WordCloud
Word cloud (tag cloud or wordle) is a novelty visual representation of text data. The importance of each word is shown with font size or color. Our generator has the following highlights:
- Flexible Any mask, any color, any angle, adjustable filling rate. You can specify the initial position of some words. Or you can pin some words and adjust others, etc.
- Fast 100% in Julia and efficient implementation based on Quadtree & gradient optimization. The advantage is more obvious when generating large images.
- Exact Words with the same weight have the exact same size. The algorithm will never scale the word to fit the blank.
run showexample(:juliadoc) to see how to generate the banner
Installation
import Pkg; Pkg.add("WordCloud")
Basic Usage
using WordCloud
words = "天地玄黄宇宙洪荒日月盈昃辰宿列张寒来暑往秋收冬藏闰余成岁律吕调阳云腾致雨露结为霜金生丽水玉出昆冈剑号巨阙珠称夜光果珍李柰菜重芥姜海咸河淡鳞潜羽翔龙师火帝鸟官人皇始制文字乃服衣裳推位让国有虞陶唐吊民伐罪周发殷汤坐朝问道垂拱平章"
words = [string(c) for c in words]
weights = rand(length(words)) .^ 2 .* 100 .+ 30
wc = wordcloud(words, weights)
generate!(wc)
paint(wc, "qianziwen.svg")
Run the command runexample(:qianziwen) or showexample(:qianziwen) to get the result.
More Complex Usage
using WordCloud
wc = wordcloud(
processtext(open(pkgdir(WordCloud)*"/res/alice.txt"), stopwords=WordCloud.stopwords_en ∪ ["said"]),
mask = loadmask(pkgdir(WordCloud)*"/res/alice_mask.png", color="#faeef8"),
colors = :Set1_5,
angles = (0, 90),
fillingrate = 0.7) |> generate!
paint(wc, "alice.png", ratio=0.5, background=outline(wc.mask, color="purple", linewidth=1))
Run the command runexample(:alice) or showexample(:alice) to get the result.
More Examples
Training animation
Training animation
Run the command runexample(:animation) or showexample(:animation) to get the result.
Specifying the style of a particular word
Speciying the style of a particular word
Run the command runexample(:specifiedstyle) or showexample(:specifiedstyle) to get the result.
Comparison
Comparison of Obama's and Trump's inaugural address
Run the command runexample(:compare) or showexample(:compare) to get the result.
The variable WordCloud.examples holds all available examples.See more examples
- 排序 & 预放置
- 基于四叉树碰撞检测
- 根据局部灰度梯度位置调整（训练迭代）
- 引入动量加速训练
- 分代调整以优化性能
- 定位树批量碰撞检测（≈O(n)）
- LRU优化性能
- 控制字体大小和填充密度的策略
- 重新放置和缩放的策略
- 文字颜色和方向
- 并行计算
linux添加中文字体
mv wqy-microhei.ttc ~/.fonts
fc-cache -vf
配置ffmpeg环境
add /path/to/ffmpeg-4.2.1/lib to ENV["LD_LIBRARY_PATH"]
add /path/to/ffmpeg-4.2.1/bin to ENV["PATH"]