I downloaded library coreplot and I tried the example in this tutorial: http://www.switchonthecode.com/tutorials/using-core-plot-in-an-iphone-application.
I have two problem:
1) When I compiled example i don't have error and warning but label of example not showing.
2) inside the tutorial the command axisSet.xAxis.axisLabelOffset = 3.0f; give me a error " error: 'axisSet' undeclared (first use in this function)".
What is the problem?
is very important for me a speed reply thank you all :)
best regard
That tutorial is very useful for adding Core Plot to an iPhone app, but the example plots are out of date. If you look into the comments, there is some updated the code, but that may even be out of date.
I would recommend looking at the example apps included with the Core Plot framework. Also, I have been able to find some answers by digging through the documentation (after building it).
EDIT:
Refer to this:
Related
I just started using SAPUI5 and I am actually curious on how the samples work.
For example:
https://sapui5.hana.ondemand.com/#/entity/sap.f.FlexibleColumnLayout/sample/sap.f.sample.FlexibleColumnLayoutColumnResize
I downloaded it and opened using Atom IDE. However, I don`t see any mock data or .json.
Is that on purpose? I was actually expecting to see the code for the sample, with the sample data.
Thank you very much.
The data gets loaded from https://sapui5.hana.ondemand.com/test-resources/sap/f/demokit/sample/FlexibleColumnLayoutColumnResize/webapp/data/sections.json
see line 21 in Component.js: var oProductsModel = new JSONModel("./data/sections.json");
You can find details on how to set up a JSON model in Step 7 of SAPUI5 Walkthrough - a tutorial with all major UI5 development paradigms.
I am new to iOS development and apologies for a basic question. I am trying to convert an image to grayscaled and threshold it using openCV in iOS. So far, I have imported and setup the framework on xcode. What I am trying to do now is to implement the following features:
http://www.youtube.com/watch?feature=player_embedded&v=Ko3K_xdhJ1I
at 0:24 and 0:53
I tried to follow the tutorial which points to the above youtube video :
http://docs.opencv.org/doc/tutorials/ios/image_manipulation/image_manipulation.html
and wasn't sure where to paste the above code and in which file?
Many thanks.
Kind Regards.
These are helper methods and best written in a separate file. Quite simply,
http://answers.oreilly.com/topic/631-how-to-get-c-and-objective-c-to-play-nicely-in-xcode/
Put all that image manipulation code in say ImageManipulationHelper.mm and create a header file for the same
Create a nice little category for UIImage.
http://developer.apple.com/library/mac/#documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/CustomizingExistingClasses/CustomizingExistingClasses.html
which can call these methods in turn to create any image manipulation you might want.
Easy does it. And yeah, read up a bit more on using C++ in objectiveC, if you get into trouble and also about categories. They are some of the niftier features of objectivec
I achieved the same,using the help of this awesome link
Let me know if you need any further help.
Cheers!!
Edit :
Check this out ImageFiltering
i recently find haro library for pdf generation and i get a iPhonepdf sample from https://github.com/akisute/iPhonePDF, the sample works fine but actually i could nt use the library in my project, i do step by step as http://kishorek.com/?s=pdf&searchsubmit= said, but finally i got error :
Command /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/llvm-gcc-4.2 failed with exit code 1
is there anyone to use it before to help ...
thanks in advance
Do you only want to use haru library?? If it is not really needed.. then below link is really good for generating any type of PDFs. Also manipulating functions inside this link is really easy.. And integrations is also too easy without any additional framework and also fast.... Please follow the link
http://www.ioslearner.com/generate-pdf-programmatically-iphoneipad/
I want to render SVG images in iPhone without using a UIWebView. How can I do that?
I have checked these 2 links:
http://www.splashdust.net/2010/09/svgquartzrenderer-a-basic-iphone-sdk-compatible-svg-renderer/
https://github.com/splashdust/SVGQuartzRenderer
The above project on Github shows 102 errors showing UIKit framework missing and others and I are also not able to add that framework.
I think the application is for MacOS not for iOS.
http://maniacdev.com/2011/05/open-source-library-to-render-svg-graphics-as-core-animation-layers/
https://github.com/mattrajca/SVGKit
The project on the above url shows the error when i build the project.
Target specifies product type 'com.apple.product-type.framework', but there's no such product type for the 'iPhoneOS' platform.
Does anyone know how to solve that? Or other useful working examples that I can use for that? I want to render SVG's on iPhone.
UPDATE: I have got working SVGKit working by reading instructions. But when I tried to make project working which iI downloaded from Github (https://github.com/splashdust/SVGQuartzRenderer
) I got following errors:
1) UIKit/UIKit.h: No such file or directory (I am not able to add it using add existing framework)
2) Libxml/tree.h: No such file or directory
3) Expected specifier-qualifier-listbefore 'xmlParserCtxtPtr'.
Does anyone know that how to resolve it and make it work?
Jason Morrissey, author of the extremely excellent Alien Blue app, the best iOS Reddit client on the store (can you tell I'm a fan? I'm also a beta tester.) recently put up his SVGKit framework, which renders SVG images as Core Animation layers. I haven't used it, but I know it exists.
And then, look... if you're just getting lots of errors when you bring in other people's classes, my strong suspicion is that you're not following their "how to use" instructions. They'll mostly tell you what frameworks are required and what platforms they support. Every time I've tried to use something like this and had a compilation bloodbath, I've gone back and found some installation instruction step I missed.
I just managed to compile SVGFlashRenderer.
For iOS you need to open the project from the directory SVGRendererTouch.
And don't forget to separately download contents of the lib/MROGeometry dir from github (just follow the link in the source tree).
P.S. For me, the best working solution was SVGKit, but not the version from Jason Morissey (mentioned in another answer), but a fork from reklis. It has many bugs fixed and works in a much more correct way.
It's easy.
SVGKImage *svgImg = [SVGKImage imageNamed:#"add-control-panel"];
SVGKFastImageView *imgView = [[SVGKFastImageView alloc] initWithFrame:CGRectMake(10, 100, 420, 280)];
imgView.image = svgImg;
[self.view addSubview:imgView];
I found Yoshimasa Niwa's article about blob detection here:
http://niw.at/articles/2009/03/14/using-opencv-on-iphone/en
And something on realtime face detection here:
http://www.morethantechnical.com/2009/08/09/near-realtime-face-detection-on-the-iphone-w-opencv-port-wcodevideo/
But what I really want to do is realtime blob detection (like http://www.youtube.com/watch?v=LIgsVoCXTXM) using the iPhone 4 camera.
I can find the headers for CvBlobDetector in cvvidsurv.hpp. But trying to use that without modification is not the right thing to do.
How do I get CvBlobDetector to work? Or is there an alternate solution?
Make sure you've followed the instructions to use it properly:
http://opencv.willowgarage.com/wiki/cvBlobsLib
One of the alternative solutions i used and it works good is:
http://code.google.com/p/cvblob/