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javelin_project.py
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javelin_project.py
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from PyQt5 import QtWidgets, uic, QtCore
from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas
from matplotlib.figure import Figure
import matplotlib.image as mpimg
import sys
import numpy as np
import math
import images
import icons
class Ui(QtWidgets.QMainWindow):
def __init__(self):
super(Ui, self).__init__()
uic.loadUi(r'F:\project3-2\sports\Final_Project\project_ui.ui', self)
# Load the image
self.img = mpimg.imread(r'Project_Rana\Images\area.png')
# Create a FigureCanvas with your figure, and add it to your widget
fig = Figure()
fig.patch.set_alpha(0.0)
self.canvas = FigureCanvas(fig)
self.canvas.setStyleSheet("background:transparent;")
layout = QtWidgets.QVBoxLayout(self.plotWidget)
# Add the FigureCanvas to the layout
layout.addWidget(self.canvas)
# Get the axes from the figure, and plot your simulation
self.ax = fig.add_subplot(111)
# Make the axes background transparent
self.ax.patch.set_alpha(0.0)
# Set the plot limits
self.ax.set_xlim(0, 170) # Set x-limit
self.ax.set_ylim(0, 133) # Set y-limit
# Adjust slider of the launching speed (m/s)
self.horizontalSlider_launching_speed.setMinimum(5)
self.horizontalSlider_launching_speed.setMaximum(40)
self.horizontalSlider_launching_speed.setValue(30)
self.horizontalSlider_launching_speed.valueChanged.connect(self.update_speed) # Update speed
# Adjust slider of the firing angle
self.horizontalSlider_firing_angle.setMinimum(30)
self.horizontalSlider_firing_angle.setMaximum(90)
self.horizontalSlider_firing_angle.setValue(36)
self.horizontalSlider_firing_angle.valueChanged.connect(self.update_angle) # Update angle
# Adjust slider of the motion display speed
self.horizontalSlider_display_speed.setMinimum(1)
self.horizontalSlider_display_speed.setMaximum(10)
self.horizontalSlider_display_speed.setValue(5)
self.horizontalSlider_display_speed.valueChanged.connect(self.update_motion_speed)
# Default speed
self.animation_speed = 5
# Adjust play and restart button
self.pushButton_play_pause.clicked.connect(self.play_pause)
self.pushButton_restart.clicked.connect(self.restart)
# Initial conditions
self.v = 27 # initial speed (m/s)
self.prev_v = self.v # store the previous speed
self.label_launching_speed.setText(f'{self.v}')
self.theta = math.radians(36) # launch angle (converted to radians)
self.prev_theta = self.theta # store the previous angle
self.label_firing_angle.setText(f'{36}')
self.g = 9.81 # acceleration due to gravity (m/s^2)
# Initial position and velocity
self.x, self.y = 0, 0 # start at origin
self.vx = self.v * math.cos(self.theta)
self.vy = self.v * math.sin(self.theta)
# Maximum height
self.max_height = 0
# Time step (change as needed)
self.dt = 0.1
# Lists to store x and y values
self.x_vals = []
self.y_vals = []
# Calculate the maximum distance using the range equation
self.d_max = (self.v**2 * np.sin(2*self.theta)) / self.g
# Create a timer for animation
self.timer = QtCore.QTimer()
self.timer.timeout.connect(self.draw_frame)
self.timer.start(20) # interval in milliseconds
self.show()
def play_pause(self):
new_v = self.horizontalSlider_launching_speed.value()
new_theta = math.radians(self.horizontalSlider_firing_angle.value())
if self.timer.isActive():
self.timer.stop()
else:
if new_v != self.prev_v or new_theta != self.prev_theta:
self.restart() # Reset the simulation with the new values
self.prev_v = new_v # update the previous speed
self.prev_theta = new_theta # update the previous angle
else:
self.timer.start(20) # interval in milliseconds
self.show()
def restart(self):
# Reset initial conditions
self.x, self.y = 0, 0 # start at origin
self.vx = self.v * math.cos(self.theta)
self.vy = self.v * math.sin(self.theta)
self.x_vals = []
self.y_vals = []
self.d_max = (self.v**2 * np.sin(2*self.theta)) / self.g
self.max_height = 0
# Start the timer
self.timer.start(20) # interval in milliseconds
self.show()
def draw_frame(self):
# Modify timer interval based on animation speed
timer_interval = int(1000 / self.animation_speed)
self.timer.setInterval(timer_interval)
# Update position and velocity
self.x += self.vx * self.dt
self.y += self.vy * self.dt # subtract because Pygame's y-coordinates increase going down
self.vy -= self.g * self.dt # accelerate downwards due to gravity
# Add current position to trajectory points
self.x_vals.append(self.x)
self.y_vals.append(self.y)
# Update the distance, time and max. height labels
self.label_throwing_distance.setText(f'{self.x:.2f} m')
self.label_throwing_time.setText(f'{len(self.x_vals) * self.dt:.2f} s')
# self.label_max_hight.setText(f'{self.y:.2f} m')
# Update the maximum height
if self.y > self.max_height:
self.max_height = self.y
self.label_max_height.setText(f'{self.max_height:.2f} m')
# Clear the current plot
self.ax.clear()
# Set the background image
self.ax.imshow(self.img, extent=[0, 170, 0, 133])
# Draw the trajectory
if len(self.x_vals) > 1:
self.ax.plot(self.x_vals, self.y_vals, color='blue')
# Draw the ball
# self.ax.plot(self.x, self.y, 'ro')
self.ax.plot(self.x, self.y, marker=(3, 1, math.degrees(self.theta) + 90), markersize=15, color='red')
# Set the color, size, and weight of the title and labels
self.ax.set_xlabel('Distance (m)', fontsize=14, fontweight='bold', color='white')
self.ax.set_ylabel('Height (m)', fontsize=14, fontweight='bold', color='white')
self.ax.set_title('Javelin Trajectory', fontsize=24, fontweight='bold', color='black')
self.ax.tick_params(color='white', size=10, labelsize=13, labelcolor='white')
# Show the grid
self.ax.grid(True, linestyle='-', color='white', linewidth=0.5)
# End simulation if ball hits the ground or reaches maximum distance
if self.y < 0 or self.x > self.d_max:
self.timer.stop()
# Draw the plot
self.canvas.draw()
def update_speed(self, value):
self.v = value
self.label_launching_speed.setText(f'{self.v}')
def update_angle(self, value):
self.theta = math.radians(value)
self.label_firing_angle.setText(f'{value}')
def update_motion_speed(self, value):
# Update animation speed based on slider value
self.animation_speed = value
app = QtWidgets.QApplication(sys.argv)
window = Ui()
app.exec_()