sandeshkhadka/treeleaf_cpp

Student Records and 3D Box Transformations

Overview

This repository contains two tasks:

1. CSV Student Records Sorting: A program that reads student records from a CSV file and sorts the data based on name and age.
2. 3D Box Transformations: A program that performs transformations (rotation and scaling) on a 3D box represented by its vertices.

Assumptions and Requirement

• The input CSV file follows the format: id,name,date_birth,roll_no,department,address.
• For the transformations, angles should be in degrees and the scaling factor should be a positive number.

Platform and environment

• Compiled and tested on x86_64-pc-linux-gnu with clang version 18.1.8

Task 1: CSV Student Records Sorting

Approach

1. Reading CSV File: The program reads a CSV file containing student records and parses each row to create Student objects.
2. Sorting: The records can be sorted by name or by age. Age is calculated from the date of birth.
3. Exporting: The sorted data is exported to new CSV files.

Instructions

1. Compile and Run:

   clang++ -o csvsort csv_sort.cpp
   ./csvsort input.csv [sortby]

   • input.csv: The CSV file containing student records.
   • [sortby]: Sorting criteria (age, name, or both). For help:

   ./csvsort -h

2. Example Usage:

   ./csvsort students.csv age

   This will generate SortedByAge.csv.

Task 2: 3D Box Transformations

Approach

1. Vertex and Box Representation: The box is represented using Vertex and Box classes.
2. Transformations: The Transformation class performs rotations about the X, Y, and Z axes and scaling based on user input.
3. Transformation Method: Matrix multiplication is used for transformation

Note: The Vertex structure has been updated to be homogenous(additional element h) for matrix multiplication. Although it is not required unless for translation, I decided to do that so it can be easily be exented to support other transformation in future.

Instructions

1. Compile and Run:

   clang++ -o transformations transformations.cpp
   ./transformations 

2. Example Usage:
   • Enter the transformation angle (in degrees) and scaling factor when prompted.

Example Output

Original Box:
...
Rotated about X axis by 90 degrees:
...
Scaled by factor of 2:
...