// 空间分析：坡度
private void Slope(object in_raster, object out_raster)
{
ESRI.ArcGIS.SpatialAnalystTools.Slope pTool = new ESRI.ArcGIS.SpatialAnalystTools.Slope()
{
in_raster = in_raster,
out_raster = out_raster
};
GP.Execute(pTool, null);
}
private void btOk_Click(object sender, EventArgs e)
{
this.rtxtState.AppendText("正在执行，请您耐心等待...\n");
this.rtxtState.ScrollToCaret();
#region 步骤一：接收输入数据的路径
string sInputFile = this.txtInput.Text;
if (sInputFile.Equals(""))
{
MessageBox.Show("请选择输入DEM数据！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
this.rtxtState.AppendText("读取DEM数据...\n");
this.rtxtState.ScrollToCaret();
string sOutputFile = this.txtOutput.Text;
if (sOutputFile.Equals(""))
{
MessageBox.Show("请选择输出路径！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
this.rtxtState.AppendText("读取输出路径...\n");
this.rtxtState.ScrollToCaret();
#endregion
//string fileName = "地形地貌.mxd";
//axMapControl1.LoadMxFile(fileName);
////将地图全屏最大化
//axMapControl1.Extent = axMapControl1.FullExtent;
IVariantArray parameters = new VarArrayClass();
Geoprocessor GP = new Geoprocessor();
object sev = null;
this.rtxtState.AppendText("调用GP工具箱功能...\n");
this.rtxtState.ScrollToCaret();
ESRI.ArcGIS.SpatialAnalystTools.Slope slo = new ESRI.ArcGIS.SpatialAnalystTools.Slope();//计算坡度
slo.in_raster = sInputFile;
slo.output_measurement = smeasurement;
slo.z_factor = sfactor;
string sRoad1 = sOutputFile + sslope;
slo.out_raster = sRoad1;
this.rtxtState.AppendText("利用DEM数据计算坡度信息...\n");
this.rtxtState.ScrollToCaret();
ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator sCal1 = new ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator();
ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator sCal2 = new ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator();
ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator sCal3 = new ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator();
ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator sCal4 = new ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator();
//try
//{
GP.Execute(slo, null);//坡度计算
this.rtxtState.AppendText("计算坡度完成...\n");
this.rtxtState.ScrollToCaret();
//坡度<=8°&高程<=2500m
sOrder1 = "(\"" + sOutputFile + "/slope.tif" + "\"" + "<=8" + ")" + "&" + "(\"" + sInputFile + "\"" + "<=2500" + ")";
sCal1.expression = sOrder1;
sCal1.output_raster = sOutputFile + sSlope08;
this.rtxtState.AppendText("开始进行建设区分级计算...\n");
this.rtxtState.ScrollToCaret();
GP.Execute(sCal1, null);
this.rtxtState.AppendText("计算出“优化建设区”...\n");
this.rtxtState.ScrollToCaret();
//8°<坡度<=15°& 高程<=2500m
sOrder2 = "(" + "8<" + "\"" + sOutputFile + "/slope.tif" + "\")" + "&" + "(\"" + sOutputFile + "/slope.tif" + "\"" + "<=15" + ")" + "&" + "(\"" + sInputFile + "\"" + "<=2500" + ")";
sCal2.expression = sOrder2;
sCal2.output_raster = sOutputFile + sSlope815;
GP.Execute(sCal2, null);
this.rtxtState.AppendText("计算出“允许建设区”...\n");
this.rtxtState.ScrollToCaret();
//15°<坡度<=25°&高程<=2500m
sOrder3 = "(" + "15<" + "\"" + sOutputFile + "/slope.tif" + "\")" + "&" + "(\"" + sOutputFile + "/slope.tif" + "\"" + "<=25" + ")" + "&" + "(\"" + sInputFile + "\"" + "<=2500" + ")";
sCal3.expression = sOrder3;
sCal3.output_raster = sOutputFile + sSlope1525;
GP.Execute(sCal3, null);
this.rtxtState.AppendText("计算出“有条件建设区”...\n");
this.rtxtState.ScrollToCaret();
//25°<坡度 | 高程<=2500m
sOrder4 = "(\"" + sOutputFile + "/slope.tif" + "\"" + ">25" + ")" + "|" + "(\"" + sInputFile + "\"" + ">2500" + ")";
sCal4.expression = sOrder4;
sCal4.output_raster = sOutputFile + sSlope25;
GP.Execute(sCal4, null);
this.rtxtState.AppendText("计算出禁止建设区...\n");
this.rtxtState.ScrollToCaret();
this.rtxtState.AppendText("结果计算完成...\n");
this.rtxtState.ScrollToCaret();
//MessageBox.Show(GP.GetMessages(ref sev));
//修改mxd数据源路径
this.rtxtState.AppendText("开始将结果用地图输出展示，请稍等...\n");
this.rtxtState.ScrollToCaret();
IMapDocument pMapDocument = new MapDocumentClass();
pMapDocument.Open("模板地形地貌.mxd"); //打开本地的“模板地形地貌.mxd”地图文档，用来操作改mxd文件
IMap pMap = pMapDocument.get_Map(0);
IMapLayers pMapLayer = pMap as IMapLayers;
IRasterLayer pRasterLayer = new RasterLayerClass();
IWorkspaceFactory rasterWorkspaceFactory = new RasterWorkspaceFactoryClass();
IRasterWorkspace rasterWorkspace = (IRasterWorkspace)rasterWorkspaceFactory.OpenFromFile(txtOutput.Text, 0);
IRasterDataset pRasterDataset1 = rasterWorkspace.OpenRasterDataset("优化建设区.tif"); //打开"优化建设区.tif"为栅格图的文件名
pRasterLayer.CreateFromDataset(pRasterDataset1); //创建
pRasterLayer = pMapLayer.get_Layer(1) as IRasterLayer;
pRasterLayer.CreateFromDataset(pRasterDataset1);
//更改“允许建设区.tif”数据源路径
IRasterLayer pRasterLayer2 = new RasterLayerClass();
IRasterDataset pRasterDataset2 = rasterWorkspace.OpenRasterDataset("允许建设区.tif"); //打开"允许建设区.tif"为栅格图的文件名
pRasterLayer2.CreateFromDataset(pRasterDataset2); //创建
pRasterLayer2 = pMapLayer.get_Layer(2) as IRasterLayer;
pRasterLayer2.CreateFromDataset(pRasterDataset2);
//更改"有条件建设区.tif"数据源路径
IRasterLayer pRasterLayer3 = new RasterLayerClass();
IRasterDataset pRasterDataset3 = rasterWorkspace.OpenRasterDataset("有条件建设区.tif"); //打开"有条件建设区.tif"为栅格图的文件名
pRasterLayer3.CreateFromDataset(pRasterDataset3); //创建
pRasterLayer3 = pMapLayer.get_Layer(3) as IRasterLayer;
pRasterLayer3.CreateFromDataset(pRasterDataset3);
//更改"禁止建设区.tif"数据源路径
IRasterLayer pRasterLayer4 = new RasterLayerClass();
IRasterDataset pRasterDataset4 = rasterWorkspace.OpenRasterDataset("禁止建设区.tif"); //打开"禁止建设区.tif"为栅格图的文件名
pRasterLayer4.CreateFromDataset(pRasterDataset4); //创建
pRasterLayer4 = pMapLayer.get_Layer(4) as IRasterLayer;
pRasterLayer4.CreateFromDataset(pRasterDataset4);
pMapDocument.Save(true, true);//保存更改完路径后的mxd文件模板地形地貌2
//string fileName = "南湖村.mxd";// @"C:\Users\tangmeng\Desktop\农用地籍数据库\实验四\南湖数据\南湖村.mxd";
//pMap.LoadMxFile(fileName);
////将地图全屏最大化
//pMap.Extent = pMap.FullExtent;
string MdbFile = "模板地形地貌.mxd";
_PageLayoutControl.LoadMxFile(MdbFile);
//将mxd全屏最大化
_PageLayoutControl.Extent = _PageLayoutControl.FullExtent;
// tabControl1.SelectedTab = tabPage1;
this.rtxtState.AppendText("地图输出完成...\n");
this.rtxtState.ScrollToCaret();
}
private void btnOK_Click(object sender, EventArgs e)
{
if (txtSoilClay.Text.Equals(""))
{
MessageBox.Show("请选择输入土壤黏粒含量(%)数据！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if (txtSoilSlit.Text.Equals(""))
{
MessageBox.Show("请选择输入土壤粉粒含量(%)数据！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if (txtSoilSand.Text.Equals(""))
{
MessageBox.Show("请选择输入土壤砂粒含量(%)数据！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if (txtSoilOrganic.Text.Equals(""))
{
MessageBox.Show("请选择输入土壤有机物含量(%)数据！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if (txtDem.Text.Equals(""))
{
MessageBox.Show("请选择输入DEM数据！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if (txtC.Text.Equals(""))
{
MessageBox.Show("请选择输入地表覆被因子相关数据！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if (txtP.Text.Equals(""))
{
MessageBox.Show("请选择输入水土保持措施因子数据！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if (txtSavePath.Text.Equals(""))
{
MessageBox.Show("请选择结果输出路径！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if (rbtnR.Checked && txtR.Text.Equals(""))
{
MessageBox.Show("请选择输入降雨侵蚀力因子R相关数据！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if ((!rbtnR.Checked) && txtPcpPath.Text.Equals(""))
{
MessageBox.Show("请选择输入多年平均各月降雨量数据所在路径！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if ((!rbtnR.Checked) && txtPcpPrefix.Text.Equals(""))
{
MessageBox.Show("请输入数据前缀(如：pcp_*)！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if ((!rbtnR.Checked) && txtPcpSuffix.Text.Equals(""))
{
MessageBox.Show("请输入数据后缀(如：tif)！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
if ((!rbtnR.Checked) && txtYear.Text.Equals(""))
{
MessageBox.Show("请输入年平均降水量！", "提示", MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
//现创建一个存放临时文件的临时文件夹
string newPath = System.IO.Path.Combine(Temfile, "");
System.IO.Directory.CreateDirectory(newPath);
this.rtxtState.AppendText("正在执行，请您耐心等待...\n");
this.rtxtState.ScrollToCaret();
this.rtxtState.AppendText("开始准备配置文件...\n");
this.rtxtState.ScrollToCaret();
IVariantArray parameters = new VarArrayClass();
Geoprocessor GP = new Geoprocessor();
this.rtxtState.AppendText("准备调用GP工具箱...\n");
this.rtxtState.ScrollToCaret();
//ESRI.ArcGIS.DataManagementTools.GetRasterProperties NDVIMin = new ESRI.ArcGIS.DataManagementTools.GetRasterProperties();
//ESRI.ArcGIS.DataManagementTools.GetRasterProperties NDVIMax = new ESRI.ArcGIS.DataManagementTools.GetRasterProperties();
ESRI.ArcGIS.SpatialAnalystTools.Slope slo = new ESRI.ArcGIS.SpatialAnalystTools.Slope();//计算坡度
ESRI.ArcGIS.SpatialAnalystTools.Fill demFill = new ESRI.ArcGIS.SpatialAnalystTools.Fill();
ESRI.ArcGIS.SpatialAnalystTools.FlowDirection Filldec = new ESRI.ArcGIS.SpatialAnalystTools.FlowDirection();
ESRI.ArcGIS.SpatialAnalystTools.FlowAccumulation DecAcc = new ESRI.ArcGIS.SpatialAnalystTools.FlowAccumulation();
ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator sCals = new ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator();
ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator sCalm = new ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator();
ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator sCalLS = new ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator();
ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator sCalR = new ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator();
ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator sCalK = new ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator();
ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator sCalA = new ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator();
ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator sCalC = new ESRI.ArcGIS.SpatialAnalystTools.RasterCalculator();
//1计算参数R
if (rbtnR.Checked)
{
sR = txtR.Text;
this.rtxtState.AppendText("降水侵蚀因子R读取成功，准备计算参数K...\n");
this.rtxtState.ScrollToCaret();
}
else
{
this.rtxtState.AppendText("开始计算参数R...\n");
this.rtxtState.ScrollToCaret();
string sFileName = "";
string sYear = txtYear.Text;
for (int i = 1; i < 13; i++)
{
sFileName = txtPcpPath.Text + "\\" + this.txtPcpPrefix.Text + i.ToString() + "." + this.txtPcpSuffix.Text;
strExp = "(1.735 * Power(10,1.5 * Log10((" + "\"" + sFileName + "\"" + " * " + "\"" + sFileName + "\"" + ") /" + "\"" + txtYear.Text + "\")" + " - 0.08188))";
if (i < 12)
{
sR2 = sR2 + strExp + "+";
}
else
{
sR2 = sR2 + strExp;
}
}
sR3 = sR2;
sCalR.expression = sR3;
sR = Temfile + "\\CalR.tif";
sCalR.output_raster = sR;
GP.Execute(sCalR, null);
this.rtxtState.AppendText("降水侵蚀因子R计算成功，准备计算参数K...\n");
this.rtxtState.ScrollToCaret();
}
//2计算参数K
sK = "(0.2 + 0.3 * Exp(-0.0256 *" + "\"" + txtSoilSand.Text + "\"" + "* (1.0 - " + "\"" + txtSoilSlit.Text + "\"" + " / 100.0))) * Power((" + "\"" + txtSoilSlit.Text + "\"" + " * 1.0 / (" + "\"" + txtSoilClay.Text + "\"" + " * 1.0 + " + "\"" + txtSoilSlit.Text + "\"" + " * 1.0)), 0.3) * (1.0 - 0.25 * " + "\"" + txtSoilOrganic.Text + "\"" + " * 0.58 / (" + "\"" + txtSoilOrganic.Text + "\"" + " * 0.58 + Exp(3.72 - 2.95 * " + "\"" + txtSoilOrganic.Text + "\"" + " * 0.58))) * (1.0 - (0.7 * (1.0 - " + "\"" + txtSoilSand.Text + "\"" + " / 100.0)) / ((1.0 - " + "\"" + txtSoilSand.Text + "\"" + " / 100.0) + Exp(-5.51 + 22.9 * (1.0 - " + "\"" + txtSoilSand.Text + "\"" + " / 100.0))))";
sCalK.expression = sK;
CalKpath = Temfile + "\\CalK.tif";
sCalK.output_raster = CalKpath;
GP.Execute(sCalK, null);
this.rtxtState.AppendText("土壤可蚀性因子K计算成功...\n");
this.rtxtState.ScrollToCaret();
this.rtxtState.AppendText("准备计算地形因子LS...\n");
this.rtxtState.ScrollToCaret();
//3计算参数LS
//Fill Dem
this.rtxtState.AppendText("开始填充洼地...\n");
this.rtxtState.ScrollToCaret();
demFill.in_surface_raster = txtDem.Text;
demFill.out_surface_raster = Temfile + "\\demFill.tif";
GP.Execute(demFill, null);
// cal FlowDirection
this.rtxtState.AppendText("开始计算流向...\n");
this.rtxtState.ScrollToCaret();
Filldec.in_surface_raster = Temfile + "\\demFill.tif";
Filldec.out_flow_direction_raster = Temfile + "\\FillDec.tif";
GP.Execute(Filldec, null);
//cal FlowAccumulation
this.rtxtState.AppendText("开始计算流量...\n");
this.rtxtState.ScrollToCaret();
Filldec.in_surface_raster = Temfile + "\\FillDec.tif";
FlowAcc = Temfile + "\\FlowAcc.tif";
Filldec.out_flow_direction_raster = FlowAcc;
GP.Execute(Filldec, null);
//先计算坡度
this.rtxtState.AppendText("开始计算坡度...\n");
this.rtxtState.ScrollToCaret();
slo.in_raster = txtDem.Text;
slo.output_measurement = "DEGREE";
slo.z_factor = 1;
string sRoad1 = Temfile + "\\Slope.tif";
slo.out_raster = sRoad1;
GP.Execute(slo, null);//坡度计算
//cal S
sS = "Con(" + "\"" + sRoad1 + "\"" + " < 5,10.8 * Sin(" + "\"" + sRoad1 + "\"" + " * 3.14 / 180) + 0.03,Con(" + "\"" + sRoad1 + "\"" + " >= 10,21.9 * Sin(" + "\"" + sRoad1 + "\"" + " * 3.14 / 180) - 0.96,16.8 * Sin(" + "\"" + sRoad1 + "\"" + " * 3.14 / 180) - 0.5))";
sCals.expression = sS;
Calspath = Temfile + "\\CalS.tif";
sCals.output_raster = Calspath;
GP.Execute(sCals, null);
//cal m
sM = "Con(" + "\"" + sRoad1 + "\"" + " <= 1,0.2,Con(" + "\"" + sRoad1 + "\"" + " <= 3,0.3,Con(" + "\"" + sRoad1 + "\"" + " <= 5,0.4,0.5)))";
sCalm.expression = sM;
Calmpath = Temfile + "\\CalM.tif";
sCalm.output_raster = Calmpath;
GP.Execute(sCalm, null);
//cal ls
sLs = "\"" + Calspath + "\"" + " * Power((" + "\"" + CalKpath + "\"" + " * " + this.txtCellSize.Text + " / 22.1)," + "\"" + Calmpath + "\"" + ")";
sCalLS.expression = sLs;
Callspath = Temfile + "\\CalLS.tif";
sCalm.output_raster = Calmpath;
sCalLS.output_raster = Callspath;
GP.Execute(sCalLS, null);
this.rtxtState.AppendText("地形因子LS计算成功...\n");
this.rtxtState.ScrollToCaret();
//4计算参数C
if (rbtnVegCover.Checked)
{
CalCpath = txtC.Text;
this.rtxtState.AppendText("地表覆盖因子C读取成功...\n");
this.rtxtState.ScrollToCaret();
}
else
{
this.rtxtState.AppendText("准备计算地表覆盖因子C...\n");
this.rtxtState.ScrollToCaret();
//计算NDVI最小值
//NDVIMin.in_raster = txtC.Text;
//CalKpath = txtDem.Text + "/CalK.tif";
//NDVIMin.property_type = "MINIMUM";
//GP.Execute(sCalK, null);
double dMin = 0;
IGeoProcessor2 gp = new GeoProcessorClass();
gp.OverwriteOutput = true;
// Create a variant array to hold the parameter values.
IVariantArray parameters2 = new VarArrayClass();
IGeoProcessorResult result = new GeoProcessorResultClass();
// Set parameter values.
parameters2.Add(txtC.Text);
parameters2.Add("MINIMUM");
result = gp.Execute("GetRasterProperties_management", parameters2, null);
dMin = (double)result.ReturnValue;
//计算NDVI最大值
double dMax = 0;
IGeoProcessor2 gp2 = new GeoProcessorClass();
gp2.OverwriteOutput = true;
// Create a variant array to hold the parameter values.
IVariantArray parameters3 = new VarArrayClass();
IGeoProcessorResult result3 = new GeoProcessorResultClass();
// Set parameter values.
parameters3.Add(txtC.Text);
parameters3.Add("MAXIMUM");
result3 = gp2.Execute("GetRasterProperties_management", parameters3, null);
dMax = (double)result3.ReturnValue;
//最后计算C
sC = "(" + "\"" + txtC.Text + "\"" + " - " + dMin + ") / (" + dMax + " - " + dMin + ")";
sCalC.expression = sC;
CalCpath = Temfile + "\\CalC.tif";
sCalC.output_raster = CalCpath;
GP.Execute(sCalC, null);
this.rtxtState.AppendText("地表覆盖因子C计算成功...\n");
this.rtxtState.ScrollToCaret();
}
//5计算P
sP = txtP.Text;
this.rtxtState.AppendText("读取水土保持措施因子P...\n");
this.rtxtState.ScrollToCaret();
//最后开始计算A=R*K*LS*C*P
this.rtxtState.AppendText("准备计算水土流失方程...\n");
this.rtxtState.ScrollToCaret();
sA = "\"" + sR + "\"" + " * " + "\"" + CalKpath + "\"" + " * " + "\"" + Callspath + "\"" + " * (1 - " + "\"" + CalCpath + "\"" + ") * " + "\"" + sP + "\"";
sCalA.expression = sA;
sCalA.output_raster = txtSavePath.Text;
GP.Execute(sCalA, null);
//删除临时文件夹
string deleteFile = Temfile;
DeleteFolder(deleteFile);
this.rtxtState.AppendText("计算成功，已将结果成功保存...\n");
this.rtxtState.ScrollToCaret();
}
