Installing ds9

Lastly, the local iraf admin might not have run the install script on the local iraf NFS client machine at all. You can also use the zscale parameter to auto determine z1,z2. What actually is sent from IRAF to DS9 is one byte per pixel, values , which already has applied both the upper and lower clipping bounds and the distribution.

The ruler region is mainly used for interactive measurements. For printed output, use the LINE region to create a distance indicator. In the line region dialog, there is a read-only entry that indicates the length in pixels, degrees, arcmin, or arcsec. Edit to the desired distance and enter the desired label, including ' or ", in the region text labile entry. You have the option of arrows at each end of the line. I can make some wonderful color images in DS9 and save them as postscript files that look great, but often when I print them they appear washed out or very different than they do on the screen.

My question then is what, if anything, can I do about this? The problem is that you create an image on a display, which is the product of RGB colors red, green, and blue and print the image on a printer, which is the product of CMYK colors cyan, yellow, magenta, and black. Furthermore, every monitor is different in how it will display a certain color, and every printing technology is different in how well it will reproduce that color. It's possible to calibrate your monitor and your printer, to create a translation matrix, to correct for problems outlined above in the Macintosh world, this is what ColorSync does.

The idea is to apply a gamma correction to the output of DS9, so that it will print much more in line with what you expect. To do this you'd need special software and hardware, and its only valid for your monitor and your printer.

In summary, its not worth it. Especially in the case of publication, such as ApJ, where you have no idea on what printing technology will be used to reproduce your image. So the only control you have is to calibrate your monitor and to hope for the best. However, there are some rules of thumb that might help. First, printers have a very hard time with blues and purples , as they tend to be washed out. Either avoid these colors, or over compensate these colors. ApJ has a good idea in that you send in both an electronic version and a hard copy of your color image.

That way, they can manually adjust the printers to try to match your output. From personal experience, if you send RGB, the printed results will be closer to the original.

In the proofs, the violet is washed out and looks similar to the black, and the blue is not nearly as intense. There are two issues here: first, color printers are notorious for failure to reproduce blues and purples correctly. Below is an excerpt from an industry pamphlet:. They are said to be "out of the CMYK color gamut". What happens is that the RGB-to-CMYK translator just gets as close as possible to the appearance of the original and that's as good as it can be.

It's something that everyone in the industry puts up with. That way, you will have a better idea of how they will appear in your printed piece. We recommend a CMYK value of to get a nice clean blue. For this reason, you may wish to use the RGB color space or colormaps without deep blues and purples, such as BB or Heat.

Assuming you have direct IP reachability between the machines i. Once these two setup steps are performed, you should be able to send commands to DS9 and receive data from DS9. You can look at the xpaacl man page for more information. I have a laptop, that most of the time, is connected to a network. DS9 runs fine. However, when I'm not connected to a network and I start DS9, it hangs. What's going on? DS9 uses XPA for interprocess communication.

In the case where your machine is configured for the internet, but you are not currently connected, XPA gets very confused. Determines the socket connection method used by this session of XPA.

The default is INET. Using the inet method will allow access from other machines subject to access controls but using local will not. Select Install from repository from the current page. Select DejaVu Repo. If you encounter "Could not connect to repository" error message, check out our troubleshooting.

Hit Install from the lower-right side to install DS9 addon. Hit OK to allow installing additional dependencies when this dialog pops up. Try installing the required dependencies respectively if you see Failed to install a dependency. Wait till you can see the message DS9 Add-on installed pops up.

That's it! For the installed addon, we advise you to disable its auto-update feature and manually update it when needed, for safety concerns. So you're suggested to follow out tutorial and give it a try. This page will keep updating, if you have further questions or better ideas on DS9 addon, feel free to reach me by clicking on my name from the top of the page, right next to my avatar.

Have a good one. The causes of no stream available and other streaming failed issue vary, most effective solutions include:. Use the option in your device settings or maintenance addons like Open Wizard to clear Kodi cache. That could be the addon stopped working, we'll put up an announcement from the top of the page, in that case, stay tuned to our updates.

In addition, working addons will also fail to launch, try the following methods to sort that. Make sure the server and port number in your Kodi Internet access match the ones of your network.

Check that especially if you're using a VPN. Learn more: Kodi Proxy Settings. Try clearing Kodi app cache in your device settings or with maintenance tools like Open Wizard, reboot Kodi, and launch the addon again.

First try clearing Kodi app cache from your device settings, reboot Kodi, and try the previous behavior again and see if this issue still occurs. If so, learn how to check log file on Kodi and draw support from someone who can read it. Please note that don't seek assistance for third-party addons from official Kodi support channels. Several Ways to Deal with Them. We suggest you to use a VPN. A VPN encrypts your traffic and stops your provider and other authorities from seeing what you do on the internet.

With a VPN provider you are also able to change your public IP address to gain access to services which are normally not available in your country.