Branch Assignment
Code to Investigate
class Turtle def self.set_color(color) glColor3f(color.red, color.green, color.blue) end def self.draw_line(length, width_in_pixels) glLineWidth(width_in_pixels) glBegin(GL_LINES) glVertex2d(0.0, 0.0) glVertex2d(length, 0.0) glEnd() end def self.move_forward(magnitude) glTranslatef(magnitude, 0.0, 0.0) end def self.turn(theta) glRotatef(theta, 0.0, 0.0, 1.0) end end
Code to Implement
OpenGLStackUtils
class OpenGLStackUtils def self.push_do_pop raise :not_yet_implemented end end
Branch
class Branch def branch(length, line_width_in_pixels, depth_remaining) raise :not_yet_implemented end end
Note: to produce the reference images the code below was used:
next_length = length * 0.5 next_line_width_in_pixels = line_width_in_pixels * 0.8
Note: the child branches are 1.0/3.0 from the beginning and the end.
Note: the child branches are rotated 30.0 degrees and -30.0 degrees.
Note: in the recursive case the child branches were drawn before the line at the current depth to allow the green to be beneath the brown.
Do NOT worry if your images are not exact matches of the reference images.
max_depth: 0 | max_depth: 1 | max_depth: 2 | max_depth: 3 | max_depth: 4 | max_depth: 5 |