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| from math import cos, sin, pi | |
| import c4d | |
| from c4d import gui | |
| VENUS_YEAR_DURATION = 224.7 | |
| EARTH_YEAR_DURATION = 365.25 | |
| VENUS_ORBIT_RADIUS = 108.2 | |
| EARTH_ORBIT_RADIUS = 149.6 | |
| # Script state in the menu or the command palette | |
| # Return True or c4d.CMD_ENABLED to enable, False or 0 to disable | |
| # Alternatively return c4d.CMD_ENABLED|c4d.CMD_VALUE to enable and check/mark | |
| #def state(): | |
| # return True | |
| # Main function | |
| def main(): | |
| draw() | |
| gui.MessageDialog('The path was successfully generated.') | |
| def draw(): | |
| points = generate_vector_points() | |
| spline = c4d.SplineObject(len(points), c4d.SPLINETYPE_BEZIER) | |
| spline.SetAllPoints(points) | |
| #t = {'vl': c4d.Vector(0, -83, 0), 'vr': c4d.Vector(0, 83, 0)} | |
| #spline.SetTangent(1, t['vl'], t['vr']) | |
| #spline.SetTangent(2, t['vl'], t['vr']) | |
| doc.InsertObject(spline) | |
| c4d.EventAdd() | |
| def generate_vector_points(): | |
| points = [] | |
| eight_years_in_days = 365 * 8 | |
| for t in range(eight_years_in_days): | |
| coordinates = calculate_coordinates_of_venus_path_at(t) | |
| vector = generate_vector_from_coordinates(coordinates) | |
| points.append(vector) | |
| return points | |
| def generate_vector_from_coordinates(coordinates): | |
| return c4d.Vector(coordinates[0], coordinates[1], coordinates[2]) | |
| def calculate_coordinates_of_venus_path_at(t): | |
| xPos = x(t) | |
| yPos = y(t) | |
| zPos = 0 | |
| return (xPos, yPos, zPos) | |
| def x(t): | |
| return (EARTH_ORBIT_RADIUS * cos(2 * pi * t / EARTH_YEAR_DURATION)) + (VENUS_ORBIT_RADIUS * cos(2 * pi * t / VENUS_YEAR_DURATION)) | |
| def y(t): | |
| return (EARTH_ORBIT_RADIUS * sin(2 * pi * t / EARTH_YEAR_DURATION)) + (VENUS_ORBIT_RADIUS * sin(2 * pi * t / VENUS_YEAR_DURATION)) | |
| # Execute main() | |
| if __name__=='__main__': | |
| main() |
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