Maxluli/Paint2
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This commit is contained in:
Rohmer Maxime
2022-06-01 14:18:18 +02:00
parent 2a4d2ed9ed
commit 17c4c22781
1 changed files with 19 additions and 39 deletions
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58
Paint_2/BezierPencil.cs
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@@ -40,6 +40,9 @@ namespace Paint_2
Widths = new List<int>();
WidthsRedo = new List<int>();
Name = name;
MessageBox.Show("Lerp test\nTest with start 20;20 and end 40;40 with 0.5f\n result : "+Lerp(new Point(20,20),new Point(40,40),0.5f));
MessageBox.Show("Lerp test\nTest with start 40;40 and end 20;20 with 0.5f\n result : " + Lerp(new Point(40, 40), new Point(20, 20), 0.5f));
}
public void Add(Point point)
{
@@ -83,15 +86,14 @@ namespace Paint_2
}
return result;
}
private Point LerpY(Point start, Point end, int x)
private Point Lerp(Point start, Point end, float t)
{
int newY = start.Y + (int)((float)(x - start.X) * (float)(((float)end.Y - (float)start.Y) / ((float)end.X - (float)start.X)));
return new Point(x, newY);
}
private Point LerpX(Point start, Point end, int y)
{
int newX = start.X + (int)((float)(y - start.Y) * (((float)end.Y - (float)start.Y) / ((float)end.X - (float)start.X)));
return new Point(newX, y);
//float xRatio = Math.Min((float)start.X,end.X) / Math.Max((float)start.X,end.X);
//float yRatio = Math.Min((float)start.Y, end.Y) / Math.Max((float)start.Y, end.Y);
float xDiff = Math.Abs(start.X - end.X);
float yDiff = Math.Abs(start.Y -end.Y);
Point result = new Point(Math.Min(start.X,end.X) + (int)(t *xDiff),Math.Min(start.Y,end.Y) + (int)(t * yDiff));
return result;
}
public void Paint(Bitmap canvas)
{
@@ -117,7 +119,7 @@ namespace Paint_2
if (i % 4 == 0)
{
//Drawing the first level of curve
//Drawing the given sharp outline
Point p1 = points[i - 4];
Point p2 = points[i - 3];
Point p3 = points[i - 2];
@@ -127,42 +129,20 @@ namespace Paint_2
gr.DrawLine(new Pen(Colors[i - 3], Widths[i - 3]), p2, p3);
gr.DrawLine(new Pen(Colors[i - 2], Widths[i - 2]), p3, p4);
//Drawing the second level of curve
float t = 0.5f;
// Calculate the lowest x change
int range = Math.Min(Math.Abs(p4.X - p3.X), Math.Min(Math.Abs(p2.X - p1.X), Math.Abs(p3.X - p2.X)));
float firstOffset = Math.Abs(p2.X - p1.X) / range;
float secondOffset = Math.Abs(p3.X - p2.X) / range;
float thirdOffset = Math.Abs(p4.X - p3.X) / range;
//Drawing
Point p1_2 = Lerp(p1, p2, t);
Point p2_2 = Lerp(p2, p3, t);
Point p3_2 = Lerp(p3, p4, t);
for (int i = 0;i < range;i++)
{
gr.FillEllipse(new SolidBrush(Color.BlueViolet),new Rectangle(p1_2.X,p1_2.Y,10,10));
}
gr.DrawLine(new Pen(Color.Pink,10),p1_2,p2_2);
gr.DrawLine(new Pen(Color.Red, 10), p2_2,p3_2);
Point p1_2 = LerpY(p1, p2, p1.X +(int)(range / 2.0 * firstOffset));
Point p2_2 = LerpY(p2, p3, p2.X +(int)(range / 2.0 * secondOffset));
Point p3_2 = LerpY(p3, p4, p3.X +(int)(range / 2.0 * thirdOffset));
gr.DrawLine(new Pen(Colors[i - 1], Widths[i - 1]), p1_2, p2_2);
gr.DrawLine(new Pen(Colors[i - 1], Widths[i - 1]), p2_2, p3_2);
//Drawing the thirs level of curve
range = Math.Min(Math.Abs(p2_2.X - p1_2.X), Math.Abs(p3_2.X - p2_2.X));
firstOffset = Math.Abs(p2_2.X - p1_2.X) / range;
secondOffset = Math.Abs(p3_2.X - p2_2.X) / range;
Point p1_3 = LerpY(p1_2, p2_2, p1_2.X + (int)(range / 2.0 * firstOffset));
Point p2_3 = LerpY(p2_2, p3_2, p2_2.X + (int)(range / 2.0 * secondOffset));
gr.DrawLine(new Pen(Color.Pink, 5), p1_3, p2_3);
//Drawing the bezier point
range = Math.Abs(p2_3.X - p1_3.X);
firstOffset = Math.Abs(p2_3.X - p1_3.X) / range;
Point p1_4 = LerpY(p1_3, p2_3, p1_3.X + (int)(range / 2.0 * firstOffset));
gr.FillEllipse(new SolidBrush(Color.AliceBlue), new Rectangle(new Point(p1_4.X - pointSize.Width / 2, p1_4.Y - pointSize.Height / 2), pointSize));
}
}
}