This is part 2 of ArcGIS authentication for use in QGIS. In this post, I will go over how to set up OAuth2 authentication which can then be used to securely connect to your AGOL content/resources in QGIS. AGOL OAuth2 Authentication Create new Application Note: Requires an AGOL account with administrator privledges Log into your AGOL account. Go to the Content tab >> Click + New Item >> Select…
I often work in a hybrid GIS environment, using both QGIS and ArcGIS/ESRI suite of software. Most of the time, I use ArcGIS Pro which connects seamlessly to my ArcGIS Online (AGOL) content. However, there are times when I need to connect to my AGOL content from a QGIS desktop environment. It's easy to connect to a public ArcGIS REST server, but what if you want to connect to a private one? There…
Hello OGL readers! I am back from taking a long hiatus, but I'm happy to be sharing on my blog again. This post is about how to convert KML/KMZ files to a GIS layer (i.e. shapefile or feature class) without losing information that's contained in the HTML popup. Often times I want the information from the KMZ popup as separate fields in my GIS attribute table. I work a lot with KML/KMZ files and…
Happy belated New Year! It’s been a long hiatus since my last blog post. My move from Honolulu to Portland last year has been an adventure, but I’m settled in now and ready to tackle some new topics. I’ve been busy doing digital twin development with ESRI’s City Engine and procedural modeling, so I thought it might be fun to show how 3D models can be incorporated into a 3D scene in QGIS using the…
I often work with CAD data that is often in paper space (not in geographic space that has real world coordinates), so I need to georeference the CAD file and be able to bring it into GIS and view it along with other GIS layers. Over the last few years, ESRI/ArcGIS has been advancing data interoperability between CAD and GIS – using ArcGIS, I love the ease with which I can pull in CAD data in GIS…
This posting is for a reader from Australia who asked about how to connect to a Google Cloud Storage in ArcGIS Pro. So, here it is. In my previous post, I wrote about how to access cloud optimized geotiffs (COGs) stored on AWS - you should be able to connect to a Google Cloud Storage as detailed in those previous posts, EXCEPT if you are using ArcGIS Pro 2.9.2 . This is the version I’m using and I…
This short write up is a follow up to the previous tutorial on creating contours from SRTM DEM . Here are some quick tips and tricks for visualizing contours and DEM in QGIS. I am using QGIS v3.22 so if you are using an older version of QGIS the visualization/rendering options may not be available. I am also using the SRTM DEM (e.g. N45W122.hgt) that I downloaded for Mount Hood area from the…
I often get asked to create contours from DEM for engineers and architects for site planning purposes. I primarily use ArcGIS Pro at work to generate contours with ESRI provided terrain data or Lidar derived DEM. But for this tutorial I will show you how to generate contours from a publicly available DEM using QGIS. For this tutorial, I am using a 30-meter (1-arc-second) SRTM DEM. There are…
Have you ever worked on a mapping project and thought “oh, this basemap is great, except for…?” I had that thought just the other day while making some maps for a solar project. The basemap I was using had everything I wanted except I didn’t like how particular features were labeled – in my case here, it was the labels for Hawaiian Home Lands features. I wanted to remove the existing labels and…
In this post I want to share with you a relatively new platform, called Soar.Earth (launched in 2018) that I just found out about a couple months ago. The Soar team (who are readers of my blog) invited me to become one of their power-users to test and review their Soar.Earth geospatial platform. That being said, this is a sponsored post (my first) by Soar.Earth that I am reviewing and providing a…
NOTE : if using ArcGIS Pro 2.9.1, this method will NOT work . For work-around, see the posting Connecting to Google Cloud Storage in ArcGIS Pro This is a continuation of my last post on hosting and accessing Cloud Optimized GeoTIFFs or COGs on AWS S3. In my last post, I showed how to access the COG on AWS S3 in QGIS, but now I want to access them in ArcGIS Pro. ESRI supports COGs - see…
This post is about hosting and accessing Cloud Optimized GeoTIFFs or COGs on AWS S3. I first learned about COGs while trying to find a solution for storing/hosting large raster images (e.g. aerial imagery at 2-4cm resolution) that my team and clients can easily access and use over the web. But first, what are COGs? It isn’t a new format; COGs are simply GeoTIFFs that have an internal organization…
I love storytelling with maps and data. I think one of the best storytelling application is ArcGIS StoryMaps product (see ArcGIS StoryMaps licensing here ). However, if you are looking for an alternative, Cesium Stories is a good one to explore. I was looking for a simple storytelling application with the capability to easily use OSM 3D buildings and I came across Cesium Stories. You will need to…
Happy GIS day! Here is a hands-on virtual workshop I did for the University of Hawaii at Manoa. Thank you to all who attended, and for those who missed it you can download the materials below. Download PDF workbook: QGIS_Workshop_111820.pdf Preview the PDF workbook below. Permalink
This posting is on how to map wind vector (i.e. speed/magnitude and direction) and create an animation using QGIS. This is written for my friend, Jim at PacIOOS. Check them out for some awesome oceanographic data that are open and very accessible. I used their GeoServer services all the time for my tutorials. What you’ll need if you want to follow along with this short tutorial. Requirements: QGIS…
For the past weeks I have been exploring MapStore as a web mapping framework. MapStore is developed by GeoSolutions and is opensource so you can use it freely and modify as you wish. “MapStore is based on OpenLayers, Leaflet and ReactJS, and is licensed under the Simplified BSD license.” I think MapStore has the potential to be a great alternative to ESRI for those looking for an opensource…
Today’s post is inspired by Joseph Kerski, who works at ESRI doing GIS in Education. You can read his post on Using the Photos with Locations Tool in Education . It provides some very useful information for on using ESRI software (AGOL) to map and view geotagged photos. We had an interesting discussion on teaching GIS in the academia (although I am no longer in academia - I still enjoy teaching…
I’m in the process of migrating as much of my workflow from ArcGIS to QGIS as possible. As part of my migration, I’m creating Layout templates to make the process of map making a bit easier. One of the questions I get all the time is how to set the units used in Layout to be in inches instead of millimeter. If you’re a QGIS user, you’ll noticed that you can change the Layout page size to be in…
Did you know you can view/use ESRI basemaps in Google Earth Web and Pro? I had forgotten about ESRI’s KML/KMZ map service capabilities until someone asked me if it was possible to use/view USGS topo maps in Google Earth. Many people are familiar with Google Earth and want to have other basemap options to use. This is a short post on how to bring in ESRI basemaps in Google Earth Pro (desktop) and…
This post an addendum to an older, previous post on Adding and Viewing GeoJSON in QGIS and ArcGIS . This comes from a tip I provided a blog reader who was having trouble adding geojson file via URL in QGIS from Fulcrum. If you are having trouble connecting to geojson data via URL, give this tip a try and see if it works. QGIS 3.10 is the version I’m using. Below is the link to an example geojson…