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Dave Ittner
sage
*****

Reged: 05/29/12

Loc: SF Bay Area, California
Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: AndreaF]
      #5328202 - 07/21/12 12:33 PM

I am a "poor man" when it comes to astronomy. I try to find ways to save money and therefore love the free TriAtlas charts. When the IPAD came out I uploaded all of the C chart PDFs groups (ie C241-270). Each are about 25 Meg +. I found it cumbersome to navigate around. So I created individual single chart PDFs (540 of them) and uploaded them into my IPAD.

This improved the speed and responsiveness a good amount.

I really like your app and feel it will be a great improvement over my manually jumping around.

Right now I use a printed version of the A set as my index. Looking at this IMHO is better than looking at the index for the C charts. Those blue lines are way to thick. The map is stretched too much at the poles for my taste.

Do you plan to have the ability to hot jump to another chart? (one that is not linked to the current chart you are viewing)

Dave


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Dave Ittner
sage
*****

Reged: 05/29/12

Loc: SF Bay Area, California
Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: Dave Ittner]
      #5328355 - 07/21/12 02:24 PM

I am getting excited thinking about how useful this app could be.

What I would like to see is an overall app that helps me navigate the A, B, and C set of charts.

For example, if your app was displaying chart A1, there would be navigation boxes on the edges of the chart that would allow you to go to other A related charts.

*** But at the same time there are notations in the chart to go to B charts as well as C charts. How neat it would be to dive down one level to B10 for example ("10" located on A1 close to 0h RA +50 Dec). Or to dive even deeper down to C55 ("55" just above "10").

Once you are looking at B10 you will notice on the bottom right hand corner this chart is labeled B10 but just above that it shows A1, which is a link one level above) It would be nice to have that as a clickable link.

Still while on B10 there are identifiers for the C charts - it would be nice to make them linkable so we could dive down one level deeper.

When looking at C55, it also shows C55 in the bottom right hand corner with A1/B10 just above it. Again it would be nice to have each of those as links to go 1 or 2 levels higher.

When down in the C charts it is nice to back up one level to the B chart, or even higher and go to the A chart.

I am not sure if what I am asking is possible but it would be nice to have all 3 sets of charts from the TriAtlas linked together so one can zoom in or out at will.

Can this be done?


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Nop
Vendor (iPushto)


Reged: 02/12/06

Loc: Netherlands, Valkenburg
Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: Dave Ittner]
      #5330939 - 07/23/12 07:36 AM

Hi Dave,
Good news! The app will be free of charge.(maybe i'll add some freemium versions later).
The set only includes the C charts. The app will be approx 600Megabytes. If I had to include the other charts, it will be a beast. And will take a lot of time to implement.
The Phone/Pad handles zooming very well, so IMHO, there is no need for the A/B types.
You can flip pages. Using the left-right buttons and return to the index with a 'back' style button.

@Andrea, i'll implement FOV indicators


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psonice
Pooh-Bah


Reged: 07/24/09

Loc: Warrington, UK
Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: Nop]
      #5330964 - 07/23/12 08:14 AM

Nop: 600MB? Are you storing the charts as bitmaps? If so, take a look at some of the options. If you're storing them as PDF, the mac has an open to export a pdf with compression which may help cut the size, alternatively you could try vectorising them (I'm pretty sure there are some good tools to help with this) as that should improve the speed massively.

If you are stuck with bitmaps, keeping them under the GPU's maximum texture size (1024^2 on older models up to 4096^2 on newer ones) might help on older devices.


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Dave Ittner
sage
*****

Reged: 05/29/12

Loc: SF Bay Area, California
Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: psonice]
      #5331115 - 07/23/12 10:54 AM

In regards to your statement:
"The Phone/Pad handles zooming very well, so IMHO, there is no need for the A/B types."

What do you plan to offer for a bigger picture? The index that JT provides for the C set of charts sucks IMHO. It would be a pain in the $&%* to open up and scroll around to find the appropriate chart you need. That is for when you are jumping from one section in the sky to another and not immediately nearby.

On another note - can you describe how you are able to take his charts and create links to other charts?


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Nop
Vendor (iPushto)


Reged: 02/12/06

Loc: Netherlands, Valkenburg
Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: Dave Ittner]
      #5332550 - 07/24/12 04:50 AM

@Psonice, the app will be approx 470MB in size for all charts. I've tested different formats (bitmap, pdf, jpg). Slightly compressed JPG turned out to be the fastest. So the set is made of 700 JPG's of good quality.
@Dave, i will provide a fancier index image with exactly the same dimensions.
The links are made by keeping an array of charts which contain the RA/Dec and bordering charts. This is required for good navigation and search functionality.


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Dave Ittner
sage
*****

Reged: 05/29/12

Loc: SF Bay Area, California
Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: Nop]
      #5332913 - 07/24/12 11:01 AM

700 JPGs? The C set has 571 charts. what are the other jpg's from/for?

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psonice
Pooh-Bah


Reged: 07/24/09

Loc: Warrington, UK
Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: Dave Ittner]
      #5333009 - 07/24/12 12:18 PM

And if they're mostly black + white with little detail, would compressed png give a better quality/size ratio? Guess that's one you've tested, but if not it might be worth a go. Low colour modes should be OK for this too.

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Thomas Karpf
Carpal Tunnel


Reged: 02/09/09

Loc: Newington, CT
Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: psonice]
      #5333040 - 07/24/12 12:41 PM

For black + white, GIF should be relatively small as well.

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Nop
Vendor (iPushto)


Reged: 02/12/06

Loc: Netherlands, Valkenburg
Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: Thomas Karpf]
      #5333192 - 07/24/12 02:19 PM

Yes, i've tested PNG too. But the performance is good as well as the total size (about half the size of SkySafari), so i'll stick with JPEG
BTW:
If someone wants to testdrive the app and provide lots of feedback (!), send me a mail to dev@ddq.nl and i'll add you to the testing team.


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Astraforce Paul
Carpal Tunnel
*****

Reged: 04/05/05

Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: Nop]
      #5352769 - 08/05/12 09:15 AM

Count me in with Dave. Even with the zoom in/out, it would be great to be able to click on a link on the left, right, top, or bottom chart number to go to that map.

Now, perhaps that's not necessary, if one can swipe left-right, up or down to go the chart in question. However, both methods would be useful--e.g., there could even be embedded links to jump to additional, very deep charts, say for the Virgo Cluster or Sagittarius-- much the way the old Edmund Mag 6 Star Atlas did.


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Nop
Vendor (iPushto)


Reged: 02/12/06

Loc: Netherlands, Valkenburg
Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: Astraforce Paul]
      #5354297 - 08/06/12 06:08 AM

I've submitted the app today. Fingers crossed. This version contains
- all Triatlas C charts
- Flip/Mirror
- Night mode
- Brightness
- Full Screen mode
- Screen rotation (portrait/landscape)
- In-map navigation to neighbouring charts (the chart numbers Astraforce Paul is mentioning)
This app will be FREE of charge!
Thanks to everyone who's involved with testing.
In the meanwhile i'll continue to add some 'premium features to the app:

- Setting circles
- Memo recorder
- NGC/Messier search
- Chart inversion


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demiles
professor emeritus
*****

Reged: 11/07/06

Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: Nop]
      #5356879 - 08/07/12 06:22 PM

Thanks for making this app. What is the name of it?

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kkokkolisModerator
Carpal Tunnel
*****

Reged: 09/23/09

Loc: Piraeus, Greece
Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: demiles]
      #5364541 - 08/12/12 10:50 AM

Please, update us.

PS: iPushto looks promising. Does it really work with an iron tube?


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Nop
Vendor (iPushto)


Reged: 02/12/06

Loc: Netherlands, Valkenburg
Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: kkokkolis]
      #5365985 - 08/13/12 07:34 AM

Hi kkokkolis,
Within 2 weeks i'll move to a place in the mountains to observe and test the iPhone/iPad atlas app. After bugfixing and finetune i'll submit the app. It will be late september/oct.

PS It's easy to test if your telescope is 'iPushTo' capable by starting the compass app and see if there's a 'compass interference' message all the time. If it s not, or if it dissapears you can purchase the Pushto app.


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pjglad
sage


Reged: 01/29/11

Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: Nop]
      #5366047 - 08/13/12 08:53 AM

I thought the App was submitted to Apple on August 6.

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Nop
Vendor (iPushto)


Reged: 02/12/06

Loc: Netherlands, Valkenburg
Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: pjglad]
      #5366077 - 08/13/12 09:37 AM

That's true, but i was not satisfied with the night vision (especially toolbars/buttons) so i decided to reject this release. I want the program to be good.

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pjglad
sage


Reged: 01/29/11

Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: Nop]
      #5366098 - 08/13/12 09:53 AM

I have not seen this app, but I would recommend a + and - tap capability for zooming in and out (like SkySafari). I find this to be more accurate than pinching plus I use a stylus on my iPad. Thanks for listening.

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pjglad
sage


Reged: 01/29/11

Re: Interested in an advanced star atlas/iPhone/iPad? new [Re: pjglad]
      #5446240 - 09/29/12 04:02 AM

Does anyone know if this app has been published?

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Nop
Vendor (iPushto)


Reged: 02/12/06

Loc: Netherlands, Valkenburg
Re: Interested in an advanced star atlas/iPhone/iPad? [Re: pjglad]
      #5449611 - 10/01/12 04:33 AM

Yes, i've submitted the app a month ago for review from Apple. But it was rejected because it didn't have enough eyecandy, whistles and bells according to my friends in Cupertino. I'm improving the artwork now, but that will take a while.

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