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<h2><span class="refentrytitle"><a name="GogChartMap.top_of_page"></a>GogChartMap</span></h2>
<p>GogChartMap</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="GogChartMap.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis"> <a class="link" href="GogChartMap.html#GogChartMap-struct" title="GogChartMap">GogChartMap</a>;
<a class="link" href="GogChartMap.html#GogChartMapPolarData" title="GogChartMapPolarData">GogChartMapPolarData</a>;
<span class="returnvalue">double</span> <a class="link" href="GogChartMap.html#gog-chart-map-2D-derivative-to-view" title="gog_chart_map_2D_derivative_to_view ()">gog_chart_map_2D_derivative_to_view</a> (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>,
<em class="parameter"><code><span class="type">double</span> deriv</code></em>,
<em class="parameter"><code><span class="type">double</span> x</code></em>,
<em class="parameter"><code><span class="type">double</span> y</code></em>);
<span class="returnvalue">void</span> <a class="link" href="GogChartMap.html#gog-chart-map-2D-to-view" title="gog_chart_map_2D_to_view ()">gog_chart_map_2D_to_view</a> (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>,
<em class="parameter"><code><span class="type">double</span> x</code></em>,
<em class="parameter"><code><span class="type">double</span> y</code></em>,
<em class="parameter"><code><span class="type">double</span> *u</code></em>,
<em class="parameter"><code><span class="type">double</span> *v</code></em>);
<span class="returnvalue">void</span> <a class="link" href="GogChartMap.html#gog-chart-map-free" title="gog_chart_map_free ()">gog_chart_map_free</a> (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>);
<a class="link" href="GogAxisMap.html" title="GogAxisMap"><span class="returnvalue">GogAxisMap</span></a> * <a class="link" href="GogChartMap.html#gog-chart-map-get-axis-map" title="gog_chart_map_get_axis_map ()">gog_chart_map_get_axis_map</a> (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> index</code></em>);
<a class="link" href="GogChartMap.html#GogChartMapPolarData" title="GogChartMapPolarData"><span class="returnvalue">GogChartMapPolarData</span></a> * <a class="link" href="GogChartMap.html#gog-chart-map-get-polar-parms" title="gog_chart_map_get_polar_parms ()">gog_chart_map_get_polar_parms</a> (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>);
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="GogChartMap.html#gog-chart-map-is-valid" title="gog_chart_map_is_valid ()">gog_chart_map_is_valid</a> (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>);
<a class="link" href="GOPath.html" title="GOPath"><span class="returnvalue">GOPath</span></a> * <a class="link" href="GogChartMap.html#gog-chart-map-make-close-path" title="gog_chart_map_make_close_path ()">gog_chart_map_make_close_path</a> (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>,
<em class="parameter"><code><span class="type">double</span> const *x</code></em>,
<em class="parameter"><code><span class="type">double</span> const *y</code></em>,
<em class="parameter"><code><span class="type">int</span> n_points</code></em>,
<em class="parameter"><code><a class="link" href="GogSeries.html#GogSeriesFillType" title="enum GogSeriesFillType"><span class="type">GogSeriesFillType</span></a> fill_type</code></em>);
<a class="link" href="GOPath.html" title="GOPath"><span class="returnvalue">GOPath</span></a> * <a class="link" href="GogChartMap.html#gog-chart-map-make-path" title="gog_chart_map_make_path ()">gog_chart_map_make_path</a> (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>,
<em class="parameter"><code><span class="type">double</span> const *x</code></em>,
<em class="parameter"><code><span class="type">double</span> const *y</code></em>,
<em class="parameter"><code><span class="type">int</span> n_points</code></em>,
<em class="parameter"><code><a class="link" href="goffice-0.10-Miscellaneous.html#GOLineInterpolation" title="enum GOLineInterpolation"><span class="type">GOLineInterpolation</span></a> interpolation</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> skip_invalid</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);
<a class="link" href="GogChartMap.html" title="GogChartMap"><span class="returnvalue">GogChartMap</span></a> * <a class="link" href="GogChartMap.html#gog-chart-map-new" title="gog_chart_map_new ()">gog_chart_map_new</a> (<em class="parameter"><code><a class="link" href="GogChart.html" title="GogChart"><span class="type">GogChart</span></a> *chart</code></em>,
<em class="parameter"><code><a class="link" href="GogView.html#GogViewAllocation"><span class="type">GogViewAllocation</span></a> const *area</code></em>,
<em class="parameter"><code><a class="link" href="GogAxis.html" title="GogAxis"><span class="type">GogAxis</span></a> *axis0</code></em>,
<em class="parameter"><code><a class="link" href="GogAxis.html" title="GogAxis"><span class="type">GogAxis</span></a> *axis1</code></em>,
<em class="parameter"><code><a class="link" href="GogAxis.html" title="GogAxis"><span class="type">GogAxis</span></a> *axis2</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> fill_area</code></em>);
<span class="returnvalue">void</span> <a class="link" href="GogChartMap.html#gog-chart-map-view-to-2D" title="gog_chart_map_view_to_2D ()">gog_chart_map_view_to_2D</a> (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>,
<em class="parameter"><code><span class="type">double</span> x</code></em>,
<em class="parameter"><code><span class="type">double</span> y</code></em>,
<em class="parameter"><code><span class="type">double</span> *u</code></em>,
<em class="parameter"><code><span class="type">double</span> *v</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="GogChartMap.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
GBoxed
+----GogChartMap
</pre>
</div>
<div class="refsect1">
<a name="GogChartMap.description"></a><h2>Description</h2>
<p>
</p>
</div>
<div class="refsect1">
<a name="GogChartMap.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GogChartMap-struct"></a><h3>GogChartMap</h3>
<pre class="programlisting">typedef struct _GogChartMap GogChartMap;</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="GogChartMapPolarData"></a><h3>GogChartMapPolarData</h3>
<pre class="programlisting">typedef struct {
double cx, cy;
double rx, ry;
double th0, th1;
} GogChartMapPolarData;
</pre>
<div class="variablelist"><table border="0" class="variablelist">
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<td><p><span class="term"><span class="type">double</span> <em class="structfield"><code><a name="GogChartMapPolarData.cx"></a>cx</code></em>;</span></p></td>
<td>center horizontal position.</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">double</span> <em class="structfield"><code><a name="GogChartMapPolarData.cy"></a>cy</code></em>;</span></p></td>
<td>center vertical position.</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">double</span> <em class="structfield"><code><a name="GogChartMapPolarData.rx"></a>rx</code></em>;</span></p></td>
<td>available horizontal space from the center.</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">double</span> <em class="structfield"><code><a name="GogChartMapPolarData.ry"></a>ry</code></em>;</span></p></td>
<td>available vertical space from the center.</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">double</span> <em class="structfield"><code><a name="GogChartMapPolarData.th0"></a>th0</code></em>;</span></p></td>
<td>start angle.</td>
</tr>
<tr>
<td><p><span class="term"><span class="type">double</span> <em class="structfield"><code><a name="GogChartMapPolarData.th1"></a>th1</code></em>;</span></p></td>
<td>end angle.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gog-chart-map-2D-derivative-to-view"></a><h3>gog_chart_map_2D_derivative_to_view ()</h3>
<pre class="programlisting"><span class="returnvalue">double</span> gog_chart_map_2D_derivative_to_view (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>,
<em class="parameter"><code><span class="type">double</span> deriv</code></em>,
<em class="parameter"><code><span class="type">double</span> x</code></em>,
<em class="parameter"><code><span class="type">double</span> y</code></em>);</pre>
<p>
Converts a 2D slope from data space to canvas space. It is only implemented
for xy maps.
</p>
<div class="variablelist"><table border="0" class="variablelist">
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<td><p><span class="term"><em class="parameter"><code>map</code></em> :</span></p></td>
<td>a <a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>deriv</code></em> :</span></p></td>
<td>the slope in data space</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>x</code></em> :</span></p></td>
<td>data x value</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>y</code></em> :</span></p></td>
<td>data y value</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the slope in canvas space or go_nan.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gog-chart-map-2D-to-view"></a><h3>gog_chart_map_2D_to_view ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gog_chart_map_2D_to_view (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>,
<em class="parameter"><code><span class="type">double</span> x</code></em>,
<em class="parameter"><code><span class="type">double</span> y</code></em>,
<em class="parameter"><code><span class="type">double</span> *u</code></em>,
<em class="parameter"><code><span class="type">double</span> *v</code></em>);</pre>
<p>
Converts a 2D coordinate from data space to canvas space.
</p>
<div class="variablelist"><table border="0" class="variablelist">
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</colgroup>
<tbody>
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<td><p><span class="term"><em class="parameter"><code>map</code></em> :</span></p></td>
<td>a <a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>x</code></em> :</span></p></td>
<td>data x value</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>y</code></em> :</span></p></td>
<td>data y value</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>u</code></em> :</span></p></td>
<td>placeholder for x converted value</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>v</code></em> :</span></p></td>
<td>placeholder for y converted value</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gog-chart-map-free"></a><h3>gog_chart_map_free ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gog_chart_map_free (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>);</pre>
<p>
Frees <em class="parameter"><code>map</code></em> object.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term"><em class="parameter"><code>map</code></em> :</span></p></td>
<td>a <a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gog-chart-map-get-axis-map"></a><h3>gog_chart_map_get_axis_map ()</h3>
<pre class="programlisting"><a class="link" href="GogAxisMap.html" title="GogAxisMap"><span class="returnvalue">GogAxisMap</span></a> * gog_chart_map_get_axis_map (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>,
<em class="parameter"><code>unsigned <span class="type">int</span> index</code></em>);</pre>
<p>
Convenience function which returns one of the associated axis_map.
</p>
<p>
Valid values are in range [0..2].
</p>
<div class="variablelist"><table border="0" class="variablelist">
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<td><p><span class="term"><em class="parameter"><code>map</code></em> :</span></p></td>
<td>a <a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>index</code></em> :</span></p></td>
<td>axis index</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a <a class="link" href="GogAxisMap.html" title="GogAxisMap"><span class="type">GogAxisMap</span></a>. <span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gog-chart-map-get-polar-parms"></a><h3>gog_chart_map_get_polar_parms ()</h3>
<pre class="programlisting"><a class="link" href="GogChartMap.html#GogChartMapPolarData" title="GogChartMapPolarData"><span class="returnvalue">GogChartMapPolarData</span></a> * gog_chart_map_get_polar_parms (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>);</pre>
<p>
Convenience function for retrieving data related to polar plot layout.
</p>
<div class="variablelist"><table border="0" class="variablelist">
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<td><p><span class="term"><em class="parameter"><code>map</code></em> :</span></p></td>
<td>a <a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a <a class="link" href="GogChartMap.html#GogChartMapPolarData" title="GogChartMapPolarData"><span class="type">GogChartMapPolarData</span></a> struct. <span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gog-chart-map-is-valid"></a><h3>gog_chart_map_is_valid ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> gog_chart_map_is_valid (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>);</pre>
<p>
Tests if <em class="parameter"><code>map</code></em> was correctly initializied, i.e. if all associated axis_map
are valid (see <a class="link" href="GogAxisMap.html#gog-axis-map-is-valid" title="gog_axis_map_is_valid ()"><code class="function">gog_axis_map_is_valid()</code></a> ).
</p>
<p>
given
to gog_chart_map_new.
</p>
<div class="variablelist"><table border="0" class="variablelist">
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<td><p><span class="term"><em class="parameter"><code>map</code></em> :</span></p></td>
<td>a <a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>
<a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if <em class="parameter"><code>map</code></em> is valid.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gog-chart-map-make-close-path"></a><h3>gog_chart_map_make_close_path ()</h3>
<pre class="programlisting"><a class="link" href="GOPath.html" title="GOPath"><span class="returnvalue">GOPath</span></a> * gog_chart_map_make_close_path (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>,
<em class="parameter"><code><span class="type">double</span> const *x</code></em>,
<em class="parameter"><code><span class="type">double</span> const *y</code></em>,
<em class="parameter"><code><span class="type">int</span> n_points</code></em>,
<em class="parameter"><code><a class="link" href="GogSeries.html#GogSeriesFillType" title="enum GogSeriesFillType"><span class="type">GogSeriesFillType</span></a> fill_type</code></em>);</pre>
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<td><p><span class="term"><em class="parameter"><code>map</code></em> :</span></p></td>
<td>a <a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>x</code></em> :</span></p></td>
<td>x data</td>
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<td><p><span class="term"><em class="parameter"><code>y</code></em> :</span></p></td>
<td>y data</td>
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<td><p><span class="term"><em class="parameter"><code>n_points</code></em> :</span></p></td>
<td>number of points</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>fill_type</code></em> :</span></p></td>
<td>fill type</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new GOPath using <em class="parameter"><code>x</code></em> and <em class="parameter"><code>y</code></em> data, with respect to <em class="parameter"><code>fill_type</code></em>.</td>
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</table></div>
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<div class="refsect2">
<a name="gog-chart-map-make-path"></a><h3>gog_chart_map_make_path ()</h3>
<pre class="programlisting"><a class="link" href="GOPath.html" title="GOPath"><span class="returnvalue">GOPath</span></a> * gog_chart_map_make_path (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>,
<em class="parameter"><code><span class="type">double</span> const *x</code></em>,
<em class="parameter"><code><span class="type">double</span> const *y</code></em>,
<em class="parameter"><code><span class="type">int</span> n_points</code></em>,
<em class="parameter"><code><a class="link" href="goffice-0.10-Miscellaneous.html#GOLineInterpolation" title="enum GOLineInterpolation"><span class="type">GOLineInterpolation</span></a> interpolation</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> skip_invalid</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre>
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<td><p><span class="term"><em class="parameter"><code>map</code></em> :</span></p></td>
<td>a <a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>x</code></em> :</span></p></td>
<td>x data</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>y</code></em> :</span></p></td>
<td>y data</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>n_points</code></em> :</span></p></td>
<td>number of points</td>
</tr>
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<td><p><span class="term"><em class="parameter"><code>interpolation</code></em> :</span></p></td>
<td>interpolation type</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>skip_invalid</code></em> :</span></p></td>
<td>whether to ignore invalid data or interrupt the interpolation</td>
</tr>
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<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new GOPath using <em class="parameter"><code>x</code></em> and <em class="parameter"><code>y</code></em> data, each valid point being connected with respect to <em class="parameter"><code>interpolation</code></em>.</td>
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</tbody>
</table></div>
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<div class="refsect2">
<a name="gog-chart-map-new"></a><h3>gog_chart_map_new ()</h3>
<pre class="programlisting"><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="returnvalue">GogChartMap</span></a> * gog_chart_map_new (<em class="parameter"><code><a class="link" href="GogChart.html" title="GogChart"><span class="type">GogChart</span></a> *chart</code></em>,
<em class="parameter"><code><a class="link" href="GogView.html#GogViewAllocation"><span class="type">GogViewAllocation</span></a> const *area</code></em>,
<em class="parameter"><code><a class="link" href="GogAxis.html" title="GogAxis"><span class="type">GogAxis</span></a> *axis0</code></em>,
<em class="parameter"><code><a class="link" href="GogAxis.html" title="GogAxis"><span class="type">GogAxis</span></a> *axis1</code></em>,
<em class="parameter"><code><a class="link" href="GogAxis.html" title="GogAxis"><span class="type">GogAxis</span></a> *axis2</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> fill_area</code></em>);</pre>
<p>
Creates a new <a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a>, used for conversion from data space
to canvas space.
</p>
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<td><p><span class="term"><em class="parameter"><code>chart</code></em> :</span></p></td>
<td>a <a class="link" href="GogChart.html" title="GogChart"><span class="type">GogChart</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>area</code></em> :</span></p></td>
<td>area allocated to chart</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>axis0</code></em> :</span></p></td>
<td>1st dimension axis</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>axis1</code></em> :</span></p></td>
<td>2nd dimension axis</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>axis2</code></em> :</span></p></td>
<td>3rd dimension axis</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>fill_area</code></em> :</span></p></td>
<td>does chart fill allocated area</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> object. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gog-chart-map-view-to-2D"></a><h3>gog_chart_map_view_to_2D ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> gog_chart_map_view_to_2D (<em class="parameter"><code><a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a> *map</code></em>,
<em class="parameter"><code><span class="type">double</span> x</code></em>,
<em class="parameter"><code><span class="type">double</span> y</code></em>,
<em class="parameter"><code><span class="type">double</span> *u</code></em>,
<em class="parameter"><code><span class="type">double</span> *v</code></em>);</pre>
<p>
Converts a 2D coordinate from canvas space to data space.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
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</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>map</code></em> :</span></p></td>
<td>a <a class="link" href="GogChartMap.html" title="GogChartMap"><span class="type">GogChartMap</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>x</code></em> :</span></p></td>
<td>data x value</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>y</code></em> :</span></p></td>
<td>data y value</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>u</code></em> :</span></p></td>
<td>placeholder for x converted value</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>v</code></em> :</span></p></td>
<td>placeholder for y converted value</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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