About the Draw text on a MapControl Sample
[C#]
DrawText.cs
using System;
using System.Windows.Forms;
using System.Drawing;
using ESRI.ArcGIS.Controls;
using ESRI.ArcGIS.esriSystem;
using ESRI.ArcGIS.SystemUI;
using ESRI.ArcGIS.Geometry;
using ESRI.ArcGIS.Display;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.ADF.COMSupport;
using ESRI.ArcGIS;
namespace DrawText
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
public System.Windows.Forms.TextBox Text1;
public System.Windows.Forms.Label Label1;
public System.Windows.Forms.Button cmdReset;
public System.Windows.Forms.Button cmdFullExtent;
public System.Windows.Forms.Label Label3;
public System.Windows.Forms.Label Label2;
private IPointCollection m_PointCollection;
private IPolyline m_Polyline;
private ESRI.ArcGIS.Controls.AxMapControl axMapControl1;
private ESRI.ArcGIS.Controls.AxLicenseControl axLicenseControl1;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
//Release COM objects
ESRI.ArcGIS.ADF.COMSupport.AOUninitialize.Shutdown();
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));
this.Text1 = new System.Windows.Forms.TextBox();
this.Label1 = new System.Windows.Forms.Label();
this.cmdReset = new System.Windows.Forms.Button();
this.cmdFullExtent = new System.Windows.Forms.Button();
this.Label3 = new System.Windows.Forms.Label();
this.Label2 = new System.Windows.Forms.Label();
this.axMapControl1 = new ESRI.ArcGIS.Controls.AxMapControl();
this.axLicenseControl1 = new ESRI.ArcGIS.Controls.AxLicenseControl();
((System.ComponentModel.ISupportInitialize)(this.axMapControl1)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.axLicenseControl1)).BeginInit();
this.SuspendLayout();
//
// Text1
//
this.Text1.AcceptsReturn = true;
this.Text1.BackColor = System.Drawing.SystemColors.Window;
this.Text1.Cursor = System.Windows.Forms.Cursors.IBeam;
this.Text1.Font = new System.Drawing.Font("Arial", 8F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.Text1.ForeColor = System.Drawing.SystemColors.WindowText;
this.Text1.Location = new System.Drawing.Point(8, 280);
this.Text1.MaxLength = 0;
this.Text1.Name = "Text1";
this.Text1.RightToLeft = System.Windows.Forms.RightToLeft.No;
this.Text1.Size = new System.Drawing.Size(321, 25);
this.Text1.TabIndex = 4;
this.Text1.Text = "Put a map in your app...";
//
// Label1
//
this.Label1.BackColor = System.Drawing.SystemColors.Control;
this.Label1.Cursor = System.Windows.Forms.Cursors.Default;
this.Label1.Font = new System.Drawing.Font("Arial", 8F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.Label1.ForeColor = System.Drawing.SystemColors.ControlText;
this.Label1.Location = new System.Drawing.Point(8, 264);
this.Label1.Name = "Label1";
this.Label1.RightToLeft = System.Windows.Forms.RightToLeft.No;
this.Label1.Size = new System.Drawing.Size(129, 17);
this.Label1.TabIndex = 5;
this.Label1.Text = "Enter text:";
//
// cmdReset
//
this.cmdReset.BackColor = System.Drawing.SystemColors.Control;
this.cmdReset.Cursor = System.Windows.Forms.Cursors.Default;
this.cmdReset.Font = new System.Drawing.Font("Arial", 8F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.cmdReset.ForeColor = System.Drawing.SystemColors.ControlText;
this.cmdReset.Location = new System.Drawing.Point(344, 208);
this.cmdReset.Name = "cmdReset";
this.cmdReset.RightToLeft = System.Windows.Forms.RightToLeft.No;
this.cmdReset.Size = new System.Drawing.Size(73, 25);
this.cmdReset.TabIndex = 7;
this.cmdReset.Text = "Clear Text";
this.cmdReset.UseVisualStyleBackColor = false;
this.cmdReset.Click += new System.EventHandler(this.cmdReset_Click);
//
// cmdFullExtent
//
this.cmdFullExtent.BackColor = System.Drawing.SystemColors.Control;
this.cmdFullExtent.Cursor = System.Windows.Forms.Cursors.Default;
this.cmdFullExtent.Font = new System.Drawing.Font("Arial", 8F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.cmdFullExtent.ForeColor = System.Drawing.SystemColors.ControlText;
this.cmdFullExtent.Location = new System.Drawing.Point(344, 240);
this.cmdFullExtent.Name = "cmdFullExtent";
this.cmdFullExtent.RightToLeft = System.Windows.Forms.RightToLeft.No;
this.cmdFullExtent.Size = new System.Drawing.Size(73, 25);
this.cmdFullExtent.TabIndex = 6;
this.cmdFullExtent.Text = "Full Extent";
this.cmdFullExtent.UseVisualStyleBackColor = false;
this.cmdFullExtent.Click += new System.EventHandler(this.cmdFullExtent_Click);
//
// Label3
//
this.Label3.BackColor = System.Drawing.SystemColors.Control;
this.Label3.Cursor = System.Windows.Forms.Cursors.Default;
this.Label3.Font = new System.Drawing.Font("Arial", 8F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.Label3.ForeColor = System.Drawing.SystemColors.ControlText;
this.Label3.Location = new System.Drawing.Point(344, 72);
this.Label3.Name = "Label3";
this.Label3.RightToLeft = System.Windows.Forms.RightToLeft.No;
this.Label3.Size = new System.Drawing.Size(81, 65);
this.Label3.TabIndex = 8;
this.Label3.Text = "Right mouse button to drag a rectangle to zoom in.";
//
// Label2
//
this.Label2.BackColor = System.Drawing.SystemColors.Control;
this.Label2.Cursor = System.Windows.Forms.Cursors.Default;
this.Label2.Font = new System.Drawing.Font("Arial", 8F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.Label2.ForeColor = System.Drawing.SystemColors.ControlText;
this.Label2.Location = new System.Drawing.Point(344, 8);
this.Label2.Name = "Label2";
this.Label2.RightToLeft = System.Windows.Forms.RightToLeft.No;
this.Label2.Size = new System.Drawing.Size(81, 65);
this.Label2.TabIndex = 9;
this.Label2.Text = "Left mouse button to trace a line to draw text along. ";
//
// axMapControl1
//
this.axMapControl1.Location = new System.Drawing.Point(8, 8);
this.axMapControl1.Name = "axMapControl1";
this.axMapControl1.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("axMapControl1.OcxState")));
this.axMapControl1.Size = new System.Drawing.Size(320, 248);
this.axMapControl1.TabIndex = 10;
this.axMapControl1.OnMouseDown += new ESRI.ArcGIS.Controls.IMapControlEvents2_Ax_OnMouseDownEventHandler(this.axMapControl1_OnMouseDown);
this.axMapControl1.OnAfterDraw += new ESRI.ArcGIS.Controls.IMapControlEvents2_Ax_OnAfterDrawEventHandler(this.axMapControl1_OnAfterDraw);
//
// axLicenseControl1
//
this.axLicenseControl1.Enabled = true;
this.axLicenseControl1.Location = new System.Drawing.Point(347, 140);
this.axLicenseControl1.Name = "axLicenseControl1";
this.axLicenseControl1.OcxState = ((System.Windows.Forms.AxHost.State)(resources.GetObject("axLicenseControl1.OcxState")));
this.axLicenseControl1.Size = new System.Drawing.Size(32, 32);
this.axLicenseControl1.TabIndex = 11;
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(432, 310);
this.Controls.Add(this.axLicenseControl1);
this.Controls.Add(this.axMapControl1);
this.Controls.Add(this.cmdReset);
this.Controls.Add(this.cmdFullExtent);
this.Controls.Add(this.Label3);
this.Controls.Add(this.Label2);
this.Controls.Add(this.Text1);
this.Controls.Add(this.Label1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
((System.ComponentModel.ISupportInitialize)(this.axMapControl1)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.axLicenseControl1)).EndInit();
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
if (!RuntimeManager.Bind(ProductCode.Engine))
{
if (!RuntimeManager.Bind(ProductCode.Desktop))
{
MessageBox.Show("Unable to bind to ArcGIS runtime. Application will be shut down.");
return;
}
}
Application.Run(new Form1());
}
private void Form1_Load(object sender, System.EventArgs e)
{
//Find sample data by navigating two folders up
string sFilePath = @"..\..\..\Data\World\Continents.lyr";
//Add sample 'country' shapefile data
axMapControl1.AddLayerFromFile(sFilePath);
//Set the extent
axMapControl1.Extent = axMapControl1.get_Layer(0).AreaOfInterest;
//Grab hold of the IgeoFeaturelayer interface on the layer
//in the map control in order to symbolize the data
IGeoFeatureLayer geoFeatureLayer = (IGeoFeatureLayer) axMapControl1.get_Layer(0);
//Create a simple renderer and grab hold of ISimpleRenderer interface
ISimpleRenderer simpleRenderer = new SimpleRendererClass();
//Create a fill symbol and grab hold of the ISimpleFillSymbol interface
ISimpleFillSymbol fillSymbol = new SimpleFillSymbolClass();
//Create a line symbol and grab hold of the ISimpleLineSymbol interface
ISimpleLineSymbol lineSymbol = new SimpleLineSymbolClass();
//Assign line symbol and fill symbol properties
lineSymbol.Width = 0.1;
lineSymbol.Color = GetRGBColor(255, 0, 0); //Red
fillSymbol.Outline = lineSymbol;
fillSymbol.Color = GetRGBColor(0, 0, 255); //Blue
//Set the symbol property of the renderer
simpleRenderer.Symbol = (ISymbol) fillSymbol;
//Set the renderer property of the geo feature layer
geoFeatureLayer.Renderer = (IFeatureRenderer) simpleRenderer;
}
private void cmdFullExtent_Click(object sender, System.EventArgs e)
{
//Assign map controls extent property to the full extent of all the layers
axMapControl1.Extent = axMapControl1.FullExtent;
}
private void cmdReset_Click(object sender, System.EventArgs e)
{
//Get rid of the line and points collection
m_Polyline = null;
m_PointCollection = null;
//Refresh the foreground thereby removing any text annotation
axMapControl1.Refresh(esriViewDrawPhase.esriViewForeground, Type.Missing, Type.Missing);
}
private IRgbColor GetRGBColor(int red,int green, int blue)
{
//Create rgb color and grab hold of the IRGBColor interface
IRgbColor rGB = new RgbColorClass();
//Set rgb color properties
rGB.Red = red;
rGB.Green = green;
rGB.Blue = blue;
rGB.UseWindowsDithering = true;
return rGB;
}
private void axMapControl1_OnMouseDown(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnMouseDownEvent e)
{
//If left hand mouse button
if (e.button == 1)
{
//Create a point and grab hold of the IPoint interface
IPoint point = new PointClass();
//Set point properties
point.X = e.mapX;
point.Y = e.mapY;
//If this is the first point of a new line
if (m_Polyline == null)
{
//Create the forms private polyline member and grab hold of the IPolyline interface
m_Polyline = new PolylineClass();
}
//QI for the IPointsCollection interface using the IPolyline interface
object o = Type.Missing;
//object o1 = m_PointCollection.PointCount-1;
m_PointCollection = (IPointCollection) m_Polyline;
m_PointCollection.AddPoint(point, ref o, ref o);
//Refresh the foreground thereby removing any text annotation
axMapControl1.Refresh(esriViewDrawPhase.esriViewForeground, Type.Missing,Type.Missing);
}
else
{
//If right or middle mouse button zoom to user defined rectangle
//Create an envelope and grab hold of the IEnvelope interface
IEnvelope envelope = axMapControl1.TrackRectangle();
//If user dragged a rectangle
if (envelope != null)
{
//Set map controls extent property
axMapControl1.Extent = envelope;
}
}
}
private void axMapControl1_OnAfterDraw(object sender, ESRI.ArcGIS.Controls.IMapControlEvents2_OnAfterDrawEvent e)
{
//If foreground refreshed
if (e.viewDrawPhase == (int) esriViewDrawPhase.esriViewForeground)
{
//If a line object for splining text exists
if (m_Polyline != null)
{
//Ensure there's at least two points in the line
if (m_PointCollection.PointCount > 1)
{
//Create a line symbol and grab hold of the ILineSymbol interface
ILineSymbol lineSymbol = new SimpleLineSymbolClass();
//Set line symbol properties
lineSymbol.Color = GetRGBColor(0, 0, 0);
lineSymbol.Width = 2;
//Create a text symbol and grab hold of the ITextSymbol interface
ITextSymbol textSymbol = new TextSymbolClass();
//Create a system drawing font symbol with the specified properties
System.Drawing.Font drawFont = new System.Drawing.Font("Arial", 16, FontStyle.Bold);
//Set the text symbol font by getting the IFontDisp interface
textSymbol.Font = (stdole.IFontDisp) OLE.GetIFontDispFromFont(drawFont);
textSymbol.Color = GetRGBColor(0, 0, 0);
//Create a text path and grab hold of the ITextPath interface
ITextPath textPath = new BezierTextPathClass(); //to spline the text
//Grab hold of the ISimpleTextSymbol interface through the ITextSymbol interface
ISimpleTextSymbol simpleTextSymbol = (ISimpleTextSymbol) textSymbol;
//Set the text path of the simple text symbol
simpleTextSymbol.TextPath = textPath;
//Draw the line object and spline the user text around the line
object oLineSymbol = lineSymbol;
object oTextSymbol = textSymbol;
axMapControl1.DrawShape(m_Polyline, ref oLineSymbol);
axMapControl1.DrawText(m_Polyline, Text1.Text, ref oTextSymbol);
}
}
}
}
}
}
[Visual Basic .NET]
DrawText.vb
Imports ESRI.ArcGIS.Controls
Imports ESRI.ArcGIS.esriSystem
Imports ESRI.ArcGIS.SystemUI
Imports ESRI.ArcGIS.Geometry
Imports ESRI.ArcGIS.Display
Imports ESRI.ArcGIS.Carto
Imports ESRI.ArcGIS.ADf.COMSupport.OLE
Imports ESRI.ArcGIS
Public Class Form1
Inherits System.Windows.Forms.Form
<STAThread()> _
Shared Sub Main()
'Load runtime
If Not RuntimeManager.Bind(ProductCode.Engine) Then
If Not RuntimeManager.Bind(ProductCode.Desktop) Then
MessageBox.Show("Unable to bind to ArcGIS Engine runtime. Application shutting down.")
System.Environment.Exit(1) ' Force exit or other indication in the application
End If
End If
Application.Run(New Form1())
End Sub
#Region "Windows Form Designer generated code "
Public Sub New()
MyBase.New()
'This call is required by the Windows Form Designer.
InitializeComponent()
End Sub
'Form overrides dispose to clean up the component list.
Protected Overloads Overrides Sub Dispose(ByVal Disposing As Boolean)
'Release COM objects
ESRI.ArcGIS.ADF.COMSupport.AOUninitialize.Shutdown()
If Disposing Then
If Not components Is Nothing Then
components.Dispose()
End If
End If
MyBase.Dispose(Disposing)
End Sub
'Required by the Windows Form Designer
Private components As System.ComponentModel.IContainer
Public ToolTip1 As System.Windows.Forms.ToolTip
Public WithEvents Text1 As System.Windows.Forms.TextBox
Public WithEvents cmdReset As System.Windows.Forms.Button
Public WithEvents cmdFullExtent As System.Windows.Forms.Button
Public WithEvents Label3 As System.Windows.Forms.Label
Public WithEvents Label2 As System.Windows.Forms.Label
Public WithEvents Label1 As System.Windows.Forms.Label
'NOTE: The following procedure is required by the Windows Form Designer
'It can be modified using the Windows Form Designer.
'Do not modify it using the code editor.
Friend WithEvents AxMapControl1 As ESRI.ArcGIS.Controls.AxMapControl
Friend WithEvents AxLicenseControl1 As ESRI.ArcGIS.Controls.AxLicenseControl
<System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
Me.components = New System.ComponentModel.Container
Dim resources As System.Resources.ResourceManager = New System.Resources.ResourceManager(GetType(Form1))
Me.ToolTip1 = New System.Windows.Forms.ToolTip(Me.components)
Me.Text1 = New System.Windows.Forms.TextBox
Me.cmdReset = New System.Windows.Forms.Button
Me.cmdFullExtent = New System.Windows.Forms.Button
Me.Label3 = New System.Windows.Forms.Label
Me.Label2 = New System.Windows.Forms.Label
Me.Label1 = New System.Windows.Forms.Label
Me.AxMapControl1 = New ESRI.ArcGIS.Controls.AxMapControl
Me.AxLicenseControl1 = New ESRI.ArcGIS.Controls.AxLicenseControl
CType(Me.AxMapControl1, System.ComponentModel.ISupportInitialize).BeginInit()
CType(Me.AxLicenseControl1, System.ComponentModel.ISupportInitialize).BeginInit()
Me.SuspendLayout()
'
'Text1
'
Me.Text1.AcceptsReturn = True
Me.Text1.AutoSize = False
Me.Text1.BackColor = System.Drawing.SystemColors.Window
Me.Text1.Cursor = System.Windows.Forms.Cursors.IBeam
Me.Text1.Font = New System.Drawing.Font("Arial", 8.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Text1.ForeColor = System.Drawing.SystemColors.WindowText
Me.Text1.Location = New System.Drawing.Point(8, 304)
Me.Text1.MaxLength = 0
Me.Text1.Name = "Text1"
Me.Text1.RightToLeft = System.Windows.Forms.RightToLeft.No
Me.Text1.Size = New System.Drawing.Size(321, 25)
Me.Text1.TabIndex = 2
Me.Text1.Text = "Put a map in your app..."
'
'cmdReset
'
Me.cmdReset.BackColor = System.Drawing.SystemColors.Control
Me.cmdReset.Cursor = System.Windows.Forms.Cursors.Default
Me.cmdReset.Font = New System.Drawing.Font("Arial", 8.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.cmdReset.ForeColor = System.Drawing.SystemColors.ControlText
Me.cmdReset.Location = New System.Drawing.Point(336, 216)
Me.cmdReset.Name = "cmdReset"
Me.cmdReset.RightToLeft = System.Windows.Forms.RightToLeft.No
Me.cmdReset.Size = New System.Drawing.Size(73, 25)
Me.cmdReset.TabIndex = 1
Me.cmdReset.Text = "Clear Text"
'
'cmdFullExtent
'
Me.cmdFullExtent.BackColor = System.Drawing.SystemColors.Control
Me.cmdFullExtent.Cursor = System.Windows.Forms.Cursors.Default
Me.cmdFullExtent.Font = New System.Drawing.Font("Arial", 8.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.cmdFullExtent.ForeColor = System.Drawing.SystemColors.ControlText
Me.cmdFullExtent.Location = New System.Drawing.Point(336, 248)
Me.cmdFullExtent.Name = "cmdFullExtent"
Me.cmdFullExtent.RightToLeft = System.Windows.Forms.RightToLeft.No
Me.cmdFullExtent.Size = New System.Drawing.Size(73, 25)
Me.cmdFullExtent.TabIndex = 0
Me.cmdFullExtent.Text = "Full Extent"
'
'Label3
'
Me.Label3.BackColor = System.Drawing.SystemColors.Control
Me.Label3.Cursor = System.Windows.Forms.Cursors.Default
Me.Label3.Font = New System.Drawing.Font("Arial", 8.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Label3.ForeColor = System.Drawing.SystemColors.ControlText
Me.Label3.Location = New System.Drawing.Point(336, 80)
Me.Label3.Name = "Label3"
Me.Label3.RightToLeft = System.Windows.Forms.RightToLeft.No
Me.Label3.Size = New System.Drawing.Size(81, 65)
Me.Label3.TabIndex = 4
Me.Label3.Text = "Right mouse button to drag a rectangle to zoom in."
'
'Label2
'
Me.Label2.BackColor = System.Drawing.SystemColors.Control
Me.Label2.Cursor = System.Windows.Forms.Cursors.Default
Me.Label2.Font = New System.Drawing.Font("Arial", 8.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Label2.ForeColor = System.Drawing.SystemColors.ControlText
Me.Label2.Location = New System.Drawing.Point(336, 16)
Me.Label2.Name = "Label2"
Me.Label2.RightToLeft = System.Windows.Forms.RightToLeft.No
Me.Label2.Size = New System.Drawing.Size(81, 65)
Me.Label2.TabIndex = 5
Me.Label2.Text = "Left mouse button to trace a line to draw text along. "
'
'Label1
'
Me.Label1.BackColor = System.Drawing.SystemColors.Control
Me.Label1.Cursor = System.Windows.Forms.Cursors.Default
Me.Label1.Font = New System.Drawing.Font("Arial", 8.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Label1.ForeColor = System.Drawing.SystemColors.ControlText
Me.Label1.Location = New System.Drawing.Point(8, 288)
Me.Label1.Name = "Label1"
Me.Label1.RightToLeft = System.Windows.Forms.RightToLeft.No
Me.Label1.Size = New System.Drawing.Size(129, 17)
Me.Label1.TabIndex = 3
Me.Label1.Text = "Enter text:"
'
'AxMapControl1
'
Me.AxMapControl1.Location = New System.Drawing.Point(8, 8)
Me.AxMapControl1.Name = "AxMapControl1"
Me.AxMapControl1.OcxState = CType(resources.GetObject("AxMapControl1.OcxState"), System.Windows.Forms.AxHost.State)
Me.AxMapControl1.Size = New System.Drawing.Size(320, 272)
Me.AxMapControl1.TabIndex = 6
'
'AxLicenseControl1
'
Me.AxLicenseControl1.Enabled = True
Me.AxLicenseControl1.Location = New System.Drawing.Point(120, 24)
Me.AxLicenseControl1.Name = "AxLicenseControl1"
Me.AxLicenseControl1.OcxState = CType(resources.GetObject("AxLicenseControl1.OcxState"), System.Windows.Forms.AxHost.State)
Me.AxLicenseControl1.Size = New System.Drawing.Size(200, 50)
Me.AxLicenseControl1.TabIndex = 7
'
'Form1
'
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.BackColor = System.Drawing.SystemColors.Control
Me.ClientSize = New System.Drawing.Size(420, 350)
Me.Controls.Add(Me.AxLicenseControl1)
Me.Controls.Add(Me.AxMapControl1)
Me.Controls.Add(Me.Text1)
Me.Controls.Add(Me.cmdReset)
Me.Controls.Add(Me.cmdFullExtent)
Me.Controls.Add(Me.Label3)
Me.Controls.Add(Me.Label2)
Me.Controls.Add(Me.Label1)
Me.Cursor = System.Windows.Forms.Cursors.Default
Me.Font = New System.Drawing.Font("Arial", 8.0!, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, CType(0, Byte))
Me.Location = New System.Drawing.Point(4, 23)
Me.Name = "Form1"
Me.RightToLeft = System.Windows.Forms.RightToLeft.No
Me.Text = "Draw Text Example"
CType(Me.AxMapControl1, System.ComponentModel.ISupportInitialize).EndInit()
CType(Me.AxLicenseControl1, System.ComponentModel.ISupportInitialize).EndInit()
Me.ResumeLayout(False)
End Sub
#End Region
Private m_pPointCollection As IPointCollection
Private m_pPolyline As IPolyline
Private Sub Form1_Load(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles MyBase.Load
Dim sFilePath As String
'Find sample data by navigating two folders up
sFilePath = "..\..\..\Data\World\Continents.lyr"
'Add sample 'country' shapefile data
AxMapControl1.AddLayerFromFile(sFilePath)
'Set the extent
AxMapControl1.Extent = AxMapControl1.get_Layer(0).AreaOfInterest
Dim pGeoFeatureLayer As IGeoFeatureLayer
'Grab hold of the IgeoFeaturelayer interface on the layer
'in the map control in order to symbolize the data
pGeoFeatureLayer = AxMapControl1.get_Layer(0)
Dim pSimpleRenderer As ISimpleRenderer
Dim pFillSymbol As ISimpleFillSymbol
Dim pLineSymbol As ISimpleLineSymbol
'Create a simple renderer and grab hold of ISimpleRenderer interface
pSimpleRenderer = New SimpleRendererClass
'Create a fill symbol and grab hold of the ISimpleFillSymbol interface
pFillSymbol = New SimpleFillSymbolClass
'Create a line symbol and grab hold of the ISimpleLineSymbol interface
pLineSymbol = New SimpleLineSymbolClass
'Assign line symbol and fill symbol properties
pLineSymbol.Width = 0.1
pLineSymbol.Color = GetRGBColor(255, 0, 0) 'Red
pFillSymbol.Outline = pLineSymbol
pFillSymbol.Color = GetRGBColor(0, 0, 255) 'Blue
'Set the symbol property of the renderer
pSimpleRenderer.Symbol = pFillSymbol
'Set the renderer property of the geo feature layer
pGeoFeatureLayer.Renderer = pSimpleRenderer
End Sub
Private Sub cmdFullExtent_Click(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles cmdFullExtent.Click
'Assign map controls extent property to the full extent of all the layers
AxMapControl1.Extent = AxMapControl1.FullExtent
End Sub
Private Sub cmdReset_Click(ByVal eventSender As System.Object, ByVal eventArgs As System.EventArgs) Handles cmdReset.Click
'Get rid of the line and points collection
m_pPolyline = Nothing
m_pPointCollection = Nothing
'Refresh the foreground thereby removing any text annotation
AxMapControl1.Refresh(esriViewDrawPhase.esriViewForeground, Nothing, Nothing)
End Sub
Private Function GetRGBColor(ByRef pRed As Integer, ByRef pGreen As Integer, ByRef pBlue As Integer) As ESRI.ArcGIS.Display.IRgbColor
Dim pRGB As IRgbColor
'Create rgb color and grab hold of the IRGBColor interface
pRGB = New RgbColor
'Set rgb color properties
With pRGB
.Red = pRed
.Green = pGreen
.Blue = pBlue
.UseWindowsDithering = True
End With
GetRGBColor = pRGB
End Function
Private Sub AxMapControl1_OnAfterDraw(ByVal sender As Object, ByVal e As ESRI.ArcGIS.Controls.IMapControlEvents2_OnAfterDrawEvent) Handles AxMapControl1.OnAfterDraw
'If foreground refreshed
Dim pLineSymbol As ILineSymbol
Dim pTextSymbol As ITextSymbol
Dim pTextPath As ITextPath
Dim pSimpleTextSymbol As ISimpleTextSymbol
If e.viewDrawPhase = esriViewDrawPhase.esriViewForeground Then
'If a line object for splining text exists
If Not m_pPolyline Is Nothing Then
'Ensure there's at least two points in the line
If m_pPointCollection.PointCount > 1 Then
'Create a line symbol and grab hold of the ILineSymbol interface
pLineSymbol = New SimpleLineSymbolClass
'Set line symbol properties
pLineSymbol.Color = GetRGBColor(0, 0, 0)
pLineSymbol.Width = 2
'Create text symbol
'Create a text symbol and grab hold of the ITextSymbol interface
pTextSymbol = New TextSymbolClass
''Create a system drawing font symbol with the specified properties
Dim drawFont As New System.Drawing.Font("Arial", 16, FontStyle.Bold)
'Set the text symbol font by getting the IFontDisp interface
pTextSymbol.Font = GetIFontDispFromFont(drawFont)
pTextSymbol.Color = GetRGBColor(0, 0, 0)
'Create a text path and grab hold of the ITextPath interface
pTextPath = New BezierTextPathClass 'to spline the text
'Grab hold of the ISimpleTextSymbol interface through the ITextSymbol interface
pSimpleTextSymbol = pTextSymbol
'Set the text path of the simple text symbol
pSimpleTextSymbol.TextPath = pTextPath
'Draw the line object and spline the user text around the line
AxMapControl1.DrawShape(m_pPolyline, CType(pLineSymbol, Object))
AxMapControl1.DrawText(m_pPolyline, Text1.Text, CType(pTextSymbol, Object))
End If
End If
End If
End Sub
Private Sub AxMapControl1_OnMouseDown(ByVal sender As Object, ByVal e As ESRI.ArcGIS.Controls.IMapControlEvents2_OnMouseDownEvent) Handles AxMapControl1.OnMouseDown
'If left hand mouse button
Dim pPoint As IPoint
Dim pEnvelope As IEnvelope
If e.button = 1 Then
'Create a point and grab hold of the IPoint interface
pPoint = New PointClass
'Set point properties
pPoint.X = e.mapX
pPoint.Y = e.mapY
'If this is the first point of a new line
If m_pPolyline Is Nothing Then
'Create the forms private polyline member and grab hold of the IPolyline interface
m_pPolyline = New PolylineClass
End If
'QI for the IPointsCollection interface using the IPolyline interface
m_pPointCollection = m_pPolyline
m_pPointCollection.AddPoint(pPoint)
'Refresh the foreground thereby removing any text annotation
AxMapControl1.Refresh(esriViewDrawPhase.esriViewForeground, Nothing, Nothing)
Else
'If right or middle mouse button zoom to user defined rectangle
'Create an envelope and grab hold of the IEnvelope interface
pEnvelope = AxMapControl1.TrackRectangle
'If user dragged a rectangle
If Not pEnvelope Is Nothing Then
'Set map controls extent property
AxMapControl1.Extent = pEnvelope
End If
End If
End Sub
End Class