tooltip.cs
I am learning tooltip script above link.
I tested the code above but it does not show any tooltip label in form when I run prgoram.
Here is my code:
public void ToolTip(AxMap axMap1, string dataPath)
{
//axMap1.Projection = tkMapProjection.PROJECTION_GOOGLE_MERCATOR;
string filename = dataPath; // + "landuse.shp";
if (!File.Exists(filename))
{
MessageBox.Show("Couldn't file the file: " + filename);
return;
}
Shapefile sf = new Shapefile();
sf.Open(filename, null);
if (!sf.StartEditingShapes(true, null))
{
MessageBox.Show("Failed to start edit mode: " + sf.Table.ErrorMsg[sf.LastErrorCode]);
}
else
{
sf.UseQTree = true;
sf.Labels.Generate("[Name]", tkLabelPositioning.lpCentroid, false);
axMap1.AddLayer(sf, true);
axMap1.SendMouseMove = true;
axMap1.ShowRedrawTime = true;
axMap1.MapUnits = tkUnitsOfMeasure.umMeters;
axMap1.CurrentScale = 50000;
axMap1.CursorMode = tkCursorMode.cmNone;
axMap1.MouseMoveEvent += AxMap1MouseMoveEvent; // change MapEvents to axMap1
_mDrawingHandle = axMap1.NewDrawing(tkDrawReferenceList.dlScreenReferencedList);
Labels labels = axMap1.get_DrawingLabels(_mDrawingHandle);
labels.FrameVisible = true;
labels.FrameType = tkLabelFrameType.lfRectangle;
}
}
// <summary>
// Handles mouse move event. Determines which shape is under cursor. Calls drawing routine.
// </summary>
void AxMap1MouseMoveEvent(object sender, _DMapEvents_MouseMoveEvent e)
{
Labels labels = axMap1.get_DrawingLabels(0);
labels.Clear();
// it's assumed here that the layer we want to edit is the first 1 (with 0 index)
int layerHandle = axMap1.get_LayerHandle(0);
var sf = axMap1.get_Shapefile(layerHandle);
if (sf != null)
{
// 37.4799670597, 126.882635295
double projX = 0;
double projY = 0;
axMap1.PixelToProj(e.x, e.y, ref projX, ref projY);
object result = null;
var ext = new Extents();
ext.SetBounds(projX, projY, 0.0, projX, projY, 0.0);
if (sf.SelectShapes(ext, 0.0, SelectMode.INTERSECTION, ref result))
{
Console.WriteLine("Salom");
int[] shapes = result as int[];
if (shapes != null && shapes.Length == 1)
{
string s = "";
for (int i = 0; i < sf.NumFields; i++)
{
s += sf.Field[i].Name + ": " + sf.CellValue[i, shapes[0]] + "\n";
}
labels.AddLabel(s, e.x + 80, e.y);
}
}
}
axMap1.Redraw2(tkRedrawType.RedrawSkipDataLayers);
}
This is the result of execution code:
