:tocdepth: 3

:py:mod:`gws.gis.source`
========================

.. py:module:: gws.gis.source


**Source code:** :source:`gws.gis.source<gws/gis/source/__init__.py>`



Package Contents
----------------



.. py:function:: check_layers(layers: Iterable[gws.SourceLayer], revert: bool = False) -> list[gws.SourceLayer]

   Insert our properties in the source layer tree.

   Also remove empty layers.

   :param layers: List of source layers
   :param revert: Revert the order of layers and sub-layers.


.. py:function:: combined_bounds(layers: list[gws.SourceLayer], crs: gws.Crs) -> Optional[gws.Bounds]

.. py:function:: combined_crs_list(layers: list[gws.SourceLayer]) -> list[gws.Crs]

   Return an intersection of crs supported by each source layer.


.. py:function:: filter_layers(layers: list[gws.SourceLayer], slf: LayerFilter = None, is_group: bool = None, is_image: bool = None, is_queryable: bool = None, is_visible: bool = None) -> list[gws.SourceLayer]

   Filter source layers by the given layer filter.


.. py:function:: layer_matches(sl: gws.SourceLayer, f: LayerFilter) -> bool

   Check if a source layer matches the filter


.. py:class:: LayerFilter(*args, **kwargs)


   Bases: :py:obj:`gws.Data`

   Source layer filter

   .. py:attribute:: isGroup
      :type:  Optional[bool]

      If true, match only group layers.

   .. py:attribute:: isImage
      :type:  Optional[bool]

      If true, match only images layers.

   .. py:attribute:: isQueryable
      :type:  Optional[bool]

      If true, match only queryable layers.

   .. py:attribute:: isVisible
      :type:  Optional[bool]

      If true, match only visible layers.

   .. py:attribute:: level
      :type:  int
      :value: 0


      Match only layers at this level.

   .. py:attribute:: names
      :type:  Optional[list[str]]

      Match these layer names (top-to-bottom order).

   .. py:attribute:: pattern
      :type:  gws.Regex
      :value: ''


      Match layers whose full path matches a pattern.

   .. py:attribute:: titles
      :type:  Optional[list[str]]

      Match these layer titles.