private void toolStripButton13_Click(object sender, EventArgs e)
{
UnCheckAllStylePainting();
CheckStylePainting(sender);
stylePainting = StylePainting.Symmetric;
pictureBox1.Invalidate();
}
public Form1()
{
stripChoice = ToolStripChoice.DrawFigure;
stylePainting = StylePainting.Brezenham;
collection = new CollectionFigure();
isMoving = false;
InitializeComponent();
}
public static void BrezenhamAlgorithm(this Graphics g, Models.Vertice start, Models.Vertice end, Pen pen, Brush brush, StylePainting stylePainting)
{
if (stylePainting == StylePainting.DrawLine)
{
g.DrawLine(pen, start.x, start.y, end.x, end.y);
}
else if (stylePainting == StylePainting.Brezenham)
{
double a = (double)(end.y - start.y) / (end.x - start.x);
if (a > 1)
{
g.MidpointLineN_NE(brush, start.x, start.y, end.x, end.y);
g.MidpointLineN_NE(brush, end.x, end.y, start.x, start.y);
}
else if (a <= 1 && a > 0)
{
g.MidpointLineE_NE(brush, start.x, start.y, end.x, end.y);
g.MidpointLineE_NE(brush, end.x, end.y, start.x, start.y);
}
else if (a <= 0 && a >= -1)
{
g.MidpointLineE_SE(brush, start.x, start.y, end.x, end.y);
g.MidpointLineE_SE(brush, end.x, end.y, start.x, start.y);
}
else
{
g.MidpointLineS_SE(brush, start.x, start.y, end.x, end.y);
g.MidpointLineS_SE(brush, end.x, end.y, start.x, start.y);
}
}
else if (stylePainting == StylePainting.Symmetric)
{
double a = (double)(end.y - start.y) / (end.x - start.x);
if (a > 1)
{
g.SymmetricLineN_NE(brush, start.x, start.y, end.x, end.y);
g.SymmetricLineN_NE(brush, end.x, end.y, start.x, start.y);
}
else if (a <= 1 && a > 0)
{
g.SymmetricLineE_NE(brush, start.x, start.y, end.x, end.y);
g.SymmetricLineE_NE(brush, end.x, end.y, start.x, start.y);
}
else if (a <= 0 && a >= -1)
{
g.SymmetricLineE_SE(brush, start.x, start.y, end.x, end.y);
g.SymmetricLineE_SE(brush, end.x, end.y, start.x, start.y);
}
else
{
g.SymmetricLineS_SE(brush, start.x, start.y, end.x, end.y);
g.SymmetricLineS_SE(brush, end.x, end.y, start.x, start.y);
}
}
else if (stylePainting == StylePainting.WU)
{
//Rozwiazanie zaczerpniete z https://rosettacode.org/wiki/Xiaolin_Wu%27s_line_algorithm?fbclid=IwAR3NZV-yyZdm4uB8sM76pNIRu-bZZbcsdD7TMNKLknokcgbq8pjbtyu3OWA#C.23
WU wu = new WU(start.x, start.y, end.x, end.y, Color.Black, g);
g = wu.Draw();
}
}
