private void AddPlane(MotionEvent e)
{
StructPlane plane;
switch ((int)e.Action)
{
case (int)MotionEventActions.Down:
X1 = e.GetX();
Y1 = e.GetY();
plane = new StructPlane(X1, Y1, X1, Y1);
App.planes.Add(plane);
index = App.planes.IndexOf(plane);
Invalidate();
break;
case (int)MotionEventActions.Move:
App.planes[index].Move2To(e.GetX(), e.GetY());
Invalidate();
break;
case (int)MotionEventActions.Up:
App.planes[index] = CutStructPlane(App.planes[index]);
Invalidate();
//a1.AddPlane(index);
Intent intent = new Intent(a1, typeof(DescriptionActivity));
Bundle b = new Bundle();
//b.PutInt("show", 1);
b.PutInt("position", index);
intent.AddFlags(ActivityFlags.TaskOnHome);
intent.PutExtras(b);
a1.StartActivity(intent);
break;
}
}
public StructPlane CutStructPlane(StructPlane structPlane)
{
Intersection intersection = new Intersection();
TdLine line = intersection.CalLine(structPlane.X1, structPlane.Y1, structPlane.X2, structPlane.Y2);
TdLine line2;
TdPoint point;
bool p1out = false;
bool p2out = false;
//structPlane.visible1 = 1;
//structPlane.visible2 = 1;
if (structPlane.X1 < App.left)
{
line2 = new TdLine
{
C = 0,
B = -1 * App.left
};
point = intersection.CalIPoint(line, line2);
structPlane.X1 = (float)point.X;
structPlane.Y1 = (float)point.Y;
structPlane.visible1 = 0;
p1out = true;
}
if (structPlane.X1 > App.right)
{
line2 = new TdLine
{
C = 0,
B = -1 * App.right
};
point = intersection.CalIPoint(line, line2);
structPlane.X1 = (float)point.X;
structPlane.Y1 = (float)point.Y;
structPlane.visible1 = 0;
p1out = true;
}
if (Math.Abs(structPlane.X1 - App.left) < 0.01f || Math.Abs(structPlane.X1 - App.right) < 0.01f)
{
p1out = true;
}
if (structPlane.Y1 < App.top)
{
line2 = new TdLine
{
C = 1,
B = App.top,
A = 0
};
point = intersection.CalIPoint(line, line2);
structPlane.X1 = (float)point.X;
structPlane.Y1 = (float)point.Y;
structPlane.visible1 = 0;
p1out = true;
}
if (structPlane.Y1 > App.bottom)
{
line2 = new TdLine
{
C = 1,
B = App.bottom,
A = 0
};
point = intersection.CalIPoint(line, line2);
structPlane.X1 = (float)point.X;
structPlane.Y1 = (float)point.Y;
structPlane.visible1 = 0;
p1out = true;
}
if (Math.Abs(structPlane.Y1 - App.top) < 0.01f || Math.Abs(structPlane.Y1 - App.bottom) < 0.01f)
{
p1out = true;
}
if (structPlane.X2 < App.left)
{
line2 = new TdLine
{
C = 0,
B = -1 * App.left
};
point = intersection.CalIPoint(line, line2);
structPlane.X2 = (float)point.X;
structPlane.Y2 = (float)point.Y;
structPlane.visible2 = 0;
p2out = true;
}
if (structPlane.X2 > App.right)
{
line2 = new TdLine
{
C = 0,
B = -1 * App.right
};
point = intersection.CalIPoint(line, line2);
structPlane.X2 = (float)point.X;
structPlane.Y2 = (float)point.Y;
structPlane.visible2 = 0;
p2out = true;
}
if (Math.Abs(structPlane.X2 - App.left) < 0.01f || Math.Abs(structPlane.X2 - App.right) < 0.01f)
{
p2out = true;
}
if (structPlane.Y2 < App.top)
{
line2 = new TdLine
{
C = 1,
B = App.top,
A = 0
};
point = intersection.CalIPoint(line, line2);
structPlane.X2 = (float)point.X;
structPlane.Y2 = (float)point.Y;
structPlane.visible2 = 0;
p2out = true;
}
if (structPlane.Y2 > App.bottom)
{
line2 = new TdLine
{
C = 1,
B = App.bottom,
A = 0
};
point = intersection.CalIPoint(line, line2);
structPlane.X2 = (float)point.X;
structPlane.Y2 = (float)point.Y;
structPlane.visible2 = 0;
p2out = true;
}
if (Math.Abs(structPlane.Y2 - App.top) < 0.01f || Math.Abs(structPlane.Y2 - App.bottom) < 0.01f)
{
p2out = true;
}
if (p1out)
{
structPlane.visible1 = 0;
}
else
{
structPlane.visible1 = 1;
}
if (p2out)
{
structPlane.visible2 = 0;
}
else
{
structPlane.visible2 = 1;
}
return(structPlane);
}
