shape

问题 I'm having hard time differentiating between shapes: Symmetric & Skewed There are some clear graphs. You don't need to think twice But here for example: The histogram makes me really confused Is it a right skewed? is it symmetric? Totally lost. :( I have tried many ways to get the right answers: comparing between mean=26.75 and median=25.5 values calculating the following distances: From min to the median is (less/equal or greater) than the one from median to the max. From the min value to Q1

问题 I need to display a large number (500+) of small circles on a form to simulate LEDs. However, these circles need to be quite small, around 8 or 9 pixels diameter. So far, in my testing, I've put together some code that creates an Led class that uses a Shape (Ellipse2D.Double) and displays it directly on the JFrame from the JFrame's paint method. This has led me to two observations/issues: 1) Firstly, unless there is an alternate method, Java appears to have trouble in drawing small circles.

问题 I've been working off a variant of the opencv squares sample to detect rectangles. It's working fine for closed rectangles, but I was wondering what approaches I could take to detect rectangles that have openings ie missing corners, lines that are too short. I perform some dilation, which closes small gaps but not these larger ones. I considered using a convex hull or bounding rect to generate a contour for comparison but since the edges of the rectangle are disconnected, each would read as a

问题 I see this question and I dont know how I can set id for each circles and access them from javascript codes and css codes? (e.g. click) 回答1: You can solve this by defining click objects when drawing the circles. Inside the loop drawing the circles (ref. the fiddle made by @MonicaOlejniczak): ... // push circle info as objects: circles.push({ id: i + "," + j, // some ID x: x, y: y, radius: radius }); ... Then: add a click handler to canvas correct mouse position loop through the objects

问题 it's possible insert a toolbutton in a tool bar with the shape like the back button used in the navigation bar? here is what I mean: thanks in advance! 回答1: You can't do it, at least not with the shape of a back button, the one with the arrow end on the left. backBarButtonItem is only a property of UINavigationItem. You can either use a rectangular button on your toolbar to go back (although I don't think Apple is fond of that... you should read the iOS Human Interface Guidelines), OR you can

问题 How to create shape with a hole in Java? I want to create circle with circular hole inside. If I just add Ellipse2D to a Path I am getting no holes. UPDATE I found, that winding rule controls that: public class Try_Holes_01 { public static void main(String[] args) { //final Path2D path = new Path2D.Double(Path2D.WIND_EVEN_ODD); final Path2D path = new Path2D.Double(Path2D.WIND_NON_ZERO); path.append(new Ellipse2D.Double(100,100,200,200), false); path.append(new Ellipse2D.Double(120,120,100

问题 How to make a grid with dog bone format in CSS and/or jQuery? The format of bone is this: And the grid would look like this, just that out instead of hexagonal and the content (image/text) inside format would bone: It is possible to create this format? 回答1: Here's how you draw bone. Demo HTML <div class="bone"> <div class="s1"></div> <div class="s2"></div> <div class="s3"></div> <div class="s4"></div> <div class="centerbone"> <div class="clean"></div> </div> </div> CSS .bone{ position:

问题 I am trying to move my agents from one vertex of my road network to another one which the following code. However, I got an error, saying that MOVE-TO expected input to be an agent but got NOBODY instead. If new location is already defined which this code as part of the agentset of slocation , where is the problem? to go ask citizens [start-movement] move end to start-movement let nearest-node min-one-of nodes [distance myself] set slocation nearest-node move-to slocation end to move ask

问题 well in my UIkit app I used this code: boxPath = CGPathCreateMutable(); CGPathMoveToPoint(boxPath, nil, center.x , center.y - 35); CGPathAddArcToPoint(boxPath, nil, center.x + 35, center.y - 35, center.x + 35, center.y + 35, 4.7); CGPathAddArcToPoint(boxPath, nil, center.x + 35, center.y + 35, center.x - 35, center.y + 35, 4.7); CGPathAddArcToPoint(boxPath, nil, center.x - 35, center.y + 35, center.x - 35, center.y, 4.7); CGPathAddArcToPoint(boxPath, nil, center.x - 35, center.y - 35, center

问题 I am writing a program that accepts coordinates from the user and drawing some shapes on the screen with stars(*) e.g Rectangle i.e rectangle=100,150,50,50 as x,y,width,height. how can I do it?? 回答1: I think that this tutorial is very useful for you: http://download.oracle.com/javase/tutorial/2d/geometry/primitives.html 回答2: What 'drawing with stars' is? If this is text mode with monospaced font, you'll need to print it in horizontal lines of stars, calculating right lengths. For rectangles