Hello,
I have been using VisAD for visualization apps and
I really like it. For one situation I wanted
a RangeSlider that would only allow endpoints
from a range of tickmarked values, such as 1.
to 100. in steps of 3.0.
The most obvious way to do this involved a
small change to a private method in the current
source for RangeSlider. In the main class I
replaced:
private float gripToValue(int pos, int width) {
return (((maxLimit - minLimit) * ((float) (pos -
GRIP_WIDTH))) /
(float) (width - (GRIP_WIDTH * 2))) + minLimit;
}
With:
private float gripToValue(int pos, int width) {
return adjustValue( (((maxLimit - minLimit) *
((float) (pos - GRIP_WIDTH))) /
(float) (width - (GRIP_WIDTH * 2))) + minLimit
);
}
public float adjustValue(float val) { return val ; }
And this allowed me to do what I need in a subclass.
But this means that I need to include the original
RangeSlider source, and to maintain it if it changes
in future versions of VisAD.
Is there a better way to create the RangeSlider I
want that would not involve future code maintaince?
Or would it be possible to have this sort of change
incorporated into the standard distribution?
Thanks,
Paul
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