> I would like to autoscale the y-axis in a X-Y plot with the minimum > set always to 0 and while the maximum autoscales. I tried to set > y-scale start and minimum (using the XY plot properties) but still the > y range minimum is set to the minimum value of the data. I would like > the y-axis scale to be set at 0 for the minimum and the max. of the > data for the maximum. Can anyone help with this. Thanks.
You can either turn off autoscaling and set the max Y Scale each time you write data to the graph. There are some subVIs in the Picture Examples for determining the max and min using pretty much the same algorithm that LV uses. Or you can write the data to LV and immediately set the min to zero leaving autoscaling on. You might try this in a single property node or in a tightly sequenced set of property nodes, possibly with panel updates turned off when doing it. Greg McKaskle
