The Arrow chooser.-
In Mg5 when, in the Menu “Settings”, the item “Set Arrow” is selected, the Arrow Chooser will be made visible.
After defining a certain type of arrow, every time an open line is selected and the “Place Arrow” item in menu “Decor” (or the corresponding button in the horizontal toolbar) is pressed, this type of arrow will be added to the line.
If it is wanted to change the type of arrow, the same operation should be done: launch the Arrow Chooser and select a new type.
If several lines should have the same type of arrow, once selected this type, all the lines must be selected and clicking once on “Place Arrow” will add an arrow to all the lines selected.
When a line has an arrow added, it will be seen on Metagraf's screen with the same type of arrow always. To see the “real” arrow added, the Viewer should be used.
In the figure below it is shown the Arrow Chooser as it appears when launched:
AS can be seen, there are six different types of arrows. Each type can have six different sizes and six different apertures. The selection should be made clicking on the corresponding radio-button of the first three columns.
At the extreme right of the Chooser, there are two more fields where a double or single arrow (upper field) or a single arrow placed at the end (default) or at the beginning of the line (bottom field) can be selected.
It is possible also to choose a rounded tip (default) or an acute one. This is controlled by the two check boxes in the middle of the upper part. It should be said, that a line with an acute arrow is a little bit longer than the original one.
Finally, on the upper part, there are two buttons at both extremes. At right, the title “Unfill” means that the arrow added will have only the contour line. At left, the button “Clear” serves to remove an arrow added to a line by mistake. Both are “toggle” buttons. To change its state they should be clicked once more.
When everything is selected in due way, to change the arrow type making the one choose the default one, the bottom button, “Save the Arrow Type” should be clicked once. Doing that the Arrow Chooser will disappear.
Madrid, January 2006 |
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