draw

问题 in my application on ontouch of screen i'm getting the coordinates(x.y), after that on that position i'm drawing a circle.but when i'm drawing a circle on that position.it always draw a circle on upper left side corner of images on some pt.s .i'm not getting why this is happening.please help me. public boolean onTouch(View v, MotionEvent event) { // TODO Auto-generated method stub if(event.getAction()==MotionEvent.ACTION_UP) { Log.d("position", event.getX() + "-" + event.getY()); System.out

问题 I'm trying to add a background image to some text, I'm hoping to do this by using MemoryDC to write text to an image which will then be placed in my GridSizer. Everything works as I want it to with the exception that I cannot use an existing image to draw text onto, I have to create a new, empty, bitmap which is pointless for me because it puts me back where I started. Here is my code, it places a white box into my GridSizer with text drawn onto it: w, h = 150,64 bmp = wx.EmptyBitmap(w,h) dc

问题 I'm trying to add a background image to some text, I'm hoping to do this by using MemoryDC to write text to an image which will then be placed in my GridSizer. Everything works as I want it to with the exception that I cannot use an existing image to draw text onto, I have to create a new, empty, bitmap which is pointless for me because it puts me back where I started. Here is my code, it places a white box into my GridSizer with text drawn onto it: w, h = 150,64 bmp = wx.EmptyBitmap(w,h) dc

问题 How do I draw an image in a tkinter window (I'm using python 3.3)? I'm looking for a statement which would draw an image at a given position on a tkinter window. yeah... Any answers would be appreciated. And here's the source code of the program (if it can be called that) that I want to use the code in, in case you need it. from tkinter import * class craftClass(): def __init__(self, x = 80, y = 80, xmotion = 0, ymotion = 0, health = 20): self.xPos, self.yPos = x, y self.dx, self.dy = xmotion

问题 Has anybody experience on drawing objects, by vertices e.g. Polygons and obtaining their surface and perimeter. The geometry will be drawn by hand using vertices or coordinates similar to https://play.google.com/store/apps/details?id=de.hms.xconstruction and then shapes formed. I need to obtain the surface of these closed shapes. Is there any available example on the net? Thanks in advance. 回答1: I think the following piece of code could be a good start. It basically draws lines between all

问题 Has anybody experience on drawing objects, by vertices e.g. Polygons and obtaining their surface and perimeter. The geometry will be drawn by hand using vertices or coordinates similar to https://play.google.com/store/apps/details?id=de.hms.xconstruction and then shapes formed. I need to obtain the surface of these closed shapes. Is there any available example on the net? Thanks in advance. 回答1: I think the following piece of code could be a good start. It basically draws lines between all

问题 i tried in that way but i didnt get the needed results: System.Drawing.Point[] p = new System.Drawing.Point[6]; p[0].X = 0; p[0].Y = 0; p[1].X = 53; p[1].Y = 111; p[2].X = 114; p[2].Y = 86; p[3].X = 34; p[3].Y = 34; p[4].X = 165; p[4].Y = 7; g = PictureBox1.CreateGraphics(); g.DrawPolygon(pen1, p); what i want to do is to draw a polygon in picturebox which is defined with diffrent colors and according to the rates (the number of corner and coordinates of the edges ) 回答1: Create an xOffset

问题 Is it possible for me to draw ABOVE all controls on a form ? I have some controls ( textboxes , buttons , COM objects ) on my form, and I wish to draw ON them, overriding any pixels previously drawn by them. I am using Windows Forms on C# . NOTE: the Graphics class draws under the controls... 回答1: Take a look at the code in this article: Draw Over WinForms Controls The author has created a component that (as he describes it) is like a piece of glass over your form. Your code then draws on

问题 How to display only the corners of a UIView? let view = UIView() view.layer.borderColor = UIColor.white.cgColor view.layer.borderWidth = 2 let maskframe = UIView(frame: CGRect(x:0, y:0, width:view.frame.width, height:view.frame.height)) view.layer.mask = maskframe.layer.` This masks only the right edge and i dont understand how it works either. 回答1: Try with this class , here I use a custom view drawing using CoreGraphics , added some Inspectable variables to help with customization // //

问题 I'm new with Google Charts and I am not able to obtain a fine result with the texts surrounding the graph. This is how my chart looks: As you can see, it does cut both Horizontal-Axis and Legends, so the final result is not as good as It could be. Is there a way to solve this? I've been reading the official documentation and some posts from here, but I haven't found the way to do this. Recap: How do we modify the legend or the axis texts so they are fully visible? 回答1: After some time