/// <summary>
/// Перемещение объектов
/// Открытая транзакция не требуется
/// При отмене пользователем - объекты удаляются
/// </summary>
/// <param name="ed"></param>
/// <param name="ids"></param>
/// <param name="pt"></param>
/// <returns></returns>
public static bool Drag(this Editor ed, ObjectId[] ids, Point3d pt)
{
if (ids == null || !ids.Any()) return false;
SelectionSet selSet = SelectionSet.FromObjectIds(ids);
PromptPointResult ppr = ed.Drag(selSet, "\nТочка вставки:", (Point3d ptInput, ref Matrix3d mat) =>
{
if (ptInput.IsEqualTo(pt)) return SamplerStatus.NoChange;
mat = Matrix3d.Displacement(pt.GetVectorTo(ptInput));
//pt = ptInput;
return SamplerStatus.OK;
});
if (ppr.Status == PromptStatus.OK)
{
using (var t = ed.Document.TransactionManager.StartTransaction())
{
foreach (var item in ids)
{
var mat = Matrix3d.Displacement(pt.GetVectorTo(ppr.Value));
var ent = item.GetObject(OpenMode.ForWrite, false, true) as Entity;
ent.TransformBy(mat);
}
t.Commit();
}
return true;
}
else
{
using (var t = ed.Document.TransactionManager.StartTransaction())
{
foreach (var id in ids)
{
var ent = id.GetObject(OpenMode.ForWrite);
ent.Erase();
}
t.Commit();
}
return false;
}
}
public static void SelectHoleToRemoveArea()
{
var holeIds = new ObjectId[0];
ObjectId parcelId = ObjectId.Null;
Document document = Application.DocumentManager.MdiActiveDocument;
document.Editor.WriteMessage("\n选择需要扣除面积的孔洞: ");
var result = StartSelectPolyline(false);
if (result.Status != PromptStatus.OK)
{
return;
}
// 洞
if (result.Value.Count >= 1)
{
holeIds = result.Value.GetObjectIds();
}
// 检查地块是否封闭
using (var tr = document.Database.TransactionManager.StartTransaction())
{
foreach (var objectId in holeIds)
{
var curve = tr.GetObject(objectId, OpenMode.ForRead) as Curve;
if (curve != null && !curve.Closed)
{
document.Editor.WriteMessage("\n错误：选择的孔洞不封闭");
return;
}
}
}
// 外边界
Point3d pickedPoint;
if (!SelectPolylineEntity("\n选择要扣除面积的地块界线: ", "\n实体错误", out parcelId, out pickedPoint) ||
parcelId == ObjectId.Null)
{
return;
}
// 检查地块是否封闭
using (var tr = document.Database.TransactionManager.StartTransaction())
{
var curve = tr.GetObject(parcelId, OpenMode.ForRead) as Curve;
if (curve != null && !curve.Closed)
{
document.Editor.WriteMessage("\n错误：选择的地块界线不封闭");
return;
}
}
// 如果地块是合适的
if (parcelId.IsValid && holeIds.Any())
{
foreach (var objectId in holeIds)
{
if (objectId == parcelId)
{
document.Editor.WriteMessage("\n错误：句柄为{0}的孔洞与地块边界相同", objectId.Handle);
return;
}
if (!WithIn(objectId, parcelId))
{
document.Editor.WriteMessage("\n错误：句柄为{0}的孔洞不在地块边界内部", objectId.Handle);
return;
}
}
// 新增孔洞到地块
var parcel = new ParcelPolygon(parcelId);
parcel.AddHoleIds(holeIds);
document.Editor.WriteMessage("\n将{0}个多边形设定为扣除面积的孔洞", holeIds.Count());
}
}
