i have to add data to an xml file everytime the mouse event happens! here is my code i will explain you better after you having a glance at it.
private void pictureBox1_MouseClick(object sender, MouseEventArgs e)
{
if (radioButton1.Checked==true)
{
if (a > 3 && a < 11)
{
rect.Width = 0;
rect.Height = 0;
pictureBox1.Invalidate();
raghu = img.imageToByteArray(pictureBox1.Image);
int radius = 10; //Set the number of pixel you want to use here
//Calculate the numbers based on radius
int x0 = Math.Max(e.X - (radius / 2), 0),
y0 = Math.Max(e.Y - (radius / 2), 0),
x1 = Math.Min(e.X + (radius / 2), pictureBox1.Width),
y1 = Math.Min(e.Y + (radius / 2), pictureBox1.Height);
Bitmap bm = pictureBox1.Image as Bitmap; //Get the bitmap (assuming it is stored that way)
for (int ix = x0; ix < x1; ix++)
{
for (int iy = y0; iy < y1; iy++)
{
bm.SetPixel(ix, iy, Color.Black); //Change the pixel color, maybe should be relative to bitmap
}
}
pictureBox1.Refresh(); //Force refresh
//calculation part.
float u = l[p + 1] - l[p];
float v = m[p + 1] - m[p];
float w = (e.Y - m[p]) / v;//subtract from latitude
float z = (e.X - l[p]) / u;//add to longitude.
float latmin = h[p] - w;
float longmin = j[p] + z;
A1 = e.X - c[p];
A2 = e.Y - d[p];
B1 = c[p + 1] - c[p];
B2 = d[p + 1] - d[p];
A = Math.Sqrt(Math.Pow(A1, 2) + Math.Pow(A2, 2));
B = Math.Sqrt(Math.Pow(B1, 2) + Math.Pow(B2, 2));
dotproduct = A1 * B1 + A2 * B2;
theta = (180 / Math.PI) * Math.Acos(dotproduct / (A * B));
if (e.X < c[p])
{
theta1 = 360 - theta;
}
else
{
theta1 = theta;
}
textBox2.Text = string.Format("Latitude:{0}°{1}'{2}''\n Longitude:{3}°{4}'{5}'' \n ICAO LOC: {6} {7} \n Distance: {8:0.0} Nm", g[p] + (int)latmin / 60, (int)latmin % 60,(int) (((h[p]-w) % 60 - (int)(latmin % 60)) * 60), i[p] + (int)longmin / 60, (int)longmin % 60, (int)((longmin % 60 - (int)(longmin % 60)) * 60), textBox1.Text, Math.Abs((int)theta1), Math.Sqrt(Math.Pow((A1/u)* 60, 2) + Math.Pow((A2/v) * 60, 2)));
There is a lot of calculation part which is not necessary now.But the data i am going to print in the textBox2(last line of code) is important.all that data that is printed there should be added to an Xml file each time i click the mouse on the picturebox…
so I tried to implement by using xdocument by adding this way..
XDocument xdoc = XDocument.Load(string.Format("{0}.xml", textBox3.Text));
XElement ParentNode= xdoc.Root.Element(string.Format("{0}",radioButton1.Text));
XElement node= new XElement("WayPoints",new XElement("LatitudeDegrees",g[p] + (int)latmin / 60 ,
new XAttribute("Minutes",(int)latmin % 60),
new XAttribute("Seconds",(int)(((h[p] - w) % 60 - (int)(latmin % 60)) * 60)),
new XElement("LongitudeDegrees",i[p] + (int)longmin / 60,
new XAttribute("Minutes",(int)longmin % 60),
new XAttribute("seconds",(int)((longmin % 60 - (int)(longmin % 60)) * 60)),
new XElement ("IcaoLocator",textBox1.Text,
new XAttribute("angle",Math.Abs((int)theta1)),
new XElement("DistanceInNauticalMiles",Math.Sqrt(Math.Pow((A1 / u) * 60, 2) + Math.Pow((A2 / v) * 60, 2))
)))));
ParentNode.Add(node);
xdoc.Save(string.Format("{0}.xml", textBox3.Text));
But the problem is it is saying that the root element is Missing.
Actually the file I am loading in the Xdocument is ,I already created it
using (XmlWriter writer = XmlWriter.Create(string.Format("{0}.xml", textBox3.Text)))
{
}
previously here like this(because I fear that if create it is created in Picturebox_Mouseclick it gets over written)
private void pictureBox1_MouseDoubleClick(object sender, MouseEventArgs e)
{
if (a > 1 && a <= 3)
{
c[f] = e.X;
d[f] = e.Y;
a++;
f++;
}
using (XmlWriter writer = XmlWriter.Create(string.Format("{0}.xml", textBox3.Text)))
{
}
}
Dont bother if you dont understand the calculation ,its specific to my needs I only need to print the data to xml file..please any one kindly help me..
one example of way point is here
<?xml version="1.0" encoding="UTF-8"?>
<WayPoints>
<Latitude>
<Degrees>48</Degrees>
<Minutes>31.7363644</Minutes>
</Latitude>
<Longitude>
<Degrees>11</Degrees>
<Minutes>57.53425</Minutes>
</Longitude>
<IcaoLocator>
<Type>EDML</Type>
<Angle>288</Angle>
<DistanceInPixels>346</DistanceInPixels>
</IcaoLocator>
</WayPoints>
but it contains only one way point ..I ned to add a lot of waypoints to this XML file.
The problem here seems to be that there is in fact (as the exception states) no root element for the xml. This can be fixed fairly simple by changing the layout of the xml to something like this:
Then you should be able to do this:
Not tested (don’t have visual studio on this computer).