The Rule Tool

The rule tool allows to correct the angle of a pic by adjusting a line on the horizon or on a vertical wall in the pic.

Clic on the pic for a larger size

• Start the Trimming/Angle Adjustement Tool of DPP.
• Clic on the “Show Rule” checkbox to show/hide the rule.
• Clic on the white squares to adjust the rule on the horizon.
• Clic on the green squares to apply the rotation.
• Clic on the red squares to hide the rule.

A faster method to use the rule is :

• Clic on the central circle to move the whole rule.
• SHIFT-Clic on the white squares to rotate the rule around its center.

• RIGHT-Clic on the squares. A menu appear allowing you to choose the squares size and the rule thickness.