| Article | 60001245 |
| Type | Wish |
| Product | Engine |
| Version | 6018 |
| Date Added | 10/13/2010 |
| Fixed | Yes [10/13/2010] |
| Submitted by | stavros meimaroglou |
| Keywords |
In version 6019 new sort methods was added in vdArray object and vdEntities collection
VectorDraw.Generics.vdArray<T> sort methods
/// <summary>
/// Sorts the elements in an entire collection using the <see cref="System.IComparable<T>"/>
/// generic interface implementation of each element of the System.Array.
/// </summary>
/// <exception cref="System.InvalidOperationException">One or more elements in array do not implement the <see cref="System.IComparable<T>"/> generic interface.</exception>
public void Sort()
example:
sort items in a collection of doubles
vdArray<double> collectionOfDoubles = new vdArray<double>();
collectionOfDoubles.AddItem(5);
collectionOfDoubles.AddItem(15);
collectionOfDoubles.AddItem(2);
collectionOfDoubles.AddItem(8);
collectionOfDoubles.AddItem(3);
//sort the items from smaller value to bigger
collectionOfDoubles.Sort();
//the values will be take the following order
//2 ,3, 5, 8, 15
/// <summary>
/// Sorts the elements in a range of elements in entire collection using the specified
/// <see cref="System.Collections.Generic.IComparer<T>"/> generic interface.
/// </summary>
/// <param name="comparer">
/// The <see cref="System.Collections.Generic.IComparer<T>"/> generic interface implementation
/// to use when comparing elements, or null to use the <see cref="System.IComparable<T>"/>
/// generic interface implementation of each element.
/// </param>
/// <exception cref="System.ArgumentException">
/// The implementation of comparer caused an error during the sort.
/// For example, comparer might not return 0 when comparing an item with itself.
/// </exception>
/// <exception cref="System.InvalidOperationException">
/// comparer is null, and one or more elements in array do not implement the <see cref="System.IComparable<T>"/> generic interface
/// </exception>
public void Sort(IComparer<T> comparer)
example:
sort items in a collection of gPoints depend of their distance from an origin point.
private class OriginComparer : System.Collections.Generic.IComparer<gPoint>
{
gPoint mOrigin;
public OriginComparer(gPoint Origin)
{
mOrigin = Origin;
}
public int Compare(gPoint x, gPoint y)
{
double dif = x.Distance3D(mOrigin) - y.Distance3D(mOrigin);
if (dif == 0.0d) return 0;
if (dif > 0.0d) return 1;
else return -1;
}
}
vdArray<gPoint> collectionOfPoints = new vdArray<gPoint>();
collectionOfPoints.AddItem(new gPoint(5,0,0));
collectionOfPoints.AddItem(new gPoint(15, 0, 0));
collectionOfPoints.AddItem(new gPoint(2, 0, 0));
collectionOfPoints.AddItem(new gPoint(8, 0, 0));
collectionOfPoints.AddItem(new gPoint(3, 0, 0));
//sort the items from smaller to bigger depend of their distance from point(0,0,0)
collectionOfPoints.Sort(new OriginComparer(new gPoint(0, 0, 0)));
//the values will be take the following order
//(2,0,0) ,(3,0,0), (5,0,0), (8,0,0), (15,0,0)
VectorDraw.Professional.vdCollections.vdEntities sort methods
/// <summary>
/// Sorts the elements in a range of elements in entire collection using the specified
/// <see cref="System.Collections.Generic.IComparer<vdFigure>"/> generic interface.
/// </summary>
/// <param name="comparer">
/// The <see cref="System.Collections.Generic.IComparer<vdFigure>"/> generic interface implementation
/// to use when comparing elements, or null to use the <see cref="System.IComparable<vdFigure>"/>
/// generic interface implementation of each element.
/// </param>
/// <exception cref="System.ArgumentException">
/// The implementation of comparer caused an error during the sort.
/// For example, comparer might not return 0 when comparing an item with itself.
/// </exception>
/// <exception cref="System.InvalidOperationException">
/// comparer is null, and one or more elements in array do not implement the <see cref="System.IComparable<vdFigure>"/> generic interface
/// </exception>
public void Sort(IComparer<vdFigure> comparer)
example:
sort items in vdEntities collection depend of their Layer name.
//a class object that used to compare to vdFigure depend of the Layer Name
private class FigureLayerComparer : System.Collections.Generic.IComparer<vdFigure>
{
public FigureLayerComparer()
{
}
public int Compare(vdFigure fig1, vdFigure fig2)
{
return System.StringComparer.InvariantCultureIgnoreCase.Compare(fig1.Layer.ToString(), fig2.Layer.ToString());
}
}
//Create 4 layers and add them into the Layers collection of a vdDocument object
vdLayer lay1 = doc.Layers.Add("1");
vdLayer lay2 = doc.Layers.Add("2");
vdLayer lay3 = doc.Layers.Add("3");
vdLayer lay4 = doc.Layers.Add("4");
//create a new vdLine object that belong to Layer with name "3"
vdLine l1 = new vdLine();
l1.SetUnRegisterDocument(doc);
l1.setDocumentDefaults();
l1.Layer = lay3;
//create a new vdLine object that belong to Layer with name "1"
vdLine l2 = new vdLine();
l2.SetUnRegisterDocument(doc);
l2.setDocumentDefaults();
l2.Layer = lay1;
//create a new vdLine object that belong to Layer with name "4"
vdLine l3 = new vdLine();
l3.SetUnRegisterDocument(doc);
l3.setDocumentDefaults();
l3.Layer = lay4;
//create a new vdLine object that belong to Layer with name "2"
vdLine l4 = new vdLine();
l4.SetUnRegisterDocument(doc);
l4.setDocumentDefaults();
l4.Layer = lay2;
//add the new vdlines to vdDocument Model Entities collection
doc.Model.Entities.AddItem(l1);
doc.Model.Entities.AddItem(l2);
doc.Model.Entities.AddItem(l3);
doc.Model.Entities.AddItem(l4);
//change the order of items in the collection so the items of layer "1" to be first in the collection folow by items in layer "2" , "3" and "4" at the end of the collection
doc.Model.Entities.Sort(new FigureLayerComparer());