HDevelop User's Manual

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36 CHAPTER 2. GRAPHICAL USER INTERFACE of a program segment (henceforth named body) dependent on a test ( and Ð×)and the repetition of a program segment (ÓÖ and ÛÐ). Furthermore, you may stop the program’s execution at any position (×ØÓÔ) or terminate HDevelop (ÜØ). The operators ××Ò and Ò×ÖØ do not influence the execution. They rather serve to specify values for control data (assignment). The operator ÓÑÑÒØ is used to add a comment, that means any sequence of characters, to the program. The corresponding menu is shown in figure 2.22. Figure 2.22: Menu item ÓÒØÖÓÐ. Selecting a menu item displays the corresponding control construct in the operator window, where you can set the necessary parameters. After specifying all parameters you may transfer the construct into your program. A direct execution for loops and conditions is not possible, in contrast to other HDevelop and HALCON operators, because you have to specify the loop’s and condition’s body first to obtain useful semantics. If necessary, you may execute the program after the input with ËØÔ or ÊÙÒ. The insertion cursor is positioned after the construct head to ensure the input of the construct’s body occurs in the correct place. This body is indented to make the nesting level of the control constructs visible, and thus to help you in understanding the program structure (see figure 2.23). To get an idea how to use loops, you may look at the example session in section 1.2, and at the programs in chapters 5.3, 5.8 and 5.9. The semantics for loops and conditions are shown in chapter 3.7. The operator ××Ò serves as an assignment operator for control variables (numbers and strings). Analogously to “normal” operators the input is made in the operator window by specifying both “parameters” ÁÒÔÙØ and Ê×ÙÐØ (i.e., right and left side of the assignment). An instruction in C, e.g., Ü Ý · Þ HDevelop / 2000-11-16
2.3. MAIN WINDOW 37 Figure 2.23: Example for using a ÓÖ loop. is declared inside the operator window as ××Ò´Ý · Þ¸Üµ and displayed in the program window by Ü Ý · Þ The operator Ò×ÖØ implements the assignment of a single value (tuple of length 1) at a specified index position of a tuple. Thus an array assignment (here in C syntax) ℄ Ú is entered as Ò×ÖØ´¸Ú¸¸µ in the operator window, and is displayed as ℄ Ú in the HDevelop program window. The operators ×ØÓÔ and ÜØ are used to terminate the program. More precisely, ×ØÓÔ interrupts an execution and ÜØ terminates HDevelop. Having interrupted the execution you may continue the program by pressing ËØÔ or ÊÙÒ. This is useful, e.g., in demo programs to install defined positions for program interruption. Under UNIX, you can use ÜØ in combination with a startup file and the option ¹ÖÙÒ (see section 1.2). Thus, HDevelop will not only load and run your application automatically, but also terminate when reaching ÜØ. The operator ÓÑÑÒØ allows to add a line of text to the program. This text has no effect on the execution of the program. A comment may contain any sequence of characters. HALCON 6.0
Page 1 and 2: HALCON Version 6.0 MVTec Software G
Page 3 and 4: About This Manual This manual is a
Page 5 and 6: Contents 1 Introducing HDevelop 1 1
Page 7 and 8: Contents iii comment . . . . . . .
Page 9 and 10: Chapter 1 Introducing HDevelop In f
Page 11 and 12: 1.2. EXAMPLE SESSION 3 Figure 1.1:
Page 13 and 14: 1.2. EXAMPLE SESSION 5 Figure 1.2:
Page 15 and 16: 1.3. ADDITIONAL SOURCES OF INFORMAT
Page 17 and 18: Chapter 2 Graphical User Interface
Page 19 and 20: 2.3. MAIN WINDOW 11 Figure 2.1: The
Page 21 and 22: 2.3. MAIN WINDOW 13 A security chec
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
Page 29 and 30: 2.3. MAIN WINDOW 21 Figure 2.10: Ma
Page 31 and 32: 2.3. MAIN WINDOW 23 2.3.2.4 The Men
Page 33 and 34: 2.3. MAIN WINDOW 25 Figure 2.13: On
Page 35 and 36: 2.3. MAIN WINDOW 27 in a graphics w
Page 37 and 38: 2.3. MAIN WINDOW 29 Figure 2.16: On
Page 39 and 40: 2.3. MAIN WINDOW 31 Figure 2.17: Co
Page 41 and 42: 2.3. MAIN WINDOW 33 Figure 2.18: Se
Page 43: 2.3. MAIN WINDOW 35 Figure 2.20: Se
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 and 72: 3.4. OPERATIONS ON ICONIC OBJECTS 6
Page 73 and 74: 3.5. EXPRESSIONS FOR INPUT CONTROL
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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4.2. CODE GENERATION FOR VISUAL BAS
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4.3. CODE GENERATION FOR C 89 4.3 C
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4.4. GENERAL ASPECTS OF CODE GENERA
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Chapter 5 Program Examples This cha
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5.2. CAPILLARY VESSEL 95 ÚÐÓ×Û
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5.2. CAPILLARY VESSEL 97 Figure 5.3
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5.3. PARTICLES 99 each. Now it is e
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5.4. ANNUAL RINGS 101 ÚÐÖÛÒÓ
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5.5. BONDING 103 Figure 5.9: Exampl
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5.7. DEVICES 105 Figure 5.11: Calib
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5.7. DEVICES 107 Figure 5.13: Resis
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5.8. CELL WALLS 109 Figure 5.15: Mi
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5.10. EXCEPTION HANDLING 111 Figure
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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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