/// <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("###"));
}
/// <summary>
/// The dynamic layer draw method
/// </summary>
/// <param name="DynamicDrawPhase">the current drawphase of the dynamic drawing</param>
/// <param name="Display">the ActiveView's display</param>
/// <param name="DynamicDisplay">the ActiveView's dynamic display</param>
public override void DrawDynamicLayer(ESRI.ArcGIS.Display.esriDynamicDrawPhase DynamicDrawPhase, ESRI.ArcGIS.Display.IDisplay Display, ESRI.ArcGIS.Display.IDynamicDisplay DynamicDisplay)
{
try
{
//make sure that the display is valid as well as that the layer is visible
if (null == DynamicDisplay || null == Display || !this.m_visible)
{
return;
}
//make sure that the current drawphase is immediate. In this sample there is no use of the
//compiled drawPhase. Use the esriDDPCompiled drawPhase in order to draw semi-static items (items
//which have update rate lower than the display update rate).
if (DynamicDrawPhase != esriDynamicDrawPhase.esriDDPImmediate)
{
return;
}
if (m_bOnce)
{
//cast the DynamicDisplay into DynamicGlyphFactory
m_dynamicGlyphFactory = DynamicDisplay.DynamicGlyphFactory as IDynamicGlyphFactory2;
//cast the DynamicDisplay into DynamicSymbolProperties
m_dynamicSymbolProps = DynamicDisplay as IDynamicSymbolProperties;
//cast the compound marker symbol
m_dynamicCompoundMarker = DynamicDisplay as IDynamicCompoundMarker;
IntializeLayerData(Display.DisplayTransformation);
GetLayerExtent();
m_bOnce = false;
}
//get the display fitted bounds
m_extentMaxX = Display.DisplayTransformation.FittedBounds.XMax;
m_extentMaxY = Display.DisplayTransformation.FittedBounds.YMax;
m_extentMinX = Display.DisplayTransformation.FittedBounds.XMin;
m_extentMinY = Display.DisplayTransformation.FittedBounds.YMin;
//create the dynamic symbols for the layer
if (!m_bDynamicGlyphsCreated)
{
this.CreateDynamicSymbols(m_dynamicGlyphFactory);
m_bDynamicGlyphsCreated = true;
}
double X, Y, heading;
int type;
//iterate through the layers' items
foreach (DataRow r in m_table.Rows)
{
if (r[1] is DBNull || r[2] is DBNull)
{
continue;
}
//get the item's coordinate, heading and type
X = Convert.ToDouble(r[1]);
Y = Convert.ToDouble(r[2]);
heading = Convert.ToDouble(r[5]);
type = Convert.ToInt32(r[6]);
//assign the items' coordinate to the cached point
m_point.PutCoords(X, Y);
//set the symbol's properties
switch (type)
{
case 0:
//set the heading of the current symbols' text
m_dynamicSymbolProps.set_Heading(esriDynamicSymbolType.esriDSymbolText, 0.0f);
m_dynamicSymbolProps.set_Heading(esriDynamicSymbolType.esriDSymbolMarker, 0.0f);
//set the symbol alignment so that it will align with the screen
m_dynamicSymbolProps.set_RotationAlignment(esriDynamicSymbolType.esriDSymbolMarker, esriDynamicSymbolRotationAlignment.esriDSRAScreen);
//set the text alignment so that it will also align with the screen
m_dynamicSymbolProps.set_RotationAlignment(esriDynamicSymbolType.esriDSymbolText, esriDynamicSymbolRotationAlignment.esriDSRAScreen);
//scale the item
m_dynamicSymbolProps.SetScale(esriDynamicSymbolType.esriDSymbolMarker, 0.8f, 0.8f);
//set the items' color (blue)
m_dynamicSymbolProps.SetColor(esriDynamicSymbolType.esriDSymbolMarker, 0.0f, 0.0f, 1.0f, 1.0f); // Blue
//assign the item's glyph to the dynamic-symbol
m_dynamicSymbolProps.set_DynamicGlyph(esriDynamicSymbolType.esriDSymbolMarker, m_markerGlyphs[0]);
//set the labels text glyph
m_dynamicSymbolProps.set_DynamicGlyph(esriDynamicSymbolType.esriDSymbolText, m_textGlyph);
//set the color of the text
m_dynamicSymbolProps.SetColor(esriDynamicSymbolType.esriDSymbolText, 1.0f, 1.0f, 0.0f, 1.0f); // Yellow
//draw the item as a compound marker. This means that you do not have to draw the items and their
//accompanying labels separately, and thus allow you to write less code as well as get better
//performance.
m_dynamicCompoundMarker.DrawCompoundMarker4
(m_point,
//"TOP",
//"BOTTOM",
"Item " + Convert.ToString(r[0]),
heading.ToString("###.##"),
m_point.X.ToString("###.#####"),
m_point.Y.ToString("###.#####"));
break;
case 1:
//set the heading of the current symbol
m_dynamicSymbolProps.set_Heading(esriDynamicSymbolType.esriDSymbolMarker, (float)heading);
//set the symbol alignment so that it will align with towards the symbol heading
m_dynamicSymbolProps.set_RotationAlignment(esriDynamicSymbolType.esriDSymbolMarker, esriDynamicSymbolRotationAlignment.esriDSRANorth);
m_dynamicSymbolProps.SetScale(esriDynamicSymbolType.esriDSymbolMarker, 1.0f, 1.0f);
m_dynamicSymbolProps.SetColor(esriDynamicSymbolType.esriDSymbolMarker, 0.0f, 1.0f, 0.6f, 1.0f); // GREEN
m_dynamicSymbolProps.set_DynamicGlyph(esriDynamicSymbolType.esriDSymbolMarker, m_markerGlyphs[1]);
//draw the current location
DynamicDisplay.DrawMarker(m_point);
break;
case 2:
//set the heading of the current symbol
m_dynamicSymbolProps.set_Heading(esriDynamicSymbolType.esriDSymbolMarker, (float)heading);
//set the symbol alignment so that it will align with towards the symbol heading
m_dynamicSymbolProps.set_RotationAlignment(esriDynamicSymbolType.esriDSymbolMarker, esriDynamicSymbolRotationAlignment.esriDSRANorth);
m_dynamicSymbolProps.SetScale(esriDynamicSymbolType.esriDSymbolMarker, 1.1f, 1.1f);
m_dynamicSymbolProps.SetColor(esriDynamicSymbolType.esriDSymbolMarker, 1.0f, 1.0f, 1.0f, 1.0f); // WHITE
m_dynamicSymbolProps.set_DynamicGlyph(esriDynamicSymbolType.esriDSymbolMarker, m_markerGlyphs[2]);
//draw the current location
DynamicDisplay.DrawMarker(m_point);
break;
}
}
// by setting immediate flag to false, we signal the dynamic display that the layer is current.
base.m_bIsImmediateDirty = false;
}
catch (Exception ex)
{
System.Diagnostics.Trace.WriteLine(ex.Message);
}
}