|PanGazer – overlays|
PanGazer uses ‘status’ text fields to show camera settings, etc. (see the settings page). In addition, it can overlay data on the image that are directly related to the image itself rather than being simply numerical values. Currently two overlays are available:
If the bearing or horizon is not known you can set it, as described
PanGazer lets you set where North is for any image. Once North is set, by either method described on the Setting North page, PanGazer can show the bearing of the cursor and can also overlay compass points (‘N’, ‘S’, ‘SW’, etc.) at the top of the view to help give a sense of direction – as shown in the screenshot above.
The overlaid compass points will move appropriately as you change viewpoint and zoom. You can turn them off or on by clicking the Settings → Overlays → Show compass points menu item, or toggle the display of all your selected overlay and status displays using the Space Bar.
The view bearing is calculated at the position that the compass points are displayed (near the top of the view rather than at the centre point of the view). This is so the bearings remain static relative to the displayed image as the view is panned left or right.
The tilt of the image is the vertical angle (pitch) of the centre of the image relative to the horizon (positive is above the horizon) with a range from −90 through +90 degrees. For spherical images the position of the horizon is fixed and is calculated from the geometry of the image (the bottom edge of the image is at −90 degrees). For all other images (360° or not) you can set, edit, or delete the horizon position.
To see the tilt angles, first ensure that Settings → Overlays → Show tilt angles is checked (this is off by default).
As for setting North, there are two ways to set the horizon position:
The tilt overlay shows the tilt at the centre point of the view.
|PanGazer and these web pages were written by Mike Cowlishaw; Please send me any corrections, suggestions, etc.|
All content Copyright © Mike Cowlishaw,
2014–2020, except where marked otherwise. All rights reserved.
The pages here, and the PanGazer program, are for non-commercial
This page was last updated on 2020-01-31 by mfc.