#Zoom earth historical imagery zip

You can use the Swipe tool for comparison of both imagery and data layers within two view modes (Horizontal and Vertical). Preview image - Displays QImagery preview and includes a link to the QImagery application.Īs you can see past imagery tool is a powerful way to research historical imagery and view change over time. Preview on map - This allow you to view the rectified imagery or highlight the footprint of an unrectified image on map, without adding it as a layer or place.Īdd as layer - This adds imagery mosaic as a layer to the layers list.Īdd as a place - This adds imagery footprint to the places list. Selection of a rectified image(s) and an unrectified image(s) have the following icon options.

#Zoom earth historical imagery zip

ZIP these can be re-imported as a layer and the Queensland Globe will use the world file to place the geolocated historical imagery frame. The Preview image option displays a larger preview of the image selected, and a link to QImagery is available below this preview. The image and associated world file can be downloaded from QImagery.

Unrectified frames - The footprint of each of these historical imagery frames can be added as a place, allowing you to retain the attributes for that image.

These can be added as layers to your map directly from the Past imagery tool.

Rectified images - Typically more recent imagery that have been stitched together to form a mosaic.

Many images align with the map coordinate system used by Globe, which means that we can use the imagery as a base map and overlay it with other layers of information. The Past Imagery tool offers access to a large catalogue of aerial imagery projects and historical imagery frames that can be incorporated into your Queensland Globe map. The imagery available through the Past imagery tool will correctly reflect the adjusted map extent once this has been selected.

Click the orange Refresh past imagery button if this occurs.

The message can be manually dismissed or auto dismissed after 15 secs.

A warning message is displayed on the screen if the map extent has been adjusted.

Click Close gallery to close the gallery.

You can select to view images within the gallery by large images or small images.With the gallery open, the start of capture date is displayed on the image thumbnails.Click View gallery to display the thumbnails of the available imagery that falls within the current map extent for the date selected.

Selecting the Back To (Year) button at top left will return to the timeline to view other years.You can use the Previous project/Next project options down along the bottom right to toggle through the search results to find the imagery that best suits.Further information, such as the title of the project, precise date of capture (start and end) and scale will be displayed. Select the month to display a thumbnail of the image, listed by project.When no imagery projects are listed for that month, the month is greyed out and will not allow for selection. The count of imagery results will be shown per year and then month.Use the arrows pointing left/right to explore adjacent earlier/later years. Click on a year to select it, the timeline will display prominently the months when the imagery was captured.Click on the arrows pointing left/right to explore earlier/later years. The timeline displayed along the bottom of the screen shows the year of imagery capture with the number below showing how many images were captured.Zoom in to the point where the Past Imagery tool icon is highlighted, then click on the icon.The Past imagery tool is scale dependant, zoom in to a scale of at least than 1:50,000 to use it, when the button is greyed out it is unavailable. The Past imagery tool is located in the lower right corner of the screen, navigate to your selected area then open the past imagery tool.