1 
Write a figure on paper and express coordinates of each point of
a figure with the equation using the triangular functions or any
other mathematical functions.
Example 
2 
Make shapes referring Creating Routable and Other 1D Connectors or
any other documents. Write formulas of each point
into the section Figure Coordinates 1 of Shape Sheet. Protect the formulas with
Guard function, so that formulas
may not
break when a control handle is
operated and
a shape is changed. 
3 
A front pipe should come up to the front.
Hide a part of pipe in back, and make a front
pipe legible.
a. 
Copy connector shape created at 2. 
b. 
Change the type of lines. 
c. 
Fill in LineWeight column of the form section of a line as GUARD (Sheet.3
 LineWeight+4 pt.). 
d. 
Fill in LineColor column as GUARD (1) etc. 
Width of a line is made thick
4 points, change
the color of a line into white,
and arrange
in piles back. 
4 
Define control handle to change shape.
a. 
Make 2 and 3 into one group. 
b. 
Arrange a control handle on the group. 
c. 
Enter the formula showing Y coordinates of
a control handle in a control handle section. 
d. 
Protect formula with guard function also
in this case. 

5 
Add connecting points.
a. 
Arrange connecting points to the starting
point, a terminal point, etc. similarly. 
b. 
Enter a formulas in connecting point section. 
c. 
GUARD (Height*0) at the start point. 
d. 
GUARD (Width*1) at the end point. 
