The protractor annotation object (ANNOBJECT_PROTRACTOR) consists of two simple lines joined at a vertex to create an angle. With the automated functions, the first line of the protractor is started on a mouse-down event and completed on a second mouse-down event. The second line is completed on a third mouse-down event.
The class for Protractor Annotation objects is LAnnProtractor.
For information on flipping, reversing or rotating annotation objects, refer to Flipping, Reversing and Rotating Annotation Objects.
With low-level functions, you must define the size and position of the rectangle. Other applicable properties have the following defaults, which you can change:
Visible |
Defaults to FALSE. It can be changed using the LAnnotation::SetVisible function. |
Selected |
Defaults to FALSE. It can be changed using the LAnnotation::SetSelected function. |
Name |
Defaults to an empty string. It can be changed using the LAnnotation::SetNameOptions function. |
Line width |
Defaults to 0.75 points. It can be changed using the LAnnRuler::SetLineWidth function. (Note that when displayed, the line must have a minimum width of 1 pixel.) |
Line style |
Defaults to solid. It can be changed using the LAnnRuler::SetLineStyle function. |
ROP2 code |
Defaults to ANNROP2_COPY. It can be changed using the LAnnotation::SetROP2 function. |
Fill mode |
Defaults to transparent. It can be changed using the LAnnotation::SetFillMode function. |
Foreground color |
Defaults to red. It can be changed using the LAnnotation::SetForeColor function. |
Background color |
Defaults to white. It can be changed using the LAnnotation::SetBackColor function. |
Ruler show flags |
Defaults to not Show Length and not Show Tic Marks. These options can be changed using the LAnnRuler::SetShowFlags function and the LAnnRuler::SetTicMarkLength function. |
Protractor |
Defaults to displaying the inside (acute) angle, measured in degrees, to a precision of two places right of the decimal, and an arc radius of 30. These settings can be changed using the LAnnProtractor::SetProtractorOptions function. |
Fixed State |
Defaults to not fixed. It can be changed using the LAnnXXX::SetFixed function. |
Hyperlink |
Defaults to ANNLINK_NONE. It can be changed using the LAnnotation::SetHyperlink function. |
Tag (identifier) |
Defaults to 0. It can be changed using the LAnnotation::SetTag function. |
Window handle |
Defaults to NULL or the handle inherited from the container. It can be changed for all objects using LAnnContainer::SetWnd. |
User mode |
Defaults to design mode or the mode inherited from the container. It can be changed for all objects using LAnnContainer::SetUserMode. |
Related topics:
Low-Level Coordinate System for Annotations.
Annotation Objects - Automated Features
Using Rulers in Annotation Objects
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