Geo-referencing

The geo-referencing feature allows you to import a local or online IIIF manifest.json file which can be manipulated using simple geo-referencing tools.

To use the geo-referencing tool. Click “GeoReferencing” in the menu panel. Then choose whether to import a local or online file from the dropdown menu.

georeferencing

Import Local File

To import a local file, click “Local file” from the dropdown menu in the navigation panel.

georeferencing_local

This opens up a file dialog. Click “Browse…” to choose a file to import. After choosing your file, click the blue “Import” button.

georeferencing_localimport

For an example of how this works, click on the blue underlined text in the pop-up window, e.g. (example_images). The data will be downloaded to your computer, click “Browse…” to find it, upload it and practice with the dummy data.

Import Online File

To import an online file, click “Online file” from the dropdown menu in the navigation panel. In the pop-up dialog box, type in the URL of the IIIF manifest file and click on the blue import button.

georeferencing_onlineimport

For an example of how this works, click on the blue underlined text in the pop-up window, e.g. (example_images). Then click import to practice with dummy data.

Data Node Actions

Clicking on a data node will show an overview of information on this node and some more options as will be described below.

georeferencing_datanode

Bigger Image

To view a larger image, click on the image in the overview and an enlarged image will appear in a floating panel on the right.

georeferencing_biggerimage

Google

To open up a Google search for the image caption in a new browser tab click on “Google” in the overview.

georeferencing_google

IIIF Viewer

To view the image in an external viewer, click the “IIIF” Viewer button.

georeferencing_IIIF

Lite Georeference

To start geo-referencing, select the blue “Lite Georeference” button. This will display an editable map on top of the base map. On top of the map, 4 icons appear. Click the map in the middle to drag and drop it.

georeferencing_lite

Transparency

To toggle between a transparent and a non-transparent layer map, click the icon on the left.

georeferencing_transparency

Scale

The automatically selected option is the scale option. While this is selected, 4 blue squares appear at the corners of the layer map. Click and drag one of the boxes to change the size of the map.

georeferencing_scale

Distort

To distort the map, click the third button. Then click and drag at one of the squares at the corners of the map to distort the image.

georeferencing_distort

Rotate

To rotate the map, click the button on the right and click and drag one of the red circles that appears.

georeferencing_rotate

Context Actions

The Count of Data Nodes

The total number of data nodes displayed at any one time will appear in the context action toolbar at the top of the screen as highlighted below.

georeferencing_count

Thumbnail Mode vs Layer Mode

To view the geo-referenced maps in the position and orientation in which you have saved them, click “Layer mode” in the context action toolbar.

You can return to edit the maps by clicking “Thumbnail mode” in the context action toolbar.

georeferencing_thumbnail-layer

Export All

To export all data nodes in a .json format, click “Export all” in the context action toolbar.

georeferencing_exportall

Clear All

To remove all data nodes from the map, click the “Clear All” button in the context action toolbar.

georeferencing_clearall

Cancel

To discard any changes made to the layer map, click cancel in the context action toolbar.

georeferencing_cancel

Save & Exit

To save the changes made to the layer map, click “Save & Exit” in the context action toolbar. This will take you back to the thumbnail mode.

georeferencing_save-exit

Save & Export

To save and export the single edited data node, click “Save & Export” in the context action toolbar.

georeferencing_save-export