Description
- Only accept answers submitted via git push to this course project for you at https://hconnect.hanyang.ac.kr (<Year>_<Course no.>_<Class code>/<Year>_<Course no.>_<Student ID>.git).
- Place your files under the directory structure <Assignment name>/<Problem no.>/<your file> just like the following example.
+ 2020_ITE0000_2019000001
+ LabAssignment2/
+ 1/
- py
+ 2/
- py
+ 3/
- py
- The submission time is determined not when the commit is made but when the git push is made.
- Write down a Python program to draw a transformed triangle in a 2D space.
- Set the window title to your student ID and the window size to (480,480).
- Complete the render() function below to draw a triangle in the manner described in C.
- You have to use OpenGL transformation functions. Do not use numpy matrix multiplication for composing transformations.
# draw cooridnates glBegin(GL_LINES) glColor3ub(255, 0, 0) glVertex2fv(np.array([0.,0.])) glVertex2fv(np.array([1.,0.])) glColor3ub(0, 255, 0) glVertex2fv(np.array([0.,0.])) glVertex2fv(np.array([0.,1.])) glEnd()
glColor3ub(255, 255, 255)
drawTriangle()
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- If you press or repeat a key, the triangle should be transformed as shown in the Table:
| Key | Transformation |
| Q | Translate by -0.1 in x direction |
| E | Translate by 0.1 in x direction |
| A | Rotate by 10 degrees counterclockwise |
| D | Rotate by 10 degrees clockwise |
| 1 | Reset the triangle with identity matrix |
- Transformations should be accumulated (composed with previous one) unless you press ‘1’.
- You may need a global variable (like a python list object) to store key inputs.
- Files to submit: A Python source file (Name the file whatever you want (in English). Extension should be .py) F. Expected result:
- Write down a Python program to draw rotating point p=(0.5, 0) and vector v=(0.5, 0) in a 2D space.
- Set the window title to your student ID and the window size to (480,480).
- Use the following render() and fill “# your implementation” parts to render p and v.
- Hint: Render the vector v as a line segment starting from the origin (0,0).
glColor3ub(255, 255, 255)
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- Expected result: Uploaded LabAssignment5-1.mp4
- Do not mind the initial angle.
- p and v should be t rad rotated when t seconds have elapsed since the program was executed.
- You need to somehow combine a rotation matrix and a translation matrix to produce the expected result.
- Files to submit: A Python source file (Name the file whatever you want (in English). Extension should be .py)
