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Mastering Development

Knight Tour Backstracking with Warndorff rule improvement

The assignment said that I could improve it with Warnsdorff’s algorithm with int CountVisitedNeighbors(). Use this function to compare all of the knight’s possible moves. Choose the next move where the most neighbors have already been visited. *** static int BoardSize = 8; static int attemptedMoves = 0; / xMove[] and yMove[] define next move […]

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Mastering Development

How to using canvas draw rec ontouch android?

@Override protected void onDraw(Canvas canvas) { super.onDraw(canvas); this.canvas = canvas; } public void setCellSelect( int col, int row) { float startX = getX(col) + mParams.step / 2.0f; float startY = getY(row) + mParams.step * 0.7f; paint.setColor(Color.GRAY); canvas = new Canvas(); canvas.drawCircle(startX, startY, 40f, paint); invalidate() } @Override public boolean onTouchEvent(MotionEvent event) { if( MotionEvent.ACTION_DOWN){ int […]

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Mastering Development

How to save a screenshot of the image when car is detected? [closed]

CLASSES = ["background", "aeroplane", "bicycle", "bird", "boat", "bottle", "bus", "car", "cat", "chair", "cow", "diningtable", "dog", "horse", "motorbike", "person", "pottedplant", "sheep", "sofa", "train", "tvmonitor"] while True: frame = vs.read() frame = imutils.resize(frame, width=400) (fH, fW) = frame.shape[:2] if detections is not None: for i in np.arange(0, detections.shape[2]): confidence = detections[0, 0, i, 2] if confidence < […]

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Mastering Development

How to count only certain colours in an image

I learning javascript and I thought it would be interesting to make an app that counts tree rings. So I am trying to make a javascript app that counts tree rings to give you an estimate of the age of the tree. I can count how many colours there are between two points on the […]

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Development

Get ending line coordinates in javascript based on starting coordinates and predefined angle

I have a problem where I draw SVG lines on each click, what I need to do is draw only horizontal/vertical lines (90deg) or 45deg. line. The horizontal/vertical problem I already solved, where I’m stuck is drawing 45deg. line if I know the following information: startCoordX, startCoordY, endCoordX, endCoordY, angle(either positive 45deg or negative -45deg. […]

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Development

csv file not written as expected

I want to generate a csv file along with the name and time when a person was recognized, but while trying to the csv file. I just want to get the first time a person was recognized as entry time and add the next time he was recognized as a separate column. Currently while I […]

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Development

How can I get the class name of tensorflow models from zoo

recently I’ve been playing around with some of the models from the tensorflow object detection api zoo. Mainly, the coco ssd_inception, and the oidv4 ssd_mobilenet. The problem is when it comes to label the detections on the image. As an example when I run the oidv4 detector on this image it shows the labels that […]

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Development Python

Python: List isn’t being passed to function properly

I’m making a maze runner program as an assignment and I’m running into a nasty bug. This program isn’t complete so it’s probably not going to function but I’m just trying to get this one specific bug out of the way. It’s an Index Error and I don’t understand why it’s appearing. Basically, the list […]

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Development

Python Turtle Chessboard

I am supposed to draw a chessboard game using python. But once I enter the input that asks for start position, width, and height it draws the black rectangles outside the main chessboard rectangle. A grid of 8 x 8 rectangles has to be properly drawn with alternating black/whites rectangles. What am I doing wrong? […]

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Development

I have list of coordinates and My recuirement is to arrange it

I have list of coordinates to draw line. Actually Problem is these coordinates are not in sequence. Coordinate of endline is coordinates of startline for another line. If any line’s endline coordinates is not match with another line’s start coordinates then create list of connected line. Coordinates of lines are as startx,starty,endx,endy. Below is list […]