Answered: n this project, we will be using…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

have to complete all the septs in green

In this project, we will be using various features from the Qt framework to build a graphical user interface (UI) that contains a canvas (for drawing images) and buttons.

You will receive different text files as input - each containing the elevation data for different mountains.

Based on the dimensions and number of values in a file, you will create a canvas with similar dimensions.

For example, a file that contains data for 256 rows and 256 columns, should have a canvas with dimensions of 256 x 256 data points (refer to the canvas on the right).

heres the code

import sys

from PyQt5 import QtWidgets as qtw

from PyQt5 import QtGui as qtg

from PyQt5 import QtCore as qtc

class mainWindow(qtw.QWidget):

# Sprint-1 Step-1: Initializer function

def __init__(self):

super().__init__()

# Sprint-1 Step-2: Variables

self.n_rows = 0

self.n_columns = 0

self.grid_data = []

# Sprint-1 Step-3: Read input file

file = open('../Data/medium.txt','r')

# Sprint-1 Step-4: Extract the values of line-1 into

# self.n_rows and self.n_columns

# Sprint-1 Step-5:

# Extract the values of line-2 into a two-dimensional list

# called self.grid_data

# Important! Make sure each value is stored as a valid

# float with two decimals

# Sprint-1 Step-6:

# Set window title and icon

# Create self.label1 to be used to display the canvas

# Create self.canvas based on the size of self.n_columns and self.n_rows

# Set self.canvas as the image for label1

# Create the layout and display the UI

# Sprint-1 Step-7:

# Link a painter to label1's image and plot the data_points in

# self.grid_data (the items in the sub-lists) on the canvas.

# Use "#c2c2a3" as color

# *****************************************

# This is the Main Code section of the app.

# *****************************************

if __name__ == '__main__':

app = qtw.QApplication(sys.argv)

# Create a mainWindow object

mw = mainWindow()

sys.exit(app.exec())

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