حذف جميع الكيانات داخل مستطيل
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]كيف تحذف جميع الكيانات داخل مستطيل
المشكلة: كيف تحذف جميع الكيانات داخل مستطيل (CADNET-1351).
نصائح: يتطلب هذا الحصول على جميع الكيانات، ثم إيجاد مستطيل لها، ثم التحقق مما إذا كانت الكيان في المستطيل الذي تريده وحذفه.
مثال:
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cadImage.GetBounds(); | |
foreach (CadBaseEntity entity in cadImage.Entities) | |
{ | |
if (entity.TypeName == CadEntityTypeName.TEXT) | |
{ | |
System.Console.WriteLine(entity.Bounds[0].X + " " + entity.Bounds[0].Y + " " + entity.Bounds[0].Z + " " + entity.Bounds[1].X + " " + entity.Bounds[1].Y + " " + entity.Bounds[1].Z); | |
} | |
} | |
DeleteAllEntities(cadImage, new Rect(new PointF(77, 29), new PointF(128, 49))); | |
private static void DeleteAllEntities(CadImage cadImage, Rect rectangle) | |
{ | |
foreach (CadBaseEntity baseEntity in cadImage.Entities) | |
{ | |
if (baseEntity.LayerName != "0") | |
{ | |
continue; | |
} | |
if (baseEntity.SpaceMode != CadEntitySpaceMode.ModelSpace) | |
{ | |
continue; | |
} | |
List<Cad3DPoint> entityBounds = baseEntity.Bounds; | |
PointF minPoint = new PointF((float)entityBounds[0].X, (float)entityBounds[0].Y); | |
PointF maxPoint = new PointF((float)entityBounds[1].X, (float)entityBounds[1].Y); | |
Rect entityRect = new Rect(minPoint, maxPoint); | |
if (rectangle.Contains(entityRect)) | |
{ | |
cadImage.RemoveEntity(baseEntity); | |
} | |
} | |
} | |
private class Rect | |
{ | |
public PointF Min; | |
public PointF Max; | |
public Rect(PointF min, PointF max) | |
{ | |
this.Min = min; | |
this.Max = max; | |
} | |
public bool Contains(Rect rect) | |
{ | |
return this.Min.X <= rect.Min.X && this.Max.X >= rect.Max.X && this.Min.Y <= rect.Min.Y | |
&& this.Max.Y >= rect.Max.Y; | |
} | |
} |