public static Graphics FromImage(Image image)
{
if (image == null)
{
throw new ArgumentNullException("image");
}
if ((image.PixelFormat & PixelFormat.Indexed) != 0)
{
throw new Exception("Cannot create Graphics from an indexed bitmap.");
}
Bitmap b = image as Bitmap;
if (b == null)
{
throw new Exception("Can not create Graphics contexts from " + image.GetType() + " Images, only Bitmaps are supported");
}
var cgimage = b.NativeCGImage;
if (b.bitmapBlock == IntPtr.Zero)
{
throw new Exception("Missing functionality: currently we can not create graphics contexts from bitmaps loaded from disk, need to do some extra work");
}
// Creates a context using the parameters that were used initially for the bitmap,
// reusing the memory address space on it as well.
return(new Graphics(new CGBitmapContext(b.bitmapBlock, cgimage.Width, cgimage.Height, cgimage.BitsPerComponent, cgimage.BytesPerRow, cgimage.ColorSpace, cgimage.BitmapInfo)));
}
public static string ConvertImageToBase64(System.Drawing.Image img)
{
var type = img.GetType();
var prefix = $"data:image/jpeg;base64,";
using (MemoryStream m = new MemoryStream())
{
img.Save(m, img.RawFormat);
byte[] imageBytes = m.ToArray();
// Convert byte[] to Base64 String
return(prefix + Convert.ToBase64String(imageBytes));
}
}
public static bool SaveImage(string fullpathname, sysImg.Imaging.ImageFormat imageFormat)
{
if (Clipboard.ContainsImage())
{
sysImg.Image image = Clipboard.GetImage();
image.Save(fullpathname, sysImg.Imaging.ImageFormat.Png);
return(true);
}
else if (Clipboard.ContainsData(DataFormats.MetafilePict))
{
sysImg.Image what = (sysImg.Image)Clipboard.GetData(DataFormats.MetafilePict);
Debug.WriteLine(what.GetType());
//image.Save(fullpathname, sysImg.Imaging.ImageFormat.Png);
return(true);
}
else
{
Debug.WriteLine("NO IMAGE");
return(false);
}
}
private void LoadPeople()
{
System.Drawing.Image image = System.Drawing.Image.FromFile(Server.MapPath("/Content/Images/Hexagon.png"));
MemoryStream m = new MemoryStream();
image.Save(m, image.RawFormat);
byte[] imageArray = m.ToArray();
using (SqlConnection con = new SqlConnection(Connection.ConnectionString))
{
con.Open();
SqlCommand command = new SqlCommand("select Users_tbl.User_ID,FirstName,Surname,Gender,Friend_ID,Description,(select Firstname from Users_tbl where User_ID = Friend_ID) as 'FriendName',(select Surname from Users_tbl where User_ID = Friend_ID) as 'FriendSurname' from Users_tbl full outer join Friends_tbl" +
" on Users_tbl.User_ID = Friends_tbl.User_ID full outer join Invitation_tbl on Friends_tbl.Invitation_ID = Invitation_tbl.Invite_ID", con);
command.ExecuteNonQuery();
SqlDataReader reader = command.ExecuteReader();
List <string> friends = new List <string>();
List <string> sentRequests = new List <string>();
List <string> receivedRequests = new List <string>();
List <User> registeredPeople = new List <User>();
while (reader.Read())
{
try //the method will try to read a null Friend_ID and throw an exception
{
if (reader.GetInt32(4) == int.Parse(Session["LoggedInUserID"].ToString())) //if current logged user is a Friend to user in database
{
try
{
if (reader.GetString(5) == "Accepted")//Invite accepted
{
LoadFriends(reader.GetInt32(0).ToString(), reader.GetString(1), reader.GetString(2));
friends.Add(reader.GetInt32(0).ToString());
}//Invite accepted
else if (reader.GetString(5) == "Sent")//Invite sent
{
ulPending.InnerHtml += "<li class='list-group-item list-group-item-action' style='color: #7c2020'>" +
"<a href='#' >" +
"<img ID='NavPhoto" + reader.GetInt32(4) + "' class='border-light rounded rounded-circle text-center' src='data:image/" + image.GetType().ToString() + ";base64," + Convert.ToBase64String(imageArray) + "' style='background-color:white; Width:50px; Height:50px; margin-right:10px' />" +
reader.GetString(1) + " " + reader.GetString(2) +
"<span class='float-right fas fa-check' style='color:green'></span></a>" +
"</li>";
sentRequests.Add(reader.GetInt32(0).ToString());
}//Invite sent
//else if (reader.GetString(5) == "Received")//Invite received
//{
// LoadReceivedInvites(reader.GetInt32(0).ToString(), reader.GetString(1), reader.GetString(2));
//}//Invite received else
}
catch
{
try
{
if (reader.GetInt32(0) != int.Parse(Session["LoggedInUserID"].ToString()) &&
!friends.Contains(reader.GetInt32(0).ToString()) &&
!registeredPeople.Select(p => p.User_ID).Contains(reader.GetInt32(0)) &&
!sentRequests.Contains(reader.GetInt32(0).ToString()) &&
!receivedRequests.Contains(reader.GetInt32(0).ToString()))
{
registeredPeople.Add(new User()
{
User_ID = reader.GetInt32(0), FirstName = reader.GetString(1), Surname = reader.GetString(2)
});
}
}
catch
{
}
}
}
else if (reader.GetInt32(0) == int.Parse(Session["LoggedInUserID"].ToString())) //if current logged user is a Friend to user in database
{
if (reader.GetString(5) == "Sent") //Invite was sent to logged in user i.e Received
{
LoadReceivedInvites(reader.GetInt32(4).ToString(), reader.GetString(6), reader.GetString(7)); //hence we load it in the received list
receivedRequests.Add(reader.GetInt32(4).ToString());
}//Invite accepted
//else if (reader.GetString(5) == "Sent")//Invite sent
//{
// ulPending.InnerHtml += "<li class='list-group-item list-group-item-action' style='color: #7c2020'>" +
// "<a href='#' >" +
// "<img ID='NavPhoto" + reader.GetInt32(4) + "' class='border-light rounded rounded-circle text-center' src='data:image/" + image.GetType().ToString() + ";base64," + Convert.ToBase64String(imageArray) + "' style='background-color:white; Width:50px; Height:50px; margin-right:10px' />" +
// reader.GetString(1) + " " + reader.GetString(2) +
// "<span class='float-right fas fa-check' style='color:yellow'></span></a>" +
// "</li>";
//}//Invite sent
else if (reader.GetString(5) == "Accepted")//Invite received
{
LoadFriends(reader.GetInt32(4).ToString(), reader.GetString(6), reader.GetString(7));
friends.Add(reader.GetInt32(4).ToString());
}//Invite received else
}
else
{
try
{
if (reader.GetInt32(0) != int.Parse(Session["LoggedInUserID"].ToString()) &&
!friends.Contains(reader.GetInt32(0).ToString()) &&
!registeredPeople.Select(p => p.User_ID).Contains(reader.GetInt32(0)) &&
!sentRequests.Contains(reader.GetInt32(0).ToString()) &&
!receivedRequests.Contains(reader.GetInt32(0).ToString()))
{
registeredPeople.Add(new User()
{
User_ID = reader.GetInt32(0), FirstName = reader.GetString(1), Surname = reader.GetString(2)
});
}
}
catch
{
}
}
}//Null Friend_ID try
catch //skip
{
try
{
if (reader.GetInt32(0) != int.Parse(Session["LoggedInUserID"].ToString()) &&
!friends.Contains(reader.GetInt32(0).ToString()) &&
!registeredPeople.Select(p => p.User_ID).Contains(reader.GetInt32(0)) &&
!sentRequests.Contains(reader.GetInt32(0).ToString()) &&
!receivedRequests.Contains(reader.GetInt32(0).ToString()))
{
registeredPeople.Add(new User()
{
User_ID = reader.GetInt32(0), FirstName = reader.GetString(1), Surname = reader.GetString(2)
});
}
}
catch//skip
{
}
}
}//while
reader.Close();
con.Close();
foreach (string userid in registeredPeople.Select(p => p.User_ID.ToString()).Except(friends).Except(sentRequests).Except(receivedRequests).ToList())
{
User user = registeredPeople.SingleOrDefault(u => u.User_ID == int.Parse(userid));
LoadRegisteredPeople(user.User_ID.ToString(), user.FirstName, user.Surname);
}
}
}
public void ProcessFile(string filename, string outputFilename)
{
try
{
System.Drawing.Image image = System.Drawing.Image.FromFile(filename);
Console.WriteLine("Size {0} {1} {2}", image.Width, image.Height, image.GetType().ToString());
float desiredWidthMM = options.DesiredWidth;
float stepSize = options.StepSize;
int desiredPixelWidth = (int)(desiredWidthMM / stepSize);
int desiredPixelHeight = image.Height * desiredPixelWidth / image.Width;
float minThick = options.MinThickness;
float maxThick = options.MaxThickness;
Bitmap bm = new Bitmap(desiredPixelWidth, desiredPixelHeight);
using (Graphics g = Graphics.FromImage(bm))
{
g.DrawImage(image, 0, 0, desiredPixelWidth, desiredPixelHeight);
}
var gb = new GaussianBlur(bm);
gb.Process(10);
var grayScale = new float[bm.Width, bm.Height];
float maxGray = 0.0f;
float minGray = 10.0f;
float avgGray = 0.0f;
for (int i = 0; i < bm.Width; i++)
{
for (int j = 0; j < bm.Height; j++)
{
Color oc = bm.GetPixel(i, j);
float grayScaleVal = (float)((oc.R * 0.3) + (oc.G * 0.59) + (oc.B * 0.11)) / 256.0f;
grayScale[options.MirrorX ? bm.Width - 1 - i : i, j] = grayScaleVal;
if (grayScaleVal < minGray)
{
minGray = grayScaleVal;
}
if (grayScaleVal > maxGray)
{
maxGray = grayScaleVal;
}
avgGray += grayScaleVal;
}
}
avgGray /= bm.Width * bm.Height;
Console.WriteLine("Min gray {0}, Max gray {1}, Average {2}", minGray, maxGray, avgGray);
heights = new float[bm.Width, bm.Height];
for (int i = 0; i < bm.Width; i++)
{
for (int j = 0; j < bm.Height; j++)
{
float g = (grayScale[i, j] - minGray) / (maxGray - minGray);
if (options.Negative)
{
g = 1.0f - g;
}
float height = g * (maxThick - minThick);
//heights[bm.Width - 1 - i, x] = height < minThick ? minThick : height;
heights[bm.Width - 1 - i, j] = maxThick - height;
}
}
if (options.Binary)
{
bw = new BinaryWriter(new FileStream(outputFilename != null ? outputFilename : (Path.GetFileNameWithoutExtension(filename) + ".stl"), FileMode.Create, FileAccess.ReadWrite));
}
else
{
tw = new StreamWriter(outputFilename != null ? outputFilename : (Path.GetFileNameWithoutExtension(filename) + ".stl"));
}
nTriangles = 0;
width = (bm.Width - 1) * stepSize;
height = (bm.Height - 1) * stepSize;
OutputHeader();
OutputFront(stepSize, bm);
OutputFanBack(stepSize, bm);
if (options.AddBorder)
{
OutputTopBorder(stepSize, bm);
OutputBottomBorder(stepSize, bm);
OutputLeftBorder(stepSize, bm);
OutputRightBorder(stepSize, bm);
}
else
{
OutputTop(stepSize, bm);
OutputBottom(stepSize, bm);
OutputLeft(stepSize, bm);
OutputRight(stepSize, bm);
}
OutputTrailer();
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
