Is it possible to take a photo centered to the north with dji drone?
for example I would take a series of photos to create a 360 views and I would like that the first of these photos is centered to the north.
It's doable ?
TLDR: Yes.
Using the mobile SDK, you can control the aircraft programmatically.
This could be you flying the aircraft facing north and running a special panorama mission or even automating the flying so the aircraft goes where you want as well.
To give you more details, I would need a more precise question.
In the mean time, check out developer.dji.com for all info on the MobileSDK (Android and iOS)
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I am building an iphone app to recognise a specific colour through the iphone camera when placed onto a colour board.
Note that I want it to work through the streaming camera output not just a still image or photo.
My initial thoughts were to scan series of pixels (say 4 on each corner of the camera feed) and if the colours registered in each pixel match, then display colour (in text) to user.
Can someone please point me in the right direction as far as example code or API or even if there is a better design solution to the problem.
I have made a "two screen app" in which the camera is divided into two sides left and right each of which can be captured independently and merged later.
The problem which iam facing is when ever user touches the capture button the camera moves a bit and captured image shakes so the user is unable to match the two halves.
Is there any way to make camera less sensitive to minor movements?
I am using imagepicker
Thanks
Roll your won image capture. Capture a larger image than necessary and stabilize the shown image using the gyro.
There is a great example of stabilizing the compass in much the same way here:
http://www.sundh.com/blog/2011/09/stabalize-compass-of-iphone-with-gyroscope/
I have been doing some reading and tutorials on tile maps in cocos2d, but what i want is to have a large graphic map, not made up of tiles that the user can drag around. so my question is this.
Is it going to cause performance issues to have a large map, (this will be on the ipad so maybe x4 the screen size)?
The maximum texture size you can have is 2048x2048 for any device above the iPhone 3G (This includes all iPads, although it may be larger on the iPhone 4S, but I doubt it). You can find tons of links on google by a simple search of iphone max texture size. That means that the largest image you can have is between 4-6 iPad screens. If this is enough for you, great! If not, you'll have to tile the screen anyways, regardless of the size of your tiles. Hope that Helps!
Now i understand we can have 5 touch points by default in iPhone and have varied touch points enabled onto the different SDKs. However i have accomplished registering the touch points and getting distances, actual number of touch points. I would want to know if there's a way to accomplish and get the Diameter of a particular touch point for e.g. calculating the thumb touch in comparison with the index finger, Any ideas?
I think Apple makes it fairly clear that they don't intend to give third-party developers access to low-level multi-touch information. From Apple's documentation on Event Handling in iOS:
A finger on the screen affords a much different level of precision
than a mouse pointer. When a user touches the screen, the area of
contact is actually elliptical and tends to be offset below the point
where the user thinks he or she touched. This “contact patch” also
varies in size and shape based on which finger is touching the screen,
the size of the finger, the pressure of the finger on the screen, the
orientation of the finger, and other factors. The underlying
Multi-Touch system analyzes all of this information for you and
computes a single touch point.
I can’t speak to Android, but the public APIs in the iOS SDK don’t give you any information about a touch other than its position. These guys found a private API (i.e. one that’ll get you rejected from the App Store if you use it) for getting the diameter of a touch on the screen, but they haven’t provided any further information or released the library.
It's likely possible on Android (4.3 I have, but most likely others too), as you can both activate an overlay display of touch properties in the Developer options as Pointer location (in Input category), which shows you coordinates, their Delta (=difference) and two properties you might be interested in: Prs, that is pressure and Size. It seems you can find the thresholds that would recognize a thumb and the index finger in most cases. That's just what I would imply from the values I have seen in that display.
A proof that this is possible within the allowed API is Yet Another MultiTouch Test Android App listed on on Google Play which for me shows the pressure of each touch in it's own interface (so it must be available in the standard API).
We are starting a new game and while I have a few months experience with iPhone SDK, I'm not quite sure the best approach to take for this project.
Basically, our card game requires more real estate than the iPhone screen allows. What we ultimately need is about 480x600 pixels so some of our gameboard will be off the screen sometimes. We will need to be able to take cards from one side of the screen and drag them to another.
For the past few days I've been trying different things, both using cocos2d and other tries using UIKit, but haven't been able to come up with a good solution. I was hoping someone could point me in the right direction. A UIScrollView with draggable UIImageViews inside of it seems to be a logical choice but its easier said than done.
Download the free version of the "Words with Friends" app. They use a 2-state zoomable game board with localized zooming and scrolling depending on what you are looking at.
How would that work for your game?