# Patent

## Title
Method and system for processing gestures to cause computation of measurement of an angle or a segment using a touch system

## Abstract

A method and a system for processing gestures to cause computation of measurements of an angle or a segment using a touch screen are disclosed. The system includes a processor, a touch screen coupled to the processor, and a gesture module coupled to the processor for executing a gesturing method. The method includes determining a gesture shape. For example, when the gesture shape is an arc or a line between two touching lines, the method calculates the measurement of the angle between the touching lines and behind the gestured line or arc. When the gesture is a line crossing a segment, the method calculates the measurement from the beginning of the segment to the end of the segment. The method further displays the calculated measurement of at least one of the angle or the segment.

## Background
CROSS REFERENCES TO RELATED APPLICATIONS
This application claims priority from U.S. Provisional Patent Application No. 61/947,747 filed on Mar. 4, 2014, which is hereby incorporated by reference in its entirety.


BACKGROUND OF THE INVENTION
Field of the Invention
Embodiments of the present invention generally relate to a method and system for processing gestures to cause computation of measurements of an angle or a segment using a touch system.
Description of the Related Art
In a touch system, measuring segments and angles is cumbersome. Angles are generally defined by three (3) points. Calculating the measurement of an angle generally involves multiple steps—accessing the menu, choosing a measurement tool, and then touching the three points defining the angle.
Therefore, there is a need for a method and/or apparatus for processing gestures to cause computation of measurements of an angle or a line using a touch system.
SUMMARY OF THE INVENTION
Embodiments of the present invention relate to a method and a system for processing gestures to cause computation of measurements of an angle or a segment using a touch screen. The system includes a processor, a touch screen coupled to the processor, a gesture module coupled to the processor for executing a gesturing method. The method includes determining a gesture shape. For example, when the gesture shape is an arc or a line between two touching lines, the method calculates the angle between the touching lines and behind the gestured line or arc. When the gesture is a line crossing a segment, the method calculates the measurement from the beginning point of the segment to the end point of the segment. The method further displays the calculated measurement of at least one of the angle or the segment.



BRIEF DESCRIPTION OF THE DRAWINGS
So that the manner in which the above recited features of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only typical embodiments of this invention and are therefore not to be considered limiting of its scope, for the invention may admit to other equally effective embodiments.
FIG. 1 is an embodiment of a diagram depicting a gesture for triggering calculating an angle using a touch screen.
FIG. 2 is an embodiment of a diagram depicting a calculation of the angle of FIG. 1;
FIG. 3 is an embodiment of a diagram depicting a gesture for triggering calculating a segment using a touch screen.
FIG. 4 is an embodiment of a diagram depicting a calculation of the segment of FIG. 3;
FIG. 5 is an embodiment of a flow diagram of a gesturing method for processing gestures to cause computation of measurements of an angle or a segment using a touch system; and
FIG. 6 is an embodiment of a system diagram utilizing the method of FIG. 5.



DETAILED DESCRIPTION
Utilizing a touch screen, the user slides fingers, a pointer or the likes from one line to another. In some embodiments, a touch screen is a screen that is capable of recognizing a gesture without necessarily requiring an actual (e.g., physical) touch of the screen, such as, a gesture of hand, finger, stylus, motion, etc. In other embodiments, a touch screen is a screen that recognizes a gesture from actually touching the screen. FIG. 1 is an embodiment of a diagram depicting a gesture for triggering calculating measurement of an angle using a touch screen. In FIG. 1, an embodiment of an arc or a line drawn from one line of the angle to the other is depicted. As shown in FIG. 1, the user gestures an arc or a line from line AC to line AB or from AB to line AC to calculate angle CAB or BAC. While lines AC and AB are shown as touching (e.g., meeting at point A) in the depicted embodiment, it is understood that in other embodiments, such lines forming an angle need not necessarily touch.
FIG. 2 is an embodiment of a diagram depicting a calculation of the angle of FIG. 1. As shown in FIG. 2, a method or system coupled to the touch screen recognizes the gesture and computes the angle's measurement, which is shown in FIG. 2 to be 56.4°.
In accordance with a further aspect of the present disclosure, a user utilizing a touch screen provides a gesture by sliding a finger, a pointer or the likes across a segment. FIG. 3 is an embodiment of a diagram depicting a gesture for triggering calculating measurement of a segment's length using a touch screen. In FIG. 3, an embodiment of a line drawn across a segment is depicted. As shown in FIG. 3, the user gestures a line crossing segment DE to calculate the measurement of segment DE.
FIG. 4 is an embodiment of a diagram depicting a calculation of the segment of FIG. 3. As shown in FIG. 4, a method or system coupled to the touch screen recognizes the gesture and computes the measurement of the segment from the segment's beginning point to its end point, which is shown in FIG. 4 to be 7.17 cm.
FIG. 5 is an embodiment of a flow diagram of a gesturing method 500 for processing gestures to cause computation of measurements of an angle or a segment using a touch system. The method starts at step 502 and proceeds to step 504, wherein the method 500 determines the shape of the gesture. At step 506, the method 500 determines if the gestured shape is an arc or line between two touching lines. As stated above, in some embodiments, the two lines need not necessarily be touching. If a gestured arc or line is between two such lines, then the method 500 proceeds to step 508, wherein the angle between the lines and behind the arc or line is calculated. Otherwise, the method 500 proceeds to step 510.
At step 510, the method 500 determines if the gestured shape is a line that intersects a segment (e.g., one line as opposed to two lines). If it is, then the method 500 proceeds to step 512, wherein the measurement between the beginning point and the end point of the segment is calculated. Otherwise, the method 500 proceeds to step 516. From steps 508 and 512, the method 500 proceeds to step 514, wherein the calculated measurements are displayed and the method 500 proceeds to step 516. The method 500 ends at step 516.
FIG. 6 is an embodiment of a gesture system diagram that performs or otherwise utilizes the method of FIG. 5. The gesture system comprises a processor, a gesture module and a touch screen. The processor is capable of executing instructions to perform functions, such as, calculating measurements, determining gestures from a touch screen, and the like. The gesture module performs a method such as the method 500 of FIG. 5. The touch screen is coupled to the processor directly, indirectly or wirelessly to facilitate gesture recognition and/or determination by the gesture system.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

## Claims

1. A method for initiating a measurement calculation of one or more lines displayed on a touch screen display of a processor-based system, the method comprising:
receiving a gesture input using the touch screen display;
using a processor of the processor-based system to determine a gesture shape indicated by the gesture input;
using the processor to determine the number of lines of the one or more lines that are selected by the gesture input, wherein each selected line of the one or more lines is indicated by the gesture shape touching the selected line, wherein touching the selected line comprises intersecting the selected line;
when the number of selected lines is one, using the processor to identify a beginning point and an end point of the one selected line, calculate a measurement of length between the beginning point and the end point of the one selected line, and display the calculated measurement of the length on the touch screen display; and
when the number of selected lines is two, using the processor to identify an angle formed between the two selected lines, calculate an angle measurement of the angle, and display the calculated angle measurement on the touch screen display.

2. The method of claim 1, wherein, when the number of selected lines is two, the two selected lines touch at a common point.

3. The method of claim 1, wherein, when the number of selected lines is two, the two selected lines do not touch each other.

4. The method of claim 1, wherein, when the number of selected lines is two, the calculated angle measurement is displayed on the touch screen display in close proximity to the two selected lines of the displayed one or more lines.

5. The method of claim 1, wherein, when the number of selected lines is one, the calculated measurement of length is displayed on the touch screen display in close proximity to the one selected line of the displayed one or more lines.

6. The method of claim 1, wherein the one or more lines is displayed on the touch screen display when the gesture input is received.

7. The method of claim 1, wherein the gesture shape is an arc.

8. The method of claim 1, wherein the gesture shape is a line.

9. A system comprising:
a touch screen display configured to display one or more lines and having a touch screen configured to receive a gesture input;
a processor communicatively coupled to the touch screen, the processor being configured to process a received gesture input; and
a memory communicatively coupled to the processor and storing program instructions that, when executed by the processor, cause the processor to:
determine a gesture shape indicated by the received gesture input;
determine the number of lines of the displayed one or more lines that are selected by the gesture input, wherein each selected line of the geometric element is indicated by the gesture shape touching the selected line, wherein touching the selected line comprises intersecting the selected line;
when the number of selected lines is one, identify a beginning point and an end point of the one selected line, calculate a length measurement between the beginning point and the end point of the one selected line, and display the calculated measurement of the length on the touch screen display; and
when the number of selected lines is two, using the processor to identify an angle formed between the two selected lines, calculate an angle measurement of the angle, and display the calculated angle measurement on the touch screen display.

10. The system of claim 9, wherein, when the number of selected lines is two, the two selected lines touch at a common point.

11. The system of claim 9, wherein, when the number of selected lines is two, the two selected lines do not touch each other.

12. The system of claim 9, wherein, when the number of selected lines is two, the calculated angle measurement is displayed on the touch screen display in close proximity to the two selected lines of the displayed one or more lines.

13. The system of claim 9, wherein, when the number of selected lines is one, the calculated length measurement is displayed on the touch screen display in close proximity to the one selected line of the displayed one or more lines.

14. The system of claim 9, wherein the one or more lines is displayed on the touch screen display when the gesture input is received.

15. The system of claim 9, wherein the gesture shape is an arc.

16. The system of claim 9, wherein the gesture shape is a line.