FSMap - NACO Chart Calibration

[Bman2010]

Ok, now I have 3 posts in a row! Don't hate me
I figure I will pass the knowledge along to the next person who comes asking me.

It the center LON really the biggest variable that causes the calibration to get out of alignment? Assuming the calibration points are right on known map lat / lon coordinates, it seems to be the only thing that will cause the scale of the calibration to get out of alignment.

I just practiced on another chart - it seems the center airfields are right on and then as you get away from the center, they get more out of alignment - that sounds like a center longitude no being correct...I think..

Also, is the easiest way to check the overall calibration to go to the moving map area and look at...then go back to manage maps to adjust?

Benjamin.

[Bman2010]

I am going to keep the question coming...I am making headway:

1) I bought a digital map from NACO - it came with .tfw file. When I import the map, FSMap gives me a .prj error. Why?

2) I also get an .html file with the downloaded sectionals..... the bonus.... it lists the projection centers! Man, that makes it a lot easier!

3) The toggle map display coverage doesn't show me the maps that are adjacent nor show the map names anywhere. Where am I supposed to be looking?

...I am still pecking away at this. I am getting better but have T-8 days left of the demo

Thanks Thomas!

Benjamin.

[Bman2010]

For the record, I am now a card carrying registered member.

Last couple of easy questions:

1) What do the check boxes do in the Manage Maps explorer window do? I would suspect it loads and unloads charts but it doesn't do anything

2) Toggle Map display doesn't do anything - it doesn't show the name nor the adjacent maps...

Sorry to keep pounding the questions. I am almost on my way.

Benjamin (Bman.)

[Thomas Molitor]

Hi,

the center Lon value is the one with the highest impact, if the two parallels are correct. Hope you get the calibration done for the rest of your maps.
The boxes enables or disables a map, so they won't show up. The map coverage function is broken with v1.2, but I'm already testing a fix for it.
TFW normally requires a PRJ file, which contains more details on the calibration. If this is missing you need to manually calibrate the map.

Regards

Thomas

[Bman2010]

Thanks Thomas - I have purchased a stack of charts from NACO and I have been calibrating them with excellent success since they provide the geographical data. No more guessing on the LON centers...

Map Coverage issue - glad to hear there is a fix coming. What I have found is that the adjacent charts won't load-up in the moving map gauge either - is this part of the same issues? The initial chart will load up from where my flight originates but before long I am flying over black map coverage since the adjacent chart doesn't load. Is there any way to force the adjacent loading of maps in the gauge?

In general, let me know if I can test anything for you regarding the fix.

Thanks-

Benjamin.

[Thomas Molitor]

Make sure that those adjacent maps are enabled and have the right chart type (IFR, VFR, etc.). Also check the map boundaries.

Hope this helps

Thomas

[Bman2010]

Indeed Thomas - I think the boundaries was the issue. I re-calibrated some maps last night with additional georeference data and everything worked out just fine.

I believe that I have knocked out all of my questions and issues (with exception to the adjacent chart view you know about).

Thanks for your patience and help! It really has set me on my way. If any one needs help calibrating NACO US sectional charts - I now can say I finally know how to do it. Of course, it really helps they provide the centers and map bounding.

Benjamin.