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haas:spring2016:cprog:projects:cos0

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haas:spring2016:cprog:projects:cos0 [2016/03/07 17:20] – [Program] wedgehaas:spring2016:cprog:projects:cos0 [2016/03/07 17:30] (current) – [Program] wedge
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   * can algorithmically generate a circle of points (x, y coordinate pairs)   * can algorithmically generate a circle of points (x, y coordinate pairs)
-  * obtain image width, height from command-line +  * can obtain information from the command-line (argc/argv) 
-  * obtain radius from command-line +  * can call functions from a library (gd).
-  * obtain center x, y from command-line +
 =====Background===== =====Background=====
 We've spent our time so far this semester covering the basic concepts of programming, in C. Variables, selection statements, iteration, functions, structs, etc. We've spent our time so far this semester covering the basic concepts of programming, in C. Variables, selection statements, iteration, functions, structs, etc.
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     * *(argv+4): center x of circle (a value of 0 should result in auto-centering of x with respect to width)     * *(argv+4): center x of circle (a value of 0 should result in auto-centering of x with respect to width)
     * *(argv+5): center y of circle (a value of 0 should result in auto-centering of y with respect to height)     * *(argv+5): center y of circle (a value of 0 should result in auto-centering of y with respect to height)
 +    * *(argv+6), if present, will be the name of the output image file produced. If it is absent, assume the default name **cos0.png**.
   * image width, height is at least 800x600 (can be larger, but not huge, don't go beyond 1280x1024)-- and specified on the command-line when running the program   * image width, height is at least 800x600 (can be larger, but not huge, don't go beyond 1280x1024)-- and specified on the command-line when running the program
     * if the information isn't supplied, display an error and exit with non-zero status     * if the information isn't supplied, display an error and exit with non-zero status
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 ====getting started==== ====getting started====
-You may make use of the following skeleton program to assist you in doing this project:+You may make use of the following skeleton program to assist you in doing this project. 
 + 
 +Note that this code is not in conformance with project specifications, but is provided to give you a starting place for modifications and additions:
  
 <code c> <code c>
 /* /*
- * PROGRAM.c  - skeleton code to use the GD graphics library to create + * PROGRAM.c  - skeleton code to use the GD graphics library 
- *              an image.+ *              to create an image.
  *  *
  * To compile:  gcc -o PROGRAM PROGRAM.c -lgd  * To compile:  gcc -o PROGRAM PROGRAM.c -lgd
haas/spring2016/cprog/projects/cos0.1457371225.txt.gz · Last modified: 2016/03/07 17:20 by wedge

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