def __drawMarkerOnImage(self, mainImage, marker_id, location):
config = MarkersConfiguration()
color = config.color_for_marker(marker_id)
if marker_id % 2 == 0:
# even markers are crosses
mainImage.drawCross(location, color=color)
else:
# odd markers are squares
box = Box(location.translateBy(Vector(-9, -9)),
location.translateBy(Vector(9, 9)))
mainImage.drawBoxOnImage(box, color=color, thickness=4)
def _drawMarkerOnImage(self, mainImage, marker_id, location):
if not str(marker_id).isdigit():
mainImage.drawCross(location, color=MarkersConfiguration.COLOR_RED)
return
config = MarkersConfiguration()
color = config.color_for_marker(int(marker_id))
if int(marker_id) % 2 == 0:
# even markers are crosses
mainImage.drawCross(location, color=color)
else:
# odd markers are squares
box = Box(location.translateBy(Vector(-9, -9)),
location.translateBy(Vector(9, 9)))
mainImage.drawBoxOnImage(box, color=color, thickness=4)
def test_getDriftsCount_zeroZero(self):
vd = VelocityDetector()
actual = vd.excludeOutliers(
[Vector(0, 0),
Vector(-6, 41),
Vector(-6, 41),
Vector(-6, 41)])
# Assert
expected = [Vector(-6, 41), Vector(-6, 41), Vector(-6, 41)]
self.assertEqual(Vector.vectorArrayAsString(actual),
Vector.vectorArrayAsString(expected))
def test_getDriftsCount_2outliersAboveMedian(self):
vd = VelocityDetector()
actual = vd.excludeOutliers([
Vector(-5, 44),
Vector(-5, 44),
Vector(-5, 43),
Vector(30, 526),
Vector(30, 526)
])
# Assert
expected = [Vector(-5, 44), Vector(-5, 44), Vector(-5, 43)]
self.assertEqual(3, len(expected))
self.assertEqual(3, len(actual))
self.assertEqual(Vector.vectorArrayAsString(actual),
Vector.vectorArrayAsString(expected))
def __driftBetweenFramesInDataFrame(self, endIndex, nextIndex):
cumulativeYDrift = 0
cumulativeXDrift = 0
while nextIndex < endIndex:
nextIndex = nextIndex + 1
cumulativeYDrift += self.__getYDrift(nextIndex)
cumulativeXDrift += self.__getXDrift(nextIndex)
return Vector(cumulativeXDrift, cumulativeYDrift)
def test_getDriftsCount_outlierIsMinimal(self):
vd = VelocityDetector()
actual = vd.excludeOutliers(
[Vector(47, -408),
Vector(-6, 41),
Vector(-6, 41),
Vector(-6, 41)])
# Assert
expected = [Vector(-6, 41), Vector(-6, 41), Vector(-6, 41)]
self.assertEqual(3, len(expected))
self.assertEqual(3, len(actual))
self.assertEqual(Vector.vectorArrayAsString(actual),
Vector.vectorArrayAsString(expected))
def driftBetweenFrames(self, fromFrameID, toFrameID):
# type: (int, int) -> Vector
if fromFrameID < self.minFrameID() or toFrameID < self.minFrameID():
#return Vector(0,0)
return None
if fromFrameID > self.maxFrameID() or toFrameID > self.maxFrameID():
#return Vector(0, 0)
return None
if (fromFrameID > toFrameID):
drift = self.driftBetweenFrames(toFrameID, fromFrameID)
return Vector(-(drift.x), -(drift.y))
if (fromFrameID == toFrameID):
return Vector(0, 0)
return self.__getDriftBetweenTwoFrames(fromFrameID, toFrameID)
def getCrabLocation_bck(self):
if self.__user_clicked_in_right_half(
) and self.__user_clicked_in_bottom_half():
# user marked crab is on "imageThis", which is the bottom right image
offsetOfCrabImageFrom0x0 = Vector(-self.__boxSize, -self.__boxSize)
if self.__user_clicked_in_left_half(
) and self.__user_clicked_in_bottom_half():
# user marked crab is on "imageFirst", which is bottom left image
offsetOfCrabImageFrom0x0 = Vector(0, -self.__boxSize)
if self.__user_clicked_in_right_half(
) and self.__user_clicked_in_top_half():
# user marked crab is on "imageLast", which is top right image
offsetOfCrabImageFrom0x0 = Vector(-self.__boxSize, 0)
if self.__user_clicked_in_left_half(
) and self.__user_clicked_in_top_half():
# user marked crab is on "imageMiddle", which is top left image
offsetOfCrabImageFrom0x0 = Vector(0, 0)
def driftBetweenFrames(self, fromFrameID, toFrameID):
# type: (int, int) -> Vector
if fromFrameID < self.__driftData.minFrameID(
) or toFrameID < self.__driftData.minFrameID():
# return Vector(0,0)
return None
if fromFrameID > self.__driftData.maxFrameID(
) or toFrameID > self.__driftData.maxFrameID():
# return Vector(0, 0)
return None
if (fromFrameID == toFrameID):
return Vector(0, 0)
driftX = self.getXDriftPixels(fromFrameID, toFrameID)
driftY = self.getYDriftPixels(fromFrameID, toFrameID)
return Vector(driftX, driftY)
def __determineLocationOfTextBox(self, location):
boxHeight = 25
boxWidth = 50
if location.y < boxHeight:
translateYBy = 5
else:
translateYBy = (boxHeight + 5) * (-1)
if location.x < boxWidth:
translateXBy = 5
else:
translateXBy = (boxWidth + 5) * (-1)
topLeftOfTextBox = location.translateBy(
Vector(translateXBy, translateYBy))
bottomRightOfTextBox = topLeftOfTextBox.translateBy(
Vector(boxWidth, boxHeight))
textBox = Box(topLeftOfTextBox, bottomRightOfTextBox)
return textBox
def __driftToNearbyFrame(self, index, nearbyFrameID):
framesToJump = int(self.__getFrameID(index)) - nearbyFrameID
yPixelsDriftPerFrame = self.__pixelsYDriftPerFrame(index)
yPixelsAway = math.floor(yPixelsDriftPerFrame * framesToJump)
xPixelsDriftPerFrame = self.__pixelsXDriftPerFrame(index)
xPixelsAway = math.floor(xPixelsDriftPerFrame * framesToJump)
return Vector(xPixelsAway, yPixelsAway)
def getCrabLocation(self):
if self.__user_clicked_in_right_half():
xOffset = -self.__boxSize
else:
xOffset = 0
if self.__user_clicked_in_bottom_half():
yOffset = -self.__boxSize
else:
yOffset = 0
offsetOfCrabImageFrom0x0 = Vector(xOffset, yOffset)
return self.__crabCoordinatesOnItsFrame(self.getFrameIDOfCrab(),
offsetOfCrabImageFrom0x0)
def getImgObj(self):
# type: () -> Image
imgObj = self.frameDeco.getImgObj().copy()
frame_id = self.frameDeco.getFrameID()
distancePix = int(self.__redDotsData.getDistancePixels(frame_id))
#draw 8 grid squares along X and Y axis.
for i in range(-4, 4):
#draw 9 X-lines. One through midpoint between red dots (i=0) and then 4 north-west and 4 south-east
point = self.__startPoint.translateBy(
Vector(i * distancePix, i * distancePix))
self.__drawGridX(imgObj, point, 0)
return imgObj
def ttest_getDriftsCount_outlierIsSymmetricalOverZero(self):
vd = VelocityDetector()
actual = vd.excludeOutliers(
[Vector(0, 30), Vector(0, 30),
Vector(0, -32)])
# Assert
expected = [Vector(0, 30), Vector(0, 30)]
self.assertEqual(2, len(expected))
self.assertEqual(2, len(actual))
self.assertEqual(Vector.vectorArrayAsString(actual),
Vector.vectorArrayAsString(expected))
def test_getDriftsCount_twoValuesButVeryDifferent(self):
vd = VelocityDetector()
actual = vd.excludeOutliers([Vector(47, -408), Vector(-6, 41)])
# Assert
expected = [Vector(47, -408), Vector(-6, 41)]
self.assertEqual(2, len(expected))
self.assertEqual(2, len(actual))
self.assertEqual(Vector.vectorArrayAsString(actual),
Vector.vectorArrayAsString(expected))
def __getDriftBetweenTwoFrames(self, fromFrameID, toFrameID):
#assuming fromFrameID is less than or equal to toFrameID and both are within valid range
startingFrameIDInDataFrame = self.__nextFrameIDInFile(fromFrameID)
startIndex = self.__getIndexOfFrame(startingFrameIDInDataFrame)
endingFrameIDInDataFrame = self.__nextFrameIDInFile(toFrameID)
endIndex = self.__getIndexOfFrame(endingFrameIDInDataFrame)
driftToStartingFrame = self.__driftToNearbyFrame(
startIndex, fromFrameID)
cumulativeDrift = self.__driftBetweenFramesInDataFrame(
endIndex, startIndex)
driftFromEndingFrame = self.__driftToNearbyFrame(endIndex, toFrameID)
totalYDrift = cumulativeDrift.y + driftToStartingFrame.y - driftFromEndingFrame.y
totalXDrift = cumulativeDrift.x + driftToStartingFrame.x - driftFromEndingFrame.x
return Vector(totalXDrift, totalYDrift)