R Leaflet Tutorial

R Leaflet Tutorial

All this Blog

Your own web map with R Leaflet


Overview

We’ve just created a whole bunch of data and so far it is just a bunch of shapefiles (or geojson files – depending on what you exported) and .csv files. We haven’t even had the chance to look at what we’ve made! While there are a dozen tools we could use to visualize and interact with our data (e.g. Tilemill, Mapbox Studio, CartoDB, Tableau, etc), we are going to stick with R for now and let it “gently” introduce us to the fundamentals of a web map.

Web Map Fundamentals

A number of great people out there have created an overview of web map fundamentals, let’s take a look and learn how it all works:

Alan McConchie & Beth Schechter! – anatomy of a web map

Maptime ATX – web map fundamentals

Joey’s Hello Web Maps Intro

Enter: R Leaflet

So if…

Ver o post original 2.608 mais palavras

End of life notice: QGIS 2.18 LTR

End of life notice: QGIS 2.18 LTR

Fim do QGIS 2.18 LTR. Início do QGIS 3.4 LTR.

QGIS.org blog

257901067_158842QGIS 3.4 has recently become our new Long Term Release  (LTR) version. This is a major step in our history – a long term release version based on the massive updates, library upgrades and improvements that we carried out in the course of the 2.x to 3x upgrade cycle.

We strongly encourage all users who are currently using QGIS 2.18 LTR  as their preferred QGIS release to migrate to QGIS 3.4. This new LTR version will receive regular bugfixes for at least one year. It also includes hundreds of new functions, usability improvements, bugfixes, and other goodies. See the relevant changelogs for a good sampling of all the new features that have gone into version 3.4

Most plugins have been either migrated or incorporated into the core QGIS code base.

We strongly discourage the continued use of QGIS 2.18 LTR as it is now officially

Ver o post original 163 mais palavras

Announcing the WhiteboxTools library

WhiteboxTools is an advanced geospatial data analysis engine. The library has been developed using the Rust programming language

Whitebox Geospatial Analysis Tools

Things have been moving forward with Whitebox GAT at a fast pace recently. I have had numerous request over the years from people who want to use Whitebox GAT tools from outside of the user interface (UI). While all of Whitebox’s tools can be called from scripts, historically, there has been no way to call a Whitebox tool from outside the UI. Quite some time ago, I committed myself to finding a solution for this problem but efforts have been delayed by a coincident urgent development need. Increasingly the decision to develop Whitebox GAT in Java has been problematic as systems provide ever more marginal support for the Java platform. The solution to these two issues (i.e. external automation of Whitebox tools and the need to decrease reliance on Java) has a convenient synergistic overlap. Today I am publicly announcing the WhiteboxTools library. WhiteboxTools is a sub-project of the

Ver o post original 313 mais palavras

Orfeo Toolbox – Satellite Remote Sensing for QGIS

Orfeo Toolbox – Satellite Remote Sensing for QGIS

IeQGIS

OTB1

Orfeo Toolbox 4.0 (OTB) is now available for QGIS on Ubuntu 13.10 and 14.04 via the UbuntuGIS Unstable repository (it was previously available for earlier versions of Ubuntu and separately MS Windows via OSGeo4W). OTB, which can be accessed via the Processing Toolbox, provides QGIS with advanced satellite remote sensing capabilities, the sophistication of which maybe best appreciated upon thumbing OTB’s rather daunting 732 page manual.

OTB is a library of image processing algorithms based on the medical image processing library ITK v4, adapted for analysis of high resolution satellite imagery. Its algorithms are tuned to cope with huge images, that normally require supercomputer facilities, by using streaming and multithreaded processing.

The OTB project was initiated the French Space Agency (CNES) in 2006 with the objective to provide a suit of opensource tools for the analysis of images produced by the Orfeo constellation of…

Ver o post original 178 mais palavras