GHA
Well-Known Member
i wrote this up yesterday to help someone on an another forum and though it might be of interest to some one here..
So basically you can turn any image into a chart , so say the latest Deban bar entrance chartlet is available online- you can turn that into a chart which opencpn will recognize and treat as a chart. Or any nav prog which can view kap files probably, I only know opencpn (why go anywhere else
)
here's how,..
.........................................
an overview of ge2kap..
Download here - http://gdayii.ca/Downloads/Test_GE2KAP.V23.0.1.21.exe
You also need seaclear here-
http://www.sping.com/seaclear/#DOWNLOAD
And xnview--
http://www.xnview.com/en/
1.Download a chart image
2.Open with xnviewMP (press esc to get out of full screen so you can see the menu) (Only checked wirth jpegs but it looks like it can open most image files, if not you could try to save as jpeg)
3.Save as (your filename of choice).png
4. In menu Tools|batch convert|actions set colours to 64 and click convert to save
5. Run seaclear program MapCal_2.exe, open up the file you just saved and name it, set projection to mercator
6.Right click to set 4 calibration points, adding lat and long for each one. Click the border tab and click add border to image. Click file|save calibration.
7.Run GE2KAP, set the chart location name to where you want to save the chart file \(my chart name of choice).kap. Select the .png file you calibrated in the other overlay chart/... box. Select create chart from overlay. Do not use google earth. Then click create chart and wait a while....Tadaa!
Point opencpn at it and there you go
Hope this might be of use to someone, you can do the same for tidal stream images etc.
So basically you can turn any image into a chart , so say the latest Deban bar entrance chartlet is available online- you can turn that into a chart which opencpn will recognize and treat as a chart. Or any nav prog which can view kap files probably, I only know opencpn (why go anywhere else
) here's how,..
.........................................
an overview of ge2kap..
Download here - http://gdayii.ca/Downloads/Test_GE2KAP.V23.0.1.21.exe
You also need seaclear here-
http://www.sping.com/seaclear/#DOWNLOAD
And xnview--
http://www.xnview.com/en/
1.Download a chart image
2.Open with xnviewMP (press esc to get out of full screen so you can see the menu) (Only checked wirth jpegs but it looks like it can open most image files, if not you could try to save as jpeg)
3.Save as (your filename of choice).png
4. In menu Tools|batch convert|actions set colours to 64 and click convert to save
5. Run seaclear program MapCal_2.exe, open up the file you just saved and name it, set projection to mercator
6.Right click to set 4 calibration points, adding lat and long for each one. Click the border tab and click add border to image. Click file|save calibration.
7.Run GE2KAP, set the chart location name to where you want to save the chart file \(my chart name of choice).kap. Select the .png file you calibrated in the other overlay chart/... box. Select create chart from overlay. Do not use google earth. Then click create chart and wait a while....Tadaa!
Point opencpn at it and there you go
Hope this might be of use to someone, you can do the same for tidal stream images etc.