Tag:trajectory

  • API interface for inquiry of express bill number – Postal Express

    Time:2020-11-10

    Today we talk about how to use the interface provided by express bird to query the logistics track of postal express. Before explanation, let’s take a look at the actual display effect after the interface is completed The following is a screenshot of the product application and the track information obtained by calling the express […]

  • JavaScript animation example: fireworks bloom to welcome the new year

    Time:2020-10-16

    First write an animation effect of fireworks bloom. When setting off fireworks, a fireworks can be divided into two stages: (1) the fireworks rise into the air; (2) the fireworks explode into pieces, and the exploded fragments slowly dissipate. Two object classes are abstracted: firework and particle. Firework is used to represent a fireworks object, […]

  • Canvas track playback

    Time:2020-10-12

    Recently, I need to implement a track playback function. I have no experience in this field. After searching the Internet, I only found that this article mentioned – canvas track playback. It collects track points first and then plays back. My requirements are relatively simple. Track points are provided in the background. I only need […]

  • The past and present life of captcha: from text recognition to insensitive verification

    Time:2020-10-9

    On September 24, 2017, on the first day of pre registration for the national postgraduate entrance examination, a senior female student of Chengdu University, when registering online, actually appeared a verification code with the words “don’t test”, and a line of red letter was displayed on the verification code: the user name or password you […]

  • Waymo – automatic driving long tail challenge (2019)

    Time:2020-9-30

    Although waymo has accumulated more than 10 million miles on open roads, waymo’s engineers still find that there are endless new autonomous driving scenarios to be solved. 1. Examples of long tail scenarios for autonomous driving Scene oneA cyclist holds a stop sign sign sign in his hand. We don’t know when it’s going to […]

  • Baishi express bill number query interface API

    Time:2020-9-19

    How to use the interface provided by express bird to query the logistics track of Baishi express. Before explanation, let’s take a look at the actual display effect after the interface is completed The following is a screenshot of the product application and the track information obtained by calling the express bird interface:In fact, the […]

  • Vue + gaude map to realize track playback and play progress bar / multiple / time

    Time:2020-8-13

    Demand:1: Track playback: play, pause, resume2: Progress bar, track playback, progress bar should also play, track stop playing, progress bar should be suspended.3: Multiple: not playing selection multiple, playing selection multiple, pause selection multiple.4: Play time In the Gaode API example, only the simplest play, pause and continue to play is required.Therefore, it is necessary […]

  • Baishi express bill No. query interface API

    Time:2020-4-14

    How to use the interface provided by express bird to query the logistics track of Baishi express. Before the explanation, let’s take a look at the actual display effect after the interface is completed The following is the screenshot of the product application and the track information obtained by calling the express bird interface:In fact, […]

  • 3D display of electronic fence using H5 and webgl Technology

    Time:2020-2-26

    Preface The promotion of modern industrialization greatly accelerates the modernization process, but also brings the corresponding security risks. In the traditional visual monitoring field, it is generally based on the front-end technology of Web SCADA to realize 2D visual monitoring. This system uses the HT for web product of Hightop to construct lightweight 3D visual […]

  • Decoding of Python 3 slider verification code

    Time:2019-12-7

    There are two ways to crack the slider verification code: Obtain a complete background image and a gap image. Compare the two images one by one on the pixels to find out the different coordinates. Get a picture with a gap and a small picture that needs to be verified. Two pictures are bipolarized and […]

  • Android Custom View to Realize Adjustable Trajectory on Vehicle

    Time:2019-9-10

    In this paper, we share the specific code of Android customized view to complete the vehicle adjustable trajectory for your reference. The details are as follows. Colleagues do the view, take it over for a record. /** * */ package com.text.myviewdemo.view; import org.apache.http.conn.routing.RouteInfo.LayerType; import android.content.Context; import android.graphics.Canvas; import android.graphics.Color; import android.graphics.DashPathEffect; import android.graphics.Paint; import android.graphics.PorterDuff; […]

  • CSS3 example code for elliptic trajectory rotation

    Time:2019-5-23

    The following effects need to be achieved recently Starting with css3D rotary writing, only the following effects can be achieved There is no way to turn all the circles to the front. I don’t know if my operation is wrong or if the 3D rotation can’t be realized. The knowledgeable man also asks for advice. […]