Slicing in response to time change
This script shows how you can use Python callbacks to change a slice plane as a function of the current time state. We create a plot, slice it along its X-axis, and then install a Python callback function that modifies the slice plane as a function of the new time state.
# Set up a plot OpenDatabase("~/data/wave/wave.visit") AddPlot("Pseudocolor", "pressure") # Add a slice operator that keeps the slice in 3D and slices along the # X-axis as a percentage of the extents. AddOperator("Slice") s = SliceAttributes() s.project2d = 0 s.originType = s.Percent s.axisType = s.XAxis SetOperatorOptions(s) DrawPlots() # This callback function computes the percent through the time series for the # current time state and uses that percentage as a percentage for the slice def onSetTimeSliderState(timeState, userData): nts = TimeSliderGetNStates() percent = 0. if nts > 1: percent = float(timeState) / float(TimeSliderGetNStates()-1) s.originPercent = percent * 100. SetOperatorOptions(s) RegisterCallback("SetTimeSliderStateRPC", onSetTimeSliderState, s)