# function-plotter

**Repository Path**: dachiver/function-plotter

## Basic Information

- **Project Name**: function-plotter
- **Description**: Dachiver 函数图像绘制软件:2D/3D 图像 + SymPy 精确符号分析(在线版 + Windows 桌面版)
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2026-07-27
- **Last Updated**: 2026-07-28

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# Dachiver

[中文 README](README.md) | [Gitee 镜像(国内访问更快)](https://gitee.com/dachiver/function-plotter)

Dachiver is a free function-plotting application with a Chinese UI: 2D/3D graphs, implicit curves, parametric and polar plots, backed by a SymPy symbolic engine that returns **exact** analytic results (derivatives, zeros, extrema, asymptotes, integrals, Taylor expansions…).

![Welcome](docs/images/screenshot-welcome.png)
![3D view](docs/images/screenshot-3d.png)

## Get it

| | |
| --- | --- |
| Online (browser) | <https://funcplot-d2gzxg4hud9a679dd-1459286120.tcloudbaseapp.com/> — no install; everything except symbolic analysis/CAS |
| Windows desktop | [Releases](../../releases) — `Dachiver Setup *.exe`, full features with bundled Python + SymPy |

## Features

- **Plotting**: explicit & implicit curves, parametric, polar, inequality regions, scatter; 3D explicit & implicit surfaces
- **Symbolic analysis** (desktop): derivatives, zeros, extrema, asymptotes, integrals, arc length, solids of revolution, Taylor series, tangent lines/planes — exact symbolic results
- **Tools**: slope fields & numerical ODE solutions, vector-field phase portraits, intersections, region-of-interest select (zoom/integrate/fit), statistical distributions
- **Data**: CSV import, linear/quadratic/nonlinear (Levenberg–Marquardt) fitting, histograms, image digitizing
- **Export**: PNG / SVG / PDF / self-contained HTML / Python (matplotlib) script / WebM / GIF / frame sequences, plus shareable links
- **Misc**: dark & light themes, command palette (Ctrl+K), built-in manual (F1), undo/redo, workspace save & load

## Develop

```bash
npm install
node scripts/fetch-python.mjs   # bundled Python for the symbolic engine (desktop only)
npm start                       # run the desktop app
npm test                        # logic tests
```

## Build & release

```bash
npm run dist                    # Windows installer (electron-builder)
node scripts/make-web.mjs       # static online build into web-dist/
```

See [docs/打包说明.md](docs/打包说明.md) and [docs/发布说明.md](docs/发布说明.md) (Chinese) for the full pipeline.

## Tech stack

Electron with native ES modules (no framework); [KaTeX](https://katex.org/), [mathjs](https://mathjs.org/), [Three.js](https://threejs.org/) in the renderer; symbolic math via embedded Python running [SymPy](https://www.sympy.org/). License: MIT.