//创建点状线
private IMarkerLineSymbol CreateMarkerLineSymbol()
{
IMarkerLineSymbol pMarkerLS = new MarkerLineSymbol();
//样式
if (pMarkerSymbol != null)
{
pMarkerLS.MarkerSymbol = pMarkerSymbol;
}
ICartographicLineSymbol pCartographicLS = pMarkerLS as ICartographicLineSymbol;
//颜色
if (colorCartographicLine.SelectedColor != Color.Empty)
{
pCartographicLS.Color = ClsGDBDataCommon.ColorToIColor(colorCartographicLine.SelectedColor);
}
else
{
pCartographicLS.Color = ClsGDBDataCommon.ColorToIColor(Color.Black);
colorCartographicLine.SelectedColor = Color.Black;
}
//宽度
pCartographicLS.Width = double.Parse(widthCartographicLine.Text);
//端点样式
if (rbCatButt.Checked == true)
{
pCartographicLS.Cap = esriLineCapStyle.esriLCSButt;
}
else if (rbCatRoundC.Checked == true)
{
pCartographicLS.Cap = esriLineCapStyle.esriLCSRound;
}
else if (rbCatSquare.Checked == true)
{
pCartographicLS.Cap = esriLineCapStyle.esriLCSSquare;
}
//节点样式
if (rbCatMitre.Checked == true)
{
pCartographicLS.Join = esriLineJoinStyle.esriLJSMitre;
}
else if (rbCatRoundJ.Checked == true)
{
pCartographicLS.Join = esriLineJoinStyle.esriLJSRound;
}
else if (rbCatBevel.Checked == true)
{
pCartographicLS.Join = esriLineJoinStyle.esriLJSBevel;
}
//端点箭头样式
ILineDecorationElement pLineDecorationElement = new SimpleLineDecorationElement();
return(pMarkerLS);
}
/// <summary>
/// 获得自定义多边形
/// </summary>
/// <param name="Button"></param>
/// <param name="Shift"></param>
/// <param name="X"></param>
/// <param name="Y"></param>
public override void OnMouseDown(int Button, int Shift, int X, int Y)
{
IMapControl4 mapControl = null;
if (_hookHelper != null)
{
mapControl = (IMapControl4)_hookHelper.Hook;
_polygon = (IPolygon)mapControl.TrackPolygon();
}
if (_polygon != null)
{
if (_polygon.IsEmpty == false)
{
IMap map = _hookHelper.FocusMap;
IGraphicsContainer graphicsContainer = (IGraphicsContainer)map;
IActiveView activeView = (IActiveView)map;
if (_element != null)
{
graphicsContainer.DeleteElement(_element);
activeView.Refresh();
}
IRgbColor color = new RgbColor();
color.Red = 255;
color.Green = 255;
color.Blue = 0;
IMarkerLineSymbol markerLineSymbol = new MarkerLineSymbol();
markerLineSymbol.Color = color;
markerLineSymbol.Width = 2;
ISimpleFillSymbol simpleFillSym = new SimpleFillSymbol();
simpleFillSym.Style = esriSimpleFillStyle.esriSFSHollow;
simpleFillSym.Outline = markerLineSymbol;
IFillShapeElement polygonElement = new PolygonElementClass();
polygonElement.Symbol = simpleFillSym;
_element = (IElement)polygonElement;
_element.Geometry = _polygon;
graphicsContainer.AddElement(_element, 0);
activeView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);
//传值
if (_frmPolygonExtract.IsDisposed)
{
_frmPolygonExtract = new FrmPolygonExtract();
}
_frmPolygonExtract.Map = _hookHelper.FocusMap;
_frmPolygonExtract.MapControl = (IMapControl4)_hookHelper.Hook;
_frmPolygonExtract.Geometry = _polygon;
_frmPolygonExtract.Element = _element;
_frmPolygonExtract.ShowDialog();
}
else
{
MessageBoxEx.Show("画出的几何图象是空的！", "提示");
}
}
else
{
return;
}
mapControl.CurrentTool = null;
_element = null;
}
