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fpw / avitab

X-Plane plugin that displays a tablet to aid VR usage
GNU Affero General Public License v3.0
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Feature Request - Support for Lambert Conformal Conic Projection maps #19

Open scolebrook opened 5 years ago

scolebrook commented 5 years ago

Air Services Australia produce many maps in LCC projection. It would be great if avitab could support that in addition to Mercator. Thanks for such an incredibly useful plugin.

fpw commented 5 years ago

The problem with the Lambert projection is that selecting two points is not enough to calibrate an image - the user will also have to enter the so-called standard parallels and they vary from country to country. I'm not sure if this is widespread knowledge among pilots - would you know the standard parallels for your charts?

scolebrook commented 5 years ago

For Australia at least, the standard parallels used are printed on the chart. They vary from chart to chart.

fpw commented 5 years ago

Are they published online as PDF or did you scan them yourself? If PDF, maybe they are geo-referenced and I could just add that format. Do you have an example map?

scolebrook commented 5 years ago

This is a Terminal Area Chart. https://www.airservicesaustralia.com/aip/current/aipchart/tac/tac1_24MAY2018.pdf

This is a high enroute chart. https://www.airservicesaustralia.com/aip/current/aipchart/erch/erch2_24MAY2018.pdf

This url will allow you to download other kinds of charts, some of which use Mercator. https://www.airservicesaustralia.com/aip/aip.asp?pg=60&vdate=24MAY2018&ver=1

oobayly commented 2 years ago

I know this is very old, but I've managed to generate slippy (EPSG 3857) from maps like this using QGIS. If anyone is still interested I can put together some instructions on how I did it.

dave6502 commented 1 month ago

I know this is very old, but I've managed to generate slippy (EPSG 3857) from maps like this using QGIS. If anyone is still interested I can put together some instructions on how I did it.

That's cool. I know this is very old, but would it be possible to put together some instructions on how you did it?

oobayly commented 1 week ago

@dave6502 Sorry - only saw this today. Let me have a look at putting something together.