More map files
Submitted: Tuesday, Nov 06, 2007 at 11:16
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Twinkles
Will OziExplorer open .pdf and .jpg files? Do I have to choose more options in installation to get it to open these?
Reply By: Member - Doug T (Qld) - Tuesday, Nov 06, 2007 at 11:32
Tuesday, Nov 06, 2007 at 11:32
.pdf and .jpg files are not Map Files, have nothing to with Maps , JPG is a photo format.The JPEG format, with its support for 16.7 million colors, is primarily intended for photographic images. The internal compression algorithm of the JPEG format, unlike the GIF format, actually throws out information. Depending on what settings you use, the thrown out data may or may not be visible to the eye. Once you lower the quality of an image, and save it, the extra data cannot be regained so be sure to save the original
And .pdf is a Portable Document Format and is the file format created by Adobe Systems in 1993 for document exchange. PDF is used for representing two-dimensional documents in a device-independent and display resolution-independent fixed-layout document format. Each PDF file encapsulates a complete description of a 2-D document (and, with Acrobat 3-D, embedded 3-D documents) that includes the text, fonts, images, and 2-D vector graphics that compose the document.
AnswerID:
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Follow Up By: Richard Kovac - Tuesday, Nov 06, 2007 at 22:02
Tuesday, Nov 06, 2007 at 22:02
Doug
maybe you need to read below.. LOL
:-))
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533433
Reply By: The Explorer - Tuesday, Nov 06, 2007 at 12:21
Tuesday, Nov 06, 2007 at 12:21
Hello - OziExplorer can use jpg image formats but does not support pdf. It is however possible to convert pdf to a supported image format if you have suitable program eg Adobe Acrobat or Photoshop. Think there is some free programs around as
well.
Any map image you choose to use in OziExplorer must first be calibrated/geo-referenced - if you are lucky someone will have done it for you, otherwise it is (generally) and easy process to calibrate yourself, after a bit of practice.
The calibration information is stored in a file by OziExplorer and is given a *.map extension (e.g. Bunbury SW.map) ...this is where some confusion arises with terminology as they are referred to as map files ...they are not the actual image though just the calibration data that allows the image to be opened and used in OziExplorer.
So to use an image in OziExplorer you need the image itself (e.g. Bunbury SW.jpg) in a supported format eg jpg, tiff, png).....and the associated calibration ("map") file (e.g. Bunbury SW.map).
Read the OziExplorer help file for more info on calibrating and supported image formats.
Cheers
Greg
| I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874 Lifetime Member My Profile My Blog Send Message Moderator |
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270322
Follow Up By: Member - Doug T (Qld) - Tuesday, Nov 06, 2007 at 22:22
Tuesday, Nov 06, 2007 at 22:22
Greg
I have used OziExplorer in the past and had the link where you have a waypoint and a Photo of that place will be shown ,but as said it is not a Map format file , yes you can have a photo of a map and that's all it will be , a JPEG photo , it will not do what a .gdb will do or a OziExplorer MAP File , ERS File, ECW File,
And as for OziExplorer CD
mine went in the bin , it's bloody useless ,
FollowupID:
533437
Follow Up By: The Explorer - Wednesday, Nov 07, 2007 at 00:21
Wednesday, Nov 07, 2007 at 00:21
Hello Doug & Dusty,
I get the impression that you (Doug, not Dusty…I assume) have got a bit confused with image formats, digital cameras, OziExplorer and terminology. Map images used by OziExplorer must be in a raster format. JPG is one such raster image format. Map images created for use for OziExplorer can be generated using a number of different methods (e.g. scanner, GIS program, screen captures, camera) but in the end it must be in a supported raster format.
Digital cameras also use raster images and JPG is one format to which photos are saved…and yes you can attach a jpg image created with a camera (i.e. a “photo”) to a waypoint in OziExplorer......….though my understanding of original post was that Twinkles was trying to find out how to utilise MAP IMAGES saved in pdf or jpg with OziExplorer. I and others provided some advice which hopefully proved useful. I don’t think Twinkles was trying to open photos in OziExplorer, but I could be wrong.
Whether on not OziExplorer is “useless” or not is a personal thing. 99.9999% of the people I know don’t have any use for it either so it comes as no surprise that you (or Dusty) don’t. I use it almost every day for work so have a different view in its usefulness, as I am sure other users do.
Cheers
Greg
| I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874 Lifetime Member My Profile My Blog Send Message Moderator |
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Reply By: StormyKnight - Tuesday, Nov 06, 2007 at 12:24
Tuesday, Nov 06, 2007 at 12:24
Yes you can use a jpg as a map (raster) in Ozi.
But the jpg by itself is virtually useless as it has no calibration info.
So, you need to load the jpg into ozi via File:Load & calibrate map & then calbrate it by selecting points on the map that you know the long/lat for. Oziexplorer then saves a .map file that contains the map.jpg & the calibration info.
Also you jpg map needs to be accurate & scaled of course.
As far as PDF is concerned...you need to convert your PDF to a jpg. Normally you can convert a PDF to a tiff & then in a graphics program you can then save it as a jpg to save space. You will need to do an internet search to find a program to do this though.
Cheers
Richard
AnswerID:
270323
Follow Up By: The Explorer - Tuesday, Nov 06, 2007 at 12:41
Tuesday, Nov 06, 2007 at 12:41
Hi Richard - would actually recommend converting calibrated images to OZF format, not jpg (or any other). This is a format specifcially designed for use with OziExplorer. Benefit over JPG (and most other formats) is faster loading time and better quiality image. If you are using OziCE on a PDA then OZF and ECW are the only supported formats so little choice in that case anyway.
The program for converting images to OZF is here
IMG2OZF
NOTE: Image must be calibrated first in Oziexplorer otherwise you will be unable to convert.
Cheers
Greg
| I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874 Lifetime Member My Profile My Blog Send Message Moderator |
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Follow Up By: StormyKnight - Tuesday, Nov 06, 2007 at 15:16
Tuesday, Nov 06, 2007 at 15:16
Yep I know, basic steps first though....
Cheers
Richard
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533342
Follow Up By: The Explorer - Tuesday, Nov 06, 2007 at 15:37
Tuesday, Nov 06, 2007 at 15:37
Wouldnt call using IMG2OZF a big step - no use stuffing around converting tiffs to jpgs etc ...you will loose quality. Save to OZF in first instance and get on with the job IMHO. Understand what you mean though, can get confusing when first using new programs. Can however help to pointout various possibilities - people can then choose to do what they feel comfortable with based on their knowledge and requirements. Difficult when providing advice on forums to judge what a person already knows and doesnt know - so tell them the full story and let them ask if the dont understand.
Cheers
Greg
| I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874 Lifetime Member My Profile My Blog Send Message Moderator |
FollowupID:
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Reply By: StormyKnight - Tuesday, Nov 06, 2007 at 12:24
Tuesday, Nov 06, 2007 at 12:24
Yes you can use a jpg as a map (raster) in Ozi.
But the jpg by itself is virtually useless as it has no calibration info.
So, you need to load the jpg into ozi via File:Load & calibrate map & then calbrate it by selecting points on the map that you know the long/lat for. Oziexplorer then saves a .map file that contains the map.jpg & the calibration info.
Also you jpg map needs to be accurate & scaled of course.
As far as PDF is concerned...you need to convert your PDF to a jpg. Normally you can convert a PDF to a tiff & then in a graphics program you can then save it as a jpg to save space. You will need to do an internet search to find a program to do this though.
Cheers
Richard
AnswerID:
270324
Reply By: Member - JohnR (Vic)&Moses - Tuesday, Nov 06, 2007 at 12:32
Tuesday, Nov 06, 2007 at 12:32
Twinkles, the map this is available for download of
the Pyrenees on EO Members FileSwap is actually a processed *.pdf file to a *.jpg, then calibrated to Oziexplorer. You will have paper versions of it available and also available on a memory stick too when you get there. Have versions available for PDA too, but the downloadable one on EO does all of those.
May be good to have some discussion on Ozi, as I think Glenn is taking a video projector.
AnswerID:
270325
Reply By: Ozboc - Tuesday, Nov 06, 2007 at 13:51
Tuesday, Nov 06, 2007 at 13:51
HI there - send me an email
Boc1971@hotmail.com
i have topo maps that cover ALL of NSW and VIC ( 25 k maps ) with calibration files -- just install and away you go ....
Boc
AnswerID:
270342