coordinates

Let's suppose I've got an image which shows its source in a scaled way, how could i use a MouseMove event to show in a label or textblock the pixel position in which the cursor is? (I need the pixel coordinates not the coordinates of the image relative to its size) Thanks in advance. You can find out the actual pixel height and width from the ImageSource. ImageSource imageSource = image.Source; BitmapImage bitmapImage = (BitmapImage) imageSource ; Now since you got the image displayed in Image control. You can easily map the mouse position to the Pixel scale. pixelMousePositionX = e

It's past several days since I started using this function and have not yet succeeded in obtaining valid results. What i want is basically convert acceleration vector from device's coordinates system, to real world coordinates . I' know that is possible because i have acceleration in relative coordinates and i know the orientation of the device in real world system. Reading Android developers seems that using getRotationMatrix() i get R = rotation matrix. So if i want A (acceleration vector in world system) from A' (acceleration vector in phone system) i must do simply: A=R*A' But i cant'n

I got an image with a couple of diamond put side by side like on the image below The only coordinates I know on the image are the top corners (green text). When I click on the image I get the coordinates of that point, but I'm not able to get which diamond I'm on. For example I click on the red dot, how do I know that x:260, y:179 = the top diamond ? And the blue belongs to the left ? etc... Thank you very much for your help. EDIT: I finally used Canvas, but I think SVG would have worked as well for what I needed to do. I see two possible approaches: direct check whether a point is inside a

I understand that WPF coordinates are different from "real" screen coodinates (pixel coordinates) if the computer is not using the default DPI setting. In my program I want to (1) figure out which monitor a WPF window is on and (2) open another window in the bottom-left corner of the same monitor. I heard there is no equivalent of Screen for WPF so I use the WinForms version, as follows, which works fine at the default 96 DPI: public void ChooseInitialPosition(Window w) // w is some other window { var scr = System.Windows.Forms.Screen.FromRectangle( new System.Drawing.Rectangle((int)w.Left,

I'm looking for a good way to get cells X-Y position in a table. (do not confuse it with css-position, I am looking for X and Y coordinate in Cartesian coordinate system). As we know, we can get particular cell in a table using ex: $('#grid')[0].rows[5].cells[7] . But, what if I want to get the value 5x7 when I click on particular cell, i.e: $('#grid td').click(function(){ alert("My position in table is: " + myPosition.X + "x" + myPosition.Y); }); I guess, the easiest way is to add innerHTML, ID or CSS class to every cell ( <td class="p-5x7"> etc.) when creating table in back end, then parse

For my game I need functions to translate between two coordinate systems. Well it's mainly math question but what I need is the C++ code to do it and a bit of explanation how to solve my issue. Screen coordiantes: a) top left corner is 0,0 b) no minus values c) right += x (the more is x value, the more on the right is point) d) bottom +=y Cartesian 2D coordinates: a) middle point is (0, 0) b) minus values do exist c) right += x d) bottom -= y (the less is y, the more at the bottom is point) I need an easy way to translate from one system to another and vice versa. To do that, (I think) I need