| public Transform ( Vector4 point ) : Vector4 | ||
| point | Vector4 | point to be transformed |
| return | Vector4 | |
/// <summary>
/// draw profile of truss in pictureBox
/// </summary>
/// <param name="graphics">form graphic</param>
/// <param name="pen">pen used to draw line in pictureBox</param>
public void Draw2D(Graphics graphics, Pen pen)
{
//draw truss curves
for (int i = 0; i < m_points.Count - 1; i += 2)
{
Autodesk.Revit.DB.XYZ point1 = m_points[i];
Autodesk.Revit.DB.XYZ point2 = m_points[i + 1];
Vector4 v1 = new Vector4(point1);
Vector4 v2 = new Vector4(point2);
v1 = m_transformMatrix.Transform(v1);
v2 = m_transformMatrix.Transform(v2);
graphics.DrawLine(pen, new Point((int)v1.X, (int)v1.Y),
new Point((int)v2.X, (int)v2.Y));
}
//draw selected beam (line) by red pen
DrawSelectedLineRed(graphics);
//draw top chord and bottom chord
m_topChord.Draw2D(graphics, Pens.Red);
m_bottomChord.Draw2D(graphics, Pens.Black);
}
/// <summary>
/// Get max and min coordinates of all points
/// </summary>
/// <returns>points array stores the bound of all points</returns>
public Autodesk.Revit.DB.XYZ[] GetBoundsPoints()
{
Matrix4 matrix = m_to2DMatrix;
Matrix4 inverseMatrix = matrix.Inverse();
double minX = 0, maxX = 0, minY = 0, maxY = 0;
bool bFirstPoint = true;
//get the max and min point on the face
foreach (Autodesk.Revit.DB.XYZ point in m_points)
{
Vector4 v = new Vector4(point);
Vector4 v1 = inverseMatrix.Transform(v);
if (bFirstPoint)
{
minX = maxX = v1.X;
minY = maxY = v1.Y;
bFirstPoint = false;
}
else
{
if (v1.X < minX)
{
minX = v1.X;
}
else if (v1.X > maxX)
{
maxX = v1.X;
}
if (v1.Y < minY)
{
minY = v1.Y;
}
else if (v1.Y > maxY)
{
maxY = v1.Y;
}
}
}
//return an array with max and min value of all points
Autodesk.Revit.DB.XYZ[] resultPoints = new Autodesk.Revit.DB.XYZ[2] {
new Autodesk.Revit.DB.XYZ(minX, minY, 0), new Autodesk.Revit.DB.XYZ(maxX, maxY, 0)
};
return(resultPoints);
}
