/// <summary>
/// draw the numbers (azimuth) in the HUD
/// </summary>
/// <param name="deviceFrame"></param>
/// <param name="angle"></param>
private void DrawAzimuths(tagRECT deviceFrame, float angle)
{
//need to draw the current azimuth
m_dynamicSymbolProps.SetColor(esriDynamicSymbolType.esriDSymbolText, 0.0f, 0.8f, 0.0f, 1.0f); // Green
//assign the item's glyph to the dynamic-symbol
m_dynamicSymbolProps.set_DynamicGlyph(esriDynamicSymbolType.esriDSymbolText, m_textGlyph);
//get the floor of the azimuth
float azimuth = 180.0f - angle;
if (azimuth > 360)
{
azimuth -= 360;
}
else if (azimuth < 0)
{
azimuth += 360;
}
float floorAzi = (int)(azimuth / 10.0f) * 10.0f;
double deltaAzi = (angle - (float)((int)(angle / 10.0f) * 10.0f)) * 6.0; //(the shift to the X axis)
double xmin = (double)deviceFrame.left;
double xmax = (double)deviceFrame.right;
double ymin = (double)deviceFrame.top;
double xmiddle = (xmax + xmin) / 2.0;
double x = xmiddle - 150.0 + deltaAzi;
double dAzStartMiddle = (150.0 - 2.0 * deltaAzi) / 6.0;
dAzStartMiddle = (int)(dAzStartMiddle / 60.0) * 60.0 + 10.0;
int azi = (int)(floorAzi - dAzStartMiddle) - 5;
double delta = 60.0;
m_dynamicSymbolProps.set_Heading(esriDynamicSymbolType.esriDSymbolText, 0.0f);
m_dynamicSymbolProps.set_RotationAlignment(esriDynamicSymbolType.esriDSymbolText, esriDynamicSymbolRotationAlignment.esriDSRAScreen);
for (int i = 0; i < 5; i++)
{
m_point.PutCoords(x, ymin + 28.0);
if (azi > 360)
{
azi -= 360;
}
else if (azi < 0)
{
azi += 360;
}
m_dynamicDrawScreen.DrawScreenText(m_point, azi.ToString());
azi += 10;
x += delta;
}
//need to draw the current azimuth
m_dynamicSymbolProps.SetColor(esriDynamicSymbolType.esriDSymbolText, 0.0f, 0.0f, 0.0f, 1.0f); // Black
m_point.PutCoords(xmiddle, ymin + 95.0);
m_dynamicDrawScreen.DrawScreenText(m_point, azimuth.ToString("###"));
}
