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IDProjectCategoryView StatusLast Update
0001617SkyChart1-Softwarepublic17-01-25 10:29
ReporterSasa Assigned ToPatrick Chevalley  
PrioritynormalSeverityminorReproducibilityhave not tried
Status resolvedResolutionfixed 
PlatformLinux 32-bitOSKubuntuOS Version16.04
Product Version3.11 SVN 
Target Version4.0Fixed in Version3.11 SVN 
Summary0001617: Neighbor list - to limited
DescriptionIn "About object/Detail" form, "Neighbor" button should list nearby objects. However, in PDF help is not specified what "nearby" exactly mean.

For instance, when look at and right click on Jupiter (attached chart) to see details, on "Neighbor" button is listed only Jupiter and Adrastea.

I would expect all Jupiter's satellites in list. However, it is relative what "nearby" exactly means.
TagsNo tags attached.

Activities

Sasa

17-01-24 22:11

reporter  

Jupiter.cdc3 (11,161 bytes)

Patrick Chevalley

17-01-24 22:49

administrator   ~0003559

The neighbor button list the same objects as if you Shift+click at the same position, or use the popup menu "all objects at this position". The search radius is the mouse cursor circle.

The goal of this function is to allow to select objects at a too short distance to be selected otherwise, the extreme case is two objects at the same pixel location. For example on a wide field map you want to select Theta Orionis but you always get M42. Click Neighbor and then Theta in the list.

Maybe Neighbor button can give a bit wider area, between the cursor circle and the full screen list given by the object list button?

Sasa

17-01-25 08:04

reporter   ~0003560

Thank you for explanation.

For me, "neighbor" term is more related to local group of objects, rather than objects after 2D projection, as this rečated with planetary satellites, double starts, constellation... However, that may be quite complicated to achieve.

Yes, it would be nice if you could just enlarge a bit the area, if not introduce any further complexity.

Patrick Chevalley

17-01-25 10:29

administrator   ~0003561

Searching for parented objects can be very complicated, the only simple case is planet and satellites. But we generally not have the information for most objects.

I increase the search radius to 50 pixels when you click the Neighbour button.
Also the list header show the search radius, making thing more clear.

rev 3460: https://sourceforge.net/p/skychart/code/3460/

Issue History

Date Modified Username Field Change
17-01-24 22:11 Sasa New Issue
17-01-24 22:11 Sasa File Added: Jupiter.cdc3
17-01-24 22:49 Patrick Chevalley Assigned To => Patrick Chevalley
17-01-24 22:49 Patrick Chevalley Status new => acknowledged
17-01-24 22:49 Patrick Chevalley Note Added: 0003559
17-01-25 08:04 Sasa Note Added: 0003560
17-01-25 10:29 Patrick Chevalley Status acknowledged => resolved
17-01-25 10:29 Patrick Chevalley Resolution open => fixed
17-01-25 10:29 Patrick Chevalley Fixed in Version => 3.11 SVN
17-01-25 10:29 Patrick Chevalley Target Version => 4.0
17-01-25 10:29 Patrick Chevalley Note Added: 0003561