private bool PolygonToRaster(ILayer selectedLayer, string inputType, string valueField, string priorityField)
{
try
{
ESRI.ArcGIS.Geoprocessor.Geoprocessor gp = new ESRI.ArcGIS.Geoprocessor.Geoprocessor();
ESRI.ArcGIS.ConversionTools.PolygonToRaster polygonToRaster = new ESRI.ArcGIS.ConversionTools.PolygonToRaster();
polygonToRaster.in_features = selectedLayer;
polygonToRaster.value_field = valueField;//"distance";
polygonToRaster.out_rasterdataset = AppSingleton.Instance().WorkspacePath + "\\Poly_Raster_" + selectedLayer.Name;
polygonToRaster.cell_assignment = "MAXIMUM_AREA";
polygonToRaster.cellsize = AppSingleton.Instance().CellSize;
if (priorityField != "")
{
polygonToRaster.priority_field = priorityField; //"priority";
}
IFeatureLayer fLayer = AppSingleton.Instance().SinirLayer as IFeatureLayer;
IEnvelope env = fLayer.AreaOfInterest.Envelope;
gp.SetEnvironmentValue("Extent", env.XMin.ToString() + " " + env.YMin.ToString() + " " + env.XMax.ToString() + " " + env.YMax.ToString());
gp.AddOutputsToMap = AppSingleton.Instance().AralariEkle;
gp.OverwriteOutput = true;
gp.Execute(polygonToRaster, null);
return(true);
}
catch (Exception ex)
{
return(false);
}
}
private void button1_Click(object sender, EventArgs e)
{
string myListBoxContent;
double myCellSize;
myCellSize = System.Convert.ToDouble(textBox4.Text);
//try
{
myListBoxContent = "正在转换所选ShpFile到栅格数据...";
textBox3.Text += myListBoxContent;
ILayer selectedLayer = mainForm.axMapControl1.get_Layer(comboBox1.SelectedIndex);
IFeatureLayer selectedFeatureLayer = selectedLayer as IFeatureLayer;
IFeatureClass selectedFeatureClass = selectedFeatureLayer.FeatureClass;
Geoprocessor pGeoprocessor = new Geoprocessor();
pGeoprocessor.OverwriteOutput = true;
if (selectedFeatureClass.ShapeType == esriGeometryType.esriGeometryPoint)
{
ESRI.ArcGIS.ConversionTools.PointToRaster pPointToRaster =
new ESRI.ArcGIS.ConversionTools.PointToRaster();
pGeoprocessor.SetEnvironmentValue("workspace", myFilePath);
pPointToRaster.cellsize = myCellSize;
pPointToRaster.in_features = selectedFeatureLayer;
pPointToRaster.value_field = selectedFeatureClass.Fields.get_Field(comboBox2.SelectedIndex);
pPointToRaster.out_rasterdataset = textBox2.Text + ".tif";
pGeoprocessor.Execute(pPointToRaster, null);
myListBoxContent = "转换成功！";
textBox3.Text += Environment.NewLine + Environment.NewLine + myListBoxContent;
}
else if (selectedFeatureClass.ShapeType == esriGeometryType.esriGeometryPolyline)
{
ESRI.ArcGIS.ConversionTools.PolylineToRaster pPolylineToRaster =
new ESRI.ArcGIS.ConversionTools.PolylineToRaster();
pGeoprocessor.SetEnvironmentValue("workspace", myFilePath);
pPolylineToRaster.cellsize = myCellSize;
pPolylineToRaster.in_features = selectedFeatureLayer;
pPolylineToRaster.value_field = selectedFeatureClass.Fields.get_Field(comboBox2.SelectedIndex);
pPolylineToRaster.out_rasterdataset = textBox2.Text + ".tif";
pGeoprocessor.Execute(pPolylineToRaster, null);
myListBoxContent = "转换成功！";
textBox3.Text += Environment.NewLine + Environment.NewLine + myListBoxContent;
}
else if (selectedFeatureClass.ShapeType == esriGeometryType.esriGeometryPolygon)
{
ESRI.ArcGIS.ConversionTools.PolygonToRaster pPolygonToRaster =
new ESRI.ArcGIS.ConversionTools.PolygonToRaster();
pGeoprocessor.SetEnvironmentValue("workspace", myFilePath);
pPolygonToRaster.cellsize = myCellSize;
pPolygonToRaster.in_features = selectedFeatureLayer;
pPolygonToRaster.value_field = selectedFeatureClass.Fields.get_Field(comboBox2.SelectedIndex);
pPolygonToRaster.out_rasterdataset = textBox2.Text + ".tif";
pGeoprocessor.Execute(pPolygonToRaster, null);
myListBoxContent = "转换成功！";
textBox3.Text += Environment.NewLine + Environment.NewLine + myListBoxContent;
}
else
{
MessageBox.Show("请选择正确的ShapeFile文件");
}
if (MessageBox.Show("是否将生成的新Raster文件添加到图层", "Confirm Message",
MessageBoxButtons.OKCancel, MessageBoxIcon.Question) == DialogResult.OK)
{
IRasterLayer myRasterLayer = new RasterLayerClass();
try
{
myRasterLayer.CreateFromFilePath(myFilePath + "\\" + textBox2.Text + ".tif");
mainForm.axMapControl1.AddLayer(myRasterLayer, 0);
}
catch
{
MessageBox.Show("打开文件错误！");
}
}
}
}
