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2014/10/15 ¤U¤È 10:13:12

iphone Programming Glossary: rectangular

Any quick and dirty anti-aliasing techniques for a rotated UIImageView?

http://stackoverflow.com/questions/1136110/any-quick-and-dirty-anti-aliasing-techniques-for-a-rotated-uiimageview

quick and dirty anti aliasing techniques for a rotated UIImageView I've got a UIImageView full frame and rectangular that i'm rotating with a CGAffineTransform. The UIImage of the UIImageView fills the entire frame. When the image is rotated..

How do I modify a GPUImageGaussianSelectiveBlurFilter to operate over a rectangle instead of a circle?

http://stackoverflow.com/questions/12257429/how-do-i-modify-a-gpuimagegaussianselectiveblurfilter-to-operate-over-a-rectangl

chooses the circular part of the image to not be blurred. How can I alter this to make the sharp region be rectangular in shape instead iphone ios instagram gpuimage share improve this question Because Gill's answer isn't exactly correct.. for the filter and don't control its circularity at all. I leave modifying this further to produce a generic rectangular shape as an exercise for the reader but this should provide a basis for how you could do this and a bit more explanation..

Blur an image of specific part (rectangular, circular)?

http://stackoverflow.com/questions/14107979/blur-an-image-of-specific-part-rectangular-circular

an image of specific part rectangular circular I want to blur image rectangular or circular. After googling I found that it is easy to blur whole image but it.. an image of specific part rectangular circular I want to blur image rectangular or circular. After googling I found that it is easy to blur whole image but it difficult to blur specific part of image.. circular. After googling I found that it is easy to blur whole image but it difficult to blur specific part of image rectangular circular . so how it is possible Thanks in advance iphone objective c ios share improve this question Just set your..

iPhone - How do you make a resizable rectangle for cropping images?

http://stackoverflow.com/questions/1971542/iphone-how-do-you-make-a-resizable-rectangle-for-cropping-images

would be much appreciated. I'll throw my code up here as I progress to show how it's done when I achieve it. Also this rectangular box is moveable across the screen in a UIImageView which just makes it more interesting. Thanks for the help and I look..

iPhone clip image with path

http://stackoverflow.com/questions/2570653/iphone-clip-image-with-path

clip an image with path. In the book Programming with Quartz there is an example on how to draw a circle clipped by a rectangular path p.37 and there is also a chapter on image masking with existing image as stencil Ch.10 . But I'm still not sure about..

Turn off iPhone/Safari input element rounding

http://stackoverflow.com/questions/2918707/turn-off-iphone-safari-input-element-rounding

of my website. Is there a way to instruct Safari via CSS or metadata not to round the input fields and render them rectangular as intended iphone html css css3 mobile safari share improve this question The simplest way would be to set webkit..

How to tint a transparent PNG image in iPhone?

http://stackoverflow.com/questions/3514066/how-to-tint-a-transparent-png-image-in-iphone

to tint a transparent PNG image in iPhone I know it's possible to tint a rectangular image by drawing a CGContextFillRect over it and setting the blend mode. However I can't figure out how to do a tint on..

How can I crop an Image with mask and combine it with another image (background) on iPhone? (OpenGL ES 1.1 is preferred)

http://stackoverflow.com/questions/5299452/how-can-i-crop-an-image-with-mask-and-combine-it-with-another-image-background

in places where sprite is transparent. 3 There's a number of masks I apply new mask to Sprite every frame. Mask isn't rectangular. In other words visible pixel pixel of background if cropping mask corresponding color is white OR sprite is transparent..

How to display a progress indicator overlay/HUD on iPhone?

http://stackoverflow.com/questions/593147/how-to-display-a-progress-indicator-overlay-hud-on-iphone

Parent objects in the view hierarchy are called superviews and children are called subviews. A view object claims a rectangular region of its enclosing superview is responsible for all drawing within that region and is eligible to receive events occurring..

Help calculating X and Y from Latitude and Longitude in iPhone

http://stackoverflow.com/questions/6852195/help-calculating-x-and-y-from-latitude-and-longitude-in-iphone

lon1 Use vector dot product to get the angle between vector 1 and 2. Compute the distance in lat lon space via equirectangular projection p1 lonp lon1 cos 0.5 latp lat1 convert lat lon to radians p2 latp lat1 distance R sqrt p1 p1 p2 p2 use R 6371000.. distance to your map scale At this point you have polar coordinates of the point in pixel space you now do a polar to rectangular conversion x r cos angle y r sin angle r is the scaled distance i.e. distance in pixel space and angle is the angle between..

Quartz 2D drawRect method (iPhone)

http://stackoverflow.com/questions/716351/quartz-2d-drawrect-method-iphone

is drawn once using whatever you supplied in drawRect but then is buffered into the layer. The layer acts like a rectangular texture so when you move the layer backed view or cover it no redraw is needed the texture is just moved to that location..

Advantages of using Core Graphics

http://stackoverflow.com/questions/7669018/advantages-of-using-core-graphics

contexts like PDFs. Core Animation is responsible for animation layout and some limited 3 D effects involving rectangular layers and UI elements. OpenGL ES is a lower level API for talking with the graphics hardware on iOS devices for both 2..

Moving a Stick figure, anchorpoints, animation, or something else…?

http://stackoverflow.com/questions/7808981/moving-a-stick-figure-anchorpoints-animation-or-something-else

bounding box or radius based collision detection modifying the anchor point is counter productive. Let's assume your rectangular sprite image uses a default anchor point which is in the center of the texture ._______. ° ° The marks the anchorPoint..

Most efficient way to draw part of an image in iOS

http://stackoverflow.com/questions/8035673/most-efficient-way-to-draw-part-of-an-image-in-ios

with clipsToBounds is one of the fastest simplest ways to archive your goal if your goal is just clipping a rectangular region of an image not too big . Also you don't need to send setNeedsDisplay message. Or you can try putting the UIImageView..

iPhone, Map, Clickable non-rectangular areas

http://stackoverflow.com/questions/870631/iphone-map-clickable-non-rectangular-areas

Map Clickable non rectangular areas Anyone have any ideas on how I could implement the following on the iPhone We have a map of the US and it has different.. We have a map of the US and it has different regions climate regions I believe that are different colors. They are not rectangular and don't follow state or zip or county or any other defined lines. So our areas a very round y and not even necessarily..

Faster alternative to glReadPixels in iPhone OpenGL ES 2.0

http://stackoverflow.com/questions/9550297/faster-alternative-to-glreadpixels-in-iphone-opengl-es-2-0

Is there any faster way to access the frame buffer than using glReadPixels I would need read only access to a small rectangular rendering area in the frame buffer to process the data further in CPU. Performance is important because I have to perform..