Feature Parameter Formulas
- Data Types
- Function List: Mathematical Operators
- 3-D Function List
- Steel Engineering Function List
- Explanations on Feature Formulas
- item_id(...)
- profile_angle(..)
- direction_of_profile(..)
- webdirection_inside(..)
Syntax in the documentation
Functions will be described with the following syntax in the documentation:
function_name(Parameter1: Data_type1, Parameter2: Data_type2): Return_data_type
This syntax describes the function called Function_name. The function expects to receive two parameters: Parameter1 with the data type Data_type1 and Parameter2 with the data type Data_type2. The function returns a value of the type Return_data_type.
Example
distance_point_edge(p: Point, e: Edge): Real
The function distance_point_edge expects two parameters: One Point and one Edge, and returns a Real value.
Formal specifications
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= |
ConditionedExpression |
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ConditionedExpression |
= |
Expression1 ["?" Expression1 ":" Expression1 ] If the section exists with a question mark, HiCAD checks whether the expression before the question mark is zero. If it is, the expression after the colon is taken; if it is not, that before the colon is taken. |
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Expression1 |
= |
Expression2 { ("&" | "|") Expression2} "&" is a logical And, "|" a logical Or. |
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Expression2 |
= |
SimpleExpression [ ( "=" | "<" | ">" | "<=" | ">=" | "<>" ) SimpleExpression ] The result of the comparison is 1 for true and 0 for false. |
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SimpleExpression |
= |
[ "+" | "-" | "!" ] Term { ("+" | "-") Term } "!" is the logical Not. If the term after the "!" is zero, the result is 1, if not, 0 |
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Term |
= |
Factor { ( "*" | "/" | "%") Factor } "%" calculates the integral remainder in a division (modulo). To work with decimal numbers, use the modulo function. |
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Factor |
= |
SimpleFactor ["^"SimpleFactor] "^" is the potentiation. |
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SimpleFactor |
= |
Variable | Number | Constant | Function Call | "(" ConditionedExpression ")" Bracketing can be used to nest formulas as required. |
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FunctionCall |
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Function "(" [ ConditionedExpression { "," ConditionedExpression } ] ")" Parameter-free functions are called using empty brackets: f(). |
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Constant |
= |
"pi" |
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Function |
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"sin" | "cos" | "tan" | ... | "aint" | ... For the precise list of functions, see below. |
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Variable |
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Letter {LetterOrDigit | "_"} Variable names must begin with a letter. The maximum length of a variable name determines the valid length of HiCAD macro variables. |
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Number |
= |
(Number1 | Number2) [("e" | "E") ["-" | "+"] Digits] Examples: 1; 1.2; .2; 1e10; 1.23E5. |
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Number1 |
= |
Digits ["." Digits] |
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Number2 |
= |
"." Digits |
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LetterOrDigit |
= |
Letter | Digits |
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Letter |
= |
"a" | ... | "z" | "ä" | "ö" | "ü" | "A" | ... | "Z" | "Ä" | "Ö" | "Ü" |
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Digit |
= |
"0" | ... | "9" |
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Digits |
= |
Digit {Digit} |
| List |
= |
" (" SimpleExpression ( "; " | {"; " SimpleExpression}) ") " |
Examples
-a-a*b-(a-b)1>100?a:b+20
(If 'l' is greater than 100, the value of 'a' is obtained, if not, 'b'+20)
1>100&h<50?a:b+20active_part()
(Functions must have brackets even if they do not have parameters)
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(10;50;100)[type]
Selection from a list - The variable type indicates which value from the list is to be returned: If type=1, 10 is returned; type=2 returns 50 and type=3 returns 100.
