When you complete the polygon it will instantly be painted
blue. Click on the blue object and the "Edit Object Info" window will appear so
you can name the
new object. Back to top
Open a jpg image file using the
If the image has not been previously annotated, you will be
warned "Cannot open map file". This file will be created automatically when you
outline an object and then save the data. Click on a point on the border of the
object you want to annotate. A small white square appears at the point where a
polygon is started. After the polygon is started, line segments join the points
that you create as you click around the object. Complete the polygon by clicking
on the small white square. Click "OK" in the Edit Object Info Window to save or
"Cancel" to delete the object. If you save the polygon, it will be saved in the
session, but a map file will not be created until you save the zMap
polygon file.
When you start a polygon a white square must appear. If it does not, then an object was not started. You may have to close the image file and reopen it again.
Once a polygon is created, and before it is completed, it can be erased by right clicking if you want to start over.
Be careful when opening an image file that the cursor does not inadvertently
start an object. If one does, be sure to Right-click it away.
When you complete the polygon it will instantly be painted
blue. Click on the blue object and the "Edit Object Info" window will appear so
you can name the
new object.
Back to top
Click on the object you have just created to open
the "Edit Object Info" window. The color of the object will change to red and
the points of the polygon will be displayed. Give the object a unique name.
Add your initials at the beginning of the "Notes" field. (This has not
been done in the images shown here.) You can add additional information in the
"Notes" space. You must Click OK on the Edit Object Info Window in order
for changes to be saved!
You must save the polygon file before opening
another image or closing the session, otherwise, all annotations made during the
session will be lost.
The Object Name List window can be opened under
Edit window. Click on the "poly" button adjacent to an object to highlight the
respective object in the image. Object Names can be changed in this list. You
must click OK to same any edits.
As the mouse rolls over an object in the image, the object will be
highlighted and the object name will appear in the white box above the image. If
two or more polygons overlap, the polygon on the top takes precedence. Imagine
you are looking down on the stack of polygons from above. You can determine the
relative position of the polygon in the stack in the Object Name
List, which can be opened in the Edit Menu
The objects created on previously opened objects can be
viewed by clicking on the arrows in the upper right hand corner. Objects from
previously viewd sections appear grey. Clicking the home icon brings back
the map file for the current image. These arrows bring back maps based on the
sequence in which they were opened NOT by the file number.
Written by Maurice Pescitelli Jr
Last modified 27 January, 2002 for version 2.0e7