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Today, we share the 3D pre-defined model of the 3D series.The HT for WEB provides a variety of basic types for user modeling, unlike traditional 3D modeling, HT's modeling core is API-based interface, and is set up to build three-dimensional models with HT predefined primitive types and parametric interfaces. Let's talk about the predefined 3D models and parameter settings.HT pre-defined 3D models are: box, sphere, cone, torus, cylinder, star, rect, r
-ldisk/dev/vda:37.6 GB, 37580963840 bytesHeads, Sectors/track, 72817 cylindersUnits = Cylinders of 1008 * 516096 bytesSector size (logical/physical): bytes/512 bytesI/O size (minimum/optimal): bytes/512 bytesDisk identifier:0x0004583cDevice Boot Start End Blocks Id System/DEV/VDA1 * 3 1018 512000 LinuxPartition 1 does not end on cylinder boundary./dev/vda2 1018 62416 30944256 8e Linux LVMPartition 2 does not end on
hard drive-rpm, with a common capacity of 1 TB, 2 TB, 4 TB, and 6 TB. The advantage is cost effectiveness and high capacity. Considering the specific business needs and cost-effectiveness, in work, SATA disks are used for offline data storage or concurrent business services that do not provide services, such as offline backup of site programs, databases, and images. High Cost Performance, generally 2 tb sata disks. Disk purchase highlights: 1. SAS disks are used for online businesses. 2. Offlin
1. What is a primitive? The primitive is a geometric object that can be drawn using gldrawarrays and gldrawelements. A primitive is described by a series of vertices. Each vertex contains the position, color, normal, and texture coordinates. The primitives include vertices, lines, and triangular rows. Ii. Primitive types 1. Triangle primitive type 1) gl_triangles: triangle
smallest set of edge E used to connect all vertices in V at the lowest cost. The edges in the set T can form a tree, because each vertex can find its parent node (except for root nodes).Prim algorithm The prim algorithm is a method of generating a minimum spanning tree . The prim algorithm starts at any vertex, selects one vertex closest to the current vertex at a time, and joins the edges between the two vertic
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Today, we share the 3D pre-defined model of the 3D series.The HT for WEB provides a variety of basic types for user modeling, unlike traditional 3D modeling, HT's modeling core is API-based interface, and is set up to build three-dimensional models with HT predefined primitive types and parametric interfaces. Let's talk about the predefined 3D models and parameter settings.HT pre-defined 3D models are: box, sphere, cone, torus, cylinder, star, rect, r
inaccessible, it is possible that the boot area of the primary boot area or bootable partition is corrupted. At this time, we can apply the debug command and other tools software to see if the hard drive's primary boot area is normal. I use a MSDOS system floppy disk to boot, into the DOS system, because the primary partition of the server is NTFS format, if not Third-party software is unable to view the partition information, but I want to use the debug command to look at the MBR (hard disk ma
MBR partition table The traditional partitioning scheme, called the MBR partitioning scheme, is to save the partition information to 64 bytes in the first sector of the disk (the MBR sector). Each partition entry occupies 16 bytes, which contains the activity status flag, the file system identity, the start and end cylinder number, the number of magnets, the sector area code, and the hidden sector numbers ( 4 bytes), the number of total partition sec
+ hda10...... 2. Description of some fdisk-L values; Disk/dev/hda: 80.0 GB, 80026361856 bytes255 heads, 63 sectors/track,9729 CylindersUnits = cylinders of 16065*512 = 8225280Bytes This hard disk is 80 GB, with 255 magnetic surfaces; 63 sectors; 9729 magnetic columns; eachThe cylinder (magnetic column) capacity is 8225280 bytes = 8225.280 K (about) = 8.225280 M (about ); Partition sequence boot starts to terminate
Link: http://acm.hdu.edu.cn/showproblem.php? PID = 4617 weapon Time Limit: 3000/1000 MS (Java/others) memory limit: 65535/32768 K (Java/Others)Total submission (s): 224 accepted submission (s): 178Problem description doctor D. are researching for a horrific weapon. the muzzle of the weapon is a circle. when it fires, rays form a cylinder that runs through the circle verticality in both side. if one cylinder
of hard disk is a platter coated with magnetic media made of hard metal materials, and the number of platters of different capacity hard disks varies. Each platter has two sides and can record information. The platters are divided into many scalloped areas, each region being called a sector, and each sector can store 128x2 N-n=0.1.2.3 bytes of information. In DOS, each sector is a 128x2 of 2 times = 512 bytes, the disc is centered on the disc center, concentric circles of different radii are ca
beginning of the story. The most basic component of hard disk is a platter coated with magnetic media made of hard metal materials, and the number of platters of different capacity hard disks varies. Each platter has two sides and can record information. The platters are divided into many scalloped areas, each region being called a sector, and each sector can store 128x2 N-n=0.1.2.3 bytes of information. In DOS, each sector is a 128x2 of 2 times = 512 bytes, the disc is centered on the disc cen
Strongly Connected components A directed graph is strongly connected if there are a path between all pairs of vertices. a strongly connected component (SCC) of a directed graph is a maximal strongly connected subgraph. For example, there is 3 SCCs in the following graph.We can find all strongly connected-in O (v+e) time using Kosaraju ' s algorithm. Following is detailed Kosaraju ' s algorithm.1) Create an empty stack ' S ' and do DFS traversal of
"; Shademode= "LightSource"; SortMode= "Unsorted"; Addphi=-0.5; Abouty=-90; Perslevel= 1000; Init ([{x:-80,y:180,z:0},{x:0,y:180,z:-80},{x:0,y:0,z:-80},{x:-80,y:20,z:0},{x:-50,y:150,z:-30},{x:0,y:150,z:-80},{x:0,y : 130,z:-80},{x:-30,y:130,z:-50},{x:-28,y:110,z:-52},{x:0,y:110,z:-80},{x:0,y:90,z:-80},{x:-45,y:90,z:-35},{x:- 44,y:80,z:-36},{x:-25,y:80,z:-55},{x:-22,y:66,z:-58},{x:0,y:60,z:-80},{x:0,y:40,z:-80},{x:-40,y:50,z:-40}], [], [{color:[227,76,38],VERT
Traversal of graphs Graph traversal (traversing graph): from one vertex of the graph, visit the remaining vertices in the diagram, and each vertex is only accessed once.The traversal algorithm of graphs is the basis of operation of various graphs. However, the traversal of the diagram has the following characteristics:Complexity: Any vertex of the graph may be adjacent to the rest of the vertices, possibly
is a path from Vertex VI to VJ in the direction graph G, then the vertex VI must be called a topological sequence before the vertex VJ in the sequence. The process of finding an encounter topology sequence is called topological ordering.The topological ordering of a graph can be seen as a sequence of all the vertices in the graph arranged along the horizontal line, so that all the forward edges are pointed from left to right. In many applications, a
at boot time (e.g., old versions of LILO)2) booting and partitioning software from other OSs(E.g., dos fdisk, OS/2 FDISK)Warning: invalid flag 0x0000 of partition table 4 will be corrected by w (rite) Command (m for help): p # view partition information Disk/dev/sdb: 8589 MB, 8589934592 bytes255 heads, 63 sectors/track, 1044 cylindersUnits = cylinders of 16065*512 = 8225280 bytesDisk identifier: 0x416ba19a Device Boot Start End Blocks Id System Command (m for help): n # create a primary partiti
2. Track The disk is divided into many concentric circles during formatting. These concentric circle tracks are called tracks ). The track starts from 0 in sequence. Each disk on the hard disk has 300 ~ 1 024 channels, with more tracks on each side of the new large-capacity hard drive. Information is recorded in these tracks in the form of a pulse string. These concentric circles are not continuously recorded data, but are divided into arcs in the middle segment. These ARCs share the same angu
, channels, and sectors are divided into the side, track, and sector sectors ). It should be noted that these are just virtual concepts, and they are not really track on the hard disk. Starting from the surface, the hard disk is generally made up of one or more circular films. As we said, each circular film has two "faces", both of which are used to store data. The number of faces is called 0, 1, and 2 ...... Since each side has a dedicated read/write head, it is also commonly used with 0 heads
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