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217 Commits

Author SHA1 Message Date
Matthias Kuhn
31fadd1c00
Merge pull request #7692 from m-kuhn/arrayRep 
Adjust representation of arrays and maps in expressions
 2018-08-24 15:51:14 +02:00
Matthias Kuhn
ec4483a51a Update map and array examples 2018-08-24 14:04:27 +02:00
Matthias Kuhn
51ec333199
Merge pull request #7688 from m-kuhn/array_filter 
Add array_filter expression function
 2018-08-23 15:54:21 +02:00
Matthias Kuhn
283c34ed04 Adjust array representation in help 2018-08-23 14:13:32 +02:00
Nyall Dawson
89cd7858e5 Used named parameters for with_variable function 2018-08-23 21:15:32 +10:00
Matthias Kuhn
edc272481f Add array_filter expression function 2018-08-23 07:02:41 +02:00
Etienne Trimaille
0a20621191 [FEATURE] add foreach expression for arrays 2018-08-23 12:32:32 +10:00
nirvn
3c3cc43010 [FEATURE] Add generate_series(start,stop,step) expression function 
The function creates an array containing a sequence of numbers.
 2018-08-20 11:56:49 +07:00
Nyall Dawson
a4386d6116 [FEATURE] line_substring function 
Returns the portion of a line (or curve) geometry which falls
between the specified start and end distances (measured from the
beginning of the line). Z and M values are linearly interpolated
from existing values.

Fixes #15611
 2018-08-15 14:01:59 +10:00
Mathieu Pellerin
2d964919f6
[FEATURE][expression] add raster_value() function (#7487) 2018-07-27 12:56:04 +07:00
Alessandro Pasotti
1e046a1726 Updated docs for current_value function 2018-05-15 12:45:43 +02:00
Alessandro Pasotti
63d2086de4 Rename functions from get_current_form_field_value to current_value 
and current_geometry
 2018-05-15 08:34:08 +02:00
Alessandro Pasotti
83328ae596 [feature] Form context expressions in value relation widget 
The value relation widget filter expression can now use two
new functions/variables that have access to the current
values and geometry of the form being edited.

This allows for dynamic filtering (drill-down) as explained
in the crowdfunding page:
https://north-road.com/drill-down-cascading-forms/

The new functions/variables are:

Function:
get_current_form_field_value( 'FIELD_NAME' )

Variable:
@current_form_geometry
 2018-05-15 08:34:08 +02:00
Salvatore
3660f3f63f corrections 2018-05-14 15:13:22 +02:00
Juergen E. Fischer
968b50f4f0 expression help: support optional parameters and defaults 2018-05-10 20:15:39 +02:00
Hannes
e8d1099ff3
add optional segments argument 
text taken from single_sided_buffer
 2018-05-10 16:58:12 +02:00
Nyall Dawson
6ca327072a [FEATURE] Add expression functions for tapered and variable 
width buffers

Adds:
- tapered_buffer
- buffer_by_m

expression functions. These expose the same functionality as the
equivalent processing algorithms but for use in expressions
such as geometry generators.
 2018-05-01 06:16:01 +10:00
Nyall Dawson
d5647bcbdb [FEATURE] Add wedge_buffer expression function 
Returns a wedge shaped buffer originating from a point geometry,
with arguments for azimuth, buffer width (in degrees), outer radius
and inner radius.
 2018-04-24 10:07:51 +12:00
Nyall Dawson
cae5f81ed1 Add missing expression help 2018-04-05 06:35:13 +10:00
Nyall Dawson
f02602b9bb [needs-docs] geometry smooth algorithm now also retains and smooths z/m values 
...instead of just discarding them

Applies to processing algorithm and expression function (and
QgsGeometry::smooth method)
 2018-03-30 08:59:00 +11:00
Juergen E. Fischer
158c32979b fix translation strings 2018-03-09 21:47:49 +01:00
Mathieu Pellerin
b42c893bbc
[FEATURE] color_grayscale_average() and color_mix_rgb() expression functions (#6554) 2018-03-07 11:59:52 +07:00
Loïc Bartoletti
0dcea18929 Add missing make_triangle function help. Fix #16406 2018-02-23 14:32:43 +01:00
Harrissou Sant-anna
dd039813f1 Update lpad and rpad functions description 2018-01-18 16:43:43 +10:00
Harrissou Sant-anna
cdbb0df8d7 Add example with NULL value 2018-01-03 06:57:10 +01:00
Etienne Trimaille
387057a1b8 add CRS description in the layer_property expression 2017-10-25 14:18:40 +02:00
Matthias Kuhn
a97d846471
Single parameter version of represent_value 
Becuase `represent_value("fieldname")` is much shorter to write and in 98%
there is no need to specify the name separately as
`represent_value("fieldname", 'fieldname')`.
 2017-09-29 10:58:18 +02:00
Matthias Kuhn
b527be02d7 Fix function help for represent_value 2017-09-26 14:28:44 +02:00
Matthias Kuhn
beddd25074 [FEATURE] Expression function represent_value 
This will lookup the representation value given the widget
configuration. This is helpful to get nicely formatted messages for
value maps, value relations and others in expressions.
 2017-09-26 14:28:44 +02:00
lbartoletti
6ae929e9cb initial commit 2017-09-08 08:06:21 +02:00
DiGro
b3448ed4a8 Typo corrected 
appoximation   --> should be:  approximation
 2017-09-05 15:28:40 +02:00
Nyall Dawson
0a9e9944b4 [FEATURE] Expression function for hausdorff distance 
Allows calculation of the Hausdorff distance between two
geometries
 2017-08-31 08:02:44 +10:00
arnaud.morvan@camptocamp.com
e34a593c65 [FEATURE] Add expression function array_agg 2017-08-12 10:18:21 +02:00
Andreas Neumann
267286ee61 Correct an error in array_slice function description 
There was a copy/paste error in the "name"
 2017-08-09 16:34:20 +02:00
Nyall Dawson
4ab4a1fcad Spell check 'mitre' -> 'miter' (i.e. use en-us variation) 2017-08-07 18:08:57 +10:00
andreasneumann
42d7e0b898 renamed parameter names of array_slice, ran prepare-commit.sh 2017-08-06 19:11:32 +02:00
andreasneumann
89784691b1 [FEATURE] array_slice expression function 2017-08-06 19:11:32 +02:00
Andreas Neumann
303f9b7cdd [FEATURE] expression function array_reverse 2017-08-05 22:45:11 +02:00
Andreas Neumann
c3ae3bfc74 Added new help files to the expression function groups of Arrays and Maps 2017-08-04 20:30:37 +02:00
Andreas Neumann
c2138ca4bd Correct help of expression array_remove_all 2017-08-04 16:25:23 +02:00
lbartoletti
d88a7f4198 add missing help for inclination 2017-08-01 21:48:03 +02:00
Nyall Dawson
878ee5c067 Add items for project map layers and relations to expression builder 
Allows easy insertion of map layer IDs and relation IDs into
expressions. Numerous expression functions now utilise these,
so it makes sense to allow them to be easily inserted.

Fix #11680, #16879

Sponsored by Andreas Neumann
 2017-07-31 08:08:18 +10:00
Matthias Kuhn
875a5d6d9d Merge pull request #4818 from DelazJ/spelling 
Fix some spelling issues
 2017-07-08 10:20:40 +02:00
Matthias Kuhn
066528de4f get_feature_by_id docs 2017-07-07 13:01:17 +02:00
Matthias Kuhn
f379be2033 array docs 2017-07-07 13:01:17 +02:00
Matthias Kuhn
10dc0d5da9 Rename set_variable to with_variable 2017-07-07 13:00:47 +02:00
Harrissou Sant-anna
15be88918f Replace "double click" and "doubleclick" by double-click 2017-07-07 01:26:38 +02:00
Nyall Dawson
39d20a4cb4 Move algorithm expression context generation to QgsProcessingAlgorithm 
Fix error when selecting "from expression" in algorithm parameter dialog
 2017-06-06 11:25:09 +10:00
nirvn
3419945a8d [FEATURE] create_ramp() expression function 2017-05-29 16:31:53 +07:00
lbartoletti
13c1318a5f New geometry class: QgsRegularPolygon (#4502) 2017-05-10 22:23:28 +10:00