Spliting an image into multiplae images - iphone

Thanks in advance.
I got how to split an image into multiple square images . But I want to know how to split into multiple images with different shapes like jigsaw puzzle images. If any one know please tell to me.

Just use a copy of part of image with large enough size to fit the whole shape. Then use a mask to cut the shape and the rest of it set as transperant.

Related

How to split an image into pixels and display those pixels in dart/flutter?

For example this image, I would like to split it into say 30x30 pixels and present this specific part to the user. Like a map! it's possible?
I searched the internet and didn't find anything that would help me! appreciate

split the image into a mesh of small quadrangles in OpenGLES

How do I split the image into a mesh of small quadrangles in OpenGLES.
I need to split image in small parts and after that stretch only one part of the image, not the whole image.
Is it possible using OpenGL? I am new in OpenGL.
before editing in hair image like
and after editing hair image like
So the image stretches from any side and in any way.
Can you explain more detailed? What quadrangles would you like to use? Are they simple rectangles or squares? Or they are a bit more complicated like parallelogram, trapezoid, kite or rhombus?
Anyway it's easy to split an image into any quadrangles you want. You can get any quadrangle from your image by telling OpenGL about image coordinates: glTexCoord2f(x, y)
I forgot to mention that image in OpenGL is loaded with size (1.f, 1.f) and it doesn't matter what size your picture is you can split it in as many as you want quadrangles.
There is one very useful tutorial about texture mapping maybe there you get your answers more detailed. Also i recommend you to keep an eye on official OpenGL documentation.
Good luck.

Drawing route/lines on a custom map image (iphone)

I have a custom map image of an area.. There are about 9 regions and the number of distinct lines needed is only 11 (based on all possible routes).
What is the best way to draw a route on the map?
The brute force/hacky way is to create static images of every route possible- insane as it amounts to over a million images. Another way is to have layered images with the lines as images on top of the map (is this possible? Would zooming mess it up?)... Any other suggestions to tackle this? I could programmatically draw lines on top of the map but would it be responsive to zooming and such?
Note: The map image is a vectored image (svg) and does not contain GPS coordinates
Thank you!
You'll probably want to check out coreGraphics, it's perfectly suited for this task. Zooming and all.

how to animate some portion of images?

I am implementing fun application.In which i want to animate some area(portion) of images.
I dont know how it possible.If u have any idea then please help me.
If you're looking to animate a portion of an image you could just create a smaller animation and put it at the right relative location inside a larger image.
If you want to know how to animate images in general, that's a different question entirely.

How to display particular pixels of an image in imageview in iPhone

I am in a situation in which I need to display particular pixels of an Image in an ImageView.
Is there any way to do this in iPhone?Can anybody provide some Example code to do this?Please help me to solve this problem.
There are many ways to display a small subset of your pixels. You can get the raw pixels with this.
Or you can crop a photo. Or you can mask a photo so you are left with just a small bit of your image.
What exactly do you mean by "display particular pixels"?