Protractor Annotation Object - Raster imaging C++ Class Library Help

Protractor Annotation Object

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:

Implementing Annotations.

Types of Annotations.

Low-Level Coordinate System for Annotations.

Annotation Objects - Automated Features

Using Rulers in Annotation Objects

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