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I'm writing an ios app that can create a word cloud or word mosaic with a pattern selected by user. My question is, how can I calculate the coordinates of each word, considering the sizes of each word is randomly calculated? Or any other approach?
Note that the pattern I want to work on is like this
but, rather like that, my app will fill the white areas with word mosaic, while preserving the photo of the user.
[EDIT]
my algorithm right now is to randomly set the size and position of each words and just put them there. How can I check if each word that I'm putting doesn't intersect with each other and the photo?
Reference: http://www.imagechef.com/ic/word_mosaic/
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How do I display Mathematics in the iphone app that I am making in swift?
For example, I can use MathJax to display mathematics in wordpress, thus is there a program that I can import mathematics to use in swift or how else can I do that?
So far, mine is very simplistic.
If all you're after is a higher baseline for the exponent and a lower baseline for the subscripts, use NSAttributedString and NSBaselineOffsetAttributeName.
Or if you really like MathJax, you could use MathJax (and UIWebViews instead of UILabels).
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I am making a application that you can apply different effects to photos using GPU Image Framework by Brad Larson.I want to add X-ray Effect filter in GPU image app.Any pointers will be appreciated
You want something like the GPUImageColorInvertFilter:
If that doesn't produce the exact effect you want, you could create a custom filter based on it and have your fragment shader first convert to luminance, and then apply a greenish tint based on the inverse of the pixel's luminance. That would provide the exact effect you show above.
I'll leave the coding of such a shader as an exercise for the reader.
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I know about mapxbox/routeme and routeme but I need something basic. I need a basic map with all the countries and the only details it would be the name of the countries and the borders.
Can I do that with mapbox? Is there any easier way to do that?
The app should be offline and preload the maps.
iOS 7 support offline maps.
You just need to add tiles for specific area.
Tile contains overlay of map so we just need to add that overlay on the map.
For tiles you need to calculate area for which you need offline map and then get that area from OpenStreetMaps.
That's it.
Here is detailed Link tutorial for this.
After getting idea from tutorial you can easily understand the map structure and move ahead.
Cheers.
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I have coded a program which dynamically inserts nodes and edges, overlaying the graph onto an image. My aim is to be able to automatically add the edge weights based on pixel distances from one node to the next (edge length). Is this possible? If so could you guide me in the right direction. Thank you.
JUNG doesn't exactly have a native notion of edge weights (or any other edge- or vertex-related metadata). What it has instead is a convention for how to tell algorithms that need such metadata how to access it. For more information, see the "User Data" section here: https://sourceforge.net/apps/trac/jung/wiki/JUNGManual
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I am trying to procedurally generate point stars to create a starfield background for my game. I want to weight the color production based on an average star's real color. Can anyone point me in the direction of this sort of data?
I found a nice overview here. It shows some real examples. Maybe this will help you.
It is White. To be closer to the real thing apply redshift as the stars are further away and add or remove blue to account for star temperature and age.