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• mouse event on picturebox

  - by user548694

  I want to see my pixel coordinates on moviing my mouse on the image in picture box I have added this event Form.designer.cs this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.pictureBox1_MouseDown); and this method in Form.cs private void pictureBox1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e) { locationtxt.Text = e.X.ToString() + "," + e.Y.ToString(); } but I cann't see anything in textbox on moving my mouse on form runtime. What should i add further. regards,

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• Describe relative angles between points (like driving directions)

  - by aan234g

  I have a list of points with x, y coordinates. I know how to get the distance between points with sqrt(pow($x2 - $x1, 2) + pow($y2 - $y1, 2)) and the angle between points with atan2(y1 - y2, x1 - x2). How can I calculate the relative angle between the points (left, right, straight)? So, if I'm at point 1, what is the relative direction to point 2, then 2 to 3, 3 to 4, etc... Thanks for any help!

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• How can I use SWFLoader purely from Actionscript in Flex 3 and dynamically load content?

  - by KingVin

  Hi Friends! I'm doing a Flex 3 project wherein I've to load SWF based on the availability of required file. And the loaded SWF file will be placed in a container (a Panel) at a particular location i.e. coordinates. This I don't want to do in MXML as the SWFLoader container shows a cross marked box if the file is unavailable. So friends is there any solution?

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• How can you track mouse input using the fewest libraries in c.

  - by TimE

  I'm not sure where to look to find this information, but I'd like to know how to get mouse input (or any hid input) using the fewest non standard libraries in c. Basically, is there an stdio equivalent for mouse (and other input) input in c? Or is there a library that is minimal and cross compatible on multiple platforms. Just being able to print mouse coordinates to a terminal window would be enough.

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• is <CLLocationManagerDelegate> necessary to get the users location?

  - by kevin Mendoza

  the file that I need the users information in already has a , so Is there a way that I can get the users location coordinates without using the CLLocationManagerDelegate thing?

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• Adobe AIR canvas dimensions messed up

  - by Nikhil

  I'm messing about with Canvas in Adobe Air. But their seems to be some issue with the mouse coordinates. The more I click towards the right, the difference between the draw position and actual click increases. My code is Wb.canvas.fillRect(evt.clientX-canvasTag.clientX, evt.clientY-canvasTag.clientY, 50, 50);

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• Java Container constraints question

  - by llm

  I am using the following: java.awt.Container.add(Component comp, Object constraints) How do I specificy the constraints object? I need to be able to place a component within the container. Oh and my class extends JInternalFrame if this helps... I need to specify coordinates to place the component within the container

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• using Intellimouse in Parallels 5

  - by nobody

  I'm running Win7 in Parallels 5 and have a five button USB mouse (Microsoft Intellimouse). I have my mouse's side buttons mapped to the Forward and Back (browser) commands. However, Parallel's Mouse Synchronization Service seems to be intercepting the mouse keypress event for these two buttons, and remapping them to the Windows Start Menu command. Any way to undo this? i.e. get my Back/Forward buttons working again?

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• Splitting a list based on another list values in Mathematica

  - by Max

  In Mathematica I have a list of point coordinates size = 50; points = Table[{RandomInteger[{0, size}], RandomInteger[{0, size}]}, {i, 1, n}]; and a list of cluster indices these points belong to clusterIndices = {1, 1, 1, 1, 1, 1, 1, 2, 2, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1}; what is the easiest way to split the points into two separate lists based on the clusterIndices values?

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• International Zip Code Search

  - by Dave

  I implemented a U.S. "find near zip code" search for somebody. The coordinates of U.S. zip codes come from a commercial zip code database. Now, they would like a similar ability for countries other than the U.S. Has anybody implemented something like this for non-U.S. searches? How about general "find close to this address" searches? What commercial data is available?

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• Touchpad access in Linux

  - by Mike Hordecki

  Hi! The problem is: How to access x,y,z coordinates of my touchpad? Now that SHMConfig is disabled by default, I've found out that, in order to do it, I need to access a file from /dev/input/. Those files are, sadly, readable by root only. Is there any way to access the touchpad while in user-mode?

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• Sorting two variables in an array of objects

  - by Faken

  I have an array of xy coordinates that i want to sort by ascending y, and if there are duplicates, ascending x. Is this possible with the standard sort() function? If so, how would i go about doing it? Thanks,

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• Find Upper Right Point of Rotated Rectangle in AS3 (Flex)

  - by coltech

  I have a rectangle of any arbitrary width and height. I know X,Y, width, and height. How do I solve the upper right hand coordinates when the rectangle is rotated N degrees? I realized if it were axis aligned I would simply solve for (x,y+width). Unforunatly this doesn't hold true when I apply a transform matrix on the rectangle to rotate it around its center.

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• Why does my table values return nil when i clearly initialized them?

  - by user3717078

  players = {} function newPlayer(name) players[name]={x = 200, y = 100} --assign each player their x and y coordinates, which is x: 200 and y: 100 end function checkPosition(name?) -- Do i need a parameter? if players[name].x == 200 and players[name].y == 100 then --says players[name].x is a nil value print("good") else print("bad") end end Error: attempt to index ? (a nil value) Current Situation: The code above says players[name].x is a nil value, I would like to know why since i thought i assigned it in the function newPlayer.

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• ms-access: filling out an application by printing over it

  - by every_answer_gets_a_point

  i will be printing the access report. the report will not be printed a regular white paper. it will be printed on top of a paper with checkboxes and fields on it. i need those checkboxes and fields to be printed on according to the access data. are there any libraries for access that make this easier? is there a feature that will help to print on specific coordinates?

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• QT Question (general math really): How can I tell if an Ellipse and a Line have an intersection?

  - by asdsa

  The ellipse is actually a circle. I know all the coordinates of both things, I just need to know whether or not a line goes through an ellipse. Is this built in anywhere? SPecifically I am using QGraphicsEllipseIem and QLine but i can convert them to any other type thanks

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• Custom Control in Silverlight ListBox

  - by jaime

  I have a custom control I created from a expression design I created and exported to xaml. I have put in it a bound itemtemplate/datatemplate of a ListBox contorl. It doesn't seem to be rendering more than once and/or it is rendering each item in the same place(kind of like the same x,y coordinates.

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• Returning all "positions" of a list

  - by Daymor

  I Have a list with "a" and "b" and the "b"'s are somewhat of a path and "a"'s are walls. Im writing a program to make a graph of all the possible moves. I got the code running to check the first "b" for possible moves, but i have NO Idea how im going to find all "b"'s , even less check them all without repeating. Major issue im having is getting the tuple coordinates of the "b"'s out of the list. Any pointers/tips?

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• Android Mock Location locks GPS on status bar

  - by Mark Manickaraj

  I created an app that uses mock locations to insert GPS coordinates. After removing the test provider via: mLocationManager.clearTestProviderLocation(mocLocationProvider); mLocationManager.removeTestProvider(mocLocationProvider); mLocationManager.removeUpdates(mLocationListener); When I launch google maps for example after exiting the app the GPS location is found and then never goes away. "Location Set By GPS" always remains on the notification bar even though my app is ended. Any ideas?

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• Figure out texture coordinate from 4 others?

  - by user146780

  Lets say I have 4 verticies and their texture coordinates. How could I then figure out the texture coords of a 5th vertex? Thanks

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• How do I use the Google Maps API GPS sensor?

  - by renegadeofunk

  All I've been able to find is how to specify the sensor parameter: http://code.google.com/apis/maps/documentation/v3/#SpecifyingSensor But nowhere does it say how to actually USE it. Isn't the whole point to be able to get the user's current lat/long coordinates through the device GPS, or am I mistaken?

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• Best way to render Tesselated Objects (OpenGL)

  - by user146780

  I'm using the GLUTesselator for Polygons. Right now the vertex callback does glvertex2f and gltex2f. Would it be better simply to collect the verticies from the vertex callback in a std::vector then use gldrawarrays()? Or would this actually be less efficient since it has to put the verts and texture coordinates in a vector? Thanks

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• How to set up a database and API web page to accept POST updates from iPhone?

  - by lionfly

  Hi there, I am developing an iPhone app, which now can update Twitter account with GPS coordinates in real-time, by the Twitter API link: http://username:[email protected]/statuses/update.xml , and I am looking at how to make my own database to accept updates from iPhone, via a similar API page. It seems a .php page can serve as the API, and MySQL can serve as the database. What are the good ways of doing it? Any template code and tutorial please?

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• jQuery: How to write a function on click, hold and move?

  - by Syom

  I started learning jQuery just yesterday, and I like it very much. And now I decided to write a script where I can change the margin-left of an image when I click on it, hold the clicking and move the mouse. Depending on mouse coordinates I must change the image's margin-left. Could you give me an idea how I can do it? Thanks.

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• Operations on Java Swing

  - by gustavo

  In my project,I will get the coordinates of some points from an XML file,and create some visual components using this information ? I am planning to give these components to a Java swing frame or panel. However,The users are supposed to click on the figure(which I will construct using Graphics 2d libraries) and select two points and give a label to the points between those two points ? How can i get the clicks clicked on JFrame or JPanel(i.e events for this kind of actions) ?

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