float m_scale = 1; //scale of shaft opening
#endregion Fields
#region Constructors
/// <summary>
/// constructor
/// </summary>
/// <param name="commandData">object which contains reference of Revit Application</param>
public ProfileNull(ExternalCommandData commandData)
: base(commandData)
{
GetLevels();
m_to2DMatrix = new Matrix4();
m_moveToCenterMatrix = new Matrix4();
}
/// <summary>
/// Get a matrix which can transform points to 2D
/// </summary>
/// <returns>matrix which can transform points to 2D</returns>
public override Matrix4 GetTo2DMatrix()
{
View viewLevel2 = null;
// get view which named "Level 2".
// Skip view templates because they're behind-the-scene and invisible in project browser; also invalid for API.
IEnumerable<View> views = from elem in
(new FilteredElementCollector(m_commandData.Application.ActiveUIDocument.Document)).OfClass(typeof(ViewPlan)).ToElements()
let view=elem as View
where view!=null && !view.IsTemplate && "Level 2" == view.ViewName
select view;
if (views.Count()>0)
{
viewLevel2 = views.First();
}
Vector4 xAxis = new Vector4(viewLevel2.RightDirection);
//Because Y axis in windows UI is downward, so we should Multiply(-1) here
Vector4 yAxis = new Vector4(viewLevel2.UpDirection.Multiply(-1));
Vector4 zAxis = new Vector4(viewLevel2.ViewDirection);
Matrix4 result = new Matrix4(xAxis, yAxis, zAxis);
return result;
}
/// <summary>
/// draw profile of wall or floor in 2D
/// </summary>
/// <param name="graphics">form graphic</param>
/// <param name="pen">pen used to draw line in pictureBox</param>
/// <param name="matrix4">Matrix used to transform 3d to 2d
/// and make picture in right scale </param>
public virtual void Draw2D(Graphics graphics, Pen pen, Matrix4 matrix4)
{
//move the gdi origin to the picture center
graphics.Transform = new System.Drawing.Drawing2D.Matrix(
1, 0, 0, 1, m_sizePictureBox.Width / 2, m_sizePictureBox.Height / 2);
//draw profile
for (int i = 0; i < m_points.Count; i++)
{
List<XYZ> points = m_points[i];
for (int j = 0; j < points.Count - 1; j++)
{
Autodesk.Revit.DB.XYZ point1 = points[j];
Autodesk.Revit.DB.XYZ point2 = points[j + 1];
Vector4 v1 = new Vector4(point1);
Vector4 v2 = new Vector4(point2);
v1 = matrix4.Transform(v1);
v2 = matrix4.Transform(v2);
graphics.DrawLine(pen, new Point((int)v1.X, (int)v1.Y),
new Point((int)v2.X, (int)v2.Y));
}
}
}
/// <summary>
/// calculate the matrix use to scale
/// </summary>
/// <param name="size">pictureBox size</param>
/// <returns>maxtrix is use to scale the profile</returns>
public virtual Matrix4 ComputeScaleMatrix(Size size)
{
m_sizePictureBox = size;
PointF[] boundPoints = GetFaceBounds();
float width = ((float)size.Width) / (boundPoints[1].X - boundPoints[0].X);
float hight = ((float)size.Height) / (boundPoints[1].Y - boundPoints[0].Y);
float factor = width <= hight ? width : hight;
//leave some margin, so multiply factor by 0.85
m_scaleMatrix = new Matrix4((float)(factor * 0.85));
return m_scaleMatrix;
}
/// <summary>
/// calculate the matrix used to transform 3D to 2D
/// </summary>
/// <returns>maxtrix is use to transform 3d points to 2d</returns>
public virtual Matrix4 Compute3DTo2DMatrix()
{
Matrix4 result = Matrix4.Multiply(
m_to2DMatrix.Inverse(), m_moveToCenterMatrix.Inverse());
m_transformMatrix = Matrix4.Multiply(result, m_scaleMatrix);
return m_transformMatrix;
}
/// <summary>
/// multiply matrix left and right
/// </summary>
/// <param name="left">left matrix</param>
/// <param name="right">right matrix</param>
/// <returns></returns>
public static Matrix4 Multiply(Matrix4 left, Matrix4 right)
{
Matrix4 result = new Matrix4();
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
result[i, j] = left[i, 0] * right[0, j] + left[i, 1] * right[1, j]
+ left[i, 2] * right[2, j] + left[i, 3] * right[3, j];
}
}
return result;
}
/// <summary>
/// calculate the matrix used to transform 3D to 2D.
/// because profile of shaft opening in Revit is 2d too,
/// so we need do nothing but new a matrix
/// </summary>
/// <returns>maxtrix is use to transform 3d points to 2d</returns>
public override Matrix4 Compute3DTo2DMatrix()
{
m_transformMatrix = new Matrix4();
return m_transformMatrix;
}
/// <summary>
/// draw the coordinate system
/// </summary>
/// <param name="graphics">form graphic</param>
/// <param name="pen">pen used to draw line in pictureBox</param>
/// <param name="matrix4">Matrix used to transform 3d to 2d
/// and make picture in right scale </param>
public override void Draw2D(Graphics graphics, Pen pen, Matrix4 matrix4)
{
graphics.Transform = new System.Drawing.Drawing2D.Matrix(
1, 0, 0, 1, 0, 0);
//draw X axis
graphics.DrawLine(pen, new Point(20, 280), new Point(400, 280));
graphics.DrawPie(pen, 400, 265, 30, 30, 165, 30);
//draw Y axis
graphics.DrawLine(pen, new Point(20, 280), new Point(20, 50));
graphics.DrawPie(pen, 5, 20, 30, 30, 75, 30);
//draw scale
graphics.DrawLine(pen, new Point(120, 275), new Point(120, 285));
graphics.DrawLine(pen, new Point(220, 275), new Point(220, 285));
graphics.DrawLine(pen, new Point(320, 275), new Point(320, 285));
graphics.DrawLine(pen, new Point(15, 80), new Point(25, 80));
graphics.DrawLine(pen, new Point(15, 180), new Point(25, 180));
//dimension
Font font = new Font("Verdana", 10, FontStyle.Regular);
graphics.DrawString("100'", font, Brushes.Blue, new PointF(122, 266));
graphics.DrawString("200'", font, Brushes.Blue, new PointF(222, 266));
graphics.DrawString("300'", font, Brushes.Blue, new PointF(322, 266));
graphics.DrawString("100'", font, Brushes.Blue, new PointF(22, 181));
graphics.DrawString("200'", font, Brushes.Blue, new PointF(22, 81));
graphics.DrawString("(0,0)", font, Brushes.Blue, new PointF(10, 280));
}
/// <summary>
/// calculate the matrix for scale
/// </summary>
/// <param name="size">pictureBox size</param>
/// <returns>maxtrix to scale the opening curve</returns>
public override Matrix4 ComputeScaleMatrix(Size size)
{
m_scaleMatrix = new Matrix4(m_scale);
return m_scaleMatrix;
}
/// <summary>
/// calculate the matrix used to transform 3D to 2D.
/// because profile of shaft opening in Revit is 2d too,
/// so we need do nothing but new a matrix
/// </summary>
/// <returns>maxtrix is use to transform 3d points to 2d</returns>
public override Matrix4 Compute3DTo2DMatrix()
{
m_transformMatrix = new Matrix4();
return(m_transformMatrix);
}
/// <summary>
/// calculate the matrix for scale
/// </summary>
/// <param name="size">pictureBox size</param>
/// <returns>maxtrix to scale the opening curve</returns>
public override Matrix4 ComputeScaleMatrix(Size size)
{
m_scaleMatrix = new Matrix4(m_scale);
return(m_scaleMatrix);
}
/// <summary>
/// Get a matrix which can transform points to 2D
/// </summary>
/// <returns>matrix which can transform points to 2D</returns>
public override Matrix4 GetTo2DMatrix()
{
//get transform used to transform points to plane whose normal is Zaxis of beam
Vector4 xAxis = new Vector4(m_data.HandOrientation);
xAxis.Normalize();
//Because Y axis in windows UI is downward, so we should Multiply(-1) here
Vector4 yAxis = new Vector4(m_data.FacingOrientation.Multiply(-1));
yAxis.Normalize();
Vector4 zAxis = yAxis.CrossProduct(xAxis);
zAxis.Normalize();
Vector4 vOrigin = new Vector4(m_points[0][0]);
Matrix4 result = new Matrix4(xAxis, yAxis, zAxis, vOrigin);
m_MatrixZaxis = result;
//get transform used to transform points to plane whose normal is Yaxis of beam
xAxis = new Vector4(m_data.HandOrientation);
xAxis.Normalize();
zAxis = new Vector4(m_data.FacingOrientation);
zAxis.Normalize();
yAxis = (xAxis.CrossProduct(zAxis)) * (-1);
yAxis.Normalize();
result = new Matrix4(xAxis, yAxis, zAxis, vOrigin);
m_MatrixYaxis = result;
return m_MatrixZaxis;
}