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  1. #141
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    bitmap1 - day background
    bitmap2 - day arrow
    bitmap3 - day sign
    bitmap4 - night background
    bitmap5 - night arrow
    bitmap6 - day copyright <- last day bitmap displayed so it will hide all bitmaps below (iff it doesn't have transparency)
    bitmap7 - night copyright <- last night bitmap displayed so it will hide all bitmaps below (iff it doesn't have transparency)
    ????????????? Where have you seen this???????? It is just an invention!!

    In all the JCV files I have parsed , each night layer is either the same as the day layer (so the 8 bits are 10000001) either it immediately follows the corresponding day layer.

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  3. #142
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    @osiris4isis
    If you want, give me an example of JCV4 record and I would detail you the way to parse it (but I have already explained this, as I said in PM)

    But maybe we should do this in another thread? (a dedicated thread if you see what I mean)
    Last edited by sherco40; 24th August 2015 at 13:34.

  4. #143
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    It's common knowledge that such Asian JCVs do not contain separate pictures for the background, for arrows or signs.
    The useful day or night layer of these JCVs is the whole picture (all-in-one), which shows all at once.

    In my opinion, it makes no sense to flog a dead horse.

  5. #144
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    Quote Originally Posted by sherco40 View Post
    Osiris4isis: please read what I wrote and don't make me say what I have not said.

    Point by point:
    I had written "The Asian JCV have 4 pictures" and it is exact (of course other JCV have various combinations of pictures and layers): all the JCV4 records of an Asian JCV contain 4 pictures!!!
    A layer is stratum in a view: generally (but not always) a junction view is made with several layers.
    No, it is not as simple as this: ImgTool builds the junction views using the 8 bits following each JCV2 pointer to determine if the bitmap must be embedded in the view or not. Moreover a layer can be a bitmap (png, jpeg) or a vector layer inside a vector SVG file
    No, I have never said that
    ????? Why are you writing this???? Have you seen an example? I have never seen this and I would be very surprised that a JCV file should have a number of layers different for night than for day.
    Please, read what I wrote: in the pointers bitstream, all the pointers are sequentially read from start to end. Each pointer is followed by 8 bits indicating if the pointed picture is used for day or night or day&night and each following picture is displayed over the previous. There is no fake (maybe we are not using the term "fake" with the same meaning) in the meaning that all the pointers in JCV4 are real and they point to real pictures in JCV2
    ???????????????? It's Chinese for me (and I don't understand Chinese....)
    Like I said, it's fine to always assume "locked" asian JCV's to always have 4 bitmaps, from a set of day and a set of night. So you always treat the LOCKED JCV as having [day][night][copyright day][copyright night] and always copy the frst "half" to the second half (thus effectively making the copyright's correct. I refer to "real" as the first half and "fake" as the second half.
    But this solution is a kludge (hacked) and not a true/good fix*. This is the reason that I wanted to ask syzygy how's it done. He mentioned the "end of list" bit. But unless day and night can be represented as one bit (thus not able to use both), the there is no "end of list" bit. No where in any of my posts that I insisted on the existence of the "end of list" bit, so please do not keep telling me that there is no "end of list."
    BTW, which SVG lib are you using to parsed/display SVG's? Not the same Adobe plugin that required to be installed?

    * I separate facts from assumptions. Here is example, the parsing of JCV2 pointer within JCV4 is fact because it's consistent. Thinking that locked asian JCV's always have 4 bitmaps is assumption (just because there isn't any other cases that you can find so far, doesn't mean that it won't be)

    P.S. I don't understand Chinese neither.
    Last edited by osiris4isis; 24th August 2015 at 22:31.

  6. #145
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    Quote Originally Posted by sherco40 View Post
    ????????????? Where have you seen this???????? It is just an invention!!

    In all the JCV files I have parsed , each night layer is either the same as the day layer (so the 8 bits are 10000001) either it immediately follows the corresponding day layer.
    And because of this "consistency", it's the reason why syzygy interpretation of "end of list" bit works for his tool.

  7. #146
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    BTW, which SVG lib are you using to parsed/display SVG's? Not the same Adobe plugin that required to be installed?
    ieframe.dll (via a vb6 control)

    * I separate facts from assumptions. Here is example, the parsing of JCV2 pointer within JCV4 is fact because it's consistent. Thinking that locked asian JCV's always have 4 bitmaps is assumption (just because there isn't any other cases that you can find so far, doesn't mean that it won't be)
    ALL is assumption because we do not have the specifications of Garmin. Even the parsing of JCV2 pointers is assumption ....

  8. #147
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    Quote Originally Posted by Cnfhbr View Post
    It's common knowledge that such Asian JCVs do not contain separate pictures for the background, for arrows or signs.
    The useful day or night layer of these JCVs is the whole picture (all-in-one), which shows all at once.

    In my opinion, it makes no sense to flog a dead horse.
    Different bitmaps for background, arrows and signs
    Spoiler: Horse is still alive!

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  9. #148
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    Quote Originally Posted by osiris4isis View Post
    Different bitmaps for background, arrows and signs
    Horse is still alive!
    Your example is not correct in this instance.
    I wrote only about the "locked" JCVs that contain a copyright layer and relevant to this thread (like Indonesia, Philippines, Singapore & Malaysia and Thailand).
    Your JCV of HongKong-Macau has no relation to such JCVs.

  10. #149
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    Quote Originally Posted by Cnfhbr View Post
    Your example is not correct in this instance.
    I wrote only about the "locked" JCVs that contain a copyright layer and relevant to this thread (like Indonesia, Philippines, Singapore & Malaysia and Thailand).
    Your JCV of HongKong-Macau has no relation to such JCVs.
    And if they decided to "locked" it using the kludge, how do you think they will do it? They will add copyright image as last bitmap for day and night set.

  11. #150
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    Quote Originally Posted by osiris4isis View Post
    And if they decided to "locked" it using the kludge, how do you think they will do it? They will add copyright image as last bitmap for day and night set.
    No, I don't think so, given the existing firmwares.

 

 
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