Comment: EOTopo

Submitted: Friday, Feb 28, 2014 at 15:34
ThreadID: 106466 Views:1554 Replies:2 FollowUps:2
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Just happened to look at an area I know well, Girraween NP near Stanthorpe. The old Natmap SH5602 (Warwick) error of showing Castle Rock southwest of Mt Norman still exists. Its location is actually at -28.8436, 151.9449 GDA 94, as shown on the 9420-21 Girraween 1:25000 topo map.
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Reply By: Echucan Bob - Friday, Feb 28, 2014 at 16:03

Friday, Feb 28, 2014 at 16:03
I've been using the EOTopo Online map for some trip planning and its sensational. I've purchased EOTopo 2014 for use in Memory Map, and unfortunately is nowhere near as attractive as the online version. Does the SD/USB version approach the useability of the online version? Would it be possible to release a version that mimics the online version? Could the clever mappers tell me how to save screenshots of the online version for use with OziExplorer?

Bob
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Follow Up By: AdrianJansen - Friday, Feb 28, 2014 at 17:30

Friday, Feb 28, 2014 at 17:30
Screenshots are easy. Under Windows, just use PrintScreen to get an image of the area, paste it into some image program like irfanview, and save it as a .png file. Open that in Ozi, or use an image converter to convert to ozf4 format. Then comes the harder part. You have to identify 3-4 well separated points on the map and provide accurate lat-lon or UTM references for them, and use them to 'calibrate' the map so Ozi knows where it is. A fair bit of manual work, but it is doable.
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Reply By: The Explorer - Friday, Feb 28, 2014 at 22:06

Friday, Feb 28, 2014 at 22:06
Hi...you can't convert images e.g png etc to ozf4 until image is calibrated.

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Greg
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Follow Up By: AdrianJansen - Monday, Mar 03, 2014 at 12:07

Monday, Mar 03, 2014 at 12:07
You are correct. The sequence is to convert the screenshot image from png ( or tiff, or any other format OZI will handle ). Open that in the Map Calibration menu of OZI, set known points on the map for calibration, then save the calibration, to produce the map file ( separate from the image file ). Open the map file in the ozf conversion program and use that to convert to ozf4 map format.
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