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Documentation for QML custom model demo

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Michal Klocek Refactor documentation...	r330	/*!
Tero Ahola Fixing example documentation	r500	\example examples/barchart
sauimone Updated barchart examples and documentation. Also bug fix to barchart model	r387	\title BarChart Example
		\subtitle
Michal Klocek Refactor documentation...	r330
sauimone Fixed category handling of barcharts. Now the categories can be undefined. Updated documentation.	r1208	The example shows how to create simple bar chart. Barchart shows the data in sets as separate bars, which are drawn at the x-axis to the position defined by data.
Michal Klocek Refactor documentation...	r330
Tero Ahola Updated bar chart documentation	r971	\image examples_barchart.png
sauimone Updated barchart examples and documentation. Also bug fix to barchart model	r387
sauimone Fixed category handling of barcharts. Now the categories can be undefined. Updated documentation.	r1208	Data that barchart visualizes, is defined by QBarSet instances. Here we create some sets and append data
		we want to visualize to them. Note that first and third QPointF in each set have smaller intervals at their x coordinates. This will be reflected in the chart.
sauimone Updated barchart examples and documentation. Also bug fix to barchart model	r387
sauimone fixed example paths in barchart documentation	r492	\snippet ../examples/barchart/main.cpp 1
sauimone Updated barchart examples and documentation. Also bug fix to barchart model	r387
sauimone Fixed category handling of barcharts. Now the categories can be undefined. Updated documentation.	r1208	To combine the sets to a chart, we need to create QBarSeries instance. Then we append our barsets to the series.
sauimone Updated barchart examples and documentation. Also bug fix to barchart model	r387
sauimone fixed example paths in barchart documentation	r492	\snippet ../examples/barchart/main.cpp 2
sauimone Updated barchart examples and documentation. Also bug fix to barchart model	r387
sauimone Fixed category handling of barcharts. Now the categories can be undefined. Updated documentation.	r1208	Next we create a chart and add the series to it.
Tero Ahola Updated bar chart documentation	r971
sauimone Fixed category handling of barcharts. Now the categories can be undefined. Updated documentation.	r1208	\snippet ../examples/barchart/main.cpp 3
sauimone Updated barchart examples and documentation. Also bug fix to barchart model	r387
sauimone Fixed category handling of barcharts. Now the categories can be undefined. Updated documentation.	r1208	We want to have the legend displayed at the bottom of the chart. Also we turn on the nice numbers algorithm on for y-axis.
Tero Ahola Updated bar chart documentation	r971
sauimone Fixed category handling of barcharts. Now the categories can be undefined. Updated documentation.	r1208	\snippet ../examples/barchart/main.cpp 4
sauimone Updated barchart examples and documentation. Also bug fix to barchart model	r387
Tero Ahola Updated bar chart documentation	r971	Finally we add the chart onto a view.

sauimone Fixed category handling of barcharts. Now the categories can be undefined. Updated documentation.	r1208	\snippet ../examples/barchart/main.cpp 5
Tero Ahola Updated bar chart documentation	r971
		And it is ready to be shown in a window.

sauimone Fixed category handling of barcharts. Now the categories can be undefined. Updated documentation.	r1208	\snippet ../examples/percentbarchart/main.cpp 6
Tero Ahola Updated bar chart documentation	r971	*/

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