zooming - Make Me Engineer

How to implement zoom effect for image view in android?

Lazy man can use this lib, Just import inside your project and ImageView mImageView; PhotoViewAttacher mAttacher; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); // Any implementation of ImageView can be used! mImageView = (ImageView) findViewById(R.id.iv_photo); // Set the Drawable displayed Drawable bitmap = getResources().getDrawable(R.drawable.wallpaper); mImageView.setImageDrawable(bitmap); // Attach a PhotoViewAttacher, which takes care of all … Read more

Zoom and pan in animated HTML5 canvas

Here’s one technique for zooming at a point: Drawing the map Simplify things by not using transforms to draw the map (no need for translate,scale!). All that’s needed is the scaling version of context.drawImage. What you do is scale the original map to the desired size and then pull it upward and leftward from the … Read more

Matplotlib plot zooming with scroll wheel

This should work. It re-centers the graph on the location of the pointer when you scroll. import matplotlib.pyplot as plt def zoom_factory(ax,base_scale = 2.): def zoom_fun(event): # get the current x and y limits cur_xlim = ax.get_xlim() cur_ylim = ax.get_ylim() cur_xrange = (cur_xlim[1] – cur_xlim[0])*.5 cur_yrange = (cur_ylim[1] – cur_ylim[0])*.5 xdata = event.xdata # get … Read more

On zoom event for google maps on android

With the Google Maps Android API v2 you can use a GoogleMap.OnCameraChangeListener like this: mMap.setOnCameraChangeListener(new OnCameraChangeListener() { private float currentZoom = -1; @Override public void onCameraChange(CameraPosition pos) { if (pos.zoom != currentZoom){ currentZoom = pos.zoom; // do you action here } } });

Force page zoom at 100% with JS

You can set zoom property on page load document.body.style.zoom = 1.0 But, zoom is not a standard property for all browsers, I recommend using transform instead. var scale=”scale(1)”; document.body.style.webkitTransform = scale; // Chrome, Opera, Safari document.body.style.msTransform = scale; // IE 9 document.body.style.transform = scale; // General http://jsfiddle.net/5RzJ8/

How can I zoom an HTML element in Firefox and Opera?

Try this code, this’ll work: -moz-transform: scale(2); You can refer to this.

How to zoom in and out of an image pygame and using the mousposition as the center of the zoom

You’ll need to scale and blit the original image when you zoom. Use the attribute maprect to define the scaled size and relative location of the map. Add a method blit map that can scale and blit the map. Use the method in the constructor of the class App: class App: def __init__(self): # […] … Read more

JavaFX 8 – Zooming Relative to Mouse Pointer

I had the same question here on StackOverflow. The following code is a modified version of the question/answer there. You can use right mouse button = panning left mouse button = dragging of the nodes scroll wheel = zoom in on mouse cursor location The relevant part for you is the onScrollEventHandler. import javafx.application.Application; import … Read more

complete styles for cross browser CSS zoom

These will be sufficient for cross browser… Demo Note: As @martin pointed out that this may not work as intended, doesn’t mean this fails, Chrome just makes it 2x larger than other browsers, because it RESPECTS zoom property as well. So it makes it 2x larger… zoom: 2; /* IE */ -moz-transform: scale(2); /* Firefox … Read more

MKMapView Zoom and Region

First of all, MKMapView does not use/have a predefined set of zoom levels like Google Maps does. Instead, the visible area of a MKMapView is described using MKCoordinateRegion, which consists of two values: center (the center point of the region), and span (the size of the visible area around center). The center point should be … Read more

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