The first model I “Madeup” was a scene of blue butterflies. I used a parametric equation for the butterflies and populated the scene with many of them.




The second model I “Madeup” was a variation on the “heart” parametric equation. I designed the loop for generating the curve, and did some revolutions, translation, rotations, and scaling to create the heart-based shapes.

Thought Process:

For this assignment, I initially began testing the application by running old examples to get a feel for the way the code runs.  I tested trying out a variety of options for generating shapes, but I eventually decided that I wanted a more systematic and logical model. I researched parametric equations and was able to understand how to implement them via loops and sine/cosine functions.  The parametric equations made sense to use in Madeup and allowed for a straightforward design and implementation. Without such equations, the logic of designing a model by random tweaking is quite difficult.


There was a slight learning curve with Madeup since I had used it personally. It can still be a challenge to understand how the parameters are used in functions. One challenge that I came across was trying to visualize the model for non-parametric models. As logical as the program is, creativity is needed to understand how the models will be rendered.  I overcame this challenge by playing with different functions and seeing what the result was.  Lastly, there was some issues with rendering the program for code that uses a lot of processing power. I had to cut back on code in order to save computational resources, so I think there is a need to understand the stress limits of what the program is designed for.

 Feature Requests:

  1. Be able to save/export the code to a text file or a “.mdup” file.
  2. Be able to render models using more than one color in a single program
  3. Possibly be able to inspect the model for coordinates. For example, being able to toggle displaying a 3D grid with units.
  4. Display more helpful messages if there is a syntax error, at least if it is not running at all.
  5. Display statistics for the shapes that are used like faces and vertices.


  1. Underscores are unable to be be parsed by the language. For example, I could not declare a variable with “x_1” or “y_2” since the program would not run.
  2. At one time I got this error:# A fatal error has been detected by the Java Runtime Environment:# SIGSEGV (0xb) at pc=0x00007facede165f0, pid=16185, tid=140380725032704# JRE version: 6.0_27-b27# Java VM: OpenJDK 64-Bit Server VM (20.0-b12 mixed mode linux-amd64 compressed oops)

    # Derivative: IcedTea6 1.12.6

    # Distribution: Ubuntu 12.04 LTS, package 6b27-1.12.6-1ubuntu0.12.04.4

    # Problematic frame:

    # V [] DictionaryEntry::contains_protection_domain(oopDesc*) const+0x40

    # An error report file with more information is saved as:

    # /tmp/hs_err_pid16185.log

    # If you would like to submit a bug report, please include

    # instructions how to reproduce the bug and visit:


    Aborted (core dumped)



3.  Another error I got was:

terminate called after throwing an instance of ‘std::bad_alloc’

what(): std::bad_alloc

Aborted (core dumped)

which I don’t know if this was a problem with the code I used or something in the Madeup program with using too much memory.



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