# 19 August visualization meeting

**URL:** <https://www.rubin.community/t/19-august-visualization-meeting/1058>\
**Category:** Camera-DM Visualization\
**Created:** [August 19, 2016, 2:54am UTC](https://www.rubin.community/t/19-august-visualization-meeting/1058 "2016-08-19T02:54:38Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![jjt](https://sea2.discourse-cdn.com/flex002/user_avatar/www.rubin.community/jjt/32/125_2.png) [@jjt](https://www.rubin.community/u/jjt)\
**Post date:** [August 19, 2016, 2:54am UTC](https://www.rubin.community/t/19-august-visualization-meeting/1058/1 "2016-08-19T02:54:38Z")

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Bluejeans: 107541143

**Agenda:**

- Next week’s BNL meeting:
- Image server
- SW installation at BNL.
- Video meeting day/time.
- Weekly video meeting time?
- Implementation priorities. [Here](http://www.rubin.community/t/paul-oconnors-visualization-feature-wish-list/545) is Paul O’Connor’s wish list.

**Notes:**

- I was mistaken about the students’ schedules. We can continue to meet at 11 AM Central time (9 AM Pacific) in the Fall.
- No FF or SLAC attendees, so we had a local UIUC meeting.
- Here are the four items on Paul’s list that we will work on first:  
Some were implemented in prototype versions of the SW and need to be reworked.
- Gain and offset scaling by segment.
- Histograms (_e.g._, pixel distribution along a line).
- Commands driven by cursor location. We need to pass the cursor position to the terminal.
- Related to blinking:&nbsp; Image math (sum, difference, ratio) with display of result.

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**Author:** ![xiuqin](https://sea2.discourse-cdn.com/flex002/user_avatar/www.rubin.community/xiuqin/32/126_2.png) [@xiuqin](https://www.rubin.community/u/xiuqin)\
**Post date:** [August 19, 2016, 3:46am UTC](https://www.rubin.community/t/19-august-visualization-meeting/1058/2 "2016-08-19T03:46:45Z")

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Tatiana and I are at LSST all hands in Tucson and won’t attend tomorrow’s meeting.  
We can support 5pm (your time) meeting on Fridays.

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**Author:** ![tony\_johnson](https://sea2.discourse-cdn.com/flex002/user_avatar/www.rubin.community/tony_johnson/32/124_2.png) [@tony\_johnson](https://www.rubin.community/u/tony_johnson)\
**Post date:** [August 19, 2016, 2:52pm UTC](https://www.rubin.community/t/19-august-visualization-meeting/1058/3 "2016-08-19T14:52:26Z")

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I probably also will not be able to make the meeting this week. I did succeed in getting the software installed on my laptop following the instructions Stuart posted last week, A few initial questions comments:

- When I type help there is also a documentation link but it does not work. If it could at least point to a page which says “documentation coming soon” that would be good.

- I tried to load a local image using: load\_image ffview file:///home/tonyj/Data/E2V-CCD250-049\_fe55\_fe55\_001\_20151210171111.fits but I got an error file:///home/tonyj/Data/E2V-CCD250-049\_fe55\_fe55\_001\_20151210171111.fits !matched /^https?😕 Does that error come from our code of firefly? Is it possible to get it to load a local image?

- When I maximize the ffview window the Update Viewer Settings disappear. Is it possible to fix that?

Tony

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**Author:** ![marshall](https://avatars.discourse-cdn.com/v4/letter/m/58956e/32.png) [@marshall](https://www.rubin.community/u/marshall)\
**Post date:** [August 19, 2016, 3:32pm UTC](https://www.rubin.community/t/19-august-visualization-meeting/1058/4 "2016-08-19T15:32:35Z")

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On the file path just use the standard unix path w/out the file:// part. The js code matches a regex for ^http and if it doesn’t match assumes it is a local file. The real error messages are in the fftools.log file.

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**Author:** ![jjt](https://sea2.discourse-cdn.com/flex002/user_avatar/www.rubin.community/jjt/32/125_2.png) [@jjt](https://www.rubin.community/u/jjt)\
**Post date:** [August 19, 2016, 3:49pm UTC](https://www.rubin.community/t/19-august-visualization-meeting/1058/5 "2016-08-19T15:49:57Z")

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To minimize confusion, the js code should recognize file:// also.
