retrieving a sample point as default value of coordinate attribute

I try to retrieving a sample point as default value of coordinate attribute.I used the demo sample points.

alt text

my retrieving expression in IDM Expression Language is idm:samplingPointCoordinate(01,01).

alt text

The coordinate system is also EPSG:4326 for my Survey.

in the preview I got empty form without default values.

alt text

my collect version is 3.8.19.

let me know if I miss any detail Thanks,

mehrdad

collect

asked 20 Nov '15, 15:37

mehrdad
16●2●4
accept rate: 0%

One Answer:

active answers oldest answers newest answers popular answers

Hi,
the expression is "almost" correct... the only thing to change is that the parameters must be text values, like this:
idm:samplingPointCoordinate('01','01')
In this way the retrieved coordinate will always be the one corresponding to level_1='01' and level_2='01', is it the behaviour you are expecting? It will be more useful to have a dynamic lookup of that coordinate, specifying a path to an attribute instead of a constant value.
Many thanks,
Open Foris Team

permanent link

answered 20 Nov '15, 18:25

Stefano (OF) ♦♦
4.9k●1●1●9
accept rate: 19%

now its work..! :) you right,that way is much more flexible. Now for a test I change it to idm:samplingPointCoordinate(concat('0',idm:position())) and work perfectly. Thanks.

(20 Nov '15, 18:51) mehrdad

Your answer

toggle preview

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here

By RSS:

Answers

Answers and Comments

Markdown Basics

*italic* or _italic_
**bold** or __bold__
link:[text](http://url.com/ "title")
image?![alt text](/path/img.jpg "title")
numbered list: 1. Foo 2. Bar
to add a line break simply add two spaces to where you would like the new line to be.
basic HTML tags are also supported

learn more about Markdown

Question tags:

collect ×494

question asked: 20 Nov '15, 15:37

question was seen: 3,747 times

last updated: 20 Nov '15, 18:51

retrieving a sample point as default value of coordinate attribute

Follow this question

Related questions