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source: trunk/workshop-routing-foss4g/web/GeoExt/docs/_sources/lib/GeoExt/data/ScaleStore.txt @ 76

Revision 76, 1.7 KB checked in by djay, 10 years ago (diff)

Ajout du répertoire web

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2.. currentmodule:: GeoExt.data
3
4:class:`GeoExt.data.ScaleStore`
5================================================================================
6
7
8.. cssclass:: meta
9
10
11Extends
12    * `Ext.data.Store <http://dev.sencha.com/deploy/dev/docs/?class=Ext.data.Store>`_
13   
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18
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20.. class:: ScaleStore
21
22    A store that contains a cache of available zoom levels.  The store can
23    optionally be kept synchronized with an ``OpenLayers.Map`` or
24    :class:`GeoExt.MapPanel` object.
25
26    Records have the following fields:
27
28    * level - ``Number``  The zoom level.
29    * scale - ``Number`` The scale denominator.
30    * resolution - ``Number`` The map units per pixel.
31
32
33   
34
35
36Config Options
37--------------
38
39Configuration properties in addition to
40those listed for `Ext.data.Store <http://dev.sencha.com/deploy/dev/docs/?class=Ext.data.Store>`_.
41
42
43.. describe:: map
44
45    ``OpenLayers.Map`` or :class:`GeoExt.MapPanel`
46    Optional map or map panel from which to derive scale values.
47
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51
52
53Public Methods
54--------------
55
56Public methods in addition to those
57listed for `Ext.data.Store <http://dev.sencha.com/deploy/dev/docs/?class=Ext.data.Store>`_.
58
59
60.. method:: ScaleStore.bind
61
62    :param map: :class:`GeoExt.MapPanel` or ``OpenLayers.Map`` Panel or map
63        to which we should bind.
64   
65    Bind this store to a map; that is, maintain the zoom list in sync with
66    the map's current configuration.  If the map does not currently have a
67    set scale list, then the store will remain empty until the map is
68    configured with one.
69
70.. method:: ScaleStore.unbind
71
72    Un-bind this store from the map to which it is currently bound.  The
73    currently stored zoom levels will remain, but no further changes from
74    the map will affect it.
75
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