI ( DisplayUnitType to, double value ) : double | ||
| to | DisplayUnitType | DisplayUnitType indicates unit of target value |
| value | double | value get from RevitAPI |
| return | double | |
/// <summary>
/// Used to a new item in the dataGridView control.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void addButton_Click(object sender, EventArgs e)
{
System.String newLevelName;
double newLevelElevation;
//If it exists some Levels on Revit,
//the added item's Name and Elevation uses last a Level's Name and Elevation.
//Otherwise it uses a default data.
if (bindingSource1.Count > 0)
{
bindingSource1.MoveLast();
LevelsDataSource lastItem = bindingSource1.Current as LevelsDataSource;
System.String lastLevelName = lastItem.Name;
double lastLevelElevation = lastItem.Elevation;
newLevelName = lastLevelName + "'";
newLevelElevation = lastLevelElevation + Unit.CovertFromAPI(m_objectReference.UnitType, 10);
}
else
{
newLevelName = "Level" + " " + "1";
newLevelElevation = 0;
}
LevelsDataSource newLevel = new LevelsDataSource();
newLevel.Name = newLevelName;
newLevel.Elevation = newLevelElevation;
bindingSource1.Add(newLevel);
}
/// <summary>
/// Implement this method as an external command for Revit.
/// </summary>
/// <param name="revit">An object that is passed to the external application
/// which contains data related to the command,
/// such as the application object and active view.</param>
/// <param name="message">A message that can be set by the external application
/// which will be displayed if a failure or cancellation is returned by
/// the external command.</param>
/// <param name="elements">A set of elements to which the external application
/// can add elements that are to be highlighted in case of failure or cancellation.</param>
/// <returns>Return the status of the external command.
/// A result of Succeeded means that the API external method functioned as expected.
/// Cancelled can be used to signify that the user cancelled the external operation
/// at some point. Failure should be returned if the application is unable to proceed with
/// the operation.</returns>
public Autodesk.Revit.UI.Result Execute(ExternalCommandData revit, ref String message, Autodesk.Revit.DB.ElementSet elements)
{
m_revit = revit;
UnitType = m_revit.Application.ActiveUIDocument.Document.GetUnits().GetFormatOptions(Autodesk.Revit.DB.UnitType.UT_Length).DisplayUnits;
Transaction documentTransaction = new Transaction(revit.Application.ActiveUIDocument.Document, "Document");
documentTransaction.Start();
try
{
//Get every level by iterating through all elements
systemLevelsDatum = new List <LevelsDataSource>();
FilteredElementCollector collector = new FilteredElementCollector(m_revit.Application.ActiveUIDocument.Document);
ICollection <Element> collection = collector.OfClass(typeof(Level)).ToElements();
foreach (Element element in collection)
{
Level systemLevel = element as Level;
LevelsDataSource levelsDataSourceRow = new LevelsDataSource();
levelsDataSourceRow.LevelIDValue = systemLevel.Id.IntegerValue;
levelsDataSourceRow.Name = systemLevel.Name;
Parameter elevationPara = systemLevel.get_Parameter(BuiltInParameter.LEVEL_ELEV);
double temValue = Unit.CovertFromAPI(UnitType, elevationPara.AsDouble());
double temValue2 = double.Parse(temValue.ToString("#.0"));
levelsDataSourceRow.Elevation = temValue2;
systemLevelsDatum.Add(levelsDataSourceRow);
}
using (LevelsForm displayForm = new LevelsForm(this))
{
displayForm.ShowDialog();
}
}
catch (Exception ex)
{
message = ex.Message;
documentTransaction.RollBack();
return(Autodesk.Revit.UI.Result.Failed);
}
documentTransaction.Commit();
return(Autodesk.Revit.UI.Result.Succeeded);
}