def benchmark():
# store current canvas size and camera settings
prevDim = voreen.getPropertyValue(canvas, "canvasSize")
prevCam = voreen.getPropertyValue(processor, cameraProp)
# resize canvas and initialize camera
voreen.setPropertyValue(canvas, "canvasSize", canvasDim)
voreen.setPropertyValue(processor, cameraProp, initCam)
voreen.repaint()
# make sure all Qt events have been processed before starting
voreenqt.processEvents()
# start loop for animation
counter = 0
angleIncr = 2 * math.pi / frames # do a full rotation
start = time.time()
while (counter < frames):
counter = counter + 1
# update camera for current frame
voreen.rotateCamera(processor, cameraProp, angleIncr, rotAxis)
# render network state
voreen.repaint()
end = time.time()
# restore canvas and camera
voreen.setPropertyValue(canvas, "canvasSize", prevDim)
voreen.setPropertyValue(processor, cameraProp, prevCam)
voreen.repaint()
# evaluate results
runtime = (end - start)
if runtime > 0:
fps = frames / runtime
else:
fps = -1
message = 'frames: %i\n' % (frames)
message += 'total runtime: %f\n' % (runtime)
message += 'fps: %f' % (fps)
print message
voreenqt.messageBox("Finished!\n" + message)
def benchmark():
# store current canvas size and camera settings
prevDim = voreen.getPropertyValue(canvas, "canvasSize")
prevCam = voreen.getPropertyValue(processor, cameraProp)
# resize canvas and initialize camera
voreen.setPropertyValue(canvas, "canvasSize", canvasDim)
voreen.setPropertyValue(processor, cameraProp, initCam)
voreen.repaint()
# make sure all Qt events have been processed before starting
voreenqt.processEvents()
# start loop for animation
counter = 0
angleIncr = 2*math.pi / frames # do a full rotation
start = time.time()
while (counter < frames):
counter = counter + 1
# update camera for current frame
voreen.rotateCamera(processor, cameraProp, angleIncr, rotAxis)
# render network state
voreen.repaint()
end = time.time()
# restore canvas and camera
voreen.setPropertyValue(canvas, "canvasSize", prevDim)
voreen.setPropertyValue(processor, cameraProp, prevCam)
voreen.repaint()
# evaluate results
runtime = (end - start)
if runtime > 0:
fps = frames / runtime
else:
fps = -1
message = 'frames: %i\n' % (frames)
message += 'total runtime: %f\n' % (runtime)
message += 'fps: %f' %(fps)
print message
voreenqt.messageBox("Finished!\n" + message)
# Consecutively loads the ten time steps of the golf ball data set
# (http://www.voreen.org/files/volumedynamics.zip),
# and takes a snapshot of each frame.
import voreen
import voreenqt
golfBallPath = voreen.getBasePath() + "/data/volumes/golfball"
snapshotPath = voreen.getBasePath() + "/data/screenshots"
for i in range(0, 10):
# usage: voreen.loadVolume(filepath, [VolumeSource processor])
voreen.loadVolume(golfBallPath + "/golfball0_%d-512x256x256.dat" % (i))
# alternative: use VolumeSeriesSource as data supplier
#voreen.setPropertyValue("VolumeSeriesSource", "step", i)
voreen.repaint()
voreenqt.processEvents() # to see each frame on screen
voreen.snapshot(snapshotPath + "/golfball0_%d.png" % (i))
voreenqt.messageBox("Wrote ten frames to %s/golfball0_*.png" % snapshotPath)