diff options
Diffstat (limited to 'creator.py')
| -rw-r--r-- | creator.py | 38 |
1 files changed, 17 insertions, 21 deletions
@@ -12,8 +12,9 @@ # # You should have received a copy of the GNU General Public License # along with this program. If not, see <https://www.gnu.org/licenses/>. + """ -The 'creator' module contains class definitions for coordinates +The creator.py module contains class definitions for coordinates and various components we add to an airfoil (spars, stringers, and ribs.) Classes: @@ -25,6 +26,7 @@ Classes: Functions: plot_geom(airfoil): generates a 2D plot of the airfoil & any components. """ + import sys import os.path import numpy as np @@ -33,13 +35,6 @@ import bisect as bi import matplotlib.pyplot as plt -# This variable is required for main.py constant wing dimensions -# to be passed to inheriting classes (Airfoil, Spar, Stringer, Rib). -# This way, we don't have to redeclare our coordinates as parameters for -# our spars, stringers and ribs. This makes for more elegant code. -global parent - - class Coordinates: """ All airfoil components need the following: @@ -55,10 +50,10 @@ class Coordinates: So, all component classes inherit from class Coordinates. """ - def __init__(self, chord, semi_span): - # Global dimensions - self.chord = chord if chord > 40 else 40 - self.semi_span = semi_span + chord = 100 + semi_span = 200 + + def __init__(self): # mass and area self.mass = float() self.area = float() @@ -68,9 +63,11 @@ class Coordinates: self.x = [] self.z = [] - # The airfoil components know the Coordinates instance's coords - global parent - parent = self + @classmethod + def from_chord(cls, chord, semi_span): + cls.chord = chord + cls.semi_span = semi_span + return None def __str__(self): return type(self).__name__ @@ -131,7 +128,9 @@ class Airfoil(Coordinates): def __init__(self): global parent # Run 'Coordinates' super class init method with same chord & 1/2 span. - super().__init__(parent.chord, parent.semi_span) + super().__init__() + self.chord = Coordinates.chord + self.semi_span = Coordinates.semi_span # NACA number self.naca_num = int() # Mean camber line @@ -236,10 +235,9 @@ class Airfoil(Coordinates): class Spar(Coordinates): """Contains a single spar's location.""" - global parent def __init__(self): - super().__init__(parent.chord, parent.semi_span) + super().__init__() self.x_start = [] self.x_end = [] self.thickness = float() @@ -298,10 +296,9 @@ class Spar(Coordinates): class Stringer(Coordinates): """Contains the coordinates of all stringers.""" - global parent def __init__(self): - super().__init__(parent.chord, parent.semi_span) + super().__init__() self.x_start = [] self.x_end = [] self.thickness = float() @@ -432,7 +429,6 @@ def plot_geom(airfoil): # Graph formatting plt.xlabel('X axis') plt.ylabel('Z axis') - plot_bound = max(airfoil.x) plt.xlim(- 0.10 * plot_bound, 1.10 * plot_bound) plt.ylim(- (1.10 * plot_bound / 2), (1.10 * plot_bound / 2)) |