Introducing Layers of London
Top frequently asked questions
- How can I help?
- I would like to record some video/audio footage but I don’t have the equipment/skills – can you help?
- How does my group/organisation get involved?
- What if I don’t know the exact location of a record?
- What if I don’t own the image/text/document/recording that I upload?
How to work collaboratively
There are different ways to contribute to Layers of London. You can choose to work individually adding records and collections. You can also work in a team with other people that are also interested in the same topic. You might be a voluntary organisation or organisation with more than one member. You can then work on a collection together. You can also choose to make a open collection. This means you can start a collection on a topic such as 'Medieval Croydon' and then anyone who wants to also contribute to this collection so this becomes a open collaborative collection. You can access these options by going to 'Your profile': From here, click the 'Teams' tab: Here you have the option to see what teams you are in, you can apply to join teams that are open to collaborative working or you can create a new team. If you choose to create a new team you will see this page: From here you can invite team-mates to join you via email.
How do I get content removed?
We rely on users to report inappropriate content on the map alongside our monitoring of contributions. If you see any records or collections that you think don't meet the contributor agreement and therefore should be taken down as part of the takedown policy then you can report this record. How to report a record: Go to the record you want to report and scroll to the bottom of the page Click the 'report this record' button Choose the reason you would like this record removed and you can choose to submit a reason too Please add your email address so we can contact you to let you know of developments Click send so the report is logged
Searching and dates
There are 2 ways to search for information on the map. You can search by place on the right hand search menu: You can search for a topic by using the magnifying glass symbol on the left hand side menu. Here you can also search my date range or you can pick a historical era: It is useful to know how the search function works to ensure your content is found easily by users. At the moment the topic search filters keywords in your titles and descriptions. Because of this, it is important that your titles and descriptions are spelled correctly and include the keywords people might search for to find your content.
Layer Making – how to use our geo-referencer
Georeferencing images, or as we call it, layer making, is how we take historic map or aerial images of London and connect them geographically to the Layers of London base map. This guide will explain how the geo-referencing tool will work when released.
Formats for uploading content
The Layers of London project recommends using the Heritage Lottery Fund: Using digital technology in heritage projects-Good practice guidance. For uploading new content to records, it is recommended that: still images should have a horizontal resolution of 1024 pixels; audio should be in WAV format, 44.1kHz, 16-bit; and moving images should be MPEG-4 compression at a target bitrate of 56Mbit/s, progressive, 720 pixels horizontal resolution, 4:2:2 chroma subsampling, with audio as above. Providing only lower resolution material free of charge provides less public benefit and it is good practice in all cases to create a high resolution master.
Copyright and using other people’s images and content
The use of copyrighted material is a very important matter for any website. By signing up to the website, you agree to adhere to our contributor agreement, please refer to this for adding contributions to the map. If you would like more information on copyright law; please follow this resource from UCL for best practice. Everything added on the map comes under creative commons licensing.
Using Layers of London as a school teacher and within a classroom comes with some slightly different features to using it as a regular user. This guide will explain the features on offer to a school user, and how to use them. This page will be updated when these features are live.
The most exciting feature which gives its name to this website, a layer is historic data represented on top of the main Layers of London map area. The most common layer you will come across is a georeferenced* image of a historic map of London, such as the 1682 Morgan Map. Additionally, a layer may include other important information such as boundaries, places, and parish data. This guide explains the layers feature in detail and how to use them.