//自定义叠加传值
private void CustomOverlapTranValue()
{
frmProgressBar1 pb = null;
//
IFeatureCursor fCur = null;
IFeatureCursor fCur_fc2 = null;
//
try
{
this.button1.Enabled = false;
this.Cursor = Cursors.WaitCursor;
//获取参数
string updateField = this.CB_Fields1.Text.Trim();
string valFromField = this.CB_Fields2.Text.Trim();
pb = new frmProgressBar1();
pb.Text = "空间叠加传值进度";
pb.Caption1.Text = "预处理中......";
pb.progressBar1.Maximum = 10;
pb.progressBar1.Value = 0;
pb.Show(this);
Application.DoEvents();
//2 开始空间叠加操作
pb.Caption1.Text = "空间叠加中...";
pb.progressBar1.Value += 1;
Application.DoEvents();
//
IFeatureClass fc1 = null;
IFeatureClass fc2 = null;
//
object objval = "";
double geo_area = 0.0;
double geo_area_max = 0.0;
//目标图层
object obj = this.CB_LayerList1.SelectedItem;
if (obj != null && obj is CommonComboBoxItem)
{
CommonComboBoxItem item = obj as CommonComboBoxItem;
fc1 = item.Tag as IFeatureClass;
}
//源图层
obj = this.CB_LayerList2.SelectedItem;
if (obj != null && obj is CommonComboBoxItem)
{
CommonComboBoxItem item = obj as CommonComboBoxItem;
fc2 = item.Tag as IFeatureClass;
}
//
if (fc1 != null && fc2 != null)
{
pb.progressBar1.Maximum = fc1.FeatureCount(null);
Application.DoEvents();
//目标图层
fCur = fc1.Update(null, false);
if (fCur != null)
{
int recIndex = 0;
IFeature feat_fc1 = fCur.NextFeature();
while (feat_fc1 != null)
{
ZhFeature zhfeat_fc1 = new ZHFeaturePolygon(feat_fc1);
objval = "";
geo_area = 0.0;
geo_area_max = 0.0;
//获取面积最大的面积值
#region //与fc2相交运算功能
ISpatialFilter sFilter = new SpatialFilterClass();
sFilter.Geometry = feat_fc1.ShapeCopy;
sFilter.GeometryField = fc2.ShapeFieldName;
sFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects;
fCur_fc2 = fc2.Search(sFilter, false);
IFeature feat_fc2 = fCur_fc2.NextFeature();
while (feat_fc2 != null)
{
ZhFeature zhfeat_fc2 = new ZHFeaturePolygon(feat_fc2);
IGeometry t_geo = null;
#region //获取相交对象
IGeometry topGeo = feat_fc1.ShapeCopy;
IGeometry topGeo2 = feat_fc2.ShapeCopy;
ITopologicalOperator Topoperator = (ITopologicalOperator)topGeo;
Topoperator.Simplify();
ITopologicalOperator TopGeometry = (ITopologicalOperator)topGeo2;
TopGeometry.Simplify();
try
{
t_geo = Topoperator.Intersect(topGeo2, topGeo.Dimension);
}
catch (Exception ee)
{
t_geo = null;
}
#endregion
if (t_geo is IArea)
{ //面积
geo_area = (t_geo as IArea).Area;
}
else if (t_geo is ICurve)
{ //长度
geo_area = (t_geo as ICurve).Length;
}
if (geo_area >= geo_area_max)
{
objval = zhfeat_fc2.getFieldValue(valFromField);
geo_area_max = geo_area;
}
//下一个要素
feat_fc2 = fCur_fc2.NextFeature();
}
if (fCur_fc2 != null)
{
TokayWorkspace.ComRelease(fCur_fc2);
fCur_fc2 = null;
}
#endregion
//设置值
zhfeat_fc1.setFieldValue(updateField, objval);
fCur.UpdateFeature(feat_fc1);
//
recIndex += 1;
pb.progressBar1.Value = recIndex;
pb.Caption1.Text = "正在叠加传值......... 第" + pb.progressBar1.Value + "个/共" + pb.progressBar1.Maximum + "个";
Application.DoEvents();
//
//下一个要素
feat_fc1 = fCur.NextFeature();
}
}
if (fCur != null)
{
fCur.Flush();
}
if (fCur != null)
{
TokayWorkspace.ComRelease(fCur);
fCur = null;
}
if (pb != null)
{
pb.Close();
pb.Dispose();
pb = null;
}
MessageBox.Show("传值完毕!", "提示");
}
}
catch (Exception ee)
{
Log.WriteLine(ee);
MessageBox.Show(ee.Message, "提示");
}
finally
{
this.button1.Enabled = true;
this.Cursor = Cursors.Default;
if (fCur != null)
{
TokayWorkspace.ComRelease(fCur);
fCur = null;
}
if (fCur_fc2 != null)
{
TokayWorkspace.ComRelease(fCur_fc2);
fCur_fc2 = null;
}
if (pb != null)
{
pb.Close();
pb.Dispose();
pb = null;
}
}
}
