pan Questions

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I'm writing a simple image viewer and am implementing a pan and zoom feature (using mouse dragging and mouse wheel scrolling respectively). I've successfully implemented the pan (easy mode) and a n...
Tiptoe asked 6/1, 2014 at 3:39

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Apologies if this is a simple case of me being blind to the obvious, but I am trying to put together a page that shows a map of the world (data sourced from a TopoJSON file) in Mercator projection ...
Lapful asked 16/2, 2013 at 9:59

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I have this (now working) code based on bits I picked up various places: procedure TFormMain.imgMapsGesture(Sender: TObject; const EventInfo: TGestureEventInfo; var Handled: Boolean); var LObj: ...
Tangram asked 28/7, 2013 at 11:30

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I want to visualize a huge diagram that is drawn in a HTML5 canvas. As depicted below, let’s imagine the world map, it’s impossible to visualize it all at the same time with a “decent” detail. Ther...
Uneventful asked 5/8, 2013 at 12:11

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I'm using D3.js to plot a collapsible tree diagram like in the example. It's working mostly well, but the diagram might change dramatically in size when it enters its normal function (ie instead of...
Emmie asked 1/7, 2013 at 13:28

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I was wondering if you could help me with the follwoing D3js Zoom and pan functionality in the following fiddle: http://jsfiddle.net/moosejaw/nUF6X/5/ I hope the code (although not great) is strai...
Actual asked 22/5, 2013 at 1:49

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I'm kind of new to delphi graphics methods and I'm stucked at creating a ... viewport , thats how I call it while i was doing it for a project. I'm sorry I can't provide any code for it but I'm stu...
Enlarge asked 2/1, 2013 at 16:50

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I've got a d3.js static force layout graph that can get rather big (sometimes parts of it are clipped), so I'd like to let the user pan the whole graph by dragging. I don't think I need dragging of...
Prynne asked 1/10, 2012 at 14:6

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I have a custom PictureBox which can zoom in using MouseWheel event. Now I want to add a panning feature to it. I mean when PictureBox is in zoomed state, if user left clicks and holds the click th...
Urethroscope asked 21/8, 2012 at 12:32

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I have implemented a simple D3.js line chart that can be zoomed and panned. It is based on Stephen Bannasch's excellent example here. The domain of my data is [0, n] in the x dimension. How can I...
Vickey asked 2/5, 2012 at 22:42

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Why using "pan" after rotate makes view go opposite way? It seems these two gesture are use diffrent coordinate system? Rotation use the one is rotated,and pan use the normal one? And if the vie...
Pious asked 29/7, 2012 at 5:44

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Been struggling all day with setting a pan to in google maps from a text link. It looks like the id of the map itself isnt being passed through to the function but I have tried a number of things w...
Uglify asked 26/3, 2012 at 15:1

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I have an app with a MKMapView and code that is called each time the map changes locations (in regionDidChangeAnimated). When the app initially loads, regionDidChangeAnimated is called on pans (swi...
Award asked 2/2, 2012 at 22:27

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2 Gesture recognizer: UIPinchGestureRecognizer *twoFingerPinch = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(handlePinch:)]; [croppper addGestureRecognizer:twoFingerPin...
Diella asked 6/12, 2011 at 16:40

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I have a problem developing a web application for iPhone. When I visit a simple example like http://code.google.com/intl/sv-SE/apis/maps/documentation/javascript/examples/map-simple.html in an iPho...
Xe asked 2/3, 2011 at 16:41

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What's the best way to implement a pan-able zoomable game map with Cocos2d for iPhone. It would be like Mobile Safari except with a game map that doesn't fit completely on screen. Or like how it's ...
Katlynkatmai asked 15/10, 2010 at 7:0

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I previously asked the question "How to zoom subplots together?", and have been using the excellent answer since then. I'm now plotting just two sets of time-series data, and I need to continue to...
Asymmetry asked 15/2, 2011 at 1:2

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I have some images that I loaded from a remote source stored in Bitmap variables and I want to display them. In addition to switching between these images the user should also be able to zoom and p...
Aromaticity asked 31/5, 2010 at 1:47

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Using OpenGL I'm attempting to draw a primitive map of my campus. Can anyone explain to me how panning, zooming and rotating is usually implemented? For example, with panning and zooming, is that...
Southwards asked 25/2, 2009 at 1:59

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