JSPM – @twaves/node-image-concat@0.0.1

Package Exports

@twaves/node-image-concat
@twaves/node-image-concat/index.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (@twaves/node-image-concat) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Install

$ npm install @twaves/node-image-concat --save

Usage

const ImagesConcat = require("@twaves/node-image-concat");

const base64Image = `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`;

const base64Data = await ImagesConcat([base64Image, base64Image]);

// 将Base64字符串转换为缓冲区
const bitmap = Buffer.from(
  base64Data?.replace("data:image/jpeg;base64,", ""),
  "base64"
);

// 写入文件到指定路径
fs.writeFileSync(path.resolve("/Users", `test.jpg`), bitmap);

API

ImagesConcat(images[, options])

images Array of (Base64 Images) - List of images to concat.
options Object (optional)
- direction Boolean - Direction of the merged image. If this value is true, the images will be merged vertically (column). Otherwise, the images will be merged horizontally (row). Default is false.
- color Number | String (hex) - Default background color represented by RGBA hex value. Default is 0x00000000.
- align String - Aligning of given images. If the images are not all the same size, images will be sorted to largest image. Possible values are start, center and end. Default is start.
- offset Number - Offset in pixels between each image. Default is 0.
- margin (Number | String | Object) - Margin of the result image. If Number or String is passed, it will be considered as standard css shorthand properties (e.g. '40 40 0 10'). An Object entry can have following options:
  - top Number (optional) - Margin on top side of result image. Default is 0.
  - right Number (optional) - Margin on right side of result image. Default is 0.
  - bottom Number (optional) - Margin on bottom side of result image. Default is 0.
  - left Number (optional) - Margin on left side of result image. Default is 0.
- dWidth Number - Set Image Width. Default is 0.
- dHeight Number - Set Image Height. Default is 0.

Returns a Promise that resolves to the merged Base64 Image.