Mtf.Drawing 1.0.9

Mtf.Drawing

Mtf.Drawing is a modern, C#-based 2D geometry and rendering library designed to simplify the mathematical manipulation and GDI+ rendering of shapes.

The project strictly separates the geometric definition of shapes (data and logic) from their physical display (rendering), ensuring the code remains clean, testable, and highly maintainable.

📦 Key Features

• Geometric Shapes (Math/Geometry): CircleF, LineF, RectF, OrientedRectF, PolylineF, TextLayout.
• Spatial Transformations: Support for moving (Move), scaling (Resize), and rotating (Rotate) via the IShape interface.
• Collision Detection: Built-in Contains and Intersects methods for shapes.
• GDI+ Rendering: Dedicated Primitive classes (CirclePrimitive, RectanglePrimitive, LinePrimitive, etc.) handle drawing graphics onto a Graphics canvas.
• Screen Sampling: A specialized InverseRectanglePrimitive for color inversion utilizing the Win32 API.

🏗️ Architecture

The library is structured into three main namespaces:

1. Mtf.Drawing.Interfaces

Contains the foundational interfaces that provide the building blocks of the system:

• IShape: The core definition of geometric shapes (requiring a center point, move, rotate, resize, and containment checks).
• IPrimitive: The base for all renderable objects, enforcing the implementation of DrawOnGraphics(Graphics g, Color color).

2. Mtf.Drawing.Geometry

A collection of immutable (or functionally modifiable) readonly record struct and class types. These classes contain no drawing logic, only pure mathematics.

• They utilize the GeometryMath static helper class for complex calculations (e.g., rotating points).

3. Mtf.Drawing.Render

These classes (e.g., CirclePrimitive, TextPrimitive) bridge the gap between in-memory geometry and visual output, binding the data to the System.Drawing.Graphics object.

🚀 Usage Example

Creating and Transforming Geometry

using Mtf.Drawing.Geometry;
using System.Drawing;

// Create a circle
var circle = new CircleF(new PointF(10, 10), 5);

// Move and scale the shape
var movedCircle = circle.Move(15, 20);
var scaledCircle = movedCircle.Resize(2.0f);

// Collision detection
bool isHit = scaledCircle.Contains(new PointF(25, 30));