coordgeo 1.0.1

A 2D coordinate geometry library (points, lines, conics, triangles).

coordgeo

A Python library for Coordinate Geometry — simple, intuitive, powerful.

This library provides mathematical classes (Point, Line, Circle, Ellipse, etc.) and tools for calculations and visualization in 2D geometry. It is built using OOP principles and designed to be easy to use even for beginners.

Installation your_project/ │ ├── main.py └── coordgeo/ ├── init.py ├── point.py ├── line.py ├── circle.py ├── parabola.py ├── ellipse.py ├── hyperbola.py ├── triangle.py └── plotting.py

Then in your Python file:

from coordgeo import *

or

import coordgeo

Quick Start Examples

1. Working with Points from coordgeo import Point

p1 = Point(3, 4) p2 = Point(8, 7)

print(p1.distance_to(p2)) print(p1.midpoint(p2)) print(p1.rotate(90))

2. Working with Lines from coordgeo import Point, Line

L = Line.from_points(Point(0, 0), Point(4, 4)) print(L.slope) print(L.contains(Point(2, 2)))

3. Circles from coordgeo import Circle, Point

c = Circle(center=Point(0, 0), radius=5) print(c.contains(Point(3, 4))) # True print(c.equation())

Creating a circle from a diameter:

c2 = Circle.from_diameter(Point(-3, 0), Point(3, 0))

4. Triangle properties from coordgeo import Triangle, Point

T = Triangle(Point(0,0), Point(4,0), Point(0,3)) print("Area:", T.area) print("Centroid:", T.centroid) print("Incenter:", T.incenter) print("Circumcenter:", T.circumcenter) print("Orthocenter:", T.orthocenter)

5. Conics (Parabola, Ellipse, Hyperbola) Parabola from coordgeo import Parabola

P = Parabola(a=2, orientation="right") print("Focus:", P.focus) print("Directrix:", P.directrix) print(P.equation())

Ellipse from coordgeo import Ellipse

E = Ellipse(a=5, b=3) print("Eccentricity:", E.eccentricity) print("Foci:", E.focus_points)

Hyperbola from coordgeo import Hyperbola

H = Hyperbola(a=5, b=3) print("Eccentricity:", H.eccentricity) print("Foci:", H.focus_points) print("Asymptotes:", H.asymptote_slopes)

Visualization (Plotting)

The library supports matplotlib visualization.

Example:

from coordgeo import Circle, Point from coordgeo.plotting import create_axes, plot_circle, show

fig, ax = create_axes()

C = Circle(center=Point(0,0), radius=4) plot_circle(ax, C)

show()

Plot Triangle from coordgeo import Triangle, Point from coordgeo.plotting import create_axes, plot_triangle, show

fig, ax = create_axes()

T = Triangle(Point(0,0), Point(4,0), Point(0,3)) plot_triangle(ax, T)

show()

Importing Strategy Recommended: from coordgeo import Point, Line, Circle

Avoid:

from coordgeo import *

(because it imports too many names into global scope)

Error Handling & Tips

If circles fail to construct from 3 points: Make sure the points are not collinear.

If plotting shows nothing: Ensure you call show() at the end.

If your line equation results in division error: Your line might be vertical — slope is undefined (None).

If conic is rotated or shifted: Currently only standard conics at origin are supported — rotation/translation support is coming later.

Why use this library?

Simple intuitive API Strong mathematical foundation Clear class structure Easy visualization support Excellent for learning coordinate geometry No unnecessary dependencies

License

MIT License — free to use and modify. Author

Developed by Kareem Khan For education, engineering, mathematics, and fun .

Change Log

1.0.1 (30/11/2025)

Initial Release

Introduced core classes:

Point, Line, Circle

Parabola, Ellipse, Hyperbola

Triangle

Implemented geometric computations:

distances, slopes, intersections

tangents & normals

foci, eccentricities, asymptotes

circle & conic geometry

Added construction helpers:

circle from 3 points

line from slope+point

section formula

foot of perpendicular

Provided plotting support (matplotlib) via plotting.py

Added full README.md, library structure, and package documentation