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swCHIP 1991 January
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swCHIP_95-1.bin
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demo
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wit4711
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lib
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help
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ui
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getdata.
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getdata.bin
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1995-12-09
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OPERATOR
getData --- user data generator
DESCRIPTION
The getData operator is a method of getting user defined data from images
during igraph execution. When an image object arrives at the getData input
port, the image is displayed and operators following getData will not be
executed until the user defines the data required. The type parameter specifies
the data type initially desired. The choices are:
points
lines
rectangles
circles
polylines
polygons
text
For example, you may want to define a polygon to extract a region of
interest from an image. When you have finished entering the data, select the
Apply button and getData will then send the resulting list of objects through
its output port. The Mode menu allows you to change the type of regions you
wish to enter. The Reset button will erase all your work so that you may
start over again. You may undo a point while defining a rectangle, circle,
or polyline by using the middle mouse button. In the case of a polyline, if
you continue to use the middle button the polyline will back up to the
point where it is erased. By selecting objects in Select mode, you can use
cut, copy, paste, and undo operations to arrange your objects appropriately.
Color may be changed for objects by using pressing the Color... button. The
font size and family may be changed with the Fonts... button. When entering
text, you may exit the text object by hitting the escape key or selecting a
new location. The various buttons to control getData are located at the bottom
of the image properties panel.