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Developers can embed (Excel) .NetMap components into their own applications.  Building a .NetMap application?  Discuss it here!

In general, you can embed Windows Forms controls in WPF applications via the WindowsFormsHost control.  I haven't tried this with NetMapControl, which is .NetMap's Windows Forms control.  If anyone tries it, please let us know how it works by posting here.

-- Tony

Hi all,

I've played a bit with the .NetMap libs today in a winform app and I must say I really like it.
Thing is, i want to set a different color for one particular vertex and just to keep things simple, i've used the sample code from the help file:

             using System;
             using System.Windows.Forms;
             using Microsoft.NetMap.Visualization;
             using Microsoft.NetMap.Core;
             
             namespace WindowsFormsApplication1
             {
             public partial class Form1 : Form
             {
                 public Form1()
                 {
                     InitializeComponent();
                 
                     oNetMapControl.BeginUpdate();
                 
                     // Get the graph's vertex collection.
                 
                     IVertexCollection oVertices = oNetMapControl.Graph.Vertices;
                 
                     // Add three vertices.
                 
                     IVertex oVertexA = oVertices.Add();
                     IVertex oVertexB = oVertices.Add();
                     IVertex oVertexC = oVertices.Add();
                    
                     // Change vertex color..
                     oVertexA.SetValue(ReservedMetadataKeys.PerColor, Color.Purple);
                 
                     // Get the graph's edge collection.
                 
                     IEdgeCollection oEdges = oNetMapControl.Graph.Edges;
                 
                     // Connect the vertices with edges.
                 
                     oEdges.Add(oVertexA, oVertexB);
                     oEdges.Add(oVertexB, oVertexC);
                     oEdges.Add(oVertexC, oVertexA);
                 
                     oNetMapControl.EndUpdate();
                 }
             }
                 
             }

As you can see in the code I want to change the color of oVertexA to purple, but when i run this sample, it will just show me 3 black vertices:(. I also tried to create the vertex first and then add it, but that won't work either..:

            Vertex oVertexA = new Vertex();
            oVertexA.SetValue(ReservedMetadataKeys.PerColor, Color.Purple);
            oVertices.Add(oVertexA);

Any ideas?

Thanks in advance.

David

Here is a slightly modified version of the above code.  It's the version I'm putting into the documentation.

-- Tony

using System;
using System.Windows.Forms;
using System.Drawing;
using Microsoft.NetMap.Visualization;
using Microsoft.NetMap.Core;

namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();

        netMapControl1.BeginUpdate();

        // The default vertex drawer draws all vertices with the same
        // color, radius, and shape.  Replace it with one that will vary
        // the appearance of each vertex based on metadata values stored in
        // the vertices.  (Note that there are also PerVertexWithLabel and
        // PerVertexWithImage drawers that do the same thing and more.)

        netMapControl1.VertexDrawer = new PerVertexDrawer();

        // Replace the default edge drawer with one that will vary the
        // color and width of each edge based on metadata values
        // stored in the edges.  (Note that there are also
        // PerEdgeWithLabel and PerEdgeWithImage drawers that do the
        // same thing and more.)

        netMapControl1.EdgeDrawer = new PerEdgeDrawer();

        // Get the graph's vertex collection.

        IVertexCollection oVertices = netMapControl1.Graph.Vertices;

        // Add three vertices.

        IVertex oVertexA = oVertices.Add();
        IVertex oVertexB = oVertices.Add();
        IVertex oVertexC = oVertices.Add();

        // Customize their appearance.

        oVertexA.SetValue(ReservedMetadataKeys.PerColor, Color.Blue);
        oVertexA.SetValue(ReservedMetadataKeys.PerVertexRadius, 15F);

        oVertexB.SetValue(ReservedMetadataKeys.PerColor, Color.Orange);
        oVertexB.SetValue(ReservedMetadataKeys.PerVertexRadius, 20F);
        oVertexB.SetValue(ReservedMetadataKeys.PerVertexShape,
            VertexDrawer.VertexShape.Sphere);

        // Get the graph's edge collection.

        IEdgeCollection oEdges = netMapControl1.Graph.Edges;

        // Connect the vertices with directed edges.

        IEdge oEdge1 = oEdges.Add(oVertexA, oVertexB, true);
        IEdge oEdge2 = oEdges.Add(oVertexB, oVertexC, true);
        IEdge oEdge3 = oEdges.Add(oVertexC, oVertexA, true);

        // Customize their appearance.

        oEdge1.SetValue(ReservedMetadataKeys.PerColor, Color.Chartreuse);
        oEdge1.SetValue(ReservedMetadataKeys.PerEdgeWidth, 3);

        oEdge2.SetValue(ReservedMetadataKeys.PerEdgeWidth, 5);

        oEdge3.SetValue(ReservedMetadataKeys.PerColor, Color.ForestGreen);

        netMapControl1.EndUpdate();
    }
}
}

Hello All,

I am trying to select a vertex programatically. I tried the code listed below but it doesn't work. Any ideas?

using System;
using System.Windows.Forms;
using System.Drawing;
using Microsoft.NetMap.Visualization;
using Microsoft.NetMap.Core;

namespace WindowsFormsApplication1
{
public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();

        netMapControl1.BeginUpdate();

        netMapControl1.VertexDrawer = new PerVertexDrawer();

        netMapControl1.EdgeDrawer = new PerEdgeDrawer();

        // Get the graph's vertex collection.

        IVertexCollection oVertices = netMapControl1.Graph.Vertices;

        // Add three vertices.

        IVertex oVertexA = oVertices.Add();
        IVertex oVertexB = oVertices.Add();
        IVertex oVertexC = oVertices.Add();

        netMapControl1.SetVertexSelected(oVertexA, true, false);

        netMapControl1.EndUpdate();
    }
}
}

Thanks a million.

Great, it worked now. Thank you very much.

David:

The Sugiyama layout doesn't currently support all of the drawing features available with the other layouts, including labels.  We do have a work item to update the layout, but it hasn't been scheduled yet.  (We also have work items to improve the Fruchterman-Reingold layout, and possibly introduce new layout algorithms.)

-- Tony