Details
-
Type:
extRequest
-
Status: Closed
-
Priority:
Major
-
Resolution: Done
-
Fix Version/s: 2021
-
Component/s: FIWARE-TECH-HELP
-
Labels:None
-
Sender Email:
-
HD-Chapter:Data
-
HD-Enabler:CEP
Description
Herbert Diniz sent a message using the contact form at
http://catalogue.fiware.org/.
Dear,
I'm trying use the Proton CEP, how is showed into Proton user guide,
although, not run fine when my logical rules are related at the function
"distance(x1,y1,x2,y2)"
on a expression AuthoringTool, the documentations aren't clear for me, how
could use this function? The demos projects, don't show how can I use it,
could you show a example? I'm new in the proton API. Thank you!
Best regards,
Herbert Diniz
_______________________________________________
Fiware-tech-help mailing list
Fiware-tech-help@lists.fiware.org
https://lists.fiware.org/listinfo/fiware-tech-help-new
[Created via e-mail received from: herberttb@gmail.com]
Activity
Dear Herbert,
No, we do not have support for these functions.
Best regards,
Tali
Tali Yatzkar Haham
Smart Decision Solutions
IBM Research - Haifa, Israel
tali@il.ibm.com 972-4-8296320
From: Herbertt <herberttb@gmail.com>
To: Tali Yatzkar-Haham/Haifa/IBM@IBMIL
Date: 30/09/2015 02:34 AM
Subject: Re: [FI-WARE-JIRA] (HELP-4365) [Fiware-tech-help] [Complex
Event Processing (CEP) - Proactive Technology Online] Example about proton
cep
Dear Tali,
I have other consideration about Proton Expressions. I need work with
envents that send angle of inclination in radians notation, the Proton
AuthoringTool expressions provide suppor to the functions like sine and
cosine?
Best regards,
Herbert
Sent already to the user.
The CEP has no support for sin,cos functions
Dear Herbert,
You need to provide 4 parameters, 2 for the first point and 3 for the
second.
The function calculate a geometric distance, sqrt((y2-y1)^2 + (x2-x1)^2).
To refer to attribute of an event use the following:
<EventName>.<EventAttributeName> for example attribute x of event a: a.x
So if event a has attributes x,y and event b has attributes x,y , you can
refer to the distance between those two points by writing:
distance(a.x,a.y,b.x,b.y)
Best regards,
Tali
Tali Yatzkar Haham
Smart Decision Solutions
IBM Research - Haifa, Israel
tali@il.ibm.com 972-4-8296320
From: "Manuel Escriche (JIRA)" <jira-help-desk@fi-ware.org>
To: Tali Yatzkar-Haham/Haifa/IBM@IBMIL
Date: 25/09/2015 01:04 PM
Subject: [FI-WARE-JIRA] (
HELP-4365) [Fiware-tech-help] [ComplexEvent Processing (CEP) - Proactive Technology Online] Example about proton
cep
[
https://jira.fiware.org/browse/HELP-4365?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Manuel Escriche reassigned
HELP-4365:-------------------------------------
Assignee: Tali Yatzkar Haham
Technology Online] Example about proton cep
----------------------------------------------------------------------------------------------------------
function
how
it,
–
This message was sent by Atlassian JIRA
(v6.4.1#64016)