I built a mapping service using nodejs-v8.15.0 and tilestrata-2.1.2, and now I have a weird problem debugging the output of geojson. my backend code is as follows: query=`SELECT ST_ASGEOJSON(ST_INTERSECTION( ST_TRANSFORM(ST_SETSRID(way, 900913),4326) ...
I compiled tilemaker, in centos7.4 64bit and converted the pbf file tilemaker ~ Shanghai201804.pbf-- output= root sh.mbtiles with the following statement: terminate called after throwing an instance of std::runtime_error what (): unrecognized ...
recently received a demand that the area of a polygon is too large. I want to divide it into N polygons with an area less than x and then deal with it. Now I don t know what to do when I encounter a problem. I think that there is a polygonal gridding fu...
know two latitude and longitude coordinate points, can you produce a parabola equation, want to draw a line dynamically. I m doing this on mapbox urgently request the boss to answer. ...
just use Homebrew to run brew install postgis directly in the terminal ==> Installing dependencies for postgis: libpng, jpeg, giflib, libtiff, libgeotiff, libxml2, pcre, freexl, libspatialite, gdal, boost, gmp, mpfr, cgal, sfcgal Error: Calling keg_...
java develops recent projects that require gis-related functions, as follows: determine whether the point is within the polygon conversion between different coordinate systems are there any related jar packages that can achieve related functions...
1. Requirements: now the database uses mysql5.7 version, which can support GIS operation and json operation natively. However, due to various reasons, it is necessary to change the database to version 5.6, so you need to add the space expansion of mysql....
PHP oracle GEOLOCPHP I printed the data type of this field, and it turned out to be 108, and Baidu didn t have it for half a day . ...
when typing in Chinese and English in excel, there is often a lot of blank space on one line, but the line wraps automatically. Could you tell me how to set it up? ...
recently I tried to move the finished website (thinkph5 framework) to a remote server, but found that VPS s PDO was not installed: PHP5.65.3: ...
topic description I use JAVA to decrypt and refer to the example of c-sharp. There is no problem with encryption. KEY and IV are both the same . sources of topics and their own ideas related codes Code of JAVA public static String decrypt(String...
I put redis into supervisor monitoring, I put redis startup command redis-server in the PATH attribute of etc profile, executed source etc profile, and manually specified that redis-server can start redis. now I m going to put redis into monitoring...
Corporate video needs to be encrypted. This can be achieved by adding a string of token-like data to the header of the HTTP request for video data at the front end, so as to determine whether the video data is allowed to be returned at the backend. Both ...