HALCON Extension Package Programmer's Manual

2.3. DESCRIBING THE PARAMETERS 332.3.14 value numberÚÐÙÒÙÑÖboolean expressionThis slot contains a boolean expression that determines how the number of passed or returnedvalues of a parameter is absolutely or relatively connected to the number of values in otherparameters or some absolute values. The operators and functions listed in table 2.1 may appearwithin the expression.Group Symbol meaningUnary Operators logical NOT¹ negationBinary Operators ²² logical AND logical OR equal not equal greater greater or equal less less or equal· sum¹ difference multiplication» division (DIV)± rest of division (MOD)Functions Ó true, if oddÚÒ true, if evenÐ binary logarithmÐÒØ lengthÒÙÑÖ number of values (only for ××ÖØÓÒ)ÛØ (image-)widthØ (image-)heightExamples:Table 2.1: Operators and functions used for the slots ÚÐÙ ÒÙÑÖ and ××ÖØÓÒ.ÈÖѽ ÈÖѾ ²² ÈÖѾ ¼This means that the same number of values and at least one value must be passed withparameter 1 and parameter 2.ÈÖѾ ¿This means that exactly three values must be passed with parameter 2.For output parameters this can be seen as an assertion. This may also refer to input parameters,e.g.: ÊÓÒÇÙØ ÊÓÒÁÒ in connection with the HALCON operator select shapeexpresses the fact that the number of output regions does not exceed the number of input regions.HALCON 6.0