DISPLAYING STACKED BAR CHARTS IN A LIMITED DISPLAY AREA

• US 20100251151A1
• Filed: 03/27/2009
• Published: 09/30/2010
• Est. Priority Date: 03/27/2009
• Status: Active Grant

• Current Assignee: SAP SE
• Original Assignee: MeLLmo Incorporated (SAP SE)
• Inventors: Alsbury, Quinton, Becerra, David
• Granted Patent: US 8,239,765 B2
• Time in Patent Office: Days
• US Class Current: 715/765
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06T 11/206 Drawing of charts or graphs
• CPC Class Codes: H04M 1/72427 for supporting games or graphical animations

Abstract

A system and a method are disclosed for visually displaying data points using stacked bar charts on a display screen with limited display area. A magnification region allows presentation of detailed information for a stacked bar compared to other stacked bars displayed. A stacked bar within a magnification region can be further magnified to display additional information for individual bars within the stacked bar. An individual bar is expanded to a height suitable for displaying information associated with the bar. The stacked bar chart can be moved relative to the magnification region thereby changing the stacked bar displayed within the magnification region.

Claims

1. A method for displaying on a display screen of a mobile device a chart representing a plurality of data points, the method comprising:

displaying a set of data points on the display screen, each data point associated with an x-coordinate value and a y-coordinate value, a plurality of data points associated with an x-coordinate value, each data point displayed with a shape having a first fixed width and a height based on the y-coordinate value of the data point;

responsive to receiving a first user input;

altering display of the plurality of shapes associated with an x-coordinate value to display the shapes with a second fixed width larger than the first fixed width;

responsive to receiving a second user input;

altering display of a first shape associated with a first data point with the x-coordinate value to display the shape with an increased height; and

displaying information associated with the first shape overlaying the first shape; and

responsive to receiving a third user input;

altering display of a second shape associated with a second data point with the x-coordinate value to display the second shape with an increased height; and

displaying information associated with the second shape overlaying the second shape.

2. The method of claim 1, wherein the chart is a stacked bar chart.

3. The method of claim 1, further comprising:

responsive to receiving the second user input, displaying a third shape associated with the data point with a reduced height.

4. The method of claim 1, further comprising:

responsive to receiving the third user input, altering the first shape to display height based on the y-coordinate value of the first data point.

5. The method of claim 1, further comprising:

responsive to receiving the second user input, altering display of a first shape to wiggle.

6. The method of claim 1, further comprising:

responsive to receiving the second user input, altering display of a first shape to flash.

7. The method of claim 1, further comprising:

displaying the x-coordinate value of the data points associated with the x-coordinate adjacent to the plurality of shapes.

8. The method of claim 1, further comprising:

displaying an aggregate y-coordinate value based on the data points with the x-coordinate value overlaying a subset of the plurality of shapes;

9. A system for displaying on a display screen of a mobile device a chart representing a plurality of data points, the system comprising:

a computer processor; and

a computer-readable storage medium storing computer program modules configured to execute on the computer processor, the computer program modules comprising;

an input/output driver module configured to;

display a set of data points on the display screen, each data point associated with an x-coordinate value and a y-coordinate value, a plurality of data points associated with an x-coordinate value, each data point displayed with a shape having a first fixed width and a height based on the y-coordinate value of the data point;

responsive to receiving a first user input;

alter display of the plurality of shapes associated with an x-coordinate value to display the shapes with a second fixed width larger than the first fixed width;

responsive to receiving a second user input;

alter display of a first shape associated with a first data point with the x-coordinate value to display the shape with an increased height; and

display information associated with the first shape overlaying the first shape; and

responsive to receiving a third user input;

alter display of a second shape associated with a second data point with the x-coordinate value to display the second shape with an increased height; and

display information associated with the second shape overlaying the second shape.

10. The system of claim 9, wherein the chart is a stacked bar chart.

11. The system of claim 9, wherein the input/output driver module is further configured to:

responsive to receiving the second user input, display a third shape associated with the data point with a reduced height.

12. The method of claim 9, wherein the input/output driver module is further configured to:

responsive to receiving the third user input, alter the first shape to display height based on the y-coordinate value of the first data point.

13. The method of claim 9, wherein the input/output driver module is further configured to:

responsive to receiving the second user input, alter display of a first shape to wiggle.

14. The method of claim 9, wherein the input/output driver module is further configured to:

responsive to receiving the second user input, alter display of a first shape to flash.

15. A computer program product having a computer-readable storage medium storing computer-executable code for displaying on a display screen of a mobile device a chart representing a plurality of data points, the code comprising:

an input/output driver module configured to;

display a set of data points on the display screen, each data point associated with an x-coordinate value and a y-coordinate value, a plurality of data points associated with an x-coordinate value, each data point displayed with a shape having a first fixed width and a height based on the y-coordinate value of the data point;

responsive to receiving a first user input;

alter display of the plurality of shapes associated with an x-coordinate value to display the shapes with a second fixed width larger than the first fixed width;

responsive to receiving a second user input;

alter display of a first shape associated with a first data point with the x-coordinate value to display the shape with an increased height; and

display information associated with the first shape overlaying the first shape; and

responsive to receiving a third user input;

alter display of a second shape associated with a second data point with the x-coordinate value to display the second shape with an increased height; and

display information associated with the second shape overlaying the second shape.

16. The computer program product of claim 15, wherein the chart is a stacked bar chart.

17. The computer program product of claim 15, wherein the input/output driver module is further configured to:

responsive to receiving the second user input, display a third shape associated with the data point with a reduced height.

18. The computer program product of claim 15, wherein the input/output driver module is further configured to:

responsive to receiving the third user input, alter the first shape to display height based on the y-coordinate value of the first data point.

19. The computer program product of claim 15, wherein the input/output driver module is further configured to:

responsive to receiving the second user input, alter display of a first shape to wiggle.

20. The computer program product of claim 15, wherein the input/output driver module is further configured to:

responsive to receiving the second user input, alter display of a first shape to flash.