Section 14 Creating a User Chart/ Updating a Chart Manually 14-98
14.10.4 Creating a polygon and Alerts area (Area
object)
Create a polygon using all the vertices (3 or more) as one object. Alerts area is an area object that is
detected as a warning target (danger area).
A polygon and Alerts area can be created in the same way as for simple line and Alerts line
1. Click on the [Type] button on the drawing toolbar.
An icon list is opened.
Select an icon of a polygon or Alerts area. (Refer to "14.2.3
Selecting an object type".)
2. Click on the starting point position with the cursor.
The starting point is created and the property information of vertex 1 is displayed on the object
property dialog box.
Note
For an ENC object, the screen can be switched to the attribute editing screen by using the [Edit
Attribute] button.
For the details, refer to “ 14.10.9
Editing attributes of an object”.
3. Move the cursor to the next vertex.
The latitude and longitude of the cursor are displayed near the cursor.
The latitude and
longitude of the
starting point
(vertex 1) are
displayed.
"Edit Attribute" button
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