/// <summary>
/// Draw the polygon contained within the properties.
/// </summary>
/// <param name="polyToBeDrawn">
/// The polygon to be drawn.
/// </param>
/// <param name="graphicContainer">
/// The graphic container.
/// </param>
private void DrawPoly(Properties polyToBeDrawn, IGraphicsContainer graphicContainer)
{
var poly = new PolygonClass();
poly.Project(ArcMap.Document.ActiveView.Extent.SpatialReference);
foreach (var pnt in polyToBeDrawn.Points)
{
var tempPoint = new PointClass();
tempPoint.PutCoords(pnt.X, pnt.Y);
tempPoint.SpatialReference = Jarvis.ProjectedCoordinateSystem;
tempPoint.Project(ArcMap.Document.ActiveView.Extent.SpatialReference);
poly.AddPoint(tempPoint);
}
IElement elm = new PolygonElementClass();
elm.Geometry = poly;
graphicContainer.AddElement(elm, 0);
}
private void buttonOK_Click(object sender, EventArgs e)
{
this.Visible = false;
if (_axmapcontrol != null)
{
try
{
IEnvelope penvelope = new EnvelopeClass();
penvelope.XMin = Convert.ToDouble(textBoxWest.Text);
penvelope.XMax = Convert.ToDouble(textBoxEast.Text);
penvelope.YMax = Convert.ToDouble(textBoxNorth.Text);
penvelope.YMin = Convert.ToDouble(textBoxSouth.Text);
IPoint pmiddle = new PointClass();
pmiddle.PutCoords((penvelope.XMax + penvelope.XMin) / 2, (penvelope.YMax + penvelope.YMin) / 2);//中心点
/*********************************将Envelope转成Polygon*/
IPolygon pon = new PolygonClass();
IPointCollection ptcoll = new PolygonClass();
IPoint a = new PointClass(); IPoint b = new PointClass(); IPoint c = new PointClass(); IPoint d = new PointClass();
a.PutCoords(penvelope.XMin, penvelope.YMax);
b.PutCoords(penvelope.XMax, penvelope.YMax);
c.PutCoords(penvelope.XMax, penvelope.YMin);
d.PutCoords(penvelope.XMin, penvelope.YMin);
object missing = Type.Missing;
ptcoll.AddPoint(a, ref missing, ref missing);
ptcoll.AddPoint(b, ref missing, ref missing);
ptcoll.AddPoint(c, ref missing, ref missing);
ptcoll.AddPoint(d, ref missing, ref missing);
pon = ptcoll as IPolygon;
/*********************************/
IGeometry geo = new PolygonClass();
geo = pon as IGeometry;
/*-----xisheng 20110802------*/
ISpatialReference earthref = null;
ISpatialReference flatref = null;
ISpatialReferenceFactory2 pSpatRefFac = new SpatialReferenceEnvironmentClass();
earthref = pSpatRefFac.CreateGeographicCoordinateSystem((int)esriSRGeoCSType.esriSRGeoCS_WGS1984);
if (this.WriteLog)
{
Plugin.LogTable.Writelog(this.Text);//xisheng 日志记录 0928;
}
if (_axmapcontrol.MapUnits == esriUnits.esriMeters)
{
flatref = _axmapcontrol.Map.SpatialReference;
geo.SpatialReference = flatref;//yjl20110812
//geo.Project(flatref);
}
/*-----xisheng 20110802------*/
//创建Topo对象，简化后统一空间参考
ITopologicalOperator pTopo = (ITopologicalOperator)geo;
pTopo.Simplify();
geo.Project(_axmapcontrol.Map.SpatialReference);
if (m_frmQuery == null)
{
m_frmQuery = new frmQuery(_axmapcontrol, m_enumQueryMode);
m_frmQuery.Owner = m_mainFrm;
m_frmQuery.FormClosed += new FormClosedEventHandler(frmQuery_FormClosed);
}
//清除上次的所有元素
(_axmapcontrol.Map as IGraphicsContainer).DeleteAllElements();
m_frmBufferSet = new frmBufferSet(geo, _axmapcontrol.Map, m_frmQuery);
m_frmBufferSet.FormClosed += new FormClosedEventHandler(frmBufferSet_FormClosed);
_axmapcontrol.CenterAt(pmiddle);
IGeometry pGeometry = m_frmBufferSet.GetBufferGeometry();
if (pGeometry == null || m_frmBufferSet.Res == false)
{
return;
}
m_frmQuery.Show();
///ZQ 20111119 modify
m_frmQuery.FillData(_axmapcontrol.ActiveView.FocusMap, pGeometry, m_frmBufferSet.pesriSpatialRelEnum);
this.Close();
}
catch (Exception ex)
{
SysCommon.Error.ErrorHandle.ShowFrmErrorHandle("提示", "错误：" + ex.Message);
}
}
}
/// <summary>
/// Creates an element from the given feature and adds it to the active view's graphics container.
/// </summary>
/// <param name="feature">The feature from which to create the element.</param>
/// <param name="aView">The active view.</param>
/// <param name="markerColorName">The marker color.</param>
/// <returns>Returns a graphic element.</returns>
public static IElement MarkFeature(IFeature feature, IActiveView aView, string markerColorName)
{
IElement element = null;
if (feature != null && aView != null)
{
IPolygon poly = new PolygonClass();
try
{
ITopologicalOperator topOp = feature.Shape as ITopologicalOperator;
poly.SpatialReference = feature.Shape.SpatialReference;
poly = topOp.Buffer(aView.Extent.Width * .01) as IPolygon;
if (poly.SpatialReference.Equals(aView.FocusMap.SpatialReference) == false)
poly.Project(aView.FocusMap.SpatialReference);
ISimpleFillSymbol fillSym = DisplayMap.GenerateGenericFillSymbol(markerColorName, esriSimpleFillStyle.esriSFSSolid);
fillSym.Outline = DisplayMap.GenerateGenericLineSymbol(markerColorName, 2);
element = new PolygonElementClass();
element.Geometry = poly;
((IFillShapeElement)element).Symbol = fillSym;
IGraphicsContainer gCont = aView as IGraphicsContainer;
gCont.AddElement(element, 0);
aView.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, topOp.Buffer(aView.Extent.Width * .02).Envelope);
}
catch (Exception e)
{
// _logger.LogException(e);
}
}
return element;
}