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@kgjenkins
kgjenkins / readme.md
Last active May 3, 2024 12:21
Creating halftones in QGIS

Creating halftones in QGIS

A quick demo using a hexagon grid with a centroid fill of points sized using raster values from the image layer.

qgis-hex-halftones2

@mdsumner
mdsumner / fveg_15.md
Last active December 15, 2022 17:50 
git clone https://github.com/r-barnes/ArcRasterRescue.git
cd ArcRasterRescue
make
cd ..
./ArcRasterRescue/arc_raster.exe fveg15_1.gdb/ 0 fveg15.tif
#Arc Raster Rescue (url=github.com/r-barnes/ArcRasterRescue, hash=b60ea39fcf11666d, compiled=2018-05-08 03:43:04 UTC)
#Allocating 4x30592x35456 = 4338679808
gdalinfo fveg15.tif
@TravisMullen
TravisMullen / pivx-cli
Created January 1, 2018 03:20
PIVX Commands
== Blockchain ==
getbestblockhash
getblock "hash" ( verbose )
getblockchaininfo
getblockcount
getblockhash index
getblockheader "hash" ( verbose )
getchaintips
getdifficulty
getmempoolinfo
@gustabot42
gustabot42 / gdb_read.py
Last active June 23, 2022 18:15
Read ESRI GDB With Python 3 GDAL/OGR
#!python3
# Using python3 anconda
# conda install -c conda-forge gdal
from pathlib import Path
from contextlib import contextmanager
from osgeo import ogr
@contextmanager
@Komzpa
Komzpa / gevel_postgis.md
Last active May 7, 2021 00:35
Visualize PostGIS index using Gevel in Postgres 9.6

Visualize PostGIS index using Gevel in Postgres 9.6:

git clone git://sigaev.ru/gevel
cd gevel
git checkout bd8b8b031a8049a6e7c18c00946bfbd99d75d27f
USE_PGXS=1 make
sudo USE_PGXS=1 make install
psql -f /usr/share/postgresql/9.6/contrib/gevel.sql
@missinglink
missinglink / berlin.geojson
Last active March 4, 2017 01:32
postcode boundaries generated from the convex hull of point data from the openaddresses project
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@darrell
darrell / nyt_top52_pgrouting_example.sql
Created February 17, 2017 17:56
how to calculate the shortest path using actual air routes between all the cities in the NYT 52 Places to visit in 2017
-- Airport and Flight data can be downloaded at: http://openflights.org/data.html
-- you'll need airports.dat and routes.dat
-- (I added a couple of commercial flights that I know exist,
-- but weren't in the Open Flights data
-- OK, on to the good stuff.
-- The first thing we do is load the top 52 list, which has the place and
-- the nearest commerical airport. (This is data I just figured out by hand.
-- Where it's very ambiguous, like "Canada" I just used the appropriate capital (i.e. Ottawa))
@mdiener21
mdiener21 / install-postgres-postgis-gdal.sh
Last active June 24, 2020 16:18
Setup Ubuntu 16.04 for GIS development postgresql 9.6, postgis 2.3, gdal 2.1.2, python 3.5, pgrouting
sudo add-apt-repository "deb http://apt.postgresql.org/pub/repos/apt/ xenial-pgdg main"
wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
sudo apt-get update
sudo apt-get install postgresql-9.6
sudo apt-get install postgresql-9.6-postgis-2.3
sudo apt-get install postgresql-9.6-pgrouting
sudo add-apt-repository ppa:ubuntugis/ubuntugis-unstable
sudo apt-get update
@ttimasdf
ttimasdf / Open iterm tab here
Last active March 1, 2020 17:49 — forked from eric-hu/Open iterm tab here
Apple script to open an iterm2 tab from right-clicking on a file or folder in Finder.To use:(1) Open Automator(2) Create a new service(3) Change "Service receives selected" drop downs to "Files or folders" in "Finder"(4) Select "Run applescript" from the sidebar, then paste this script in and save
-- Adapted from these sources:
-- http://peterdowns.com/posts/open-iterm-finder-service.html
-- https://gist.github.com/cowboy/905546
--
-- Modified to work with files as well, cd-ing to their container folder
on run {input, parameters}
tell application "Finder"
set my_file to first item of input
set is_folder to (do shell script "file -b " & quoted form of (POSIX path of my_file))
if is_folder ends with "directory" then
@jsanz
jsanz / README.md
Last active May 17, 2018 13:53
Geocode with Mapzen search and Google Spreadsheets

How to set up a quick geocoding system on google spreadsheets.

  1. Create a new spreadsheet
  2. Open the Scripts editor and paste the script attached
  3. Use on your spreadsheet this new formula
=searchMapzen(place_cell,mapzen_api_key)