## Display

The chart's display is a window used to display the generated chart and to allow the user to interact with it. It is possible to highlight data of interest, zoom in & out and pan. The basic appearance of the screen is as follows:
Interface description:
1 - Graphic style button - Opens up the chart style dialog.
2 -Title - Displays the title of the histogram chart.
3 - Y Axis label - Displays the Y axis' title.
4 - X Axis label - Displays the X axis' title.
5 - Plot area - The area where the chart will be drawn.
The following steps will explain how to perform such operations:

### Highlight:

The highlight function allows the user to highlight data of particular interest. The way to highlight the data will depend on the type of chart being shown on the display.

### Histogram

To highlight a histogram's interval simply click on the desired interval and all data contained by it will highlighted on the chart and any other windows that are displaying data related to it (such as the table or the map display).
For example, clicking on the IDADE_MED interval that corresponds to values between 24 and 26 years old will highlight the states that correspond to that average age in both the table and the map display:
It is also possible to highlight more intervals once one has already been highlighted, in this case, the newly selected interval will be added to the previous selection, in order to do so, hold the control or the shift button while clicking on the interval of choice.
For example, adding the interval that corresponds to values between 28 and 30 years old :

### Scatter

To highlight a scatter's interval click and drag the mouse button and a rectangle will be drawn, adjust it's size to contain all the points of interest and all data contained by them will highlighted on the chart and any other windows that are displaying data related to it (such as the table or the map display).
For example, drawing a rectangle that contains years of study between 7 and 8 and family income between two thousand and three thousand:
It is also possible to highlight more intervals once one has already been highlighted, in this case, the newly selected interval will be added to the previous selection, in order to do so, hold the control or the shift button while drawing the selection rectangle.
For example, adding a rectangle that contains years of study between 6 and 7 and family income between one thousand and two thousand:
In any chart type, clicking on an empty space removes all selected objects.

###

### Zoom:

Zooming in on a chart can be useful when the data being displayed contains to many intervals or points. In order to zoom in or out of a chart simply roll the middle mouse button. Forward to zoom in, backwards to zoom out.

### Pan:

It is also possible to pan the chart Display to check the data of a specific point. To do that, simply hold the middle button and drag the mouse to the desired spot on the display.