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The Polyline Ruler mark enables the end user to create a polyline (several connected straight lines) that displays its total length.

Edit Mode

In Edit mode, end users create this mark as follows:

1. Click the Polyline Ruler button.
2. Click at the point where the polyline ruler starts.
3. Drag to the location of a vertice and click to create the vertice.
4. Drag and click to create each additional vertice.
5. Double-click the location where the polyline ruler ends.
6. Right-click the mark after it is created to activate the popup Edit menu.   

Polyline Ruler Length Measuring Modes

ImageGear provides two different length measuring modes for Ruler and PolyRuler annotations – Absolute and Relative, which can be changed using ImGearARTPage.AspectKind property.

• Absolute – In this mode, a change to the resolution of the underlying image will not affect the physical measurements of your marks (such as length of the ruler or poly-ruler) on the screen. The physical measurements of your marks on the screen are absolute.

• Relative – In this mode, a change to the resolution of the underlying image will affect the physical measurements of your marks (such as length of the ruler or poly-ruler) on the screen. The physical measurements of your marks on the screen are relative to the resolution of the underlying image.

 

 

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