Update for Wiki for starmap alignement

[creinemann]

@EricClaeys , I have a few hints for working out the starmap overlay alignment process.

1. In virtualsky.json set "transparent": false, this lets you see the star map overlay much clearer, you can set it back to "transparent": true after you have aligned the map. Also set "mouse": false, as you don't want to change the rotation by hand, this will be done by changing the azimuth.
2. Every time I made a position change, I have to clear the image cache on my browser, then refresh the page, or it would NOT show the changes, especially when editing config.js and virtualsky.json
3. After you have sized the image to match (Hint, open your allsky image in a new window it will tell you your actual image size.) then you can begin alignment using:
   overlaySize: 1022, overlayOffsetLeft: -35, overlayOffsetTop: -205, With your numbers of course for size!
4. Once you have it close to the alignment, then you will need to edit and add to the config.js The azimuthal offset with 0 = north and 90 = east, so, starting with az: 180 as your default, changing it to say az: 135 would rotate the starmap over the image counterclockwise. Changing the value to az: -135 would rotate the starmap clockwise over the image. I would start with small changes of 5° and then fine-tune it with 1° changes. If you get it wrong, you can always set the default back to az: 180

Here is my config.js as an example: NOTE that when you add the az: 180 line the , needs to be added at the end of whatever line is above it, in this case, showOverlayAtStartup: false, and NO , on the last line!

var config = {
    title: "Jefferson, WI - USRADIOGUY.COM",
    imageName: "image.jpg",
    location: "Jefferson",
    latitude: 43.0,
    longitude: -88.8,
    az: -179,
    camera: "Raspi HQ",
    computer: "Raspi4-64gb storage",
    owner: "Carl Reinemann",
    auroraMap: "north",
    overlaySize: 1022,
    overlayOffsetLeft: -35,
    overlayOffsetTop: -205,
    auroraForecast: true,
    showOverlayAtStartup: false
}

Clearing the image cache on your browser and reloading the page is usually necessary to see any changes.

Here is my page for an example.https://usradioguy.com/allsky/

All this was done when I had a cheap, but true fisheye lens. I am now using a 120° lens, and am working on altering the script for the starmap to be true for 120° rather than 180° fisheye lenses

[EricClaeys]

@creinemann What timing! I put my camera back on its pole today after a long hiatus. I increased the image size from the default 960 pizel width, which required realigning the sky overlay, so I created a Wiki page on how to do it.

Check it out. It has a solution to having to clear the cache. I will fold your comments in. Thanks for providing them.

[creinemann]

for your WIKI update - In the default config.js in the latest version, there is no default az:180 that line has to be added.

Carl
https://github.com/creinemann

[EricClaeys]

@creinemann Carl, the version of config.js that's installed has az of 180, and has a comma after the last vaeiable. Check it out here.

[creinemann]

I stand corrected! and updated my post.
Carl