Graphics Programs Reference
In-Depth Information
Table 6.1
Basic operators
Add: Length + Width
abs
Absolute Value: abs (-5) will
return 5
+
Pi: pi() * (Radius
∧
2)—the
circumference formula
Subtract: Length -
Connector Protrusion
-
pi
Multiply: Width * Length
sin
Sine: sin (45)
*
Divide: Height/Length
cos
Cosine: cos (45)
/
∧
Exponent: Length
∧
3
tan
Tangent: tan (45)
Logarithm: log (100)
asin
Arcsine: asin (45)
log
Square root: sqrt (49)
acos
Arccosine: acos (45)
sqrt
exp(x)
E raised to an x power:
exp (2)
atan
Arctangent: atan (45)
Less than
<
Greater than
>
Table 6.2
Conditional statements
if if
statement
and
Both statements are true
or
One of the statements is true
not
The statement is false
Sample Conditional Statements
Conditional statements are a very powerful way of controlling the behavior
of your Revit families. For the most part, conditional statements work
exactly the same way they do in Excel or any other program that supports
them. Here are few examples for the most common conditional statements:
Simple
if
Statements
if(Neck Size<10″,16″,18″)if(Neck
Size<250mm, 400mm, 450mm)
Formula That Returns Strings
if(Neck Size>10″,″Neck Size
is too Big “Neck Size is Correct”)if(Neck
