private void btnCancel_Click(object sender, EventArgs e)
{
QueryIntersectionUI.DeleteAllElements(this.m_MapControl);
base.Close();
}
private void QueryIntersectionUI_FormClosed(object sender, FormClosedEventArgs e)
{
QueryIntersectionUI.DeleteAllElements(this.m_MapControl);
}
private void btnQuery_Click(object sender, EventArgs e)
{
if (this.m_pFtLayer != null)
{
int num = this.comboRoad1.FindString(this.comboRoad1.Text);
if (num < 0)
{
string text = $"道路名称[{this.comboRoad1.Text}]错误！";
MessageBox.Show(text);
}
else
{
QueryIntersectionUI.ItemInfo itemInfo = this.comboRoad1.Items[num] as QueryIntersectionUI.ItemInfo;
int oID = itemInfo.OID;
num = this.comboRoad1.FindString(this.comboRoad2.Text);
if (num < 0)
{
string text2 = $"道路名称[{this.comboRoad2.Text}]错误！";
MessageBox.Show(text2);
}
else
{
itemInfo = (this.comboRoad1.Items[num] as QueryIntersectionUI.ItemInfo);
int oID2 = itemInfo.OID;
IFeatureClass featureClass = this.m_pFtLayer.FeatureClass;
IFeature feature = featureClass.GetFeature(oID);
IFeature feature2 = featureClass.GetFeature(oID2);
IPolyline polyline = feature.Shape as IPolyline;
ITopologicalOperator topologicalOperator = polyline as ITopologicalOperator;
IGeometry geometry = null;
if (topologicalOperator != null)
{
geometry = topologicalOperator.Intersect(feature2.Shape, (esriGeometryDimension)1);
}
if (!geometry.IsEmpty)
{
IMultipoint multipoint = geometry as IMultipoint;
IPointCollection pointCollection = multipoint as IPointCollection;
IPoint point = pointCollection.get_Point(0);
if (point != null)
{
this.m_pGeoFlash = point;
this.timer1.Start();
this.timer1.Interval = 100;
IEnvelope envelope = new Envelope() as IEnvelope;
envelope = this.m_MapControl.Extent;
envelope.CenterAt(point);
this.m_MapControl.Extent = (envelope);
this.m_MapControl.Refresh((esriViewDrawPhase)32, null, envelope);
this.m_nTimerCount = 0;
QueryIntersectionUI.NewBasePointElement(this.m_MapControl, point);
}
}
else
{
MessageBox.Show(@"选择的道路没有交叉口!");
}
}
}
}
}
