HALCON Extension Package Programmer's Manual

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32 CHAPTER 2. OPERATOR DESCRIPTION (’DEF’-FILES)2.3.9 default valueÙÐØÚÐÙDefault ValueThis slot defines the default value e.g., used by HDevelop to initialize the paramater in the operatorwindow. Suggesting default values can help the programmer to find suitable values of parameters.Generally, strings are unquoted in the description (not ³ØËØÖÒ³, butØËØÖÒ);exceptions: empty string (³³) and strings with special characters (³Ø ×ØÖÒ³).2.3.10 valuesÚÐÙ×List of some typical valuesThis slot contains a collection of possible values. This list does not have to be complete. It justsuggests some typical values the user might want to try.2.3.11 value listÚÐÙÐ×ØList of all valuesThis slot contains a complete list of all allowed values. So, if a parameter can hold only adiscrete number of specific values, ÚÐÙ Ð×Ø should be specified, otherwise ÚÐÙ× mightbe used to provide some typical values.2.3.12 value min, value maxÚÐÙÑÒÚÐÙÑÜNumberNumberInstead of a list an interval may be used to specify the range of allowed values for a parameter.The interval may be unlimited in one direction. The slot ÚÐÙ ÑÒ specifies the minimum ofthe allowed values, ÚÐÙ ÑÜ the maximum.2.3.13 step rec, step min, value function×ØÔÖ×ØÔÑÒÚÐÙÙÒØÓÒNumberNumberÐÒ¸ÐÓ¸ÕÙ¸ ...If a range of values is possible for a parameter it might be a useful information to specify asuitable step width (×ØÔ Ö) between distinct values to be tested. Based on this informationa user interface might generate a list of suggestions for parameter values. The correspondingminimum reasonable step width can be provided by ×ØÔ ÑÒ. The step width can also bemodified by specifying a function in the slot ÚÐÙ ÙÒØÓÒ.HALCON Extension Package Interface / 2000-11-16
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.ÈÖÑ½ ÈÖÑ¾ ²² ÈÖÑ¾ ¼This means that the same number of values and at least one value must be passed withparameter 1 and parameter 2.ÈÖÑ¾ ¿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
Page 1: HALCON Version 6.0MVTec Software Gm
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Page 9 and 10: Chapter 1IntroductionHALCON can be
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5.6. AUXILIARY MACROS AND PROCEDURE
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5.6. AUXILIARY MACROS AND PROCEDURE
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Chapter 6Special Routines for Typic
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6.1. LOOP MACROS 89NamesÀÐÐÊ¸
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6.1. LOOP MACROS 91contains less ch
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6.1. LOOP MACROS 93ÀÖÖÓÖ ÁÈ
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6.2. OBJECT GENERATION 95ÀÖÖÓÖ
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6.2. OBJECT GENERATION 97each regio
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Chapter 7Creating a New HALCON Pack
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7.1. THE HALCON COMPILER ’HCOMP
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7.2. GENERATING HALCON PACKAGES 103
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106 CHAPTER 7. CREATING A NEW HALCO
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114 APPENDIX A. HALCON ERROR CODES
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132 APPENDIX A. HALCON ERROR CODESH
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