Gradient Graphs for Cacti

kinghaye · **Joined:** Mon Jan 04, 2016 9:15 pm **Posts:** 5

Greetings everyone am new to this Cacti software so forgive me for asking dumb question but when i log in through SSH and browse to nano /path/to/cacti/lib/rrd.php the file is blank. should i just add the code or the graph template ?

kinghaye · **Joined:** Mon Jan 04, 2016 9:15 pm **Posts:** 5

How can download and install the rrd.php file in the correct directory since mine is blank.

kinghaye · **Joined:** Mon Jan 04, 2016 9:15 pm **Posts:** 5

found the location of the file however when i apply the code all my graphs are gone. any idea what might cause that?
/usr/share/cacti/site/lib

phalek · **Posted:** Fri Jan 08, 2016 4:54 am

What Cacti version are you using ?

kinghaye · **Joined:** Mon Jan 04, 2016 9:15 pm **Posts:** 5

Cacti Version 0.8.8b

nsait · **Joined:** Tue Nov 22, 2016 6:27 am **Posts:** 1

Hello
How to make that color grading was only in the area, and did not fill line?

Osiris · **Joined:** Mon Jan 05, 2015 10:10 am **Posts:** 753

Someone should do a pull request against the Github release for this.

ericgarnel · **Joined:** Tue Feb 19, 2013 3:44 pm **Posts:** 6

I just backed up the original rrd.php and dropped this in place. All my graphs look sexy now! Nice add on

pianograndpulp · **Posted:** Thu Oct 12, 2017 12:44 am

Dragging this back to the top to see if this might be updated to work with the new 1.x version?

Very cool...

phalek · **Posted:** Thu Oct 12, 2017 1:18 am

Updated for Cacti 1.x.x : https://www.urban-software.com/2015/06/ ... ti-graphs/

Also created a pull request: https://github.com/Cacti/cacti/pull/1029

pianograndpulp · **Posted:** Fri Oct 13, 2017 2:15 am

Thank you!! Love it!! Did forget about the fact that transparency goes away - but I'll adjust my graphs to make those work. Thank you so much!!

phalek wrote:

Updated for Cacti 1.x.x : https://www.urban-software.com/2015/06/19/gradient-support-for-cacti-graphs/

Also created a pull request: https://github.com/Cacti/cacti/pull/1029

phalek · **Posted:** Fri Oct 13, 2017 3:13 am

You can change this line:

Code:

// We don't use alpha blending for the area right now
$alpha = 'ff';

to this, to get transparency working ( it may look ugly though ... ? there was a reason why i disabled this ... )

Code:

// We don't use alpha blending for the area right now
//$alpha = 'ff';

pianograndpulp · **Posted:** Fri Oct 13, 2017 10:28 am

Was also just checking out an odd behavior with the autoscaling of using the Area graph item type. With the gradient applied, the "auto scale options" don't seem to be working.

Using Area:

Attachment:

File comment: Using Area

cacti_1401 (1).png [ 26.99 KiB | Viewed 839 times ]

Using Lines:

Attachment:

File comment: Using Lines

cacti_1401 (2).png [ 27.15 KiB | Viewed 839 times ]

Using Area (without gradient patch)

Attachment:

File comment: Without Gadient

cacti_1401 (3).png [ 29.3 KiB | Viewed 839 times ]

Just curious if it's a bug or just the nature of getting the gradients to work...

Thanks!

_dave

pianograndpulp · **Posted:** Fri Oct 13, 2017 10:34 am

Ha! Yeah - now I can see what transparency isn't a real good option here... At least with the type of graph I'm using... Even with everything at 10% it's still very hard to see...

Attachment:

File comment: Transparency

cacti_1401 (4).png [ 33.74 KiB | Viewed 839 times ]

Thanks for the details though - still may be able to design the graph in a way to make it work!!

_dave

phalek wrote:

You can change this line:

Code:

// We don't use alpha blending for the area right now
$alpha = 'ff';

to this, to get transparency working ( it may look ugly though ... ? there was a reason why i disabled this ... )

Code:

// We don't use alpha blending for the area right now
//$alpha = 'ff';

Gradient Graphs for Cacti

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