Description
Write down a Python program to draw a transformed triangle in a 2D space.
- Set the window title 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
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- You may need a global variable (like a python list object) to store key inputs.
Write down a Python program to draw rotating point p1=(0.5, 0), p2=(0, 0.5) and vector v1=(0.5, 0), v2=(0, 0.5) in a 2D space.
- Set the window title and the window size to (480,480).
- Use the following render() and fill “# your implementation” parts to render p1,p2 and v1,v2.
- Hint: Render the vector v1, v2 as a line segment starting from the origin (0,0).
- Hint2: You need different translation matrix for p1 and p2 to render them correctly.
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- Expected result: Uploaded LabAssignment4-2.mp4
- Do not mind the initial angle.
- p1,p2 and v1,v2 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
Extension should be .py)
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