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Closed 9 years ago.
I'm new to iOS and chart related kinda stuff. I wanted to create a line chart for iOS which allows user to customize the points as they want. For example user can drag the points on Y Axis.
I found out there is an open source library Core-Plot which might able to create line chart similar to the example link. But I'm not really sure about it and I cant find any clear explanation and sample project. So I wanted to ask here that, is it possible to use Core-Plot for such task and if it's possible please do provide any sample function/code that can be used for this purpose.
Please do suggests if there is any library (commercial or open source) that can perform such task.
I looked up and found (Commercial) ShinobiChart and Acollada iOS Charting but not sure whether can perform such task yet.
i hope below links will help you.
Core-Plot sample codes:
http://tech.pro/tutorial/939/using-core-plot-in-an-iphone-application
piechart
http://www.johnwordsworth.com/2011/10/adding-charts-to-your-iphone-ipad-app-using-core-plot/
http://www.gilthonwe.com/2012/06/09/stacked-bar-chart-coreplot-ios/
Related
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Closed 9 years ago.
I need a control which can display thumbnails similar as seen on the attached image.
It should support:
virtual mode
handle up to 50.000 images
thumbnail groups
scaling
work with Delphi XE3.
If such control does not yet exist I would have to create one from scratch. What is the best strategy for developing a control like this?
See an example of what it should look like
RMKlever has a series of blog-posts and sample code here. that can emulate a wide variety of things, but you would have to make code modifications yourself if you're particular about your desired format.
I believe the control is one of his own called rkView. The demos may require a lot of work to get them working for you, I found working with his stuff was difficult to get started with due to lack of documentation and samples but I eventually figured it all out.
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Closed 10 years ago.
I've already released several app-books for children and the number of books is quite big.
What I want to do is create a book-stand (like news stand in iOS) and get the book together.
I think there is no way to get my apps in one app(the book-stand...) so I'm trying to remake all my previous work(the app-books) and create new app(book stand).
However, each app-book has its own interactive objects so I have no idea how to do this.
Is there any good document or any tips for this?
Can your books be made via iBooks Author? How are they interactive? If you have to go down the custom store route, I would look at epub and HTML5.
Check out the Baker Framework or HPub. Also check out various interactive PDF SDKs out there.
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Closed 10 years ago.
Is there a guide / book about custom control development for iOS? All the books I've found don't go beyond using UIKit builtin controls.
As #petert wrote, Cocoa Controls is a great resource, but my favourite is by far iDev Recipes (even though it's not updating that often anymore). Check also http://maniacdev.com/, many open source libraries/projects can be found and it gets updated regularly. Ray Wenderlich has also many nice tutorials - scroll down to "Graphics and Animation".
EDIT: I just saw that #Jano suggests idevrecipes as well, sorry for doulbe posting
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Closed 10 years ago.
I've been searching for a while on a way to read data from a barcode scanner into my iPad 2 application but I can't seem to find some sample code that indicates how. All I need is to know the API to use. I saw some sample code on GameKit but before I spend hours trying to learn an API that doesn't do what I want, I am hoping someone will point me in the right direction.
The iPad 2 features a camera that you can try to use to scan bar codes. ZBar will be a good starting library, and it's open source with examples.
have you tried ZBar to scan bar codes?
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Closed 11 years ago.
I am looking at The Special Effects In Picasa article.
Where can I find the following:
C/C++ or Java open source library to do it
Good books and/or articles to learn the algorithms how to do it myself
Thanks in advance for your help.
You can achieve most of the effects on that page by color manipulation (white balance) and spatial filtering.
Before you go down the path of using libraries to achieve this, I recommend playing around with image manipulation software like GIMP and trying to replicate the effects. After you're sure you know what you're doing, go ahead and try and code it up.
For libraries, have a look at opencv. There are also Java wrappers for that library if that is your language of choice (Java has its own imaging libraries as well, but I haven't used them). For books, my personal favorite is Gonzalez & Woods -- the first few chapters will get you started. For articles, Google is your friend.