🔤 符号转位图（ASCII / Braille 画 → BMP）Convert Symbols to a Bitmap
把 ASCII 画、方块符号（█ ▓ ▒ ░）或盲文点阵（Braille）转成位图：每个字符对应一个像素格的亮度，盲文每个字符展开为 2×4 点。可设每格大小、前景/背景色和透明背景，导出 24 位 BMP 或 PNG。适合把终端 ASCII art、Unicode 点阵还原成图片，全部在浏览器本地完成。Turn ASCII art, block symbols (█ ▓ ▒ ░) or Braille patterns into a bitmap: each character becomes one cell of brightness, and each Braille character expands to a 2×4 dot grid. Set cell size, foreground/background colours and optional transparency, then export a 24-bit BMP or PNG. Handy for turning terminal ASCII art or Unicode dot patterns back into pictures; everything runs locally.
使用说明与常见问题How-to & FAQ
「符号转位图（ASCII / Braille 画 → BMP）」是什么？What is the Convert Symbols to a Bitmap tool?
把 ASCII 画、方块符号（█ ▓ ▒ ░）或盲文点阵（Braille）转成位图：每个字符对应一个像素格的亮度，盲文每个字符展开为 2×4 点。可设每格大小、前景/背景色和透明背景，导出 24 位 BMP 或 PNG。适合把终端 ASCII art、Unicode 点阵还原成图片，全部在浏览器本地完成。Turn ASCII art, block symbols (█ ▓ ▒ ░) or Braille patterns into a bitmap: each character becomes one cell of brightness, and each Braille character expands to a 2×4 dot grid. Set cell size, foreground/background colours and optional transparency, then export a 24-bit BMP or PNG. Handy for turning terminal ASCII art or Unicode dot patterns back into pictures; everything runs locally.
如何使用「符号转位图（ASCII / Braille 画 → BMP）」？How do I use the Convert Symbols to a Bitmap tool?
在「符号转位图（ASCII / Braille 画 → BMP）」中，按需设置「每格大小 (px)」、「前景色」、「背景色」、「格式」等选项，然后点击「下载」按钮即可。In the Convert Symbols to a Bitmap: Set "Cell size (px)", "Foreground", "Background", "Format", then click "Download".
支持哪些符号？Which symbols are supported?
常用 ASCII 画字符（空格、. : - = + * o O # % @）按密度映射为灰度；Unicode 方块 █ ▓ ▒ ░ 和四分之一块也支持；盲文（U+2800–U+28FF）每个字符展开成 2×4 的点阵，适合把盲文艺术还原成像素图。Common ASCII-art characters (space, . : - = + * o O # % @) map to greyscale by density; Unicode blocks █ ▓ ▒ ░ and quarter blocks work too; Braille (U+2800–U+28FF) expands each character to a 2×4 dot grid — handy for turning Braille art back into pixels.
透明背景什么时候可用？When is transparent background available?
仅 PNG 支持透明；导出 BMP 时透明选项会禁用，透明格填成背景色。Only PNG supports transparency; for BMP the option is disabled and transparent cells use the background colour.
有哪些选项可以调整？What options can I adjust?
「符号转位图（ASCII / Braille 画 → BMP）」的设置：「每格大小 (px)」默认 8，范围 1–64；「前景色」默认 #111111；「背景色」默认 #ffffff；「格式」可选 BMP、PNG（默认 BMP）；可勾选：「透明背景（仅 PNG）」。改动任一选项后结果会按新设置重新生成。Settings in the Convert Symbols to a Bitmap — "Cell size (px)" default 8, range 1–64; "Foreground" default #111111; "Background" default #ffffff; "Format": BMP, PNG (default BMP); tick boxes: "Transparent background (PNG only)". Changing any option regenerates the result with the new setting.
「符号转位图（ASCII / Braille 画 → BMP）」免费吗？需要注册吗？Is the Convert Symbols to a Bitmap free? Do I need an account?
「符号转位图（ASCII / Braille 画 → BMP）」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Convert Symbols to a Bitmap is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.