Inobitec DICOM Viewer

2.25. Graphic Label Tool

2.25.1 General

This tool allows you to create graphic labels (as arrows, ellipses, polygons and text fields) on an image. The labels will be applied during the entire session of working with the series. Labels are attached to specific points on the image and paned, scaled or rotated together with the image.

The button design depends on the selected tool. The default tool is Pointer, and the tool selection button looks like this: PIC .

To activate/deactivate the selected tool, click on the left side of the graphic label tool selection button. To select and activate one of the tools, click on the right side of the tool selection button and select the tool.

This tool is also available from the image context menu and from the Image main menu item.

2.25.2 Create Labels

To create a label on an image:

  1. Activate the Pointer tool. The button will look as follows: PIC .
  2. Click the left mouse button at the location the arrow should point to.
  3. Click the mouse where the opposite end of the arrow should be. The pointer will be displayed (Fig. 2.49.
  4. To cancel an incomplete creation, press Esc.



To create a text label on an image:

  1. Activate the Text tool. The button will look as follows: PIC .
  2. Click the left mouse button where the text should be located.
  3. Enter the text in the dialog box and click OK to add it to the image, or Cancel to cancel the action.

To create a polygon on an image:

  1. Activate the Polygon tool. The button will look as follows: PIC .
  2. Click the left mouse button where the first point of the polygon should be located.
  3. Move the cursor to the location of the next point. The lines connecting the points of the polygon will be displayed on the screen.
  4. Click the left mouse button to save the point.
  5. Repeat Steps 3 and 4 until the last but one point is set.
  6. Right-click the mouse to create the last point. The polygon is complete (Fig. 2.50).
  7. To cancel an incomplete creation, press Esc.



To create an ellipse on an image:

  1. Activate the Ellipse tool. The button will look as follows: PIC .
  2. To build an ellipse, just build the rectangle the ellipse is inscribed into. Click the left mouse button where the first angle of the rectangle should be located.
  3. Move the cursor to the location of the opposite angle. The ellipse will be displayed on the screen.
  4. Click the left mouse button to fix the opposite angle. The ellipse is complete (Fig. 2.51).
  5. To cancel an incomplete creation, press Esc.



2.25.3 Actions with Labels

To work with a label, activate the tool that was used to create it. The Viewer allows you to perform the following actions with labels:

To set the default render parameters, click on the right side of the PIC button and select the command Set default annotation render params.

To delete all objects, click the Delete all Annotations and Measurements PIC button or select the corresponding item from the image context menu. In the dialog box that appears, Click Yes to delete, or No to cancel. If you want the Viewer to always delete annotations and measurements without this confirmation, check the box Don‘t show this dialog again and click Yes. If you want the Viewer to show the confirmation dialog, check the box Ask for delete all annotations and measurements (see Section 15.4.1). Attention! All measurements and other objects created manually will be deleted.