Hi,

Can anyone tell me if there is an option to link choices under a given task? For example, if I have a task X which gives the choice of using the bezier tool and the crosshair tool to mark a point, is there any way that I can make the second choice compulsory if the first one is chosen? (i.e if I use the bezier tool I HAVE to use the crosshair tool for the classification to be valid)

Thank you!

Hi @vrooje,
I am currently working on the development of a version of the Milky Way Project built using the Zooniverse project builder.
We have a tool to classify stellar wind bowshocks in the workflow and this is what I have come up with so far. The choices available are:
Use the Bezier tool to identify (and draw) the bowshock
Use the crosshair tool to identify the star responsible for creating the bowshock.

Ideally, I would have liked to link these two tasks together in order to make the classification of the star a requirement, hence the request for the choices to be "linked". But as you said, we should be able to weight the classifications accordingly to discard those that were incomplete.

If you guys develop the capability to link choices in the future, that'd be great though!

Thank you for your reply!~

-Tharindu

Hey there zooniverse! Ive recently started using an iPad and Apple Pencil to assist me in helping various projects, but have noticed a few issues. The first specific issue I’ve noticed is that, in the mobile app, under the Spiral Graph project - which uses the “freehand segment line tool” - the placement of the pencil on the screen vs where the lines actually appear are off by about a half inch, and usually appear above where I’m trying to trace, I’ve been able to combat this using mobile web browsers but prefer the application to save battery life. Radio galaxy project also has issues detecting where I’m trying to place the crosshairs in a similar way to spiral graph

The second issue I’ve noticed is that the app does occasionally crash while working throughout the app. Just suddenly freezes and force quits. I was simply hoping to request a possible app enhancement/bug fix update for us dedicated zooniversers on iOS!

Thank you so much!

Hey there zooniverse! Ive recently started using an iPad and Apple Pencil to assist me in helping various projects, but have noticed a few issues. The first specific issue I’ve noticed is that, in the mobile app, under the Spiral Graph project - which uses the “freehand segment line tool” - the placement of the pencil on the screen vs where the lines actually appear are off by about a half inch, and usually appear above where I’m trying to trace, I’ve been able to combat this using mobile web browsers but prefer the application to save battery life. Radio galaxy project also has issues detecting where I’m trying to place the crosshairs in a similar way to spiral graph

The second issue I’ve noticed is that the app does occasionally crash while working throughout the app. Just suddenly freezes and force quits. I was simply hoping to request a possible app enhancement/bug fix update for us dedicated zooniversers on iOS!

I’m on iOS 13.5 using the latest iOS app release

(Repost from mobile app forms for visibility)

Thank you so much!

As is usual for me I started by looking at Notes - the community is as important to me as the project. Firstly this is one of those that seems the entire point is to be the first to post that so and so saw a mover and hash tag it as though a) the research team needs someone to hashtag every mover to get results rather than some analysis of actual data , and b) it matters that so and so is a freaking genius and got that subject presented to them first...
I was lucky to tumble on this discussion 10727740 (I was actually looking for some intelligent discussion of more than one me-first hashtag, and this one had 7or 8 comments and some from the researchers). From the subject images I could hardly tell what was and was not moving, Then near the bottom @MvGulik had posted the subject images so the stars were superimposed and Bingo! two obvious movers - so clear and obvious.
So I walked away. There may be a strong case for the way the data is presented with some stationary crosshairs and all the stars and asteroids shifting around but it look like too much of a headache to sort out when superposition of the stars seems so basic...

One of the issues I see with programs like the Comet Search is that there isn't sufficient information given in the tutorials. How do you define such things as "Is the center region of the asteroid image (purple crosshairs) crowded?." What does a crowded image look like? What do bad pixels look like? I think I know, but there needs to be samples in the tutorial. "Has the asteroid overlapping another star or galaxy." How about a sample? What do you do if you think there might be a very small tail, but then again you are not sure because if there is it is very slight...

Can you help us out?

Marvin W. Huddleston
kc5lei@sbcglobal.net

Good day @md68135 ,

I can't recall any projects with an existing tutorial to explain the use of Polygon tool, but I can help write a quick guide to explain it. Please adjust as necessary for your project and for your volunteers, since what I write may fall into some unnecessarily technical dev verbiage. Here we go:

For volunteers:

• The Drawing Task's Polygon tool is used to mark areas or shapes on a Subject image.
• To make a Polygon mark (aka a single visual annotation) on a Subject image, select the Polygon tool from the drawing task.
• When you move your mouse cursor onto the Subject image, it should now be in the shape of a "crosshair" to indicate you can start making marks.
• Click on the Subject image to place the first "node" of the polygon.
• Keep clicking to place more nodes. You should be drawing a polygon around the shape/area you're trying to annotate.
• To complete the polygon mark, you must "close" the shape. To do so, either click on the last node you created (it should be indicated by a circle surrounding the node) OR click on the first node of the polygon.
• You can select an existing polygon mark to adjust the position of individual nodes, or move the whole polygon mark. Just click and drag.
• You CAN'T add or remove nodes to an existing polygon mark. You'll need to delete it and start again, I'm afraid.
• NOTE: please don't create polygons with less than 3 nodes.

This guide would be made much easier with images/screenshots, of course.

(Dev note: The above has been verified for drawing tasks on the PFE codebase. The FEM codebase has slight differences, such as automatically deleting polygons with less than 3 nodes, and being unable to edit nodes of existing polygons marks.)

After you zoom in you should be able to select the move tool (it looks like a crosshair) to scroll to different parts of the zoomed-in image.