![]() Remainder after dividing x by y, sign of result is that of the dividend. Rounding, truncation and remainder functions FunctionĬeiling function, smallest integer value greater than or equal to xįloor function, largest integer value less than or equal to x cath(5 3) = 4Įxponential and logarithmic functions Function Given hypotenuse, and one side, returns other side of triangle, e.g. If an expression is without units and needs to be converted to degrees or radians for compatibility, multiply by 1 deg, 1 ° or 1 rad as appropriate, e.g. Expressions in degrees can use either deg or °, e.g. For radian measure, add rad following the first value in an expression. Trigonometric functions use degree as their default unit. The following mathematical functions are supported: Top Supported functions General mathematical functions Note: The index starts with 0, therefore Constraint17 has to be referenced as Constraints.įor more information about referencing objects, see Reference to CAD_data. If you are in the same sketch you may omit its name and just use Constraints. If you want for example to reference a constraint in a sketch, use >.Constraints. To reference list objects, use >.list or object_name.list. For example, you may use Cylinder._self or >._self. To reference the object itself use the _self pseudo property. For example, to reference a Cylinder's height, you may use Cylinder.Height or >.Height. You can reference any property of an object. In the case of a Data Label, it must be enclosed in double > symbols, such as >. ![]() You can reference an object by its Data Name or by its Data Label. ![]() A cell may also be referenced by using the cell's alias instead, for example Spreadsheet.MyPartWidth. A cell reference consists of the cell's uppercase row letter followed by its column number, for example A1. When a semicolon is used, no trailing space is necessary.Īrguments may include references to cells in a spreadsheet. In the latter case, the comma is converted to a semicolon after entry. Multiple arguments to a function may be separated by either a semicolon or a comma followed by a space. Sqrt(2)mm is not valid because the function call is not a number. Here are some examples:ġ/2mm is not interpreted as half a millimeter but as 1/(2mm), resulting in: 0.5 mm^-1. Some unit related errors can seem unintuitive, with expressions either being rejected or producing results that do not match the units of the property being set. ![]() Thus Pad001.Length + 1 is invalid since it adds a pure number to a property with length units, it requires Pad001.Length + 1mm. This also applies to references to object properties that have units, such as Length properties. For example, 2mm + 4mm is a valid expression, while 2mm + 4 is not. Operators and functions are unit-aware, and require valid combinations of units, if supplied. When the decimal marker is used, it must be followed by at least one digit. Numbers may use either a comma, or a decimal point. Numbers in an expression may have an optional unit attached to them. In addition, the expression may reference object properties, and also use conditionals. ![]() Clicking on the icon or typing the equal sign = brings up the expression editor for that particular property.Ī FreeCAD expression is a mathematical expression using the standard mathematical operators, functions and predefined constants as described below. In the GUI, spin boxes or input fields that are bound to properties contain a blue icon. It is possible to define properties using mathematical expressions. ![]()
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