Author: kn
Date: Tue Aug 7 11:16:56 2007
New Revision: 5828
Log:
- Documented issue #011168: Unregular steps sizes for charts with more then 10
bars.
Modified:
trunk/Graph/docs/tutorial.txt
Modified: trunk/Graph/docs/tutorial.txt
==============================================================================
--- trunk/Graph/docs/tutorial.txt [iso-8859-1] (original)
+++ trunk/Graph/docs/tutorial.txt [iso-8859-1] Tue Aug 7 11:16:56 2007
@@ -173,6 +173,32 @@
.. image:: img/tutorial_bar_chart.svg.png
:alt: Simple bar chart
+
+Lots of bars
+~~~~~~~~~~~~
+
+ezcGraph by default reduces the amount of steps shown on an axis to about 10
+steps. This may cause unexpected results for when trying to draw a bar chart
+with more then 10 bars in one dataset. You may overwrite the behaviour by
+manually setting the amount of steps on the x axis.
+
+ <?php
+ // Initialize graph ...
+ $graph->xAxis->labelCount = count( $chart->data['name'] );
+ // Output graph ...
+ ?>
+
+This works because all datasets implemnt the interface Countable. If you want
+to use it for more then one dataset you could do the following:
+
+ <?php
+ // Initialize graph ...
+ $chart->xAxis->labelCount = max(
+ count( $chart->data['name 1'] ),
+ count( $chart->data['name 2'] )
+ );
+ // Output graph ...
+ ?>
Combining bar and line charts
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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