mongo projection

4.4 Common map projection in China Basic scale topographic map of China (1:1 million, 1:500,000, 1:250,000, 1:100,000, 1:50,000, 1:25,000, 1:10,000, 1:5,000) except 1:1 million, using Gauss-gram gauss–krüger Gauss-kruger projection (Horizontal isometric cylindrical projection, also called transverse Mercator Transverse Mercator

Article Introduction: Pure CSS3 text gradient inner glow projection effect. The former has done a CSS3 text effect, involving CSS3 projection, gradient, mask, pseudo class and other knowledge points, now write down the design ideas, for reference only. Send an effect chart everyone look first: projection Shadow Box-shadow Generally we are using CS

Projection type: Based on the shape of the shadow plane, it can be divided into: azimuth projection (plane projection), cone projection, and garden column projection.Classified by deformation properties into: Equality projection, equality

MONGO practice-operation via JS Shell MONGOSave command:J={name: "Wangjingjing", age:15}Db.user.save (j);Query command:var cursor = Db.user.find ();while (Cursor.hasnext ()) Printjson (Cursor.next ());Printjson (Cursor[4]);var arr = Cursor.toarray ();Db.user.find ({name: "wangjingjing"});Select age from user where name= ' wangjingjing 'Db.user.find ({name: "wangjingjing"},{age:true});Db.user.findOne ();Db.user.find (). limit (3);To modify a command:Db

Projection Mode -Unity3d Game Development TrainingDeng Jiahai2018-02-12 20:33:13SummaryPerspective projection is the basic concept of 3D rendering and the basis of 3D programming. Mastering the principle of perspective projection plays an important role in understanding other 3D rendering pipelines in depth. In this paper, the principle and algorithm of perspecti

algorithm (LSH) solves the problem of mechanical similarity of text (I, basic principle)The R language implements the ︱ local sensitive hashing algorithm (LSH) to solve textual mechanical similarity problems (two. Textreuse introduction)The four parts of the mechanical-similar Python version:Lsh︱python realization of locally sensitive random projection forest--lshforest/sklearn (i.)Lsh︱python implementing a locally sensitive hash--lshash (ii)Similari

Abstract: The first tone and the resurrection of Teresa Teng, constitute the Oriental civilization to explore the two major power of holographic technology. In May this year, 22 years after Teresa Teng's death, the Japanese TBS television "Golden SMA" program broadcast a special program. According to the introduction, the program group uses 5D holographic projection technology, let Teresa Teng on the stage resurrection, reproduced her in the 1986 in

Original post address: http://blog.csdn.net/popy007/article/details/1797121 Perspective Projection is an important part of a 3D fixed assembly line. It is used to transform the points in the camera space from the cone (frustum) to the canonical view volume, the Perspective division action after cropping. In the algorithm, it is completed in two steps: Perspective matrix multiplication and perspective division. Perspective

Looking back, I have been in touch with remote sensing for several years, and now I am moving away from remote sensing. I suddenly want to sort out the remote sensing knowledge in my mind. The first thing that comes to mind is the coordinate system and projection. I think this is bothering more than 80% of practitioners in the field of surveying, remote sensing, and GIS. People in this group often ask me that I was also confused, what earth coordinate

Projection The 2D plotting of OpenGL ES is mapped to the screen through "projection. We have already mentioned that OpenGL ES is mainly related to triangles. A triangle has three vertices in 3D space (remember that OpenGL ES performs operations on graphics in 3D space ). To draw such a triangle in framebuffer, OpenGL ES needs to know the coordinates of the three vertices of the triangle in 3D space. The coo

Also known as the positive axis conformal cylindrical projection. A cylindrical projection of a kind, by the Dutch map biologist Mercator (G. Mercator) was created in 1569. Is the most influential in the map projection method.Imagine a cylinder aligned with the axis of the Earth cut or cut in the world, according to the isometric conditions of the graticule

The principle and implementation of perspective projectionby goncelyReprint: http://blog.csdn.net/wong_judy/article/details/6283019abstract : Perspective projection is the basic concept of 3D rendering and the basis of 3D programming. Mastering the principle of perspective projection plays an important role in understanding other 3D rendering pipelines in depth. In this paper, the principle and algorithm of

This article is reproduced in the article. Recall that the professional contact with remote sensing for several years, and now more and more deviated from remote sensing, suddenly thinking of their own brain in the remote sensing knowledge to sort out. The first thought is the coordinate system and projection, I think this thing bothers more than 80% of surveying, remote sensing and GIS practitioners in the field, the group often asked, I was als

1. Dynamic projection (ArcMap) The so-called dynamic projection refers to the spatial reference of Data In ArcMap or the coordinate system is the coordinate system of the file first loaded to the current workspace by default, and then the added data, if it is different from the coordinate system of the current workspace, ArcMap automatically performs a projection