private void btnGenerate_Click(object sender, EventArgs e)
{
try
{
frmProgress pfrmProgress = new frmProgress();
pfrmProgress.lblStatus.Text = "Processing:";
pfrmProgress.Show();
int intProgress = 0;
REngine pEngine = mForm.pEngine;
//Declare constants
double dblDistError = Convert.ToDouble(txtDistance.Text);
double dblDirection = Convert.ToDouble(txtDirections.Text);
int intNSimulation = Convert.ToInt32(txtNSimulation.Text);
string strX = cboX.Text;
string strY = cboY.Text;
mForm.strValue = cboFieldName.Text;
//Load Source Layer
string strLayerName = cboSourceLayer.Text;
int intLIndex = pSnippet.GetIndexNumberFromLayerName(pActiveView, strLayerName);
ILayer pLayer = mForm.axMapControl1.get_Layer(intLIndex);
IFeatureLayer pFLayer = pLayer as IFeatureLayer;
IFeatureClass pFClass = pFLayer.FeatureClass;
int nFeature = pFClass.FeatureCount(null);
IFeatureCursor pFCursor = pFLayer.Search(null, true);
IFeature pFeature = pFCursor.NextFeature();
//Load Target Layer
mForm.strTargetLayerName = cboTargetLayer.Text;
int intTargetIndex = pSnippet.GetIndexNumberFromLayerName(pActiveView, mForm.strTargetLayerName);
ILayer pTargetLayer = mForm.axMapControl1.get_Layer(intTargetIndex);
IFeatureLayer pFTargetLayer = pTargetLayer as IFeatureLayer;
IFeatureClass pFTargetClass = pFTargetLayer.FeatureClass;
int nTargetFeature = pFTargetClass.FeatureCount(null);
//Store X, Y and Value to array
double[] vecValue = new double[nFeature];
double[,] arrXY = new double[nFeature, 2];
int intXIdx = pFClass.FindField(strX);
int intYIdx = pFClass.FindField(strY);
int intVIdx = pFClass.FindField(mForm.strValue);
int i = 0;
while (pFeature != null)
{
vecValue[i] = Convert.ToDouble(pFeature.get_Value(intVIdx));
arrXY[i, 0] = Convert.ToDouble(pFeature.get_Value(intXIdx));
arrXY[i, 1] = Convert.ToDouble(pFeature.get_Value(intYIdx));
i++;
pFeature = pFCursor.NextFeature();
}
pFCursor.Flush();
////Plot command for R
//StringBuilder plotCommmand = new StringBuilder();
//Get the file path and name to create spatial weight matrix
string strNameR = pSnippet.FilePathinRfromLayer(pFTargetLayer);
if (strNameR == null)
{
return;
}
//Load Library and Data
pEngine.Evaluate("library(maptools);library(foreign);library(sp);library(circular);");
pEngine.Evaluate("ct.shp <- readShapePoly('" + strNameR + "')");
//Create Shapepointdataframe in R
NumericMatrix nmXY = pEngine.CreateNumericMatrix(arrXY);
pEngine.SetSymbol("xy.coord.old", nmXY);
NumericVector nvValue = pEngine.CreateNumericVector(vecValue);
pEngine.SetSymbol("LEAD", nvValue);
pEngine.Evaluate("v.bll <- as.data.frame(LEAD)");
pEngine.Evaluate("old.points <- SpatialPointsDataFrame(xy.coord.old, v.bll)");
string strOverMethod = "";
if (cboStat.Text == "Mean")
{
strOverMethod = ", fn=mean";
}
//Save Original value
pEngine.Evaluate("n.obs <- nrow(v.bll)");
pEngine.Evaluate("ori.value <- as.matrix(over(ct.shp, old.points" + strOverMethod + "))");
NumericVector nvOriValue = pEngine.Evaluate("ori.value").AsNumeric();
mForm.arrOrivalue = new double[nTargetFeature];
nvOriValue.CopyTo(mForm.arrOrivalue, nTargetFeature);
//Create Matrix to store simulation results
pEngine.Evaluate("results.matrix <- matrix(NA, nrow=nrow(ct.shp), ncol=" + intNSimulation.ToString() + ")");
//Simulation
for (int j = 1; j <= intNSimulation; j++)
{
//Progress bar
intProgress = j * 100 / intNSimulation;
pfrmProgress.pgbProgress.Value = intProgress;
//pfrmProgress.pgbProgress.Refresh();
pfrmProgress.lblStatus.Text = "Processing (" + intProgress.ToString() + "%)";
//pfrmProgress.lblStatus.Refresh();
pfrmProgress.Invalidate();
//Create Direction from vonmises distribution
pEngine.Evaluate("dir.new <- as.numeric(rvonmises(n.obs, mu=circular(" + txtDirections.Text + ", units='degrees'), kappa=" + txtConcetration.Text + "))");
//Add distance error
if (rbtRandom.Checked == true)
{
pEngine.Evaluate("dist.error <- runif(n.obs, 0, " + txtDistance.Text + ")");
}
else
{
pEngine.Evaluate("dist.error <- " + txtDistance.Text);
}
//Create New points and save to SpatialPointsDataFrame
pEngine.Evaluate("x.new <- xy.coord.old[,1] + cos(dir.new)*dist.error; y.new <- xy.coord.old[,2]+ sin(dir.new)*dist.error");
pEngine.Evaluate("xy.coord <- cbind(x.new, y.new)");
pEngine.Evaluate("new.points <- SpatialPointsDataFrame(xy.coord, v.bll)");
//Save results <- have to insert options for summary statistics, (only possilbe by Mean) 1/29/15
pEngine.Evaluate("results.matrix[," + j.ToString() + "] <- as.matrix(over(ct.shp, new.points" + strOverMethod + "))");
}
//Save Simulation results to Array
NumericMatrix nmResults = pEngine.Evaluate("results.matrix").AsNumericMatrix();
mForm.arrSimuResults = new double[nTargetFeature, intNSimulation];
nmResults.CopyTo(mForm.arrSimuResults, nTargetFeature, intNSimulation);
//Create matrix to save summary results(mean, var, mean/var)
pfrmProgress.lblStatus.Text = "Creating Summary";
pfrmProgress.Invalidate();
pEngine.Evaluate("sum.mat <- matrix(NA,nrow=nrow(ct.shp), ncol=6)");
//Calculate mean and variance of simulation
for (int j = 1; j <= nTargetFeature; j++)
{
pEngine.Evaluate("sum.mat[" + j.ToString() + ",1] <- mean(results.matrix[" + j.ToString() + ",])");
pEngine.Evaluate("sum.mat[" + j.ToString() + ",2] <- var(results.matrix[" + j.ToString() + ",])");
pEngine.Evaluate("sum.mat[" + j.ToString() + ",5] <- min(results.matrix[" + j.ToString() + ",])");
pEngine.Evaluate("sum.mat[" + j.ToString() + ",6] <- max(results.matrix[" + j.ToString() + ",])");
pEngine.Evaluate("diff.ori <- (results.matrix[" + j.ToString() + ",]- ori.value[" + j.ToString() + "])^2"); //Needs to be changed
pEngine.Evaluate("sum.mat[" + j.ToString() + ",4] <- sum(diff.ori)/" + intNSimulation.ToString());
}
//Calculate mean/variance
pEngine.Evaluate("sum.mat[,3] <- sum.mat[,2]/sum.mat[,1]");
//Save summary results to array
NumericMatrix nmSummary = pEngine.Evaluate("sum.mat").AsNumericMatrix();
arrSummary = new double[nTargetFeature, 6];
nmSummary.CopyTo(arrSummary, nTargetFeature, 6);
//Remove all memory
pEngine.Evaluate("rm(list=ls(all=TRUE))");
//Enable to the histogram identify tool for simulation results
if (mForm.arrSimuResults != null)
{
chkEnable.Enabled = true;
}
//Add Summary data to Target feature Class
//Create filed to store results
if (pFTargetClass.FindField("Ori_Mean") == -1)
{
IFieldEdit addField = new FieldClass();
addField.Name_2 = "Ori_Mean";
addField.Type_2 = esriFieldType.esriFieldTypeDouble;
pFTargetClass.AddField(addField);
}
if (pFTargetClass.FindField("Mean_val") == -1)
{
IFieldEdit addField = new FieldClass();
addField.Name_2 = "Mean_val";
addField.Type_2 = esriFieldType.esriFieldTypeDouble;
pFTargetClass.AddField(addField);
}
if (pFTargetClass.FindField("Var_val") == -1)
{
IFieldEdit addField = new FieldClass();
addField.Name_2 = "Var_val";
addField.Type_2 = esriFieldType.esriFieldTypeDouble;
pFTargetClass.AddField(addField);
}
if (pFTargetClass.FindField("Mean_Var") == -1)
{
IFieldEdit addField = new FieldClass();
addField.Name_2 = "Mean_Var";
addField.Type_2 = esriFieldType.esriFieldTypeDouble;
pFTargetClass.AddField(addField);
}
if (pFTargetClass.FindField("Var_Ori") == -1)
{
IFieldEdit addField = new FieldClass();
addField.Name_2 = "Var_Ori";
addField.Type_2 = esriFieldType.esriFieldTypeDouble;
pFTargetClass.AddField(addField);
}
if (pFTargetClass.FindField("MIN") == -1)
{
IFieldEdit addField = new FieldClass();
addField.Name_2 = "MIN";
addField.Type_2 = esriFieldType.esriFieldTypeDouble;
pFTargetClass.AddField(addField);
}
if (pFTargetClass.FindField("MAX") == -1)
{
IFieldEdit addField = new FieldClass();
addField.Name_2 = "MAX";
addField.Type_2 = esriFieldType.esriFieldTypeDouble;
pFTargetClass.AddField(addField);
}
//Save summary results to Target shapefile
int intOriMeanIdx = pFTargetClass.FindField("Ori_Mean");
int intMeanIdx = pFTargetClass.FindField("Mean_val");
int intVarIdx = pFTargetClass.FindField("Var_val");
int intMVIdx = pFTargetClass.FindField("Mean_Var");
int intVOIdx = pFTargetClass.FindField("Var_Ori");
int intMaxIdx = pFTargetClass.FindField("MAX");
int intMinIdx = pFTargetClass.FindField("MIN");
IFeatureCursor pTFUCursor = pFTargetClass.Update(null, false);
IFeature pTFeature = pTFUCursor.NextFeature();
i = 0;
while (pTFeature != null)
{
pTFeature.set_Value(intOriMeanIdx, mForm.arrOrivalue[i]);
pTFeature.set_Value(intMeanIdx, arrSummary[i, 0]);
pTFeature.set_Value(intVarIdx, arrSummary[i, 1]);
pTFeature.set_Value(intMVIdx, arrSummary[i, 2]);
pTFeature.set_Value(intVOIdx, arrSummary[i, 3]);
pTFeature.set_Value(intMinIdx, arrSummary[i, 4]);
pTFeature.set_Value(intMaxIdx, arrSummary[i, 5]);
pTFeature.Store();
i++;
pTFeature = pTFUCursor.NextFeature();
}
pfrmProgress.Close();
MessageBox.Show("Done");
}
catch (Exception ex)
{
MessageBox.Show(this.Handle.ToString() + " Error:" + ex.Message);
return;
}
}