Solids Builder - Point/Bulge

Point/Bulge - creates a point with the BULGE (Convexity) property, which is used to generate the arc segment of polylines:

Convexity is a property used in polylines to define the arc. It is given by:

Onde:
L is the length of the chord
H is the height of the arc sector

When the Sign of the bulge is positive, the arc is drawn to the right of the line (I - F) and when it is negative, to the left. In the image below, the polyline starts at PointB and ends at PTM, with the value ofPointB convexity is 0.5, creating an arc between PointB and PTJ points. The convexity of the PTJ point is equal to ZERO, so a line segment between the PTJ and PTM points is drawn:

It is easy to see that when the convexity is 1, the arc is a semi - circle. For ZERO convexity, the arc would have an infinite radius, so it is a straight line.

The Point/Bulge activity has the following properties:

• Identification
  • Name - point name
    The point name must follow the naming rules
  • Visible Object - indicates whether or not the point should be drawn in the preview
  • X Ordinate - a numeric value or a VB expression for X ordinate, absolute/relative
  • Y Ordinate - a numeric value or a VB expression for Y ordinate, absolute/relative
  • Bulge - a numeric value or a VB expression for Bulge
• X Dimension
  • X Offset - VB expression how far the dimension line from the point's position in the Y direction
  • Show X Dimension - indicates whether to draw a dimension on the X axis between the origin point and the point itself
  • X Template - a text template that provides the dimension
    Use <> for the dimension(Example: Delta X = <>)
• Y Dimension
  • Y Offset - VB expression how far the dimension line from the point's position in the X direction
  • Show T Dimension - indicates whether to draw a dimension on the Y axis between the origin point and the point itself
  • Y Template - a text template that provides the dimension
    Use <> for the dimension(Example: Delta Y = <>)

If the text is too big/small, or the sphere representing the point is too big or small, use the buttons ( A, a, , ) at the top of the screen to change the preview