John S. replied to the topic 'NGC Objects Thumbnails for object planner?' in the forum. 2 weeks ago

I am not sure what the deal is, but it seems the initial placement of the window is confused. I hit the move window button a few times and the window goes to where it's supposed to and then things seem to act normally. I am not sure if there is a way to force it to be docked when first opened or not, but it doesn't seem to be going that way by default.

FYI - I have completed both the NGC and IC thumbnail object pulls from the NASA SkyView site and have made them available to knro for further review and possible implementation. I have no doubt there is more work to be done there as I did not do a thorough QA on each image. Give me some slack since there wer eover 13000 of them. :)

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John S. replied to the topic 'Cheap USB Webcam and platesolving' in the forum. 2 weeks ago

Ok. That makes sense. The interesting part is when I set the C270 to YUYV encoding instead of MJPG, it is able to do captures. I tried an experiment there and you are correct that I can not adjust the exposure length to hold the shutter open longer. It may very well be beyond the hardware capabilities of the webcams. I still get nothing woth MJPG for either capturing a still or live streaming of video though. I do notice that there are different settings available in guvcview for the cheap webcam vs the c270. The C270 allows me to put exposure into manual, and adjust it out to a longer value (but looks like might max out at 1/2 second). It also allows me to set manual gain. Perhaps the author of that program would be willing to help you understand how he got those abilities reported to him and that might give us some help. I expect the webcams probably have a max shutter time though and this might just be beyond their capabilities.

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John S. replied to the topic 'Cheap USB Webcam and platesolving' in the forum. 2 weeks ago

I just tried the cheapy webcam and it does not appear to be able to capture in mjpg mode in ekos still.

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John S. replied to the topic 'Cheap USB Webcam and platesolving' in the forum. 2 weeks ago

@TallFurryMan, originally, I came up with the idea of throwing a cheap usb webcam onto the Celestron GT mount with 4.5" Newt I gave my brother. He doesn't know the night sky at all and my theory is that this could help him by plate solving what he was looking at. The intent was to just attach the webcam to the Newt inline and capture a picture good enough to plate solve.

So I found a couple of webcams I had lying around, a cheapy no-name one and a Logitech C270. Initially, I was unable to get either of them to capture when selected as the imager in Ekos even though both seemed to work properly under the Linux host operation system. Playing around, I noticed that the cheap webcam supported less modes than the C270. What I discovered was that if I changed the mode from MJPG on my C270 to YUYV ekos could then take a capture.

The cheapy webcam did not support YUYV and none of its other modes worked either. I concluded at that point that MJPG was broken in Ekos. I haven't had a chance to confirm since the update this morning that supposedly fixes it. I should be able to do that shortly though. Whenever the camera is in a mode Ekos has an issue with, it just 'spins' when trying to do a capture using that device and never downloads the image.

Did that answer your questions?

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John S. replied to the topic 'NGC Objects Thumbnails for object planner?' in the forum. 2 weeks ago

I have confirmed installing those three packages has changed the behavior so that what's interesting launches and opens a separate window instead of embedding itself in the kstars window. Perhaps I am missing another QT or QML package? I suggest we make whichever of those 3 packages I installed (if not all) dependencies on installing kstars so this doesn't happen to someone else.

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John S. replied to the topic 'NGC Objects Thumbnails for object planner?' in the forum. 2 weeks ago

I think I have the what's interesting problem at least partially solved. Apparently, Linux Mint does not install the the QT packages by default.

sudo apt-get qtcreator qtdelarative5-dev g++

This got things going, but it does pop up a separate window when launching. I am able to make the window go away by clicking the window box next to the X for the tool. Not sure what could be going goofy there. We may want to continue that discussion in a separate topic.

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John S. replied to the topic 'NGC Objects Thumbnails for object planner?' in the forum. 2 weeks ago

I found a wiview.qml file out there listed as part of kstars source. I downloaded it and temporarily replaced it with the different version one. It did not make a difference in behavior. I still get a blank popup window and half of the kstars window goes blank. Are there any package or library dependencies that I could be missing here?

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John S. replied to the topic 'NGC Objects Thumbnails for object planner?' in the forum. 2 weeks ago

It seems odd that file isn't getting updated. Where do I download it from to test and see if that is the problem?

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John S. replied to the topic 'NGC Objects Thumbnails for object planner?' in the forum. 2 weeks ago

I found the file in /usr/share/kstars/tools/whatsinteresting/qml. I am not sure what version it is, but it has a date stamp of Apr 2, 2017 at 14;57

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John S. replied to the topic 'NGC Objects Thumbnails for object planner?' in the forum. 2 weeks ago

Sorry. It's actually Serena, not Sarah. Attached is what I get when I try to run what's interesting. Again, since all three systems are linux mint 18.1, I suspect the issue is somewhere in there. Anything I should check for?

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John S. replied to the topic 'NGC Objects Thumbnails for object planner?' in the forum. 2 weeks ago

I have three completely different systems, but they are all running linux mint 18.1 (Sarah). That is most likely the common thread.

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John S. replied to the topic 'NGC Objects Thumbnails for object planner?' in the forum. 2 weeks ago

I can't get the what's interesting feature to work right on my systems. I am not sure what I am doing wrong, but I only see a blank screen on the right side there.

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John S. replied to the topic 'NGC Objects Thumbnails for object planner?' in the forum. 2 weeks ago

Here's an example of how NGC 2024 looks for me in Kstars now in the observation planner

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John S. replied to the topic 'NGC Objects Thumbnails for object planner?' in the forum. 2 weeks ago

I have the images automatically scalling between 200x200 and 1000x1000 pixels based on the objects overall size. I believe knro is going to incorporate this as a downloadable addon to kstars once I get it to him.

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Eric thanked John S. in topic Cheap USB Webcam and platesolving 2 weeks ago
John S. replied to the topic 'NGC Objects Thumbnails for object planner?' in the forum. 2 weeks ago

I have built scripts based on the major and minor axis values being the X and Y sizes in arcminutes. I have done a test pull of IC 10 and can confirm that the thumbnail works when copied to the $HOME/.local/share/kstars directory. I am going to go ahead and do the same run to grab and compress all of the PNG files for the IC list. I should be able to complete that tomorrow and upload both the NGC list and the IC list thumbnails to wherever you need me to send them.

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John S. replied to the topic 'Cheap USB Webcam and platesolving' in the forum. 2 weeks ago

Awesome. Works for me. :)

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John S. replied to the topic 'NGC Objects Thumbnails for object planner?' in the forum. 2 weeks ago

Are the major and minor axis the apparent size in arcmin for x and y?

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