/// <summary>
/// Draws a scalebar on the screen.
/// </summary>
public override void Render(Graphics graphics, Map mapBox)
{
if (Visible)
{
if (!initScreenPosition)
{
initScreenPosition = SetInitialScreenLocation();
}
// Get the current map scale
double meters = GetSegmentInMeters();
//display km scale on bar if map has small scale
bar.BarUnit = meters < 5000 ? MapUnits.ws_muMeter : MapUnits.ws_muKilometer;
if (meters > 0) // A valid scale was found
{
bar.SetScale(meters, size.Width);
bar.DrawTheControl(graphics, ScreenRectangle);
}
}
base.Render(graphics, mapBox);
}
public void ShowScaleBar()
{
var rectangle = new Rectangle(5,5,300,50);
var bar = new ScaleBar();
bar.BorderVisible = false;
bar.TransparentBackground = true;
bar.BorderVisible = true;
//bar.BarColor2 = Color.Yellow;
bar.SetScale(20, 40);
// bar.MapUnit = MapUnits.ws_muMeter;
// bar.BarUnit = MapUnits.ws_muMeter;
//bar.SetCustomUnit(4,"test","test");
// bar.MapUnit = MapUnits.ws_muCustom;
using (var control = new UserControl())
{
control.Paint +=
delegate(object sender, PaintEventArgs e)
{
// rectangle = new Rectangle(new Point(0, 0), ((Control) sender).Size);
bar.DrawTheControl(e.Graphics, rectangle);
};
WindowsFormsTestHelper.ShowModal(control);
}
}
