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<a href="mapnik-module.html">Package&nbsp;mapnik</a> ::
<a href="mapnik._mapnik-module.html" onclick="show_private();">Module&nbsp;_mapnik</a> ::
Class&nbsp;Map
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<!-- ==================== CLASS DESCRIPTION ==================== -->
<h1 class="epydoc">Class Map</h1><p class="nomargin-top"></p>
<pre class="base-tree">
object --+
|
??.instance --+
|
<strong class="uidshort">Map</strong>
</pre>
<hr />
<p>The map object.</p>
<!-- ==================== INSTANCE METHODS ==================== -->
<a name="section-InstanceMethods"></a>
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<span class="table-header">Instance Methods</span></td>
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<span class="summary-type">&nbsp;</span>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#__getinitargs__" class="summary-sig-name">__getinitargs__</a>(<span class="summary-sig-arg">...</span>)</span><br />
__getinitargs__( (Map)arg1) -&gt; tuple :</td>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#__getstate__" class="summary-sig-name">__getstate__</a>(<span class="summary-sig-arg">...</span>)</span><br />
__getstate__( (Map)arg1) -&gt; tuple :</td>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#__init__" class="summary-sig-name">__init__</a>(<span class="summary-sig-arg">...</span>)</span><br />
__init__( (object)arg1, (int)width, (int)height [, (str)srs]) -&gt; None :
Create a Map with a width and height as integers and, optionally,
an srs string either with a Proj.4 epsg code ('+init=epsg:&lt;code&gt;')
or with a Proj.4 literal ('+proj=&lt;literal&gt;').</td>
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<span class="summary-type">&nbsp;</span>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#__reduce__" class="summary-sig-name">__reduce__</a>(<span class="summary-sig-arg">...</span>)</span><br />
helper for pickle</td>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#__setstate__" class="summary-sig-name">__setstate__</a>(<span class="summary-sig-arg">...</span>)</span><br />
__setstate__( (Map)arg1, (tuple)arg2) -&gt; None :</td>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#append_style" class="summary-sig-name">append_style</a>(<span class="summary-sig-arg">...</span>)</span><br />
append_style( (Map)arg1, (str)arg2, (Style)arg3) -&gt; bool :
Insert a Mapnik Style onto the map by appending it.</td>
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<span class="summary-type">&nbsp;</span>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#buffered_envelope" class="summary-sig-name">buffered_envelope</a>(<span class="summary-sig-arg">...</span>)</span><br />
buffered_envelope( (Map)arg1) -&gt; Envelope :
Get the Envelope() of the Map given
the Map.buffer_size.</td>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#envelope" class="summary-sig-name">envelope</a>(<span class="summary-sig-arg">...</span>)</span><br />
envelope( (Map)arg1) -&gt; Envelope :
Return the Map Envelope object
and print the string representation
of the current extent of the map.</td>
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<span class="summary-type">&nbsp;</span>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#find_style" class="summary-sig-name">find_style</a>(<span class="summary-sig-arg">...</span>)</span><br />
find_style( (Map)arg1, (str)arg2) -&gt; Style :
Query the Map for a style by name and return
a style object if found or raise KeyError
style if not found.</td>
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</td>
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<span class="summary-type">&nbsp;</span>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#get_aspect_fix_mode" class="summary-sig-name">get_aspect_fix_mode</a>(<span class="summary-sig-arg">...</span>)</span><br />
get_aspect_fix_mode( (Map)arg1) -&gt; aspect_fix_mode :
Get aspect fix mode.</td>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#pan" class="summary-sig-name">pan</a>(<span class="summary-sig-arg">...</span>)</span><br />
pan( (Map)arg1, (int)arg2, (int)arg3) -&gt; None :
Set the Map center at a given x,y location
as integers in the coordinates of the pixmap or map surface.</td>
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<span class="summary-type">&nbsp;</span>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#pan_and_zoom" class="summary-sig-name">pan_and_zoom</a>(<span class="summary-sig-arg">...</span>)</span><br />
pan_and_zoom( (Map)arg1, (int)arg2, (int)arg3, (float)arg4) -&gt; None :
Set the Map center at a given x,y location
and zoom factor as a float.</td>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#query_map_point" class="summary-sig-name">query_map_point</a>(<span class="summary-sig-arg">...</span>)</span><br />
query_map_point( (Map)arg1, (int)arg2, (float)arg3, (float)arg4) -&gt; Featureset :
Query a Map Layer (by layer index) for features
intersecting the given x,y location in the coordinates
of the pixmap or map surface.</td>
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<span class="summary-type">&nbsp;</span>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#query_point" class="summary-sig-name">query_point</a>(<span class="summary-sig-arg">...</span>)</span><br />
query_point( (Map)arg1, (int)arg2, (float)arg3, (float)arg4) -&gt; Featureset :
Query a Map Layer (by layer index) for features
intersecting the given x,y location in the coordinates
of map projection.</td>
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</td>
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<span class="summary-type">&nbsp;</span>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#remove_all" class="summary-sig-name">remove_all</a>(<span class="summary-sig-arg">...</span>)</span><br />
remove_all( (Map)arg1) -&gt; None :
Remove all Mapnik Styles and Layers from the Map.</td>
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<span class="summary-type">&nbsp;</span>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#remove_style" class="summary-sig-name">remove_style</a>(<span class="summary-sig-arg">...</span>)</span><br />
remove_style( (Map)arg1, (str)arg2) -&gt; None :
Remove a Mapnik Style from the map.</td>
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</td>
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<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type">&nbsp;</span>
</td><td class="summary">
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#resize" class="summary-sig-name">resize</a>(<span class="summary-sig-arg">...</span>)</span><br />
resize( (Map)arg1, (int)arg2, (int)arg3) -&gt; None :
Resize a Mapnik Map.</td>
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</td>
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<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type">&nbsp;</span>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#scale" class="summary-sig-name">scale</a>(<span class="summary-sig-arg">...</span>)</span><br />
scale( (Map)arg1) -&gt; float :
Return the Map Scale.</td>
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<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type">&nbsp;</span>
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#scale_denominator" class="summary-sig-name">scale_denominator</a>(<span class="summary-sig-arg">...</span>)</span><br />
scale_denominator( (Map)arg1) -&gt; float :
Return the Map Scale Denominator.</td>
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<span class="summary-type">&nbsp;</span>
</td><td class="summary">
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#view_transform" class="summary-sig-name">view_transform</a>(<span class="summary-sig-arg">...</span>)</span><br />
view_transform( (Map)arg1) -&gt; ViewTransform :
Map CoordinateTransform object.</td>
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<span class="summary-type">&nbsp;</span>
</td><td class="summary">
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#zoom" class="summary-sig-name">zoom</a>(<span class="summary-sig-arg">...</span>)</span><br />
zoom( (Map)arg1, (float)arg2) -&gt; None :
Zoom in by a given factor.</td>
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</td>
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</td>
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<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type">&nbsp;</span>
</td><td class="summary">
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#zoom_all" class="summary-sig-name">zoom_all</a>(<span class="summary-sig-arg">...</span>)</span><br />
zoom_all( (Map)arg1) -&gt; None :
Set the geographical extent of the map
to the combined extents of all active layers.</td>
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</td>
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</td>
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<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type">&nbsp;</span>
</td><td class="summary">
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<td><span class="summary-sig"><a href="mapnik._mapnik.Map-class.html#zoom_to_box" class="summary-sig-name">zoom_to_box</a>(<span class="summary-sig-arg">...</span>)</span><br />
zoom_to_box( (Map)arg1, (Envelope)arg2) -&gt; None :
Set the geographical extent of the map
by specifying a Mapnik Envelope.</td>
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</td>
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<td colspan="2" class="summary">
<p class="indent-wrapped-lines"><b>Inherited from <code><i>unreachable</i>.instance</code></b>:
<code>__new__</code>
</p>
<p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
<code>__delattr__</code>,
<code>__getattribute__</code>,
<code>__hash__</code>,
<code>__reduce_ex__</code>,
<code>__repr__</code>,
<code>__setattr__</code>,
<code>__str__</code>
</p>
</td>
</tr>
</table>
<!-- ==================== CLASS VARIABLES ==================== -->
<a name="section-ClassVariables"></a>
<table class="summary" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="table-header">
<td align="left" colspan="2" class="table-header">
<span class="table-header">Class Variables</span></td>
</tr>
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<span class="summary-type">&nbsp;</span>
</td><td class="summary">
<a name="__instance_size__"></a><span class="summary-name">__instance_size__</span> = <code title="128">128</code>
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type">&nbsp;</span>
</td><td class="summary">
<a name="__safe_for_unpickling__"></a><span class="summary-name">__safe_for_unpickling__</span> = <code title="True">True</code>
</td>
</tr>
</table>
<!-- ==================== PROPERTIES ==================== -->
<a name="section-Properties"></a>
<table class="summary" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="table-header">
<td align="left" colspan="2" class="table-header">
<span class="table-header">Properties</span></td>
</tr>
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<span class="summary-type">&nbsp;</span>
</td><td class="summary">
<a href="mapnik._mapnik.Map-class.html#aspect_fix_mode" class="summary-name">aspect_fix_mode</a><br />
Get/Set aspect fix mode.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type">&nbsp;</span>
</td><td class="summary">
<a href="mapnik._mapnik.Map-class.html#background" class="summary-name">background</a><br />
The background color of the map.
</td>
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<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type">&nbsp;</span>
</td><td class="summary">
<a href="mapnik._mapnik.Map-class.html#buffer_size" class="summary-name">buffer_size</a><br />
Get/Set the size of buffer around map in pixels.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type">&nbsp;</span>
</td><td class="summary">
<a href="mapnik._mapnik.Map-class.html#height" class="summary-name">height</a><br />
Get/Set the height of the map in pixels.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type">&nbsp;</span>
</td><td class="summary">
<a href="mapnik._mapnik.Map-class.html#layers" class="summary-name">layers</a><br />
The list of map layers.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type">&nbsp;</span>
</td><td class="summary">
<a href="mapnik._mapnik.Map-class.html#srs" class="summary-name">srs</a><br />
Spatial reference in Proj.4 format.
</td>
</tr>
<tr>
<td width="15%" align="right" valign="top" class="summary">
<span class="summary-type">&nbsp;</span>
</td><td class="summary">
<a href="mapnik._mapnik.Map-class.html#width" class="summary-name">width</a><br />
Get/Set the width of the map in pixels.
</td>
</tr>
<tr>
<td colspan="2" class="summary">
<p class="indent-wrapped-lines"><b>Inherited from <code>object</code></b>:
<code>__class__</code>
</p>
</td>
</tr>
</table>
<!-- ==================== METHOD DETAILS ==================== -->
<a name="section-MethodDetails"></a>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="table-header">
<td align="left" colspan="2" class="table-header">
<span class="table-header">Method Details</span></td>
</tr>
</table>
<a name="__getinitargs__"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
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<h3 class="epydoc"><span class="sig"><span class="sig-name">__getinitargs__</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
__getinitargs__( (Map)arg1) -&gt; tuple :
C++ signature :
boost::python::tuple __getinitargs__(mapnik::Map)
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="__getstate__"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">__getstate__</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
__getstate__( (Map)arg1) -&gt; tuple :
C++ signature :
boost::python::tuple __getstate__(mapnik::Map)
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="__init__"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">__init__</span>(<span class="sig-arg">...</span>)</span>
<br /><em class="fname">(Constructor)</em>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
__init__( (object)arg1, (int)width, (int)height [, (str)srs]) -&gt; None :
Create a Map with a width and height as integers and, optionally,
an srs string either with a Proj.4 epsg code ('+init=epsg:&lt;code&gt;')
or with a Proj.4 literal ('+proj=&lt;literal&gt;').
If no srs is specified the map will default to '+proj=latlong +datum=WGS84'
Usage:
&gt;&gt;&gt; from mapnik import Map
&gt;&gt;&gt; m = Map(600,400)
&gt;&gt;&gt; m
&lt;mapnik._mapnik.Map object at 0x6a240&gt;
&gt;&gt;&gt; m.srs
'+proj=latlong +datum=WGS84'
C++ signature :
void __init__(_object*,int,int [,std::string])
</pre>
<dl class="fields">
<dt>Overrides:
object.__init__
</dt>
</dl>
</td></tr></table>
</div>
<a name="__reduce__"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">__reduce__</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<p>helper for pickle</p>
<dl class="fields">
<dt>Overrides:
object.__reduce__
<dd><em class="note">(inherited documentation)</em></dd>
</dt>
</dl>
</td></tr></table>
</div>
<a name="__setstate__"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">__setstate__</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
__setstate__( (Map)arg1, (tuple)arg2) -&gt; None :
C++ signature :
void __setstate__(mapnik::Map {lvalue},boost::python::tuple)
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="append_style"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">append_style</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
append_style( (Map)arg1, (str)arg2, (Style)arg3) -&gt; bool :
Insert a Mapnik Style onto the map by appending it.
Usage:
&gt;&gt;&gt; sty
&lt;mapnik._mapnik.Style object at 0x6a330&gt;
&gt;&gt;&gt; m.append_style('Style Name', sty)
True # style object added to map by name
&gt;&gt;&gt; m.append_style('Style Name', sty)
False # you can only append styles with unique names
C++ signature :
bool append_style(mapnik::Map {lvalue},std::string,mapnik::feature_type_style)
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="buffered_envelope"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">buffered_envelope</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
buffered_envelope( (Map)arg1) -&gt; Envelope :
Get the Envelope() of the Map given
the Map.buffer_size.
Usage:
&gt;&gt;&gt; m = Map(600,400)
&gt;&gt;&gt; m.envelope()
Envelope(-1.0,-1.0,0.0,0.0)
&gt;&gt;&gt; m.buffered_envelope()
Envelope(-1.0,-1.0,0.0,0.0)
&gt;&gt;&gt; m.buffer_size = 1
&gt;&gt;&gt; m.buffered_envelope()
Envelope(-1.02222222222,-1.02222222222,0.0222222222222,0.0222222222222)
C++ signature :
mapnik::Envelope&lt;double&gt; buffered_envelope(mapnik::Map {lvalue})
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="envelope"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">envelope</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
envelope( (Map)arg1) -&gt; Envelope :
Return the Map Envelope object
and print the string representation
of the current extent of the map.
Usage:
&gt;&gt;&gt; m.envelope()
Envelope(-0.185833333333,-0.96,0.189166666667,-0.71)
&gt;&gt;&gt; dir(m.envelope())
...'center', 'contains', 'expand_to_include', 'forward',
...'height', 'intersect', 'intersects', 'inverse', 'maxx',
...'maxy', 'minx', 'miny', 'width'
C++ signature :
mapnik::Envelope&lt;double&gt; envelope(mapnik::Map {lvalue})
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="find_style"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">find_style</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
find_style( (Map)arg1, (str)arg2) -&gt; Style :
Query the Map for a style by name and return
a style object if found or raise KeyError
style if not found.
Usage:
&gt;&gt;&gt; m.find_style('Style Name')
&lt;mapnik._mapnik.Style object at 0x654f0&gt;
C++ signature :
mapnik::feature_type_style find_style(mapnik::Map,std::string)
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="get_aspect_fix_mode"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">get_aspect_fix_mode</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
get_aspect_fix_mode( (Map)arg1) -&gt; aspect_fix_mode :
Get aspect fix mode.
Usage:
&gt;&gt;&gt; m.get_aspect_fix_mode()
C++ signature :
mapnik::Map::aspect_fix_mode get_aspect_fix_mode(mapnik::Map {lvalue})
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="pan"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">pan</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
pan( (Map)arg1, (int)arg2, (int)arg3) -&gt; None :
Set the Map center at a given x,y location
as integers in the coordinates of the pixmap or map surface.
Usage:
&gt;&gt;&gt; m = Map(600,400)
&gt;&gt;&gt; m.envelope().center()
Coord(-0.5,-0.5) # default Map center
&gt;&gt;&gt; m.pan(-1,-1)
&gt;&gt;&gt; m.envelope().center()
Coord(0.00166666666667,-0.835)
C++ signature :
void pan(mapnik::Map {lvalue},int,int)
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="pan_and_zoom"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">pan_and_zoom</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
pan_and_zoom( (Map)arg1, (int)arg2, (int)arg3, (float)arg4) -&gt; None :
Set the Map center at a given x,y location
and zoom factor as a float.
Usage:
&gt;&gt;&gt; m = Map(600,400)
&gt;&gt;&gt; m.envelope().center()
Coord(-0.5,-0.5) # default Map center
&gt;&gt;&gt; m.scale()
-0.0016666666666666668
&gt;&gt;&gt; m.pan_and_zoom(-1,-1,0.25)
&gt;&gt;&gt; m.scale()
0.00062500000000000001
C++ signature :
void pan_and_zoom(mapnik::Map {lvalue},int,int,double)
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="query_map_point"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">query_map_point</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
query_map_point( (Map)arg1, (int)arg2, (float)arg3, (float)arg4) -&gt; Featureset :
Query a Map Layer (by layer index) for features
intersecting the given x,y location in the coordinates
of the pixmap or map surface.
Will return a Mapnik Featureset if successful
otherwise will return None.
Usage:
&gt;&gt;&gt; featureset = m.query_map_point(0,200,200)
&gt;&gt;&gt; featureset
&lt;mapnik._mapnik.Featureset object at 0x23b0b0&gt;
&gt;&gt;&gt; featureset.features
&gt;&gt;&gt; [&lt;mapnik.Feature object at 0x3995630&gt;]
C++ signature :
boost::shared_ptr&lt;mapnik::Featureset&gt; query_map_point(mapnik::Map {lvalue},unsigned int,double,double)
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="query_point"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">query_point</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
query_point( (Map)arg1, (int)arg2, (float)arg3, (float)arg4) -&gt; Featureset :
Query a Map Layer (by layer index) for features
intersecting the given x,y location in the coordinates
of map projection.
Will return a Mapnik Featureset if successful
otherwise will return None.
Usage:
&gt;&gt;&gt; featureset = m.query_point(0,-122,48)
&gt;&gt;&gt; featureset
&lt;mapnik._mapnik.Featureset object at 0x23b0b0&gt;
&gt;&gt;&gt; featureset.features
&gt;&gt;&gt; [&lt;mapnik.Feature object at 0x3995630&gt;]
C++ signature :
boost::shared_ptr&lt;mapnik::Featureset&gt; query_point(mapnik::Map {lvalue},unsigned int,double,double)
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="remove_all"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">remove_all</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
remove_all( (Map)arg1) -&gt; None :
Remove all Mapnik Styles and Layers from the Map.
Usage:
&gt;&gt;&gt; m.remove_all()
C++ signature :
void remove_all(mapnik::Map {lvalue})
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="remove_style"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">remove_style</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
remove_style( (Map)arg1, (str)arg2) -&gt; None :
Remove a Mapnik Style from the map.
Usage:
&gt;&gt;&gt; m.remove_style('Style Name')
C++ signature :
void remove_style(mapnik::Map {lvalue},std::string)
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="resize"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">resize</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
resize( (Map)arg1, (int)arg2, (int)arg3) -&gt; None :
Resize a Mapnik Map.
Usage:
&gt;&gt;&gt; m.resize(64,64)
C++ signature :
void resize(mapnik::Map {lvalue},unsigned int,unsigned int)
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="scale"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">scale</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
scale( (Map)arg1) -&gt; float :
Return the Map Scale.
Usage:
&gt;&gt;&gt; m.scale()
C++ signature :
double scale(mapnik::Map {lvalue})
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="scale_denominator"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">scale_denominator</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
scale_denominator( (Map)arg1) -&gt; float :
Return the Map Scale Denominator.
Usage:
&gt;&gt;&gt; m.scale_denominator
C++ signature :
double scale_denominator(mapnik::Map {lvalue})
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="view_transform"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">view_transform</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
view_transform( (Map)arg1) -&gt; ViewTransform :
Map CoordinateTransform object.
Usage:
&gt;&gt;&gt; m.view_transform()
C++ signature :
mapnik::CoordTransform view_transform(mapnik::Map {lvalue})
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="zoom"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">zoom</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
zoom( (Map)arg1, (float)arg2) -&gt; None :
Zoom in by a given factor.
Usage:
&gt;&gt;&gt; m.zoom(0.25)
C++ signature :
void zoom(mapnik::Map {lvalue},double)
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="zoom_all"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">zoom_all</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
zoom_all( (Map)arg1) -&gt; None :
Set the geographical extent of the map
to the combined extents of all active layers.
Usage:
&gt;&gt;&gt; m.zoom_all()
C++ signature :
void zoom_all(mapnik::Map {lvalue})
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<a name="zoom_to_box"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<table width="100%" cellpadding="0" cellspacing="0" border="0">
<tr valign="top"><td>
<h3 class="epydoc"><span class="sig"><span class="sig-name">zoom_to_box</span>(<span class="sig-arg">...</span>)</span>
</h3>
</td><td align="right" valign="top"
>&nbsp;
</td>
</tr></table>
<pre class="literalblock">
zoom_to_box( (Map)arg1, (Envelope)arg2) -&gt; None :
Set the geographical extent of the map
by specifying a Mapnik Envelope.
Usage:
&gt;&gt;&gt; extext = Envelope(-180.0, -90.0, 180.0, 90.0)
&gt;&gt;&gt; m.zoom_to_box(extent)
C++ signature :
void zoom_to_box(mapnik::Map {lvalue},mapnik::Envelope&lt;double&gt;)
</pre>
<dl class="fields">
</dl>
</td></tr></table>
</div>
<br />
<!-- ==================== PROPERTY DETAILS ==================== -->
<a name="section-PropertyDetails"></a>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr bgcolor="#70b0f0" class="table-header">
<td align="left" colspan="2" class="table-header">
<span class="table-header">Property Details</span></td>
</tr>
</table>
<a name="aspect_fix_mode"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<h3 class="epydoc">aspect_fix_mode</h3>
<p>Get/Set aspect fix mode. Usage:</p>
<pre class="py-doctest">
<span class="py-prompt">&gt;&gt;&gt; </span>m.aspect_fix_mode = aspect_fix_mode.GROW_BBOX</pre>
<dl class="fields">
<dt>Get Method:</dt>
<dd class="value"><span class="summary-sig"><i>unreachable</i>(<span class="summary-sig-arg">...</span>)</span>
</dd>
<dt>Set Method:</dt>
<dd class="value"><span class="summary-sig"><i>unreachable</i>(<span class="summary-sig-arg">...</span>)</span>
</dd>
</dl>
</td></tr></table>
</div>
<a name="background"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<h3 class="epydoc">background</h3>
<p>The background color of the map.</p>
<p>Usage: &gt;&gt;&gt; m.background = Color('steelblue')</p>
<dl class="fields">
<dt>Get Method:</dt>
<dd class="value"><span class="summary-sig"><i>unreachable</i>(<span class="summary-sig-arg">...</span>)</span>
</dd>
<dt>Set Method:</dt>
<dd class="value"><span class="summary-sig"><i>unreachable</i>(<span class="summary-sig-arg">...</span>)</span>
</dd>
</dl>
</td></tr></table>
</div>
<a name="buffer_size"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<h3 class="epydoc">buffer_size</h3>
<p>Get/Set the size of buffer around map in pixels.</p>
<p>Usage: &gt;&gt;&gt; m.buffer_size 0 # zero by default &gt;&gt;&gt;
m.buffer_size = 2 &gt;&gt;&gt; m.buffer_size 2</p>
<dl class="fields">
<dt>Get Method:</dt>
<dd class="value"><span class="summary-sig"><i>unreachable</i>(<span class="summary-sig-arg">...</span>)</span>
</dd>
<dt>Set Method:</dt>
<dd class="value"><span class="summary-sig"><i>unreachable</i>(<span class="summary-sig-arg">...</span>)</span>
</dd>
</dl>
</td></tr></table>
</div>
<a name="height"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<h3 class="epydoc">height</h3>
<p>Get/Set the height of the map in pixels. Minimum settable size is 16
pixels.</p>
<p>Usage: &gt;&gt;&gt; m.height 400 &gt;&gt;&gt; m.height = 600
&gt;&gt;&gt; m.height 600</p>
<dl class="fields">
<dt>Get Method:</dt>
<dd class="value"><span class="summary-sig"><i>unreachable</i>(<span class="summary-sig-arg">...</span>)</span>
</dd>
<dt>Set Method:</dt>
<dd class="value"><span class="summary-sig"><i>unreachable</i>(<span class="summary-sig-arg">...</span>)</span>
</dd>
</dl>
</td></tr></table>
</div>
<a name="layers"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<h3 class="epydoc">layers</h3>
<p>The list of map layers.</p>
<p>Usage: &gt;&gt;&gt; m.layers &lt;mapnik._mapnik.Layers object at
0x6d458&gt;&gt;&gt;&gt; m.layers[0] &lt;mapnik._mapnik.Layer object at
0x5fe130&gt;</p>
<dl class="fields">
<dt>Get Method:</dt>
<dd class="value"><span class="summary-sig"><i>unreachable</i>(<span class="summary-sig-arg">...</span>)</span>
</dd>
</dl>
</td></tr></table>
</div>
<a name="srs"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<h3 class="epydoc">srs</h3>
<pre class="literalblock">
Spatial reference in Proj.4 format.
Either an epsg code or proj literal.
For example, a proj literal:
'+proj=latlong +datum=WGS84'
and a proj epsg code:
'+init=epsg:4326'
Note: using epsg codes requires the installation of
the Proj.4 'epsg' data file normally found in '/usr/local/share/proj'
Usage:
&gt;&gt;&gt; m.srs
'+proj=latlong +datum=WGS84' # The default srs if not initialized with custom srs
&gt;&gt;&gt; # set to google mercator with Proj.4 literal
...
&gt;&gt;&gt; m.srs = '+proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgrids=@null +no_defs +over'
</pre>
<dl class="fields">
<dt>Get Method:</dt>
<dd class="value"><span class="summary-sig"><i>unreachable</i>(<span class="summary-sig-arg">...</span>)</span>
</dd>
<dt>Set Method:</dt>
<dd class="value"><span class="summary-sig"><i>unreachable</i>(<span class="summary-sig-arg">...</span>)</span>
</dd>
</dl>
</td></tr></table>
</div>
<a name="width"></a>
<div>
<table class="details" border="1" cellpadding="3"
cellspacing="0" width="100%" bgcolor="white">
<tr><td>
<h3 class="epydoc">width</h3>
<p>Get/Set the width of the map in pixels. Minimum settable size is 16
pixels.</p>
<p>Usage: &gt;&gt;&gt; m.width 600 &gt;&gt;&gt; m.width = 800
&gt;&gt;&gt; m.width 800</p>
<dl class="fields">
<dt>Get Method:</dt>
<dd class="value"><span class="summary-sig"><i>unreachable</i>(<span class="summary-sig-arg">...</span>)</span>
</dd>
<dt>Set Method:</dt>
<dd class="value"><span class="summary-sig"><i>unreachable</i>(<span class="summary-sig-arg">...</span>)</span>
</dd>
</dl>
</td></tr></table>
</div>
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