I am glad to announce a new course on GeoServer that is available NOW on Udemy.com. GeoServer is open source software that will allow you to provide access to your data over the internet to anyone in the world. It is the open source equivalent of ArcServer in the ESRI ecosystem. GeoServer makes it possible to publish your data as WMS and/or WFS web services that can be used directly in desktop GIS software or as web pages without programming.
This course will provide the background that you need to understand what GeoServer does and how it works and then show you how to
Install a local version of GeoServer for development purposes and to explore the GeoServer interface
Set up a GeoServer instance in the cloud and load your data to it.
Create user accounts to control who has access to your data and exactly what they can do with it
Style your data with symbols created in QGIS
Filter your data both spatially and by attribute
Use GeoServer web services in desktop GIS clients such as QGIS, ArcGIS, and Google Earth Pro.
Create web maps that use web services from GeoServer and will allow the viewer to select exactly which data they want to view and perform spatial analysis via the web.
This course has over 9 hours of content, please consider that when comparing with other courses that claim to be able to teach you GeoServer in 2 hours. I don’t believe that is possible.
This course is available at an introductory price of $9.99 USD until July 1. The pricing is adjusted by country so it may be less in your area. Use this link to receive the discount GeoServer for $9.99 until July 1
This course is an update of my course QGIS 3.0 for GIS Professionals. Those of you who have already registered for this course will have access to the updated materials immediately. As the most recent Long Term Release, QGIS 3.10 LTR is much more stable and well developed than the beta version of QGIS 3.0 that I used to develop the original course.
Please not that this is not a beginner level introduction to QGIS. I assume that you have some familiarity with GIS concepts but are interested in learning how to apply those with QGIS. Also, please note that this course has 12 hours of video content. Please consider that when comparing to other QGIS courses available on Udemy.com
This course as well as my QGIS courses are available until May 22 for $9.99 (USD, May be less in other countries) using the links below.
The good news is that there are not a lot of major changes to the original course. This in general is an advantage of open-source software. The changes tend to be incremental, not monumental with most of the changes focused on improving functionality rather than re-inventing the wheel with lots of new bells and whistles.
There are some lectures with minor changes that may have been as simple as the addition of a text box pointing out something that has changed in QGIS 3.10 LTR. I also added some additional new material and updated a few entire lectures in cases where there were major changes.
Major changes include:
New Lecture 30: Working with attribute forms and validation
New Section 8: Joins and relates
New Lecture 51: About joins and relates
New Lecture 52: Attribute Joins
New Lecture 53: Relates
New Lecture 54: Spatial Joins
Completely replaced Lecture 70: Publishing your data to the internet
New Lecture 74: Data visualization with the Data Plotly plugin
New Lecture 75: Working with NULL values
New Lecture 76: Working with Virtual Layers
New Lecture 81: Working with Multiple Map Views
New Lecture 82: QField overview – mobile data collection
New Lecture 83: Working with QGIS templates
New Lecture 84: Opening file attachments in QGIS
New Lecture 85: The QGIS authentication system
Minor changes include:
Lecture 1: Introduction
Lecture 6: Toolbars and panels
Lecture 7: QGIS Plugins
Lecture 17: Loading data from PostGIS
Lecture 18: Background maps
Lecture 26: Selecting features
Lecture 28: Selecting by spatial relationships
Lecture 38: Printed maps
Lecture 43: Introduction to reports
Lecture 49: Working with contiguous polygons
Lecture 55: Buffering
Lecture 56: Clipping
Lecture 58: Dissolving
Lecture 62: Rasterizing a vector layer and creating a proximity raster
QField is an open-source Android based mobile data collection and/or viewing application that is tightly integrated with QGIS.
QGIS is used to set up the project using standard QGIS tools.
If the layers in your project are stored in a PostGIS database and a mobile data connection is available then changes made in QField are made directly to your database and visible in real-time to anyone that has a client to your database. This, in my view, is the mobile data collection killer app.
QGIS 3.0 has a powerful new way to create automated mapbook products called reports. If you are familiar with map atlas’s in QGIS 3 or data driven pages in ArcGIS you will be somewhat familiar with the basic premise. Continue reading “Reports in QGIS 3.0”
One of the many great new features of QGIS 3.0 is its ability to view and work with multiple map canvases or map views. You can link the location and scales of these views together so that they are centered in the same place but showing different data at different scales. For instance you can make an overview map showing the location of the main data frame in a larger spatial context or a close-up showing detailed aerial photography. Continue reading “Working with multiple map views in QGIS 3.0”
For many years I had been hearing about spatial databases. I knew that some of the frustrating issues I was dealing with as the GIS specialist for small environmental consulting companies could be addressed with the technology. But consulting is all about billable hours and its really hard to convince your boss to give you the unbillable time needed to figure it all out. And its really hard and probably unethical to expect a client to let you figure it all out on their dime. So until a few years ago I kept chugging away with single-user file-based data storage and wasted an enormous amount of time managing data and people to prevent conflicts that could have easily been prevented with a spatial database. Continue reading “Getting started with PostGIS”
I have nothing against ESRI, they have been innovators in the geospatial software world from the beginning. I got into GIS from a natural resources background and I know that they have supported the conservation community for decades through their conservation grants program and many other ways. Jack Dangermond’s recent donation of $165 million to the Nature Conservancy to purchase one of the last large undeveloped parcels of southern California coastline stirred my heart and made me well up in tears with pride in the GIS community. I am not opposed to companies selling GIS software for profit. I believe in capitalism. I believe that entrepreneurs should be rewarded financially for producing high quality products at a fair price. Continue reading “The case for open-source GIS”