Tag:cube

  • 65000 star! Necessary tools for developing 3D web projects

    Time:2021-8-29

    [introduction]:Three.jsIs an easy to use lightweight   JavaScript API library is mainly used for 3D graphic display such as data visualization and VR demonstration. It was acquired at GitHub65000 star。 brief introduction Three.jsIt can create various 3D graphics, points, lines, text, geometry, three-dimensional text, etc., and set light and shadow effects, texture effects, animation effects, […]

  • Teach you to add sky box to the scene, super simple!

    Time:2021-8-12

    stayDigital twin visualizationIn the scene, if you want to change the scene sky, such as day, night, haze effect, etc., you can consider using sky box technology at this time. You can add a realistic sky to the digital twin visualization scene to make the world more beautiful and real.Sky boxIt is a cube that […]

  • What is kylin? It’s fast to check the data

    Time:2021-7-23

    preface Wechat search【Java3y】Paying attention to this man with dreams and praising attention is my greatest support! The text has been included in my GitHub:https://github.com/ZhongFuCheng3y/3y, there are more than 300 original articles, recently in seriesInterviews and projectsSeries! I’d like to start with you todaykylin(kylin). Due to work needs, some time agokylinNow let’s take notes. (my words […]

  • Start with Rubik’s Cube

    Time:2021-3-23

    Foreword: Recently I saw the cosine answer on Zhihu about how to learn web security, emphasizing data flow, input and output, through theinputSubmit “special data” indata streamIf a layer is not handled well, theoutputAt the same time, there will be security problems in the corresponding layer. Deep sense of security is equivalent to reverse thinking, […]

  • [caption] surface area of three-dimensional body leetcode

    Time:2021-3-5

    Title: surface area of three dimensional body   On the ﹣ n * n ﹣ grid, we put some ﹣ 1 * 1 * 1 ﹣ cubes. Each value ﹣ v = grid [i] [J] indicates that ﹣ V cubes are stacked on the corresponding cells (I, J). Please return to the surface area of […]

  • Front end graphics: from introduction to abandonment 003 3D world

    Time:2020-10-29

    From this article, we will officially enter the 3D world of webgl The contents of this article include: Webgl what is it doing? How to draw a cube? How to become a cube with depth? Cube is leaving home! Webgl what is it doing? First of all, we need to know that the world of […]

  • Thingjs encapsulates this skybox technology, realizing less than 20 lines of code!

    Time:2020-10-14

    Sky box is the background applied to the scene to display the texture of sky, space or enclosed structure. Thingjs encapsulates this skybox technology, realizing less than 20 lines of code! After referencing the map component script, the earth camera parameters will change, and the sky box needs to be corrected. Why is it the […]

  • Hanjiawei reading notes Chapter 5 (data cube technology) – some algorithms

    Time:2020-9-29

    Reading notes of hanjiawai: Chapter 5 (data cube technology) BUC 1. BUC (bottom up construction) concept Calculation of iceberg cube from vertex cube downAlgorithm for computing sparse iceberg cubePruning based on a priori property###2. Algorithm calculation Cases a (A1, A2, A3), B (B1, B2), C (C1, C2)   (a1,,);(a1,b1,*);(a1,b1,c1);(a1,b1,c2)…… This process uses a priori property to […]

  • Reading notes of hanjiawai: Chapter 5 (data cube technology)

    Time:2020-9-28

    BUC 1. BUC (bottom up construction) concept Calculation of iceberg cube from vertex cube downAlgorithm for computing sparse iceberg cubePruning based on a priori property###2. Algorithm calculation Cases a (A1, A2, A3), B (B1, B2), C (C1, C2)   (a1,,);(a1,b1,*);(a1,b1,c1);(a1,b1,c2)…… This process uses a priori property to save time. If (A1, B1, *) does not meet […]

  • Using mobile phone posture to control CSS cuboid posture in web page

    Time:2020-4-15

    thinking The demo is divided into client, control and server. The client is acss3Write a three-dimensional box, only acceptwebsocketData.Use of control enddeviceorientationEvent to get the mobile attitude and pass thewebsocketSend attitude data. Server is a usewsLibrarywebsocketServer, the port I listen on here is5656。 attach I wrote two articles before about usingCSS making 3D cubeandUsing websocket […]

  • [wandering with canvas (14)] three.js generation method of concave relief model

    Time:2019-12-15

    Catalog Scheme 1: threebsp.js or threecsg.js extension library Scheme 2: plane hollow model stretching 3. Scheme 3: output model file after Cinema4D modeling The sample code is hosted at: http://www.github.com/dashkeywords/blogs Address of blog Park: original blog directory of “big history lives in front end” Huawei cloud community address: [the upgrade guide for front-end fighting] Relief […]

  • 7 common data annotation tools

    Time:2019-12-14

    Sharp tools make good work. Annotation tool is the foundation of data annotation industry, and an easy-to-use annotation tool is the key to improve annotation efficiency and output high-quality annotation data. Commonly used data annotation tools are as follows: 2D box, semantic segmentation, polygon segmentation, point annotation, line annotation, video annotation, 3D cube annotation, etc. […]