//public void UpdateLabels(VectorLayer aLayer)
//{
// aLayer.ClearLabels();
// ArrayList shapeList = new ArrayList();
// shapeList = (ArrayList)aLayer.ShapeList.Clone();
// int shapeIdx = 0;
// PointF aPoint = new PointF();
// switch (aLayer.ShapeType)
// {
// case ShapeTypes.Point:
// foreach (PointShape aPS in shapeList)
// {
// LabelPoint aLP = new LabelPoint();
// aPoint.X = (Single)aPS.Point.X;
// aPoint.Y = (Single)aPS.Point.Y;
// aLP.PointPos = aPoint;
// aLP.Text = aLayer.GetCellValue(aLayer.LabelSetV.FieldName, shapeIdx).ToString();
// aLayer.AddLabel(aLP);
// shapeIdx += 1;
// }
// break;
// case ShapeTypes.Polygon:
// foreach (PolygonShape aPGS in shapeList)
// {
// LabelPoint aLP = new LabelPoint();
// Extent aExtent = aPGS.extent;
// aPoint.X = (Single)((aExtent.minX + aExtent.maxX) / 2);
// aPoint.Y = (Single)((aExtent.minY + aExtent.maxY) / 2);
// aLP.PointPos = aPoint;
// aLP.Text = aLayer.GetCellValue(aLayer.LabelSetV.FieldName, (int)aPGS.lowValue).ToString();
// aLayer.AddLabel(aLP);
// shapeIdx += 1;
// }
// break;
// case ShapeTypes.Polyline:
// foreach (PolylineShape aPLS in shapeList)
// {
// LabelPoint aLP = new LabelPoint();
// int pIdx = aPLS.points.Count / 2;
// //Single angle = (Single)(Math.Atan((((wContour.Contour.Point)aPLS.points[pIdx]).y - ((wContour.Contour.Point)aPLS.points[pIdx - 1]).y) /
// //(((wContour.Contour.Point)aPLS.points[pIdx]).x - ((wContour.Contour.Point)aPLS.points[pIdx - 1]).x)) * 180 / Math.PI);
// aPoint.X = (Single)((wContour.Point)aPLS.points[pIdx - 1]).X;
// aPoint.Y = (Single)((wContour.Point)aPLS.points[pIdx - 1]).Y;
// aLP.PointPos = aPoint;
// //aLP.Angle = angle;
// aLP.Text = aLayer.GetCellValue(aLayer.LabelSetV.FieldName, (int)aPLS.value).ToString();
// aLayer.AddLabel(aLP);
// shapeIdx += 1;
// }
// break;
// }
// frmMain.G_LayersLegend.ActiveMapFrame.MapView.PaintLayers();
//}
private void B_DrawLabels_Click(object sender, EventArgs e)
{
_layer.RemoveLabels();
UpdateLabelSet();
AddLabels();
_mapView.PaintLayers();
}