HDevelop User's Manual

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64 CHAPTER 3. LANGUAGE ¯ If one of the tuples is of length one, all elements of the other tuples are combined with that single value for the chosen operation. ¯ If both tuples have a length greater than one, both tuples must have the same length (otherwise a runtime error occurs). In this case, the selected operation is applied to all elements with the same index. The length of the resulting tuples is identical to the length of the input tuples. ¯ If one of the tuples is of length 0 (℄), a runtime error occurs. In table 3.6 you can find some examples for arithmetic operations with tuples. In this example Input ℄ ℄ ½¸¾¸¿℄ ¾ ½¸¾¸¿℄ ¾º½ · ½¼ ½¸¾¸¿℄ ½¸¾¸¿℄ ½¸¾¸¿℄ ½¸¾℄ ³ÌÜØ½³ · ³ÌÜØ¾³ ½º¾¿ · ³ ÌÜØ³ ³ÌÜØ½ ³ · · ³ ÌÜØ¾³ ³ÌÜØ ³ · ¿º½ ¾ ¿º½ ´¾ · ³ ÌÜØ³µ ¿º½ · ¾ · ³ ÌÜØ³ ¿º½ · ´¾ · ³ ÌÜØ³µ µ ³ÌÜØ ³ · ¾º½ · ¿ Result ¾ ¾ ¾¸¸℄ ½¾º½¸½º¾¸½º¿℄ ½¸¸℄ runtime error ³ÌÜØ½ÌÜØ¾³ ³½º¾¿ ÌÜØ³ ³ÌÜØ½ ÌÜØ¾³ ³ÌÜØ º¾³ runtime error ³º½ ÌÜØ³ ³¿º½¾ ÌÜØ³ ³ÌÜØ ¾º½¿³ Table 3.6: Examples for arithmetic operations with tuples and strings you should pay special attention to the order in which the string concatenations are performed. 3.5.2 Assignment In HDevelop, an assignment is treated like an operator. To use an assignment you have to select the operator ××Ò ´ÁÒÔÙØ¸ Ê×ÙÐØµ. This operator has the following semantics: It evaluates ÁÒÔÙØ (right side of assignment) and stores it in Ê×ÙÐØ (left side of assignment). However, in the program text the assignment is represented by the usual syntax of the assignment operator: ’’. The following example outlines the difference between an assignment in C syntax and its transformed version in HDevelop: The assignment in C syntax Ù ×Ò´Üµ · Ó×´Ýµ is defined in HDevelop using the assignment operator as ××Ò´×Ò´Üµ · Ó×´Ýµ¸ Ùµ HDevelop / 2000-11-16
3.5. EXPRESSIONS FOR INPUT CONTROL PARAMETERS 65 which is displayed in the program window as: Ù ×Ò´Üµ · Ó×´Ýµ If the result of the expression doesn’t need to be stored into a variable, the expression can directly be used as input value for any operator. Therefore, an assignment is necessary only if the value has to be used several times or if the variable has to be initialized (e.g., for a loop). A second assignment operator is available: (Ò×ÖØ´ÁÒÔÙØ¸ÎÐÙ¸ÁÒÜ¸Ê×ÙÐØµ). It is used to assign tuple elements. If the first input parameter and the first output parameter are identical, the call: Ò×ÖØ ´Ö×¸ Ö¸ ÊÙ×¹½¸ Ö×µ is not presented in the program text as an operator call, but in the more intuitive form as: Ö×ÊÙ×¹½℄ Öº To construct a tuple with Ò×ÖØ, normally an empty tuple is used as initial value and the elements are inserted in a loop: ÌÙÔÐ ℄ ÓÖ ¼ ØÓ Ý ½ ÌÙÔÐ℄ ×ÕÖØ´ÖÐ´µµ ÒÓÖ As you can see from this example, the indices of a tuple start at 0. An insertion into a tuple can generally be performed in one of the following ways: 1. In case of appending the value at the ’back’ or at the ’front’, the concatenation can be used. Here the ××Ò operator is used with the following parameters: ××Ò´ÌÙÔÐ¸ÆÛÎÐ℄¸ÌÙÔÐµ which is displayed as ÌÙÔÐ ÌÙÔÐ¸ÆÛÎÐ℄ 2. If the index position is somewhere in between, the operator Ò×ÖØ has to be used. It takes the following arguments as input: first the tuple in which the new value should be inserted; then the new value and after that the index position as the third input parameter. The result (the fourth parameter) is almost identical with the input tuple, except of the new value at the defined index position. In the following example regions are dilated with a circle mask and afterwards the areas are stored into the tuple Ö×. In this case the operator Ò×ÖØ is used. HALCON 6.0
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HALCON Version 6.0 MVTec Software G
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About This Manual This manual is a
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Contents 1 Introducing HDevelop 1 1
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Contents iii comment . . . . . . .
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Chapter 1 Introducing HDevelop In f
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1.2. EXAMPLE SESSION 3 Figure 1.1:
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1.2. EXAMPLE SESSION 5 Figure 1.2:
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1.3. ADDITIONAL SOURCES OF INFORMAT
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Chapter 2 Graphical User Interface
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2.3. MAIN WINDOW 11 Figure 2.1: The
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Page 23 and 24: 2.3. MAIN WINDOW 15 a directory whe
Page 25 and 26: 2.3. MAIN WINDOW 17 Figure 2.7: The
Page 27 and 28: 2.3. MAIN WINDOW 19 and not HDevelo
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Page 31 and 32: 2.3. MAIN WINDOW 23 2.3.2.4 The Men
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Page 35 and 36: 2.3. MAIN WINDOW 27 in a graphics w
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Page 43 and 44: 2.3. MAIN WINDOW 35 Figure 2.20: Se
Page 45 and 46: 2.3. MAIN WINDOW 37 Figure 2.23: Ex
Page 47 and 48: 2.3. MAIN WINDOW 39 output paramete
Page 49 and 50: 2.3. MAIN WINDOW 41 is registered i
Page 51 and 52: 2.3. MAIN WINDOW 43 ËÙ×ØÓÒ×
Page 53 and 54: 2.3. MAIN WINDOW 45 ÏÒÓÛ º ×
Page 55 and 56: 2.3. MAIN WINDOW 47 Figure 2.31: Th
Page 57 and 58: 2.5. OPERATOR WINDOW 49 The program
Page 59 and 60: 2.5. OPERATOR WINDOW 51 Please refe
Page 61 and 62: 2.6. VARIABLE WINDOW 53 operator ha
Page 63 and 64: 2.6. VARIABLE WINDOW 55 aspect rati
Page 65 and 66: 2.7. GRAPHICS WINDOW 57 Figure 2.38
Page 67 and 68: Chapter 3 Language The following ch
Page 69 and 70: 3.2. CONTROL TYPES AND CONSTANTS 61
Page 71: 3.4. OPERATIONS ON ICONIC OBJECTS 6
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Page 85 and 86: 3.6. RESERVED WORDS 77 ÓÖ, ÜÓÖ
Page 87 and 88: 3.8. LIMITATIONS 79 In the followin
Page 89 and 90: Chapter 4 Code Generation The idea
Page 91 and 92: 4.1. CODE GENERATION FOR C++ 83 Ì
Page 93 and 94: 4.1. CODE GENERATION FOR C++ 85 tha
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Page 97 and 98: 4.3. CODE GENERATION FOR C 89 4.3 C
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Page 101 and 102: Chapter 5 Program Examples This cha
Page 103 and 104: 5.2. CAPILLARY VESSEL 95 ÚÐÓ×Û
Page 105 and 106: 5.2. CAPILLARY VESSEL 97 Figure 5.3
Page 107 and 108: 5.3. PARTICLES 99 each. Now it is e
Page 109 and 110: 5.4. ANNUAL RINGS 101 ÚÐÖÛÒÓ
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Page 119 and 120: 5.10. EXCEPTION HANDLING 111 Figure
Page 121 and 122: 5.11. ROAD SCENE 113 any case. All
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5.11. ROAD SCENE 115 tures. Hence a
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Chapter 6 Miscellaneous This chapte
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6.5. RESTRICTIONS 119 Figure 6.1: E
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2 APPENDIX A. CONTROL ÌÙÔÐ½
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4 APPENDIX A. CONTROL Attention For
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6 APPENDIX A. CONTROL Result retur
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8 APPENDIX A. CONTROL ÚÙÔØÛÒ
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10 APPENDIX A. CONTROL HDevelop / 2
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12 APPENDIX B. DEVELOP Attention If
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14 APPENDIX B. DEVELOP Ú ÓÔÒ Û
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16 APPENDIX B. DEVELOP Ú Ò×ÔØ
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18 APPENDIX B. DEVELOP Parallelizat
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20 APPENDIX B. DEVELOP º ÀØ (inp
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22 APPENDIX B. DEVELOP ’black’
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24 APPENDIX B. DEVELOP Parameter º
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26 APPENDIX B. DEVELOP Parameter º
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28 APPENDIX B. DEVELOP If ÊÓÛ½
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30 APPENDIX B. DEVELOP Ú ×Ø ÛÒ
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32 APPENDIX B. DEVELOP Possible Suc
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34 APPENDIX B. DEVELOP See Also Ú
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36 APPENDIX B. DEVELOP HDevelop / 2
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38 APPENDIX C. GLOSSARY Operator wi
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40 Index Ú ×Ø ÔÖØ, 27, 39 Ú
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42 Index Operator Data base, 37 Nam
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44 Index HDevelop / 2000-11-16
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