USF-IMARS/grafana-erddap

ERDDAP png sizing & other graphics tweaks

Closed this issue · 3 comments

7yl4r commented

from ERDDAP docs:

for .png and .transparentPng images (not other image file types), you can also use the &.size=width|height parameter to request an image of any size.

This would allow us to use transparent images and allow for getting any size rather than the defaults.

The graphics commands section also has some useful stuff:

&.bgColor=bgColor
&.colorBar=palette|continuous|scale|min|max|nSections
&.color=value
&.draw=value
&.legend=value
&.trim=trimPixels

Specifically:

  • &.legend=Off and &.legend=Only may be the fix for #1 .
  • &.trim=trimPixels should remove the whitespace
  • the others should help with setting colors of NaN pixels, landmask, and data
7yl4r commented

Note that the custom sizing doesn't seem to work very well.

7yl4r commented

custom scaling, colorbars, limits from @dotis:

FK URLs for OC 7D images
ANOMS
nFLH anom:
http://imars-physalis.marine.usf.edu:8080/erddap/griddap/OC_f0d3_1bc2_8172.largePng?nflh_anom%5B(2018-12-30T00:00:00Z)%5D%5B(26.0):(23.50073)%5D%5B(-84.50014):(-79.5016)%5D&.draw=surface&.vars=longitude%7Clatitude%7Cnflh_anom&.colorBar=Rainbow%7C%7C%7C-0.5%7C0.5%7C&.bgColor=0xffccccff
.colorBar=Rainbow|||-0.5|0.5|

CHL anom:
http://imars-physalis.marine.usf.edu:8080/erddap/griddap/OC_f0d3_1bc2_8172.largePng?chlor_a_anom%5B(2018-12-30T00:00:00Z)%5D%5B(26.0):(23.50073)%5D%5B(-84.50014):(-79.5016)%5D&.draw=surface&.vars=longitude%7Clatitude%7Cchlor_a_anom&.colorBar=Rainbow%7C%7C%7C-2%7C2%7C&.bgColor=0xffccccff
colorBar=Rainbow|||-2|2|

Rrs_667 anom:
http://imars-physalis.marine.usf.edu:8080/erddap/griddap/OC_f0d3_1bc2_8172.largePng?Rrs_667_anom%5B(2018-12-30T00:00:00Z)%5D%5B(26.0):(23.50073)%5D%5B(-84.50014):(-79.5016)%5D&.draw=surface&.vars=longitude%7Clatitude%7CRrs_667_anom&.colorBar=Rainbow%7C%7C%7C-0.01%7C0.01%7C&.bgColor=0xffccccff
.colorBar=Rainbow|||-0.01|0.01|

MEANS/MEDIANS
nFLH median:
http://imars-physalis.marine.usf.edu:8080/erddap/griddap/OC_f0d3_1bc2_8172.largePng?nflh_median%5B(2018-12-30T00:00:00Z)%5D%5B(26.0):(23.50073)%5D%5B(-84.50014):(-79.5016)%5D&.draw=surface&.vars=longitude%7Clatitude%7Cnflh_median&.colorBar=Rainbow%7C%7C%7C0%7C1%7C&.bgColor=0xffccccff
.colorBar=Rainbow|||0|1|

CHL median (log scale):
http://imars-physalis.marine.usf.edu:8080/erddap/griddap/OC_f0d3_1bc2_8172.largePng?chlor_a_median%5B(2018-12-30T00:00:00Z)%5D%5B(26.0):(23.50073)%5D%5B(-84.50014):(-79.5016)%5D&.draw=surface&.vars=longitude%7Clatitude%7Cchlor_a_median&.colorBar=Rainbow%7C%7CLog%7C0.01%7C20%7C&.bgColor=0xffccccff
.colorBar=Rainbow||Log|0.01|20|

Rrs_667 median (log scale):
http://imars-physalis.marine.usf.edu:8080/erddap/griddap/OC_f0d3_1bc2_8172.largePng?Rrs_667_median%5B(2018-12-30T00:00:00Z)%5D%5B(26.0):(23.50073)%5D%5B(-84.50014):(-79.5016)%5D&.draw=surface&.vars=longitude%7Clatitude%7CRrs_667_median&.colorBar=Rainbow%7C%7CLog%7C0.0001%7C0.025%7C&.bgColor=0xffccccff
Rainbow||Log|0.0001|0.025|

7yl4r commented

medians aren't included right now, but this is done