26 Commits

Author SHA1 Message Date
Nyall Dawson
bef8d6e072 Update expected test results 2018-10-16 16:52:00 +10:00
Nyall Dawson
308d7136b4 [processing] More fixes to convertToCompatibleFormat, lots of unit
tests

Fixes #19938
2018-09-28 14:25:38 +10:00
Nyall Dawson
737ab3069a [processing][gdal] Correctly handle geopackage paths with layername argument
Fixes #19938
2018-09-28 14:25:38 +10:00
Nyall Dawson
517b50c66d Capitalization 2018-09-25 22:01:39 +10:00
Martin Dobias
1af35b294e Moved new snapping alg as another mode of "Snap geometries" processing alg 2018-09-13 16:24:37 +02:00
Luigi Pirelli
6aa36166e4 adapted tests to new variables added in expressionContext 2018-08-28 17:06:10 +02:00
Nyall Dawson
c6a91dab09 [FEATURE] Use native interpolate point method instead of GEOS method
Because:
- Exactly follows curves and doesn't require segmentizing input geometry
- Also interpolates z/m values if they are present in input geometry
- Is faster
2018-08-15 14:01:59 +10:00
Nyall Dawson
8365335fd3 [FEATURE][processing] Interpolate point on line algorithm
This algorithm creates a point geometry interpolated at a
set distance along line (or polygon boundary) geometries.
2018-08-15 14:01:59 +10:00
Nyall Dawson
7ef5631d6b [FEATURE][processing] Line substring algorithm
This algorithm returns the portion of a line (or curve) 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.
2018-08-15 14:01:59 +10:00
Mathieu Pellerin
51b63e6b46
[vector file writer] use field type to save attribute values
(relying on attribute value type isn't reliable under certain
scenarios, including memory layers created through a processing
python algorithm)
2018-08-06 11:07:56 +07:00
Nyall Dawson
4acef1efbf [processing] Fix crash in extract by attribute when field name does not exist
Fixes #19531
2018-08-04 05:57:46 +10:00
Nyall Dawson
df05369dbf Hack is still required, but maybe using non-deprecated api will help?
Sometimes qt is great, sometimes I want to punch it in it's silly
little cute face
2018-07-31 05:12:59 +10:00
Nyall Dawson
837206892a Optimise drape algorithms, skip vertex iteration for geometries which don't intersect raster 2018-07-30 12:11:17 +10:00
Nyall Dawson
34b9d39b27 [FEATURE][processing] K Means clustering algorithm
Adds a native k-means clustering algorithm.

Based on a port of PostGIS' ST_ClusterKMeans function, this
new algorithm adds a new cluster ID field to a set of input
features identify the feature's cluster based on the k-means
clustering approach. If non-point geometries are used as input,
the clustering is based off the centroid of the input geometries.
2018-06-29 07:12:48 +10:00
Nyall Dawson
f7a6864b9c [processing] Fix invalid characters in HTML for 'Raster layer unique values' report 2018-06-01 08:53:20 +10:00
nirvn
5ab3fe4ba0 Add subsetStringChanged signal 2018-05-29 17:10:17 +07:00
Nyall Dawson
9d2c4fca19 [FEATURE][layouts] Use text renderer for drawing scalebar text
Allows the full range of formatting options exposed through
text renderer - e.g. scalebar text with buffers, shadows,
background shapes, letter spacing, etc.

Say goodbye to unreadable scale bar text!
2018-05-11 17:48:45 +10:00
nirvn
fdaa57a273 [FEATURE][processing] Zonal histogram algorithm 2018-05-03 11:36:16 +07:00
matteo
9c0a9ca466
[processing] add test for fixed algorithm 2018-04-27 09:15:37 +02:00
Nyall Dawson
0dfb3c2d8c [processing] Use distance parameter for more algorithms 2018-04-20 18:27:00 +10:00
Nyall Dawson
ee185cce4d [processing] Fix python runAlgorithm when algorithm has missing optional outputs 2018-04-10 09:57:58 +10:00
Nyall Dawson
1942854166 [processing] Port Explode Lines to c++
Aside from the performance benefits, the Python version of this
algorithm occasionally fails on Travis with odd errors. Hopefully
by porting to c++ it will fix these, or at least give useful
debug information in the event of a fail.

Also add support for curved input geometries.
2018-04-06 15:34:52 +10:00
Nyall Dawson
78a6118ba4 [processing] Fix broken Densify by Interval algorithm, add test
Fix #18640
2018-04-06 11:50:23 +10:00
Nyall Dawson
8aa9a82d28 [FEATURE][processing] Add algorithm to swap x/y coordinate values
This algorithm swaps the X and Y coordinate values in input
geometries. It can be used to repair geometries which have
accidentally had their latitude and longitude values reversed.
2018-04-05 06:35:13 +10:00
Nyall Dawson
8df954d6b8 [processing] Port Delete Holes algorithm to c++, allow dynamic
min area parameter
2018-03-12 10:41:22 +11:00
Nyall Dawson
4232b93539 [FEATURE][processing] Add "segmentize" algorithms
Adds two new algorithms which expose QgsGeometry's methods
for segmentizing curved geometries.

"Segmentize by maximum distance":
The segmentization is performed by specifying the maximum
allowed offset distance between the original curve and the
segmentized representation.

"Segmentize by maximum angle":
The segmentization is performed by specifying the maximum
allowed radius angle between vertices on the straightened
geometry (e.g the angle of the arc created from the
original arc center to consective output vertices on the
linearized geometry).
2018-03-04 21:28:42 +10:00