def testSetAllLayersInvisible( self ):
tiling = Tiling((900,400), blockSize=100)
tp = TileProvider(tiling, self.sims)
tp.requestRefresh(QRectF(100,100,200,200))
tp.waitForTiles()
tiles = tp.getTiles(QRectF(100,100,200,200))
for tile in tiles:
aimg = byte_view(tile.qimg)
self.assertTrue(np.all(aimg[:,:,0:3] == self.GRAY3))
self.assertTrue(np.all(aimg[:,:,3] == 255))
self.layer1.visible = False
self.layer2.visible = False
self.layer3.visible = False
tp.requestRefresh(QRectF(100,100,200,200))
tp.waitForTiles()
tiles = tp.getTiles(QRectF(100,100,200,200))
for tile in tiles:
# If all tiles are invisible, then no tile is even rendered at all.
assert tile.qimg is None
self.layer1.visible = False
self.layer2.visible = True
self.layer2.opacity = 1.0
self.layer3.visible = False
tp.requestRefresh(QRectF(100,100,200,200))
tp.waitForTiles()
tiles = tp.getTiles(QRectF(100,100,200,200))
for tile in tiles:
aimg = byte_view(tile.qimg)
self.assertTrue(np.all(aimg[:,:,0:3] == self.GRAY2))
self.assertTrue(np.all(aimg[:,:,3] == 255))
def testEverythingDirtyPropagation(self):
self.lsm.append(self.layer2)
tiling = Tiling((900, 400), blockSize=100)
tp = TileProvider(tiling, self.pump.stackedImageSources)
try:
tp.requestRefresh(QRectF(100, 100, 200, 200))
tp.join()
tiles = tp.getTiles(QRectF(100, 100, 200, 200))
for tile in tiles:
aimg = byte_view(tile.qimg)
self.assertTrue(np.all(aimg[:, :, 0:3] == self.CONSTANT))
self.assertTrue(np.all(aimg[:, :, 3] == 255))
NEW_CONSTANT = self.CONSTANT + 1
self.ds2.constant = NEW_CONSTANT
tp.requestRefresh(QRectF(100, 100, 200, 200))
tp.join()
tiles = tp.getTiles(QRectF(100, 100, 200, 200))
for tile in tiles:
aimg = byte_view(tile.qimg)
self.assertTrue(np.all(aimg[:, :, 0:3] == NEW_CONSTANT))
self.assertTrue(np.all(aimg[:, :, 3] == 255))
finally:
tp.notifyThreadsToStop()
tp.joinThreads()
def setCacheSize(self, cache_size):
if cache_size != self._tileProvider._cache_size:
self._tileProvider = TileProvider(self._tiling,
self._stackedImageSources,
cache_size=cache_size)
self._tileProvider.sceneRectChanged.connect(
self.invalidateViewports)
def reset(self):
"""Reset rotations, tiling, etc. Called when first initialized
and when the underlying data changes.
"""
DEFAULT_TILE_WIDTH = 512
self.resetAxes(finish=False)
tileWidth = self.tileWidth
if self.tileWidth is None:
tileWidth = DEFAULT_TILE_WIDTH
self._tiling = Tiling(self._dataShape,
self.data2scene,
name=self.name,
blockSize=tileWidth)
self._tileProvider = TileProvider(self._tiling,
self._stackedImageSources)
self._tileProvider.sceneRectChanged.connect(self.invalidateViewports)
if self._dirtyIndicator:
self.removeItem(self._dirtyIndicator)
del self._dirtyIndicator
self._dirtyIndicator = DirtyIndicator(self._tiling)
self.addItem(self._dirtyIndicator)
self._dirtyIndicator.setVisible(False)
def reset(self):
"""Reset rotations, tiling, etc. Called when first initialized
and when the underlying data changes.
"""
self.resetAxes(finish=False)
self._tiling = Tiling(self._dataShape, self.data2scene, name=self.name)
self._brushingLayer = TiledImageLayer(self._tiling)
self._tileProvider = TileProvider(self._tiling, self._stackedImageSources)
self._tileProvider.sceneRectChanged.connect(self.invalidateViewports)
if self._dirtyIndicator:
self.removeItem(self._dirtyIndicator)
del self._dirtyIndicator
self._dirtyIndicator = DirtyIndicator(self._tiling)
self.addItem(self._dirtyIndicator)
def testOutOfViewDirtyPropagation( self ):
self.lsm.append(self.layer1)
tiling = Tiling((900,400), blockSize=100)
tp = TileProvider(tiling, self.pump.stackedImageSources)
# Navigate down to the second z-slice
self.pump.syncedSliceSources.through = [0,1,0]
tp.requestRefresh(QRectF(100,100,200,200))
tp.waitForTiles()
# Sanity check: Do we see the right data on the second
# slice? (should be all 1s)
tiles = tp.getTiles(QRectF(100,100,200,200))
for tile in tiles:
aimg = byte_view(tile.qimg)
self.assertTrue(np.all(aimg[:,:,0:3] == 1))
self.assertTrue(np.all(aimg[:,:,3] == 255))
# Navigate down to the third z-slice
self.pump.syncedSliceSources.through = [0,2,0]
tp.requestRefresh(QRectF(100,100,200,200))
tp.waitForTiles()
# Sanity check: Do we see the right data on the third
# slice?(should be all 2s)
tiles = tp.getTiles(QRectF(100,100,200,200))
for tile in tiles:
aimg = byte_view(tile.qimg)
self.assertTrue(np.all(aimg[:,:,0:3] == 2))
self.assertTrue(np.all(aimg[:,:,3] == 255))
# Navigate back up to the second z-slice
self.pump.syncedSliceSources.through = [0,1,0]
tp.requestRefresh(QRectF(100,100,200,200))
tp.waitForTiles()
for tile in tiles:
aimg = byte_view(tile.qimg)
self.assertTrue(np.all(aimg[:,:,0:3] == 1))
self.assertTrue(np.all(aimg[:,:,3] == 255))
# Change some of the data in the (out-of-view) third z-slice
slicing = (slice(None), slice(100,300), slice(100,300),
slice(2,3), slice(None))
slicing = tuple(slicing)
self.ds1._array[slicing] = 99
self.ds1.setDirty( slicing )
# Navigate back down to the third z-slice
self.pump.syncedSliceSources.through = [0,2,0]
tp.requestRefresh(QRectF(100,100,200,200))
tp.waitForTiles()
# Even though the data was out-of-view when it was
# changed, it should still have new values. If dirtiness
# wasn't propagated correctly, the cache's old values will
# be used. (For example, this fails if you comment out the
# call to setDirty, above.)
# Shrink accessed rect by 1 pixel on each side (Otherwise,
# tiling overlap_draw causes getTiles() to return
# surrounding tiles that we haven't actually touched in
# this test)
tiles = tp.getTiles(QRectF(101,101,198,198))
for tile in tiles:
aimg = byte_view(tile.qimg)
# Use any() because the tile borders may not be
# perfectly aligned with the data we changed.
self.assertTrue(np.any(aimg[:,:,0:3] == 99))
