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    # Three.js實現ROS虛實環境監控系統 / 邱文淇 (Ivan), 曾哲瀚 (小白) {%hackmd @ModernWeb/SyA2U6SmT %} > 共筆請從這開始 ROS * 開源機器人開發軟體系統框架 * 模組化特性 Stacks -> Packages -> Nodes * Node 間的通訊機制 Topic、Serivce、Actionlib Three.js * 基於 WebGL 開發,進行了封裝和簡化 * 3D 繪圖 Library * 簡易製作互動式 3D 圖形 * 低學習門檻 利用 Figma 設計虛實整合介面 Mockup Three.js 基本概念 (3D畫面) - 場景(Scene) - 相機(Camera) - 物體(Object) - 光源 (Light):場景中的光線來源,決定了物體的明卻和陰影效果, - 渲染器(Renderer) 場景 先用場景(Scene)創立了3D虛擬空間,使用相機(camera)就像張開了眼睛,創造了object後,再把物體(object)放進虛擬空間,然後再加入光源(light),可讓顯示更加立體跟真實,最後透過渲染器(Renderer)可以看到實際畫面。 註:近平面距離越小越好、遠平面距離越大越好 相機 new THREE.PerspectiveCamera(視場角度,畫面長寬比,近平面距離,遠平面距離) 如何做到虛實同步: 六軸操作 / 動作執行 => 改變六軸角度 => 虛擬手臂 / 實體手臂 WebRTC bind IP cam - Web webrtc-streamer -協定 以Rosbridge 與 ROS cluster 整合 換人: PROS API JSON input 轉ROS格式 C# SDK to ROS node 結語: - ROS與Three.js的基礎概念 - 數位雙生(PROS DigitalTwins)系統如何整合虛擬與實體介面 - 雲端操作介面, PROS API 如何與地端Web Cam完美結合 - Docker 化的部署介面 > 有用 Gitlab 也有用 Jenkins > 他們的東西沒有很精緻 > 不過確實系統設計和各方面的思考蠻實際的 --- > 聊天室 > 講者的語速好快 > 感覺到講者的緊張 > > 介面的綠色和紅色很刺眼= = > 同意XD 應該不是Cyberpunk > 但不能要求太多吧 看得出來應該沒有UI > 換人之後 > 語速 -50% > 語速快但是台風還是很穩啦 給讚 > 攝影師好搶戲 > 我記得之前參加研討會的時候 > 攝影師只會側拍 > 不會跑到講台上 > 攝影師今天都超忙DER > 真的~ 直接在台上XD 好想從小學生的服務開始給他們的遊戲調教 女兒送上來 XD 徵才 19歲?!台風好穩喔

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