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2021SC@SDUSC (15) LVI Sam source code reading 13 -- visual_loop reading 6 - callback function + process analysis This time, we will mainly analyze loop_ detection_ Four callback functions in the node file and a function executed in parallel visual_loop Subscribe to the topic in the main function and start a new thread ros::Subscriber sub_i ...

Note: (this code does not solve the compatibility problem yet, and can run smoothly in google browser) Target effect After the mouse is moved in, the picture starts to rotate and translate in turn. After the rotation and translation is completed, the hexahedron starts to rotate Basic ideas First, add the top sight distance to the html t ...

Here we introduce some geometry provided by threejs: Planegeometry (plane)CircleGeometry (circle)Shapeometry (shaping)Cube geometrySphereometry (sphere)Cylinder geometryTorusgeometry (torusgeometry)Torus knot geometryPolyhedron geometryIcosahedrongeometry (more than 20 sides)Octahedron geometryTetrahedron geometry 2D geometry PlaneGeomet ...

5.Client Library CPP client library: Provide library/interface for ros programming For example, set up a node, publish a message, invoke a service, and so on Provides support for both cpp and python languages, typically using cpp roscpp rospy 5.1 roscpp ros provides an interface for using cpp and topic,service,param, and so on ROS CP ...

backgroundFacebook recently renamed its parent company Meta and announced the official start of its entry into yuancosmos 🪐 Field. This paper mainly describes how to realize the cool 3D dynamic Logo of Meta company through Three.js + Blender technology stack, including basic model ring, torus kink, pipeline and model generation, model loading, ...