Show Current Sun Position and Shadow of House (Generate SVG)

dexterweb · October 22, 2017, 8:14am

great widget, very usefull. I will try it asap

tailor · October 29, 2017, 2:36pm

Hi Patrick

The widget runs smoothly on one of my Ubuntu machines. Thank you very much.
On the other “identical” Ubuntu machine I receive the following error:
–> No results returned from InfluxDB History:

Log File:

2017-10-29 15:25:00.483 [INFO ] [lipse.smarthome.model.script.Shaddow] - Updating Shaddow SVG
2017-10-29 15:25:00.483 [INFO ] [lipse.smarthome.model.script.Shaddow] - Successfully got state from OpenHab: Sun_Azimuth
Successfully got state from OpenHab: Sun_Elevation
Successfully got state from OpenHab: Sunrise_Azimuth
Successfully got state from OpenHab: Sunset_Azimuth
Error getting data from InfluxDB: SELECT FIRST(*) FROM "Sun_Azimuth" where time>'2017-10-27T23:00:00Z' (HTTP Response 401)
No results returned from InfluxDB History:

This behaviour is strange beacuse data is definitely in the database. If I query influx directly I’ll receive data for this select statement:

Connected to http://localhost:8086 version 1.3.7
InfluxDB shell version: 1.3.7
> USE openhab_db
Using database openhab_db
> SELECT FIRST(*) FROM "Sun_Azimuth" where time>'2017-10-28T22:00:00Z'
name: Sun_Azimuth
time                first_value
----                -----------
1509228000015000000 327.73

Do you have any clue why I receive this error message?

bennYx0x · October 30, 2017, 10:04am

This http code stands for “Unauthorized”, thats why you didnt receive any results.

tailor · October 30, 2017, 10:33am

thank you!

Hmm, in this case the Python script is not authorized to access Influx DB? How can this be solved?

bennYx0x · October 30, 2017, 12:48pm

I am not using this stuff here, but a first look into the script: looks like it is not using authentication.

Therefore it seems like your influxdb is configured to not allow an unsecure communication. At least that is my conception.

tailor · October 30, 2017, 7:10pm

Thanks for all the help!

I initially setup Influx based on the below manual:
https://community.openhab.org/t/influxdb-grafana-persistence-and-graphing/13761

There it’s recommended to set auth-enabled = true. The script started to work immediately after setting the parameter to false.

Max1968 · November 17, 2017, 9:18am

This is really cool, I like it a lot. I want to change it to also add the position of the moon and the direction where the wind is coming from, the moon also indicating the current phase and the wind indicating the strength in beaufour. I was able to “include” svg files for sun, moon and wind residing in the same html directory which already gives the following:

(this is a testing version thus some persisted data is missing)

However I’d prefer to “include” icons from the icons directory instead, what path do i need to use for these ? Furthermore I’d like to use a different iconset (https://github.com/erikflowers/weather-icons) which is not colored. When I use these the icons show up as “black on black underground”, thus invisible. How can I change the color of these “included svg files” ?

the corresponding lines of the created shaddow.svg look like this:

<image x="0.852620357054" y="68.4735781393" width="10" height="10" xlink:href="wind.svg" /> 
<image x="59.9686933371" y="92.7067942727" width="10" height="10" xlink:href="moon.svg" /> 
<image x="67.2083062338" y="89.7972223941" width="10" height="10" xlink:href="sun.svg" />

I will upload the modified script (using the REST interface, not InfluxDB) once I have this working.

Thx, Max

Ralf · January 6, 2018, 9:59pm

Hi Patrick,

awesome. Looks great. Can you share the widget for the other views as well. Looks like you created some for the energy costs, energy consumption views as well.

Regards
Ralf

Boogieman · January 13, 2018, 6:39pm

Hmmmm, i think thats not the expecting result
shaddow

Any ideas?

Boogieman · January 14, 2018, 9:45am

Problem seems to be solved, patience was the key

But the sun position is not correct, i think its because of a wrong shape of the house. How do you create it? The basic form is correct, but it seems to be inverted. How do i align the shape correctly?

schatten

Edit: Problem solved…

Boogieman · January 15, 2018, 9:05pm

@pmpkk I have to give you a really big “Thank You” for your great theme and this script

Boogieman · January 16, 2018, 6:50pm

@Max1968

Would you be so kind to tell my how and where in the shaddow.py you inserted the icons?

sihui · January 19, 2018, 7:28pm

Needs to be Sun_Elevation

salexes · January 19, 2018, 8:20pm

I do not use hab panel yet but I want to add exactly this once I have my habpanel set up.

But in additon to that…what I currently try to do is to automate my rollershutters and I think it could be possible to realize with parts of your script.

What I wan to do is the following:
I want to automatically close the rollershutters if the sun is shining through the window.

So my question is how can I use this script to achive this? Could you lead me the right way ? I am quite new to python code and do not understand much of it.

kind regards,
salexes

sihui · January 19, 2018, 8:57pm

All you need for that task is the azimuth angle from the astro binding:

https://docs.openhab.org/addons/bindings/astro/readme.html

Ralf · January 19, 2018, 11:38pm

Eventuell hilft das:

 
var Number diffToFasade = 30  // Quasi Abweichung von Nord deiner Hausausrichtung
rule "Update Fassade"
when
  Item Sun_Height_ext changed or
  Item Sun_Azimut_ext changed
then
	logDebug("Sun","Update Fassade")
	
	var height                = Sun_Height_ext.state
 	var azimut                = Sun_Azimut_ext.state

	var eastFasadeIn   = (  90 - 90 + diffToFasade )   //For example: -26.09 or 333,91 - because 0 and 360 is north
	var eastFasadeOut  = (  90 + 90 + diffToFasade )   //153,91
	var southFasadeIn  = ( 180 - 90 + diffToFasade )   //63,91
    var southFasadeOut = ( 180 + 90 + diffToFasade )   //243,91
    var westFasadeIn   = ( 270 - 90 + diffToFasade )   //153,91
    var westFasadeOut  = ( 270 + 90 + diffToFasade )   //333,9 
    var northFasadeIn  = ( 360 - 90 + diffToFasade )   //243,91
    var northFasadeOut = ( 360 + 90 + diffToFasade )   //386,09 or 63,91 -  because 360 and 0 is north
 
    postUpdate(Sun_Fasade_Illum_East,             if (azimut > (eastFasadeIn.remainder(360)) && azimut < (eastFasadeOut.remainder(360)) && height > 18) ON else OFF)
    postUpdate(Sun_Fasade_Illum_South,            if (azimut > (southFasadeIn.remainder(360)) && azimut < (southFasadeOut.remainder(360)) && height > 18) ON else OFF)
    postUpdate(Sun_Fasade_Illum_West,             if (azimut > (westFasadeIn.remainder(360)) && azimut < (westFasadeOut.remainder(360)) && height > 18) ON else OFF)
    postUpdate(Sun_Fasade_Illum_North,            if (azimut > (northFasadeIn.remainder(360)) && azimut < (northFasadeOut.remainder(360)) && height > 18) ON else OFF)

end

Auf die Änderungen der Sun_Fassade_Illum_* wird dann jeweils in einer Regel der/die Rolläden gefahren.

sihui · January 20, 2018, 7:50am

Same here …

How did you solve it?

Boogieman · January 20, 2018, 12:21pm

I “inverted” my y-coordinate

100 - your “y” and then insert this into the shaddow.py

pmpkk · January 20, 2018, 1:09pm

Hi,

As others have said in order to manage your shutters you really just need to check the sun azimuth and elevation. I do this for my shutters and it works perfectly all year round!

Cheers,
Patrick

sihui · January 20, 2018, 1:23pm

Thx, that’s it!