04 2019 档案

PostGIS空间查询
摘要：select * from footprints t where ST_intersects(t.geom,ST_GeomFromGeoJSON('{"type":"Polygon","crs": { "type": "name", "properties": { "name": "EPSG:4326" } },"co... 阅读全文
posted @ 2019-04-16 15:09 ParamousGIS 阅读(2888) 评论(0) 推荐(0) 编辑
MSys2安装QT5
摘要：1. MSYS2 shell# pacman –Syuu2. Reopen MSYS2# pacman –Syuu3.添加国内源msys64\etc\pacman.d 目录下有三个文件1. mirrorlist.msysServer = http://mirrors.ustc.edu.cn/msys2/msys/$arch/2. mirrorlist.mingw64Server = http://... 阅读全文
posted @ 2019-04-12 22:30 ParamousGIS 阅读(1004) 评论(0) 推荐(0) 编辑
MinGW编译Mongo-CXX-Driver
摘要：8. mongo-cxx-driverpacman -S mingw-w64-x86_64-cyrus-saslpacman -S mingw-w64-x86_64-extra-cmake-modulesexport OS_BUILD=64cd mongo-c-driver-1.14.0/mkdir cmake-buildcd cmake-buildcmake -G "MSYS Makefiles... 阅读全文
posted @ 2019-04-11 17:41 ParamousGIS 阅读(475) 评论(0) 推荐(0) 编辑
QGIS中坐标偏移处理
摘要：to_real("LGTD")+(randf(0.0,1.0)-0.5)*2/1000000.0getRandomValue()import numpydef getRandomValue(): return numpy.random.random() 阅读全文
posted @ 2019-04-03 15:30 ParamousGIS 阅读(2301) 评论(1) 推荐(0) 编辑

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