Tag:degrees

  • Trigonometric function, slow in and slow out animation and C # implementation

    Time:2021-5-5

    You can often see the animation effect of slow in and slow out in daily life, such as: 1. Scroll bar with slow in and slow out effect: 2. Breathing lamp with slow in and slow out effect: Like the above effect, it uses the knowledge related to trigonometric function. Next, we will explain how […]

  • Chapter 3 bjrobot angular velocity correction

    Time:2020-9-27

    1、The carLay flatOn the floor, open a terminal with the virtual machine in the data ssh In the past, the main control terminal startedroslaunch znjrobot bringup.launch 。   2、Open another terminal ssh Past main control terminal,Start the correct angular velocity commandrosrun znjrobot_nav calibrate_angular.py   3、Open aindividualTerminal, direct operation rosrun rviz rviz   4、Click after full screen File,clickOpen Config: 5、Find the path~/catkin_ws/src/znjrobot_project/znjrobot/rviz/ Ofodometry.rviz […]

  • Comparison of vector index algorithm hnsw and NSG

    Time:2020-9-4

    With the continuous development of machine learning and deep neural network, data vectorization is ubiquitous. For massive vector data search, both industry and academia have done a lot of research. This paper mainly introduces two vector search algorithms based on neighbor graph, and compares their applicable scenarios. Here we have to mention an academic corresponding […]

  • Using blink SQL + udaf to realize difference aggregation calculation

    Time:2020-8-20

    According to the real business needs of a power grid company, the difference aggregation calculation on real-time stream is realized by blink SQL + udaf. Through this case, readers can be familiar with udaf writing, and understand the method calling relationship and order in udaf.Thank the @ commander for his guidance in the implementation process. […]