Segment length measurement using a touch screen system in response to gesture input

Abstract

Disclosed embodiments relate to processing of gestures to cause computation of measurements of a line using a touch screen. A 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 and whether the gesture shape selects a first line segment by intersecting the first line segment. When the gesture shape selects a first line segment, it is then determined whether the gesture shape also selects an additional line segment different from the first line segment. When an additional line segment is not selected, the method calculates the length measurement from the beginning point of the segment to the end point of the selected first line segment. The method further displays the length measurement on a display.

Description

BACKGROUND

Technical Field

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

Embodiments of the present invention relate to a method and a system for processing gestures to cause computation of measurements of a line 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 and whether the gesture shape selects a first line segment by intersecting the first line segment. When the gesture shape selects a first line segment, it is then determined whether the gesture shape also selects an additional line segment different from the first line segment. When an additional line segment is not selected, the method calculates the length measurement from the beginning point of the segment to the end point of the selected first line segment. The method further displays the length measurement on a display.

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 a 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 like 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 system comprising: a touch screen display for displaying at least one line segment and having a touch screen for receiving a gesture input;a processor communicatively coupled to the touch screen; anda 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 gesture input;determine whether the gesture input selects a first line segment displayed on the touch screen display, wherein selection of the first line segment is indicated by the gesture shape intersecting the first line segment;when the gesture input selects the first line segment, determine whether the gesture input selects a second line segment displayed on the touch screen display, wherein selection of the second line segment is indicated by the gesture shape intersecting the second line segment; andwhen the gesture input does not select a second line segment, determine a beginning point and an end point of the selected first line segment, determine a length measurement between the beginning point and the end point, and display the determined length measurement on the touch screen display.

2. The system as claimed in claim 1, wherein the gesture shape is an arc.

3. The system as claimed in claim 1, wherein the gesture shape is a line.

4. The system as claimed in claim 1, wherein the determined length measurement is displayed on the touch screen display in close proximity to the selected first line segment.

5. The system as claimed in claim 1, wherein the program instructions, when executed by the processor, further cause the processor to: when the gesture input does select a second line segment displayed on the touch screen display, identify an angle formed between the selected first line segment and the selected second line segment, determine an angle measurement of the angle, and display the determined angle measurement on the touch screen display.

6. The system as claimed in claim 5, wherein the determined angle measurement is displayed on the touch screen display in close proximity to the angle.

7. A method for initiating a measurement calculation of a line segment displayed on a touch screen display of a processor-based system, the method comprising: using the touch screen display to receive a gesture input;using a processor of the processor-based system to determine a gesture shape indicated by the gesture input;using the processor to determine whether the gesture input selects the line segment, wherein selection of the line segment is indicated by the gesture shape intersecting the line segment;when the line segment is selected by the gesture shape, using the processor to determine whether the gesture input selects at least one other line segment displayed on the touch screen display, wherein selection of the at least one other line segment is indicated by the gesture shape also intersecting the at least one other line segment; andwhen the gesture input does not select at least one other line segment displayed on the touch screen display, using the processor to identify a beginning point and an end point of the selected line segment, determine a length measurement between the beginning point and the end point, and display the determined length measurement on the touch screen display.

8. The method as claimed in claim 7, wherein the gesture shape is an arc.

9. The method as claimed in claim 7, wherein the gesture shape is line.

10. The method as claimed in claim 7, wherein the determined length measurement is displayed on the touch screen display in close proximity to the selected line segment.

11. The method as claimed in claim 7, comprising, when the gesture input selects one other line segment displayed on the touch screen display, using the processor to identify an angle formed between the selected line segment and the selected one other line segment, determine an angle measurement of the angle, and display the determined angle measurement on the touch screen display.

12. The method as claimed in claim 11, wherein the determined angle measurement is displayed on the touch screen display in close proximity to the angle.

13. A non-transitory computer-readable medium comprising instructions, that when executed by a processor, cause the processor to: determine a gesture shape indicated by a gesture input received by a touch screen display;determine whether the gesture input selects a first line segment displayed on the touch screen display, wherein selection of the first line segment is indicated by the gesture shape intersecting the first line segment;when the gesture input selects the first line segment, determine whether the gesture input selects a second line segment displayed on the touch screen display, wherein selection of the second line segment is indicated by the gesture shape intersecting the second line segment; andwhen the gesture input does not select a second line segment, determine a beginning point and an end point of the selected first line segment, determine a length measurement between the beginning point and the end point, and display the determined length measurement on the touch screen display.

14. The non-transitory computer-readable medium as claimed in claim 13, wherein the gesture shape is an arc.

15. The non-transitory computer-readable medium as claimed in claim 13, wherein the gesture shape is a line.

16. The non-transitory computer-readable medium as claimed in claim 13, wherein the instructions cause the processor to display the determined length measurement on the touch screen display in close proximity to the selected first line segment.

17. The non-transitory computer-readable medium as claimed in claim 13, wherein the instructions, when executed by the processor, further cause the processor to: when the gesture input does select a second line segment displayed on the touch screen display, identify an angle formed between the selected first line segment and the selected second line segment, determine an angle measurement of the angle, and display the determined angle measurement on the touch screen display.

18. The non-transitory computer-readable medium as claimed in claim 17, wherein the instructions cause the processor to display the determined angle measurement on the touch screen display in close proximity to the angle.