Comments by ManojRGEC (Top 12 by date)

Thanks, it is working for me. :)

Thanks for your help.

do you have any example to do it?

I have a shape file containing two polygon. how to convert that two polygon into one multipolygon in c#.

Thanks

My file name contains a additional dot (.) as given below. I am using Oledb connection string given below.
public const string ConnectionStringTemplateJet = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source={0};Extended Properties=dBase IV;";


Getting error at ExecuteReader() method

_dbConnection = new OleDbConnection(connectionString);
_dbConnection.Open();
_dbCommand = new OleDbCommand(selectString, _dbConnection);
_dbReader = _dbCommand.ExecuteReader();

Thanks for the answer, but it is not working for me. I am getting same error i.e. "The Microsoft Jet database engine could not find the object 'sample.data'. Make sure the object exists and that you spell its name and the path name correctly."

how can we solve the above problem.?

I need c# code to compare it by color code. I have tried to compare it by pixel by pixel.

I have used below code and it is running without error. But below code doesn't fulfill my requirement.

public Difference Compare(string img1_, string img2_)
{
//total number of pixels

Image img1 = Image.FromFile(img1_);
Image img2 = Image.FromFile(img2_);
int pixelNb = img1.Width * img1.Height;
Double percent = 100;
Bitmap resized_img2_ = ResizeBitmap((Bitmap)img2, img1.Width, img1.Height);
for (int i = 0; i < img1.Width; i++)
{
for (int j = 0; j < img1.Height; j++)
{
percent -= ColorCompare(((Bitmap)img1).GetPixel(i, j), ((Bitmap)resized_img2_).GetPixel(i, j)) / pixelNb;
}
}
Difference percentageDifference = new Difference();
percentageDifference.difference = 100 - percent;
return percentageDifference;
}

public Bitmap ResizeBitmap(Bitmap b, int nWidth, int nHeight)
{
Bitmap result = new Bitmap(nWidth, nHeight);
using (Graphics g = Graphics.FromImage((Image)result))
g.DrawImage(b, 0, 0, nWidth, nHeight);
return result;
}
public Double ColorCompare(Color c1, Color c2)
{
return Double.Parse((Math.Abs(c1.B - c2.B) + Math.Abs(c1.R - c2.R) + Math.Abs(c1.G - c2.G)).ToString()) * 100 / (3 * 255);
}