Видео 282
Просмотров 393 089

2:47

Automatic date and time text in Print Layout in QGIS

10:01

World land layers with the Americas or the Pacific in the middle

1:00

Map layers for all of Great Britain in QGIS

19:05

Create globe locator maps in QGIS

18:29

How to get features from OpenStreetMap into QGIS

4:17

Draw a circle round a point in QGIS

If you want to draw circles round a point (or points) in QGIS you can do it really easily using a geometry generator expression. Take a look to see how.
You don't need to create a new layer. You can have as many circles as you want. In this example my data units are metres, but if you have a different kind of data, or your data is not projected in meters then you may want to take a different approach. You can find what units your data are in by going to Layer Properties (just double click the layer name in the Layers Panel) and then in the Information section you'll see the layer units in the Coordinate Reference System (CRS) section.
See my intro and intermediate QGIS courses for more: ww...

Видео

2:47

What the heck is a geojson?

Просмотров 385День назад

If you use GIS software, or do any map stuff on the web you'll quickly come across the geojson file format. But what is it? Well, it's just a text-based GIS file format that contains the coordinates of points, lines or polygons. But the important thing is that you can just drag and drop it into QGIS, just like you can with a Shapefile, GeoPackage, KML or other formats. Want to know more? Read t...

Automatic date and time text in Print Layout in QGIS

10:01

Automatic date and time text in Print Layout in QGIS

Просмотров 24214 дней назад

Rather than add the date manually to a Print Layout in QGIS, it can be useful to use an expression instead. Why? Because it will automatically update the date - and time if you want it - so that when you save your map it will have the current date on it without you having to manually type it in. This is really useful if you are producing multiple version of the same map and need to keep track o...

World land layers with the Americas or the Pacific in the middle

1:00

World land layers with the Americas or the Pacific in the middle

Просмотров 179Месяц назад

When you have a world land layer in QGIS, in vector format (e.g. a shapefile or a GeoPackage) and you change it from something like WGS84 projection to an Americas-centric or Pacific-centric coordinate reference system, weird things can happen. You often get strange lines going across the map canvas. To make things easier, I've created two land layers - one with the Americas in the middle and a...

Map layers for all of Great Britain in QGIS

19:05

Map layers for all of Great Britain in QGIS

Просмотров 654Месяц назад

Are you doing any mapping of Great Britain? Well if you are you'll definitely want to know about the map layers included in the OS Open Zoomstack free data product from Ordnance Survey. It's fantastic! Take a look at the video to see how to get up and running - you can use all the layers, or just one of them and there are also style files already made for you. You'll see how it all works if you...

18:29

Create globe locator maps in QGIS

Просмотров 836Месяц назад

Sometimes you might want to create a locator map to show where a country or area is in the world, and make it look like a globe. This video shows you how you can do it very quickly in QGIS using the Globe Builder plugin. I do it using the default 'world' layer in QGIS but if you are looking for different boundaries for countries or sub-national regions then you can use an alternative data sourc...

How to get features from OpenStreetMap into QGIS

4:17

How to get features from OpenStreetMap into QGIS

Просмотров 766Месяц назад

Want to get a feature (e.g. a road, park, city boundary, country outline) from OpenStreetMap as a vector layer that you can use in QGIS? Check out this video to see how easy it is with the OSMInfo plugin in QGIS. © OpenStreetMap contributors See my intro and intermediate QGIS courses for more: www.udemy.com/user/alasdair-rae-2/

Select features using an expression in QGIS

3:34

Select features using an expression in QGIS

Просмотров 3722 месяца назад

Sometimes we just select features in QGIS quickly using the pointer and clicking on them. But when we have tens or hundreds to select and there is a risk of making a mistake this approach is no good. So that's an example of when we might want to use an expression to select features, as shown in this video. See my intro and intermediate QGIS courses for more: www.udemy.com/user/alasdair-rae-2/

Color one feature with an expression in QGIS

3:38

Color one feature with an expression in QGIS

Просмотров 3682 месяца назад

Want to color just one of your features in QGIS to make it stand out? But you don't have a column in your data that would let you do it quickly? Well just use this very simple method! See my intro and intermediate QGIS courses for more: www.udemy.com/user/alasdair-rae-2/

Show only features that intersect Atlas features in QGIS

4:44

Show only features that intersect Atlas features in QGIS

Просмотров 3972 месяца назад

In a previous video I demonstrated how the QGIS Atlas tool works. This video builds on that and shows how you can show only those places that intersect the current Atlas feature. It makes things a lot less messy, visually. Here's the expression I use - intersects($geometry, @atlas_geometry). In the video you see there is a space after @atlas_geometry and before the final bracket - that doesn't ...

19:43

Automated mapping with QGIS Atlas

Просмотров 1,6 тыс.2 месяца назад

Do you want to learn how to automate the map production process in QGIS? It can be done in QGIS using the Atlas tool, so have a look at this video to find out how. Here's the expression I use in the video to show only one country at a time: $id = @atlas_featureid See my intro and intermediate QGIS courses for more: www.udemy.com/user/alasdair-rae-2/

Filtering when text has an apostrophe in QGIS

2:51

Filtering when text has an apostrophe in QGIS

Просмотров 2513 месяца назад

Need to run a filter on your data to find a feature but the name contains an apostrophe and it's all going wrong? Can't figure out how to filter for a place like St John's or Land's End? Then watch this. The solution is simple - just use two apostrophes!

A quick hack to move Alaska and Hawaii for US maps in QGIS

2:32

A quick hack to move Alaska and Hawaii for US maps in QGIS

Просмотров 2003 месяца назад

Sometimes when mapping the United States we put Alaska and Hawaii below the lower 48 states, just so we can fit them in one screen/page. It's a compromise but it's also something of a convention. This video shows you how you can do it quickly in QGIS using a geometry generator expression, shown below. CASE WHEN "code" = 'AK' THEN scale(rotate(translate( $geometry,1200000,-5000000),-28),0.5,0.5)...

Where to find your Print Layout in a saved project in QGIS

1:02

Where to find your Print Layout in a saved project in QGIS

Просмотров 1,7 тыс.6 месяцев назад

If you create a Print Layout in your QGIS project and then save your project then the Print Layout is always saved as part of the project. But when you open your QGIS project at a later time the Print Layout will not normally open as well. That's just how it works, but don't worry - all you need to do to view the Print Layout again is go to the Project menu and then Layout and you'll see any Pr...

Draw effects: features vs entire layer in QGIS

3:32

Draw effects: features vs entire layer in QGIS

Просмотров 9017 месяцев назад

Draw effects in QGIS are amazing because you can style a layer in some really nice ways. But if you have a layer comprised of multiple features (e.g. polygons) it is easy to get it wrong so that's what I discuss in this video. Have a look anyway because it's very useful for things like drop shadows. See my intro and intermediate QGIS courses for more: www.udemy.com/user/alasdair-rae-2/