private void SelectVertexByRect()
{
Vector2d minV = Vector2d.Min(mouseDownPosition, currMousePosition);
Vector2d size = Vector2d.Max(mouseDownPosition, currMousePosition) - minV;
Rectangle rect = new Rectangle((int)minV.x, (int)minV.y, (int)size.x, (int)size.y);
Rectangle viewport = new Rectangle(0, 0, this.Width, this.Height);
OpenGLProjector projector = new OpenGLProjector();
Mesh m = currMeshRecord.Mesh;
bool laser = Program.toolsProperty.Laser;
double eps = Program.toolsProperty.DepthTolerance;
if ((Control.ModifierKeys & Keys.Shift) == Keys.Shift)
{
for (int i = 0, j = 0; i < m.VertexCount; i++, j += 3)
{
Vector3d v = projector.Project(m.VertexPos, j);
if (viewport.Contains((int)v.x, (int)v.y))
{
bool flag = rect.Contains((int)v.x, (int)v.y);
flag &= (laser || projector.GetDepthValue((int)v.x, (int)v.y) - v.z >= eps);
if (flag)
{
m.Flag[i] = (byte)1;
}
}
}
}
else if ((Control.ModifierKeys & Keys.Control) == Keys.Control)
{
for (int i = 0, j = 0; i < m.VertexCount; i++, j += 3)
{
Vector3d v = projector.Project(m.VertexPos, j);
if (viewport.Contains((int)v.x, (int)v.y))
{
bool flag = rect.Contains((int)v.x, (int)v.y);
flag &= (laser || projector.GetDepthValue((int)v.x, (int)v.y) - v.z >= eps);
if (flag)
{
m.Flag[i] = (byte)0;
}
}
}
}
else
{
for (int i = 0, j = 0; i < m.VertexCount; i++, j += 3)
{
Vector3d v = projector.Project(m.VertexPos, j);
if (viewport.Contains((int)v.x, (int)v.y))
{
bool flag = rect.Contains((int)v.x, (int)v.y);
flag &= (laser || projector.GetDepthValue((int)v.x, (int)v.y) - v.z >= eps);
m.Flag[i] = (byte)((flag) ? 1 : 0);
}
}
}
}
private void SelectVertexByPoint()
{
Rectangle viewport = new Rectangle(0, 0, this.Width, this.Height);
OpenGLProjector projector = new OpenGLProjector();
Mesh m = currMeshRecord.Mesh;
bool laser = Program.toolsProperty.Laser;
double eps = Program.toolsProperty.DepthTolerance;
double minDis = double.MaxValue;
int minIndex = -1;
for (int i = 0, j = 0; i < m.VertexCount; i++, j += 3)
{
Vector3d v = projector.Project(m.VertexPos, j);
Vector2d u = new Vector2d(v.x, v.y);
if (!viewport.Contains((int)v.x, (int)v.y))
{
continue;
}
if (!laser && projector.GetDepthValue((int)v.x, (int)v.y) - v.z < eps)
{
continue;
}
double dis = (u - currMousePosition).Length();
if (dis < minDis)
{
minIndex = i;
minDis = dis;
}
}
if (minIndex == -1)
{
return;
}
//FormMain.CurrForm.OutputText("selected vertex: " + minIndex.ToString());
if ((Control.ModifierKeys & Keys.Shift) == Keys.Shift)
{
m.Flag[minIndex] = (byte)1;
}
else if ((Control.ModifierKeys & Keys.Control) == Keys.Control)
{
m.Flag[minIndex] = (byte)0;
}
else
{
for (int i = 0; i < m.VertexCount; i++)
{
m.Flag[i] = (byte)0;
}
m.Flag[minIndex] = (byte)1;
}
}
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
this.currMousePosition = new Vector2d(e.X, this.Height - e.Y);
this.mouseDownPosition = currMousePosition;
this.isMouseDown = true;
switch (Program.currentMode)
{
case Program.EnumOperationMode.Viewing:
switch (e.Button)
{
case MouseButtons.Left: ball.Click(currMousePosition, Trackball.MotionType.Rotation); break;
case MouseButtons.Middle: ball.Click(currMousePosition / this.scaleRatio, Trackball.MotionType.Pan); break;
case MouseButtons.Right: ball.Click(currMousePosition, Trackball.MotionType.Scale); break;
}
break;
case Program.EnumOperationMode.Selection:
break;
case Program.EnumOperationMode.Moving:
if (this.StartMoving() == true)
{
Vector2d p = mouseDownPosition - new Vector2d(projectedCenter.x, projectedCenter.y);
p.x += 100;
p.y += 100;
switch (e.Button)
{
case MouseButtons.Right: movingBall.Click(p, Trackball.MotionType.Rotation); break;
case MouseButtons.Left: movingBall.Click(p / this.scaleRatio, Trackball.MotionType.Pan); break;
case MouseButtons.Middle: movingBall.Click(p, Trackball.MotionType.Scale); break;
}
if (currMeshRecord.Deformer != null)
{
currMeshRecord.Deformer.MouseDown();
}
this.Refresh();
}
break;
case Program.EnumOperationMode.PickSkeNode:
if (skeHandleIndex != -1)
{
this.GrabContext();
OpenGLProjector projector = new OpenGLProjector();
Deformer deformer = currMeshRecord.Deformer;
this.skeHandleCenter = new Vector4d(skeHandlepos, 0);
this.projectedCenter = projector.Project(skeHandlepos);
Vector2d p = mouseDownPosition - new Vector2d(projectedCenter.x, projectedCenter.y);
p.x += 100;
p.y += 100;
switch (e.Button)
{
case MouseButtons.Left: movingBall.Click(p / this.scaleRatio, Trackball.MotionType.Pan); break;
}
if (currMeshRecord.Deformer != null)
{
currMeshRecord.Deformer.MouseDown();
}
this.Refresh();
}
break;
}
}
private bool StartMoving()
{
// find closest selected vertex
this.GrabContext();
OpenGLProjector projector = new OpenGLProjector();
Mesh m = currMeshRecord.Mesh;
Deformer deformer = currMeshRecord.Deformer;
Rectangle viewport = new Rectangle(0, 0, this.Width, this.Height);
double eps = Program.toolsProperty.DepthTolerance;
double minDis = double.MaxValue;
int minIndex = -1;
for (int i = 0, j = 0; i < m.VertexCount; i++, j += 3)
{
if (m.Flag[i] == 0)
{
continue;
}
Vector3d v3d = projector.Project(m.VertexPos, j);
Vector2d v = new Vector2d(v3d.x, v3d.y);
if (viewport.Contains((int)v.x, (int)v.y) == false)
{
continue;
}
if (projector.GetDepthValue((int)v.x, (int)v.y) - v3d.z < eps)
{
continue;
}
double dis = (v - mouseDownPosition).Length();
if (dis < minDis)
{
minDis = dis;
minIndex = i;
}
}
if (minIndex == -1)
{
this.handleFlag = -1;
this.handleIndex.Clear();
this.oldHandlePos.Clear();
return(false);
}
// find boundary box
int flag = m.Flag[minIndex];
this.handleFlag = flag;
this.handleIndex.Clear();
this.oldHandlePos.Clear();
Vector3d c = new Vector3d(0, 0, 0);
int count = 0;
{
for (int i = 0; i < m.VertexCount; i++)
{
if (m.Flag[i] == flag)
{
Vector3d p = new Vector3d(m.VertexPos, i * 3);
c += p;
this.handleIndex.Add(i);
this.oldHandlePos.Add(p);
count++;
}
}
}
c /= (double)count;
this.handleCenter = new Vector4d(c, 0);
this.projectedCenter = projector.Project(handleCenter.x, handleCenter.y, handleCenter.z);
return(true);
}