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src="https://pic.biss.click/image/c5457adc-214c-4a18-9aa6-43fbc0bfc2f4.webp" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="OpenGL-直线的扫描转换"></a></div><div class="recent-post-info"><a class="article-title" href="/posts/7207243b/" title="OpenGL-直线的扫描转换">OpenGL-直线的扫描转换</a><div class="article-meta-wrap"><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time datetime="2026-04-11T11:01:02.000Z" title="发表于 2026-04-11 19:01:02">2026-04-11</time></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/technology/">技术</a><i class="fas fa-angle-right article-meta-link"></i><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/technology/learning/">学习</a></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-comments"></i><a class="twikoo-count" href="/posts/7207243b/#post-comment"><i class="fa-solid fa-spinner fa-spin"></i></a><span class="article-meta-label"> 条评论</span></span></div><div class="content">这篇文章来介绍直线扫描转换算法 DDA数值微分线段算法算法简介数值微分法即DDA法(Digital Differential Analyzer)，是一种基于微分方程来生成直线的方法。在计算机图形学中，并没有线段的概念，而是一个个像素点组成了线段。 DDA法生成线段的步骤一般如下： 有了起始点（$x_1，y_1$）和终点（$x_n，y_n$）； $$\Delta x =|x_n-x_1|, \Delta y=|y_n-y_1|$$ 比较$\Delta x$和$\Delta y$的大小； steps=$\Delta x$和$\Delta y$中较大者； $$step_x=\frac{\Delta x}{steps}，step_y=\frac{\Delta y}{steps}$$ 算法实现DDA算法实现如下： 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061...</div></div></div><div class="recent-post-item"><div class="post_cover"><a href="/posts/437a5198/" title="OpenGL-基础程序"><img class="post-bg" src="https://pic.biss.click/image/2fcb9566-f7f6-4132-81cb-4cd646967519.webp" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="OpenGL-基础程序"></a></div><div class="recent-post-info"><a class="article-title" href="/posts/437a5198/" title="OpenGL-基础程序">OpenGL-基础程序</a><div class="article-meta-wrap"><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time datetime="2026-04-11T10:20:34.000Z" title="发表于 2026-04-11 18:20:34">2026-04-11</time></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/technology/">技术</a><i class="fas fa-angle-right article-meta-link"></i><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/technology/learning/">学习</a></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-comments"></i><a class="twikoo-count" href="/posts/437a5198/#post-comment"><i class="fa-solid fa-spinner fa-spin"></i></a><span class="article-meta-label"> 条评论</span></span></div><div class="content">代码展示我们先从基本的OpenGL程序开始吧，这是一个简单的OpenGL程序： 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354#include<GL/glut.h>using namespace std;// 回调函数void myDisplay(){ // 清除缓冲区 glClearColor(0.0, 0.0, 0.0, 0.0); glClear(GL_COLOR_BUFFER_BIT); // 正交模式 glMatrixMode(GL_PROJECTION); gluOrtho2D(0.0, 500.0, 0.0, 500.0); glColor4f(0.0, 1.0, 0.0, 0.0); glRectf(50.0, 50.0, 400.0, 400.0); // 划线 glColor3f(1.0, 1.0, 0.0); glBegin(GL_LINES); glVertex2f(50.0, 50....</div></div></div><div class="recent-post-item"><div class="post_cover"><a href="/posts/c4477b0c/" title="配置OpenGL环境"><img class="post-bg" src="https://pic.biss.click/image/d19b9e03-9442-4b85-94a0-a3780b9f4440.webp" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="配置OpenGL环境"></a></div><div class="recent-post-info"><a class="article-title" href="/posts/c4477b0c/" title="配置OpenGL环境">配置OpenGL环境</a><div class="article-meta-wrap"><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time datetime="2026-04-01T20:52:16.000Z" title="发表于 2026-04-02 04:52:16">2026-04-02</time></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/technology/">技术</a><i class="fas fa-angle-right article-meta-link"></i><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/technology/learning/">学习</a></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-comments"></i><a class="twikoo-count" href="/posts/c4477b0c/#post-comment"><i class="fa-solid fa-spinner fa-spin"></i></a><span class="article-meta-label"> 条评论</span></span></div><div class="content">最近要学计算机图形学，所以会用到OpenGL，配置环境有点繁琐，记录了下来。 安装Visual Studio现在我们先来安装Visual Studio：visual studio，下载后安装即可|在安装时选择“使用C++的桌面开发”，这样安装时就会安装C++的编译器了。 安装 Cmake这个可选，因为我们可以使用Visual Studio的编译器MSVC来编译项目。Cmake是一个开源的跨平台软件构建工具，它可以生成不同系统的构建文件，比如Makefile，Ninja，VS项目文件等等。我们可以下载Cmake：cmake，下载后安装即可。 安装GLFWOpenGL有许多工具，比如GLFW，GLEW等等，这里我们安装GLFW。 工具 类别 主要职责 特点 GLUT 窗口管理 + 工具库 创建窗口、处理鼠标键盘、提供内置渲染循环。 古老、简单。使用“固定管线”（老旧技术），适合教学。 GLFW 窗口管理库 创建窗口、处理输入、管理多个上下文。 现代、轻量。只管窗口和输入，不负责渲染逻辑，是目前的主流。 GLAD 配置/加载库 加载 OpenGL 函数指针...</div></div></div><div class="recent-post-item"><div class="recent-post-info no-cover"><a class="article-title" href="/posts/b559997d/" title="opencv应用-算术运算">opencv应用-算术运算</a><div class="article-meta-wrap"><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time datetime="2026-03-17T05:13:08.000Z" title="发表于 2026-03-17 13:13:08">2026-03-17</time></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/technology/">技术</a></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-comments"></i><a class="twikoo-count" href="/posts/b559997d/#post-comment"><i class="fa-solid fa-spinner fa-spin"></i></a><span class="article-meta-label"> 条评论</span></span></div><div class="content">opencv对图像的算数运算，感觉都大同小异，分为以下几种：加减乘除和位运算。 函数 功能 应用场景 cv2.bitwise_and() 按位与操作 掩码操作、图像分割 cv2.bitwise_or() 按位或操作 图像叠加 cv2.bitwise_not() 按位取反操作 图像反色 cv2.bitwise_xor() 按位异或操作 图像差异检测 因为感觉都差不多，所以只把加法运算代码搬过来 1234567891011121314151617181920212223242526272829303132333435363738394041// 加法#include <opencv2/opencv.hpp>#include <iostream>using namespace std;using namespace cv;int main(){ string path1 = "../img/2.jpg"; string path2 = "../img/3.jpg"; ...</div></div></div><div class="recent-post-item"><div class="recent-post-info no-cover"><a class="article-title" href="/posts/e8f95ead/" title="opencv应用-基础操作">opencv应用-基础操作</a><div class="article-meta-wrap"><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time datetime="2026-03-15T01:56:51.000Z" title="发表于 2026-03-15 09:56:51">2026-03-15</time></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/technology/">技术</a></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-comments"></i><a class="twikoo-count" href="/posts/e8f95ead/#post-comment"><i class="fa-solid fa-spinner fa-spin"></i></a><span class="article-meta-label"> 条评论</span></span></div><div class="content">这里用C++进行编程，发现菜鸟教程只有python的版本，那就记录一下。 图片读取与展示1234567891011121314// 读取图像#include<opencv2/opencv.hpp>#include<iostream>using namespace std;using namespace cv;int main(){ Mat src = imread("../img/1.png"); imshow("input",src); waitKey(0); destroyAllWindows(); return 0;} 图像基本操作读取像素需要用到三维向量数组Vect3b，这里需要注意的是，Opencv是BGR而不是我们常用的RGB。 123456789101112131415161718192021222324// 读取像素#include<opencv2/opencv.hpp>#include<iostream>using name...</div></div></div><div class="recent-post-item"><div class="post_cover"><a href="/posts/6e3332b/" title="配置opencv"><img class="post-bg" src="https://pic.biss.click/image/c177a2e2-63af-4582-98b6-e95726f6cdc5.webp" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="配置opencv"></a></div><div class="recent-post-info"><a class="article-title" href="/posts/6e3332b/" title="配置opencv">配置opencv</a><div class="article-meta-wrap"><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time datetime="2026-03-14T03:48:36.000Z" title="发表于 2026-03-14 11:48:36">2026-03-14</time></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/technology/">技术</a></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-comments"></i><a class="twikoo-count" href="/posts/6e3332b/#post-comment"><i class="fa-solid fa-spinner fa-spin"></i></a><span class="article-meta-label"> 条评论</span></span></div><div class="content">引言不知道为什么我们专业看起来与计算机八竿子打不着，竟然要学opencv，那就来记录一下吧！ Ubuntu 篇Ubuntu因为有完善的包管理体系，所以配环境相对简单。 先安装vscode，当然也可以不安装，只是个编辑器； 🪧引用站外地址，不保证站点的可用性和安全性 vscode Microsoft 到这里下载deb格式的软件包，然后dpkg安装即可。可以安装这些扩展： 接下来安装编译器 12345678910# 先更新软件包apt updateapt upgrade -y# 安装C/C++编译器apt install gcc g++# 安装opencvapt install -y mesa-utilsapt install -y libopencv-devapt install -y opencvapt install -y python3-opencv #Python opencv 然后就可以了。 Windows ...</div></div></div><div class="recent-post-item"><div class="post_cover"><a href="/posts/7baa41fc/" title="自建bitwarden服务"><img class="post-bg" src="https://pic.biss.click/image/deaddd0c-e808-45f3-8354-3c44b2b65167.webp" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="自建bitwarden服务"></a></div><div class="recent-post-info"><a class="article-title" href="/posts/7baa41fc/" title="自建bitwarden服务">自建bitwarden服务</a><div class="article-meta-wrap"><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time datetime="2026-02-25T03:09:23.000Z" title="发表于 2026-02-25 11:09:23">2026-02-25</time></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/technology/">技术</a></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-comments"></i><a class="twikoo-count" href="/posts/7baa41fc/#post-comment"><i class="fa-solid fa-spinner fa-spin"></i></a><span class="article-meta-label"> 条评论</span></span></div><div class="content">Bitwarden 是一款开源、端到端加密的密码管理器，支持 Windows、macOS、Linux、Android、iOS 以及几乎所有主流浏览器。它可以帮你： 安全存储密码、银行卡、笔记、密钥等敏感信息 全设备自动同步 一键自动填充账号密码 生成高强度随机密码 检测弱密码、重复密码、泄露密码 之前一直使用浏览器自带的密码管理器，跨平台不太好用，所以自建一个Bitwarden服务器。但是我们一般用Vaultwarden，占用更小，有一些Bitwarden的商业功能。 123456789101112services: vaultwarden: image: vaultwarden/server:latest container_name: vaultwarden restart: unless-stopped environment: DOMAIN: "https://vw.domain.tld" #更改成自己的域名 volumes: - ./vw-data/:/data/ ports: ...</div></div></div><div class="recent-post-item"><div class="post_cover"><a href="/posts/56f57c0b/" title="自建renovate-bot"><img class="post-bg" src="https://pic.biss.click/image/fca16741-64fa-495b-aa5e-a2ef077461ef.webp" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="自建renovate-bot"></a></div><div class="recent-post-info"><a class="article-title" href="/posts/56f57c0b/" title="自建renovate-bot">自建renovate-bot</a><div class="article-meta-wrap"><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time datetime="2026-02-23T02:49:17.000Z" title="发表于 2026-02-23 10:49:17">2026-02-23</time></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/technology/">技术</a></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-comments"></i><a class="twikoo-count" href="/posts/56f57c0b/#post-comment"><i class="fa-solid fa-spinner fa-spin"></i></a><span class="article-meta-label"> 条评论</span></span></div><div class="content">最近自建了gitea，所以把renovatebot也自建一下，毕竟renovatebot可以自动更新依赖，但是它不对自建git提供服务。这是docker compose文件： 123456789101112services: renovate: image: renovate/renovate:latest environment: RENOVATE_PLATFORM: 'gitea' RENOVATE_ENDPOINT: '你的git api地址' RENOVATE_TOKEN: 'token' RENOVATE_AUTODISCOVER: 'true' RENOVATE_GIT_AUTHOR: Renovate Bot <bot@biss.click> RENOVATE_USERNAME: renovate-bot volumes: - ./renovate-data:/tmp/renovate ...</div></div></div><div class="recent-post-item"><div class="post_cover"><a href="/posts/d2c8521/" title="将博客仓库转移到gitea"><img class="post-bg" src="https://pic.biss.click/image/f9767ecf-b8de-461b-8e62-8f7444297ea6.webp" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="将博客仓库转移到gitea"></a></div><div class="recent-post-info"><a class="article-title" href="/posts/d2c8521/" title="将博客仓库转移到gitea">将博客仓库转移到gitea</a><div class="article-meta-wrap"><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time datetime="2026-02-07T04:30:39.000Z" title="发表于 2026-02-07 12:30:39">2026-02-07</time></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/technology/">技术</a></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-comments"></i><a class="twikoo-count" href="/posts/d2c8521/#post-comment"><i class="fa-solid fa-spinner fa-spin"></i></a><span class="article-meta-label"> 条评论</span></span></div><div class="content">在上一篇文章中已经完成了gitea的安装那么博客源码迁移倒是没问题，直接git remote add origin就行，但是action文件就有些变更。这是我修改的action文件： 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556name: 自动部署on: push: branches: - master release: types: - published workflow_dispatch:env: TZ: Asia/Shanghaijobs: deploy: runs-on: ubuntu-latest steps: - name: 检查分支 uses: actions/checkout@v4 with: ref: master - name: 缓存项目 npm 包 id: cache-node-modul...</div></div></div><div class="recent-post-item"><div class="post_cover"><a href="/posts/34725d47/" title="安装gitea"><img class="post-bg" src="https://pic.biss.click/image/961bc881-cb0a-4ab7-ace5-9990e71c30a0.webp" onerror="this.onerror=null;this.src='/img/404.jpg'" alt="安装gitea"></a></div><div class="recent-post-info"><a class="article-title" href="/posts/34725d47/" title="安装gitea">安装gitea</a><div class="article-meta-wrap"><span class="post-meta-date"><i class="far fa-calendar-alt"></i><span class="article-meta-label">发表于</span><time datetime="2026-02-06T22:32:04.000Z" title="发表于 2026-02-07 06:32:04">2026-02-07</time></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-inbox"></i><a class="article-meta__categories" href="/categories/technology/">技术</a></span><span class="article-meta"><span class="article-meta-separator">|</span><i class="fas fa-comments"></i><a class="twikoo-count" href="/posts/34725d47/#post-comment"><i class="fa-solid fa-spinner fa-spin"></i></a><span class="article-meta-label"> 条评论</span></span></div><div class="content">今天想把网站的源码转移到自建git仓，所以先来安装gitea吧（gitlab过于庞大，服务器配置不够）PS:我的服务器为2C2G 安装gitea这里用二进制文件安装 获取二进制文件：123wget -O gitea https://dl.gitea.com/gitea/1.25.4/gitea-1.25.4-linux-amd64chmod +x giteacp gitea /usr/local/bin/gitea 创建用户这一步不是必须的，但是推荐这样，用root用户很容易出问题。 1234567891011121314151617181920# On Ubuntu/Debian:adduser \ --system \ --shell /bin/bash \ --gecos 'Git Version Control' \ --group \ --disabled-password \ --home /home/git \ git# On Fedora/RHEL/CentOS:groupadd --system gitaddus...</div></div></div></div><nav id="pagination"><div class="pagination"><span class="page-number current">1</span><a class="page-number" href="/categories/technology/page/2/">2</a><a class="extend next" rel="next" href="/categories/technology/page/2/"><i class="fas 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var item_html = '<div class="recent-post-item" style="height: auto;width: 100%"><div class="blog-slider swiper-container-fade swiper-container-horizontal" id="swiper_container"><div class="blog-slider__wrp swiper-wrapper" style="transition-duration: 0ms;"><div class="blog-slider__item swiper-slide" style="background:url(https://pic.biss.click/image/fca16741-64fa-495b-aa5e-a2ef077461ef.webp);border-radius:12px;opacity: 1; transform: translate3d(0px, 0px, 0px); transition-duration: 0ms;"><div class="blog-slider__content"><span class="blog-slider__code">2026-02-23</span><a class="blog-slider__title" onclick="pjax.loadUrl("posts/56f57c0b/");" href="javascript:void(0);" alt="">自建renovate-bot</a><div class="blog-slider__text">还不知道怎么描述哦</div></div></div><div class="blog-slider__item swiper-slide" style="background:url(https://pic.biss.click/image/63a5c345-cb40-4e92-bc7b-7dc4daaf5b74.webp);border-radius:12px;opacity: 1; transform: translate3d(0px, 0px, 0px); transition-duration: 0ms;"><div class="blog-slider__content"><span class="blog-slider__code">2025-09-28</span><a class="blog-slider__title" onclick="pjax.loadUrl("posts/b57500e9/");" href="javascript:void(0);" alt="">在Openwrt上安装AdguardHome</a><div class="blog-slider__text">还不知道怎么描述哦</div></div></div><div class="blog-slider__item swiper-slide" style="background:url(https://pic.biss.click/image/961bc881-cb0a-4ab7-ace5-9990e71c30a0.webp);border-radius:12px;opacity: 1; transform: translate3d(0px, 0px, 0px); transition-duration: 0ms;"><div class="blog-slider__content"><span class="blog-slider__code">2026-02-07</span><a class="blog-slider__title" onclick="pjax.loadUrl("posts/34725d47/");" href="javascript:void(0);" alt="">安装gitea</a><div class="blog-slider__text">还不知道怎么描述哦</div></div></div></div><div class="blog-slider__pagination swiper-pagination-clickable swiper-pagination-bullets"></div><div class="swiper-button-prev"></div><div class="swiper-button-next"></div></div></div>';
|
||
console.log('已挂载butterfly_swiper')
|
||
parent_div_git.insertAdjacentHTML("afterbegin",item_html)
|
||
}
|
||
var elist = 'undefined'.split(',');
|
||
var cpage = location.pathname;
|
||
var epage = '/';
|
||
var flag = 0;
|
||
|
||
for (var i=0;i<elist.length;i++){
|
||
if (cpage.includes(elist[i])){
|
||
flag++;
|
||
}
|
||
}
|
||
|
||
if ((epage ==='all')&&(flag == 0)){
|
||
butterfly_swiper_injector_config();
|
||
}
|
||
else if (epage === cpage){
|
||
butterfly_swiper_injector_config();
|
||
}
|
||
</script><script defer src="https://cdnjs.cloudflare.com/ajax/libs/Swiper/5.4.5/js/swiper.min.js"></script><script defer data-pjax src="https://npm.elemecdn.com/hexo-butterfly-swiper-lyx/lib/swiper_init.js"></script><!-- hexo injector body_end end --></body></html> |