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Using S curve parameter panels
An S curve parameter panel shows a graph with an S-shaped curve on it. These
curves are used for only three parameters: overall growth, leaf growth, and
fruit growth.
The name labels the parameter. The four values (for x and y values for the two points) are at the bottom of the graph. The x
and y bounds are at the start and end of each axis. The two points are shown by squares and labeled 1 and 2.
To change a value in an S curve parameter panel,
Click on one of the two points and drag it around (or press the keyboard arrow keys when the point is selected). You cannot drag the points into positions that will make the exponential equation described by the s curve fail. If you are using the mouse, the plant will respond to the change when you release the mouse button. -or- Click on one of the four values below the graph (or press Enter when the value is selected), type a new number into the dialog that appears, and click OK. S curves always have their bounds set at 0-1 for both axes. You should not change these bounds. You cannot change the unit on any S curves in the program. |
Updated: March 10, 1999. Questions/comments on site to webmaster@kurtz-fernhout.com. Copyright © 1998, 1999 Paul D. Fernhout & Cynthia F. Kurtz. |