Vector selection¶

Description¶

<put algorithm description here>

Parameters¶

Input Layer [vector: any]

<put parameter description here>

Selection attribute [tablefield: any]

<put parameter description here>

Operator [selection]

<put parameter description here>

Options:

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

Default: 0

Value [string]

<put parameter description here>

Default: (not set)

Outputs¶

Output [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:extractbyattribute', input, field, operator, value, output)

See also¶

Description¶

<put algorithm description here>

Parameters¶

Layer to select from [vector: any]

<put parameter description here>

Additional layer (intersection layer) [vector: any]

<put parameter description here>

Include input features that touch the selection features [boolean]

<put parameter description here>

Default: False

Include input features that overlap/cross the selection features [boolean]

<put parameter description here>

Default: False

Include input features completely within the selection features [boolean]

<put parameter description here>

Default: False

Outputs¶

Selection [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:extractbylocation', input, intersect, touches, overlaps, within, output)

See also¶

Description¶

<put algorithm description here>

Parameters¶

Input layer [vector: any]

<put parameter description here>

Method [selection]

<put parameter description here>

Options:

• 0 — Number of selected features
• 1 — Percentage of selected features

Default: 0

Number/percentage of selected features [number]

<put parameter description here>

Default: 10

Outputs¶

Selection [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:randomextract', input, method, number, output)

See also¶

Description¶

<put algorithm description here>

Parameters¶

Input layer [vector: any]

<put parameter description here>

ID Field [tablefield: any]

<put parameter description here>

Method [selection]

<put parameter description here>

Options:

• 0 — Number of selected features
• 1 — Percentage of selected features

Default: 0

Number/percentage of selected features [number]

<put parameter description here>

Default: 10

Outputs¶

Selection [vector]

<put output description here>

Console usage¶

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

See also¶

Description¶

<put algorithm description here>

Parameters¶

Input layer [vector: any]

<put parameter description here>

Method [selection]

<put parameter description here>

Options:

• 0 — Number of selected features
• 1 — Percentage of selected features

Default: 0

Number/percentage of selected features [number]

<put parameter description here>

Default: 10

Outputs¶

Selection [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:randomselection', input, method, number)

See also¶

Description¶

<put algorithm description here>

Parameters¶

Input layer [vector: any]

<put parameter description here>

ID Field [tablefield: any]

<put parameter description here>

Method [selection]

<put parameter description here>

Options:

• 0 — Number of selected features
• 1 — Percentage of selected features

Default: 0

Number/percentage of selected features [number]

<put parameter description here>

Default: 10

Outputs¶

Selection [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:randomselectionwithinsubsets', input, field, method, number)

See also¶

Description¶

Selects and saves as new layer all features from input layer that satisfy condition.

NOTE: algorithm is case-sensitive (“qgis” is different from “Qgis” and “QGIS”)

Parameters¶

Input Layer [vector: any]

Layer to process.

Selection attribute [tablefield: any]

Field on which perform the selection.

Operator [selection]

Comparison operator.

Options:

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

Default: 0

Value [string]

Value to compare.

Default: (not set)

Outputs¶

Output [vector]

The resulting layer.

Console usage¶

processing.runalg('qgis:selectbyattribute', input, field, operator, value, output)

See also¶

Description¶

<put algorithm description here>

Parameters¶

Input Layer [vector: any]

<put parameter description here>

Expression [string]

<put parameter description here>

Default: (not set)

Modify current selection by [selection]

<put parameter description here>

Options:

• 0 — creating new selection
• 1 — adding to current selection
• 2 — removing from current selection

Default: 0

Outputs¶

Output [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:selectbyexpression', layername, expression, method)

See also¶

Description¶

<put algorithm description here>

Parameters¶

Layer to select from [vector: any]

<put parameter description here>

Additional layer (intersection layer) [vector: any]

<put parameter description here>

Include input features that touch the selection features [boolean]

<put parameter description here>

Default: False

Include input features that overlap/cross the selection features [boolean]

<put parameter description here>

Default: False

Include input features completely within the selection features [boolean]

<put parameter description here>

Default: False

Modify current selection by [selection]

<put parameter description here>

Options:

• 0 — creating new selection
• 1 — adding to current selection
• 2 — removing from current selection

Default: 0

Outputs¶

Selection [vector]

<put output description here>

Console usage¶

processing.runalg('qgis:selectbylocation', input, intersect, touches, overlaps, within, method)

See also¶