geos

问题 I have a number of random rectangles (black) in and around a unit square (red) and need to extract all the polygonal regions inside the unit square that are not covered by any rectangle. It looks like this can be done with Shapely and I've gotten to the point when I have the union of the rectangles (green) but I'm not sure how to subtract that from the unit square and retrieve a list of polygons. Here is my code to generate the test data: import pylab import random from matplotlib import

问题 I have a number of random rectangles (black) in and around a unit square (red) and need to extract all the polygonal regions inside the unit square that are not covered by any rectangle. It looks like this can be done with Shapely and I've gotten to the point when I have the union of the rectangles (green) but I'm not sure how to subtract that from the unit square and retrieve a list of polygons. Here is my code to generate the test data: import pylab import random from matplotlib import

问题 I have a shiny app that runs fine on my computer. I use packages sf , leaflet , and tmap . One of these requires the package lwgeom as a dependency. While installing the package lwgeom , shiny deployment gives me the following error message. What is GEOS ? And how can I upgrade GEOS to 3.6.0 or later? Building R package: lwgeom (0.2-4) /mnt/packages/build /mnt * installing to library ‘/opt/R/4.0.0/lib/R/library’ * installing *source* package ‘lwgeom’ ... ** package ‘lwgeom’ successfully

问题 I have spent most of the day trying to compile an exe file from my python script and running it through the vanilla cmd command prompt. I finally managed to create the exe-file, but weirdly it only runs in the anaconda prompt and not in the cmd. Here is the full error message/traceback: Traceback (most recent call last): File "C:\ProgramData\Anaconda3\lib\site-packages\cx_Freeze\initscripts\__startup__.py", line 14, in run module.run() File "C:\ProgramData\Anaconda3\lib\site-packages\cx

问题 I have spent most of the day trying to compile an exe file from my python script and running it through the vanilla cmd command prompt. I finally managed to create the exe-file, but weirdly it only runs in the anaconda prompt and not in the cmd. Here is the full error message/traceback: Traceback (most recent call last): File "C:\ProgramData\Anaconda3\lib\site-packages\cx_Freeze\initscripts\__startup__.py", line 14, in run module.run() File "C:\ProgramData\Anaconda3\lib\site-packages\cx

问题 we have troubles in installing the GEOS library on heroku cedar stack. We followed this guide: https://devcenter.spacialdb.com/Heroku.html and it didn't work. We noticed that the path (/app/tmp/geos) stored in the provided geos binaries was wrong, so we built our own binaries with vulcan. We changed parameters (BUNDLE_BUILD__RGEO) accordingly, but we weren't able to make it work. We even hardcoded geos paths in our custom rgeo gem without any success We also tried other buildscripts (https:/

问题 I'm moving a database from PostGIS 2.2.1 to 2.5.0 (PG 9.6). I pg_dumped the old database and am using pg_restore to import it. Everything appears to go fine but I'm getting these two errors. Is this something I need to worry about or can just ignore them? pg_restore: creating AGGREGATE "public.accum(geometry)" pg_restore: [archiver (db)] Error while PROCESSING TOC: pg_restore: [archiver (db)] Error from TOC entry 4925; 1255 348862 AGGREGATE accum(geometry) aed pg_restore: [archiver (db)]

问题 The enviroment is as follows: **Windows 7** PATH=C:\Python27\;C:\Python27\Scripts;C:\Python27\Lib\site-packages\MySQLdb;C:\Program Files\MySQL\MySQL Server 5.5\bin;C:\OSGeo4W\bin **python 2.7** 'C:\\Python27\\lib\\site-packages\\bitstring-2.1.1-py2.7.egg', 'C:\\Python27\\lib\\site-packages\\setuptools-0.6c11-py2.7.egg', 'C:\\Python27\\lib\\site-packages\\virtualenvwrapper-2.11.1-py2.7.egg', 'c:\\cygwin\\home\\username\\__prjs\\flt\\requirements\\src\\djangoembed', 'C:\\Windows\\system32\

问题 I'm trying to install the rgeos package (and the rgdal) package. I have a macbook pro running os x 10.7.1 and I have the latest version of R, 2.13.1. I am following the instructions from this site: http://lostingeospace.blogspot.com/2011/08/rgeos-on-macos-x.html I have installed the latest GDAL complete framework 1.8 from http://www.kyngchaos.com/software:frameworks and have downloaded the source file rgeos_0.1-8.tar.gz from CRAN. In terminal, I input the following, as per the instructions:

问题 I'm trying to install the rgeos package (and the rgdal) package. I have a macbook pro running os x 10.7.1 and I have the latest version of R, 2.13.1. I am following the instructions from this site: http://lostingeospace.blogspot.com/2011/08/rgeos-on-macos-x.html I have installed the latest GDAL complete framework 1.8 from http://www.kyngchaos.com/software:frameworks and have downloaded the source file rgeos_0.1-8.tar.gz from CRAN. In terminal, I input the following, as per the instructions: