Unable to view offline hybrid view if sat image is present offline but hybrid tiles are missing offline

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What steps will reproduce the problem?
 1. Open GMapCatcher 0.7.2.0 in windows XP.
 2. View some places in satellite mode being online.
 3. Now change mode to offline.
 4. See the same region in HYBRID Mode. It will not show the satellite images.

What is the expected output? What do you see instead?
When user selects HYBRID mode and there is no hybrid tiles available but 
satellite images are available, then it is better to display the satellite 
images without showing anything. 

What version of the product are you using? On what operating system?
0.7.2.0 on Windows XP

Please provide any additional information below.
Currently user can see the satellite images when the mode is changed to 
satellite. I believe it is better to show satellite images if available in 
hybrid mode when no hybrid tiles are available. It makes this application more 
usable.

Original issue reported on code.google.com by prasenji...@gmail.com on 21 Jul 2010 at 5:03

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I think i posted in the wrong section haha silly me, posted in wiki as opposed 
to here on issues doi! ;) But yeah i see what ya getting at dude, i thought the 
same thing!!

Comment by ObiDanKinobi,  Yesterday (22 hours ago)

Hi guys/gals. Just wanted to say fantastic work you are doing with this 
program, just recently downloaded the latest version (0.7.2), and it seems to 
work fine. I have 1 suggestion and 1 query though, if i may.

The suggestion is this.....Rather than have both regular map and satellite 
imagery purged into a different tile type 'hybrid'. Would it not be possible 
for the gui to link to both the sat tile libraries and the map tile libraries, 
thus negating the need to download a new form of data 'hybrid'.

It would make sense to only require 2 data sources to create 3 colours to to 
speak, rather than 3 for 3 as it would reduce the amount of data overhead 
required.

Also you have four options (well differential ones at least ;) when off-line...

*Edit (None + None, Map + Sat (Hybrid), None + Sat, None + Map)

By utilizing 'hybrid' tiles you are reducing options available in a sense, as 
if one has downloaded only 'hybrid' tiles and not the relevent map or sat tiles 
they cannot, switch to 'map only' or 'sat only', if offline. A minor 
inconvenience perhaps, but thought i would make the suggestion anyways.

With regard to my question, i was wondering if you could tell me what the quota 
for satellite imagery files is roughly, as i appeared to be getting a few 404 
errors when downloading. As an after-thought are the hybrid tiles subject to 
the same quotas?

Thanks for your time, and keep up the most righteous good work dudes/dudettes!!!

- Dan Kinobi 

Original comment by ObiDanKi...@googlemail.com on 21 Jul 2010 at 4:34

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P.s i'm lazy though and those issue type form/templates look too troublesome 
for me =P. Thanks for bringing this issue to light prasenji ;). I shall try to 
move my ideas over to here if thats cool, i wasn't sure if you needed to like 
o.k it with the dudes in charge first before making suggestions man. =P 

-Jean Claude Van Dan.

Original comment by ObiDanKi...@googlemail.com on 21 Jul 2010 at 4:39

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Sorry but I don't think that's a good idea. 

 If we do that satellite and hybrid will be the same, we will be confusing users thinking they have hybrid view when they really don't, if user wants to see satellite images they can select the satellite option.  

Original comment by heldersepu on 21 Jul 2010 at 4:55

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The suggestion from ObiDan is not clear to me, we need to download hybrid tiles 
because those are images with transparency.

Maybe here is the answer to the quota question:
http://code.google.com/apis/maps/documentation/staticmaps/#Limits

Original comment by heldersepu on 21 Jul 2010 at 5:02

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O.k so you have map tiles and you have sat tiles, now all that hybrid tiles are 
(in my humble understanding) is a slightly transparent 'map' tile over the top 
of a 'satellite' tile.

O.k so i was saying rather than having to essentially download 3 different file 
types, sat,map and hybrid, instead if it was possible to use your program, to 
introduce transparency to the map tile and then link and layer it over the 
corresponding satellite image. If you could do this procedure within the 
program itself, it would negate the need to download a third data type 
'hybrid', as well as keeping various options (i.e map only, sat only, or 
hybrid), available to the user.
This would reduce overhead data costs/amounts by approximately 1/3 (assuming 
all tiles are the same size, which i am fully aware they are not;)as one would 
need to only download 2 data libraries as opposed to 3. 

A simple analogy would be the program is the palette and 'sat' is red and 'map' 
is blue. 
Rather than having to spend extra to buy a purple (hybrid), if you mixed the 2 
colours you could instead create a purple (hybrid) of your own.

This is of course assuming there is a possibility to somehow alter the 'map' 
tile to be transparent as part of the program code. Haha maybe its a bit 
complicated actually, but if you managed to get it working, it would 
drastically reduce data that needs to be downloaded..

Hope this helps explain what i meant =)

- Dan

Original comment by ObiDanKi...@googlemail.com on 21 Jul 2010 at 11:11

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it looks as though there are 2 different matters being raised here

1 as for 'parsing' the map into its data points then remapping it as an 
overlay, well aside from the fact that that's a vast amount of work, it would 
in most cases be against the map services' terms - that I've recently had cause 
to look at closely :-)

for the map service that allows creation of maps from data, see 
http://code.google.com/p/gmapcatcher/issues/detail?id=183

2 as for the OP's suggestion, it would be possible; although my own view is 
that the absence of viewable tiles in hybrid mode is the right behaviour, so 
you then change to sat mode to see the sat layer; an alternative would be a 
generic transparent 'missing overlay' image perhaps; no-one's stopping you from 
coding it, prasenjit :-)

Original comment by Mark111...@gmail.com on 25 Jul 2010 at 5:20

• Added labels: Priority-Low
• Removed labels: Priority-Medium

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Original comment by heldersepu on 13 Oct 2011 at 8:52

• Changed state: WontFix