public IEnvelope GetPixelBounds(int col, int row)
{
double x, y, x2, y2;
_image.ImageToProjection(col, row, out x, out y);
_image.ImageToProjection(col + 1, row + 1, out x2, out y2);
return(new Envelope(x, x2, Math.Min(y, y2), Math.Max(y, y2)));
}
public Vertical_Profiling_Form(MapWinGIS.Image demImg, MapWinGIS.Point pt1, MapWinGIS.Point pt2)
{
this.InitializeComponent();
//MapWinGIS.Point pt1 = new MapWinGIS.Point();
//pt1.Set(0, 4);
//MapWinGIS.Point pt2 = new MapWinGIS.Point();
//pt2.Set(2, 0);
int row1, col1;
demImg.ProjectionToImage(pt1.x, pt1.y, out col1, out row1);
int row2, col2;
demImg.ProjectionToImage(pt2.x, pt2.y, out col2, out row2);
var myModel = new PlotModel {
Title = "Mặt cắt dọc"
};
//double step = 0.1;
//int a_count = (int)Math.Abs((pt1.x - pt2.x) / step);
//var plot3_Series = new LineSeries { StrokeThickness = 1, MarkerSize = 1 };
//for (int i = 0; i < a_count; i++)
//{
// int row;
// int column;
// double x_val = pt1.x + i*step;
// double y_val = LineEquation(pt1, pt2, x_val);
// demImg.ProjectionToImage(x_val, y_val, out column, out row);
// double yDEM = 0;
// demImg.Band[1].get_Value(column,row,out yDEM);
// plot3_Series.Points.Add(new DataPoint(x_val, yDEM));
//}
MapWinGIS.Point ptTmp1 = new MapWinGIS.Point();
ptTmp1.Set(col1 + 0.5, row1 + 0.5);
MapWinGIS.Point ptTmp2 = new MapWinGIS.Point();
ptTmp2.Set(col2 + 0.5, row2 + 0.5);
int a_count = Math.Abs(col1 - col2);
var plot3_Series = new LineSeries {
StrokeThickness = 1, MarkerSize = 1
};
for (int i = 0; i < a_count; i++)
{
double x_val = col1 + i;
double y_val = LineEquation(ptTmp1, ptTmp2, x_val);
double yDEM = 0;
demImg.Band[1].get_Value((int)x_val, (int)y_val, out yDEM);
demImg.ImageToProjection((int)x_val, (int)y_val, out x_val, out y_val);
plot3_Series.Points.Add(new DataPoint(x_val, yDEM));
}
myModel.Series.Add(plot3_Series);
this.plotView1.Model = myModel;
}