https://github.com/scenent/gp

graph parser for C++.
https://github.com/scenent/gp

cpp graph math parser

Last synced: 5 days ago
JSON representation

graph parser for C++.

• Host: GitHub
• URL: https://github.com/scenent/gp
• Owner: scenent
• License: mit
• Created: 2024-08-22T14:02:30.000Z (5 months ago)
• Default Branch: main
• Last Pushed: 2024-08-22T14:21:09.000Z (5 months ago)
• Last Synced: 2024-11-15T02:29:18.989Z (2 months ago)
• Topics: cpp, graph, math, parser
• Language: C++
• Homepage:
• Size: 85 KB
• Stars: 0
• Watchers: 0
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# gp

graph parser for C++.  

just input expression about x.  

then you'll get list of two dimensional vector.  

## Usage

```cpp

int main(const _argc, const char * const * const _argv) {

    gp::GraphParser _gp{};

    // gp::GraphParser::exec(expression : str, xBegin : real, xEnd : real, xStep : real, varMap : map)

    std::vector _vertices = _gp.exec("x + 1", 0.0f, 100.0f, 1.0f, {});

    for (const auto& _vertex : _vertices) {

      std::cout << _vertex.x << ", " << _vertex.y << "\n";

    }

}

```

## Supporting Operators

- Add (+)

- Sub (-)

- Mul (*)

- Div (/)

- Mod (%)

- Pow (^)

## Builtin Functions

- sin(x)

- cos(x)

- tan(x)

- asin(x)

- acos(x)

- atan(x)

- log(x)

- exp(x)

- sqrt(x)

- abs(x)

## Screenshot

**(renderer uses y-inverted coordinate system)**

| Sine Function | Quadratic Function |

| ---- | ---- |

| `y = sin(x / 10.0) * 50.0 + 100` | `y = (x / 10.0) ^ 2 + 100` |

| ![sine](screenshot_sine.png) | ![quadratic](screenshot_quadratic.png) |

## Renderer

[olcPixelGameEngine](https://github.com/OneLoneCoder/olcPixelGameEngine) by Javidx9