Edit Marks

Creating and editing marks in an image are done by using a mouse in the Image Windows. The basic marking methods are summarized below:

• Creating a new point in the Photo4D database: clicking the left button at location (i,j) of image P does three things: First, it creates a new point in the Photo4D database; second, it puts a mark for the new point at the location of (i,j) in image P; and third, it sets the point as the current point.
• Selecting a current point: clicking the left button on a mark moves the current point to that mark.
• Deleting a point: double clicking the left button on a mark deletes the point of this mark, i.e., all the marks of this point in different images are deleted.
• Adding a mark to the current point: clicking the right button at location (p,q) of image P adds a new mark at location (p,q) of image P to the current point, if there is no mark for the current point in image P. If the current point already has a mark in image P, this mark is then moved location (p,q).
• Deleting a mark from a point: double clicking the right button on a mark deletes the mark. Corresponding marks in other images are not affected. If the point has no marks in any other images, then the point is deleted.
• Merging two points: clicking the right button on a mark of point X merges it to the current point, i.e., all the marks of point X becomes the marks of the current point.
• Editing the location of marks: Press the 'Shift' key and use the right mouse button to drag a mark to a new location. Specifically,
  1. Move the cursor to a mark,
  2. Press 'Shift' key and then the right mouse button but do not release,
  3. Move the cursor with the right button pressed to drag the mark wherever the cursor moves,
  4. Release the 'Shift' key and the right mouse button to leave the mark at the location where the button is released.

Note: Photo4D should be in Marking Mode for mark editing.

The MagGlass Window should also be used to make accurate marking.