Vector geometry¶

Description¶

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Parameters¶

Input point layer [vector: point]

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Threshold (0-1, where 1 is equivalent with Convex Hull) [number]

<put parameter description here>

Default: 0.3

Allow holes [boolean]

<put parameter description here>

Default: True

Split multipart geometry into singleparts geometries [boolean]

<put parameter description here>

Default: False

Outputs¶

Concave hull [vector]

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Console usage¶

processing.runalg('qgis:concavehull', input, alpha, holes, no_multigeometry, output)

See also¶

Description¶

Converts a geometry type to another one.

Parameters¶

Input layer [vector: any]

Layer in input.

New geometry type [selection]

Type of conversion to perform.

Options:

• 0 — Centroids
• 1 — Nodes
• 2 — Linestrings
• 3 — Multilinestrings
• 4 — Polygons

Default: 0

Outputs¶

Output [vector]

The resulting layer.

Console usage¶

processing.runalg('qgis:convertgeometrytype', input, type, output)

See also¶

Description¶

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Parameters¶

Input layer [vector: any]

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Field (optional, only used if creating convex hulls by classes) [tablefield: any]

Optional.

<put parameter description here>

Method [selection]

<put parameter description here>

Options:

• 0 — Create single minimum convex hull
• 1 — Create convex hulls based on field

Default: 0

Outputs¶

Convex hull [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:convexhull', input, field, method, output)

See also¶

Description¶

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Parameters¶

lines [vector: any]

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distance [number]

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Default: 1

startpoint [number]

<put parameter description here>

Default: 0

endpoint [number]

<put parameter description here>

Default: 0

Outputs¶

output [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:createpointsalonglines', lines, distance, startpoint, endpoint, output)

See also¶

Description¶

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Parameters¶

Input layer [vector: point]

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Outputs¶

Delaunay triangulation [vector]

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Console usage¶

processing.runalg('qgis:delaunaytriangulation', input, output)

See also¶

Description¶

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Parameters¶

Input layer [vector: polygon, line]

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Interval between Vertices to add [number]

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Default: 1.0

Outputs¶

Densified layer [vector]

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Console usage¶

processing.runalg('qgis:densifygeometriesgivenaninterval', input, interval, output)

See also¶

Description¶

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Parameters¶

Input layer [vector: polygon, line]

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Vertices to add [number]

<put parameter description here>

Default: 1

Outputs¶

Densified layer [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:densifygeometries', input, vertices, output)

See also¶

Description¶

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Parameters¶

Input layer [vector: polygon, line]

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Dissolve all (do not use field) [boolean]

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Default: True

Unique ID field [tablefield: any]

Optional.

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Outputs¶

Dissolved [vector]

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Console usage¶

processing.runalg('qgis:dissolve', input, dissolve_all, field, output)

See also¶

Description¶

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Parameters¶

Input layer [vector: polygon]

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Use current selection in input layer (works only if called from toolbox) [boolean]

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Default: False

Selection attribute [tablefield: any]

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Comparison [selection]

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Options:

• 0 — ==
• 1 — !=
• 2 — >
• 3 — >=
• 4 — <
• 5 — <=
• 6 — begins with
• 7 — contains

Default: 0

Value [string]

<put parameter description here>

Default: 0

Merge selection with the neighbouring polygon with the [selection]

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Options:

• 0 — Largest area
• 1 — Smallest Area
• 2 — Largest common boundary

Default: 0

Outputs¶

Cleaned layer [vector]

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Console usage¶

processing.runalg('qgis:eliminatesliverpolygons', input, keepselection, attribute, comparison, comparisonvalue, mode, output)

See also¶

Description¶

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Parameters¶

Input layer [vector: line]

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Outputs¶

Output layer [vector]

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Console usage¶

processing.runalg('qgis:explodelines', input, output)

See also¶

Description¶

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Parameters¶

Input layer [vector: polygon, line]

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Outputs¶

Output layer [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:extractnodes', input, output)

See also¶

Description¶

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Parameters¶

Polygons [vector: any]

<put parameter description here>

Max area [number]

<put parameter description here>

Default: 100000

Outputs¶

Results [vector]

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Console usage¶

processing.runalg('qgis:fillholes', polygons, max_area, results)

See also¶

Description¶

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Parameters¶

Input layer [vector: any]

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Distance [number]

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Default: 10.0

Segments [number]

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Default: 5

Dissolve result [boolean]

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Default: False

Outputs¶

Buffer [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:fixeddistancebuffer', input, distance, segments, dissolve, output)

See also¶

Description¶

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Parameters¶

Polygons [vector: polygon]

<put parameter description here>

To keep [number]

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Default: 1

Outputs¶

Results [vector]

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Console usage¶

processing.runalg('qgis:keepnbiggestparts', polygons, to_keep, results)

See also¶

Description¶

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Parameters¶

Input layer [vector: line]

<put parameter description here>

Outputs¶

Output layer [vector]

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Console usage¶

processing.runalg('qgis:linestopolygons', input, output)

See also¶

Description¶

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Parameters¶

Input layer [vector: any]

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Outputs¶

Output layer [vector]

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Console usage¶

processing.runalg('qgis:multiparttosingleparts', input, output)

See also¶

Description¶

Moves overlapped points at small distance, that they all become visible. The result is very similar to the output of the “Point displacement” renderer but it is permanent.

Parameters¶

Input layer [vector: point]

Layer with overlapped points.

Displacement distance [number]

Desired displacement distance NOTE: displacement distance should be in same units as layer.

Default: 0.00015

Horizontal distribution for two point case [boolean]

Controls distribution direction in case of two overlapped points. If True points will be distributed horizontally, otherwise they will be distributed vertically.

Default: True

Outputs¶

Output layer [vector]

The resulting layer with shifted overlapped points.

Console usage¶

processing.runalg('qgis:pointsdisplacement', input_layer, distance, horizontal, output_layer)

See also¶

Description¶

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Parameters¶

Input layer [vector: polygon]

<put parameter description here>

Outputs¶

Output layer [vector]

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Console usage¶

processing.runalg('qgis:polygoncentroids', input_layer, output_layer)

See also¶

Description¶

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Parameters¶

Input layer [vector: line]

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Keep table structure of line layer [boolean]

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Default: False

Create geometry columns [boolean]

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Default: True

Outputs¶

Output layer [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:polygonize', input, fields, geometry, output)

See also¶

Description¶

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Parameters¶

Input layer [vector: polygon]

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Outputs¶

Output layer [vector]

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Console usage¶

processing.runalg('qgis:polygonstolines', input, output)

See also¶

Description¶

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Parameters¶

Input layer [vector: polygon, line]

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Tolerance [number]

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Default: 1.0

Outputs¶

Simplified layer [vector]

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Console usage¶

processing.runalg('qgis:simplifygeometries', input, tolerance, output)

See also¶

Description¶

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Parameters¶

Input layer [vector: any]

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Unique ID field [tablefield: any]

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Outputs¶

Output layer [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:singlepartstomultipart', input, field, output)

See also¶

Description¶

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Parameters¶

Input layer [vector: any]

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Distance field [tablefield: any]

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Segments [number]

<put parameter description here>

Default: 5

Dissolve result [boolean]

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Default: False

Outputs¶

Buffer [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:variabledistancebuffer', input, field, segments, dissolve, output)

See also¶

Description¶

<put algorithm description here>

Parameters¶

Input layer [vector: point]

<put parameter description here>

Buffer region [number]

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Default: 0.0

Outputs¶

Voronoi polygons [vector]

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Console usage¶

processing.runalg('qgis:voronoipolygons', input, buffer, output)

See also¶