Drawing content processing method and device for terminal apparatus, and terminal apparatus

• US 11,182,936 B2
• Filed: 08/14/2019
• Issued: 11/23/2021
• Est. Priority Date: 10/24/2018
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Zhang, Weihua, Liu, Shilei
• Primary Examiner(s): Adams, Carl
• Application Number:
  US16/540,637
• Publication Number:
  US 20200134890A1
• Time in Patent Office: 832 Days
• Field of Search: None
• CPC Class Codes: G06F 2203/04101 2.5D-digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface and also measures the distance of the input means within a short range in the Z direction, possibly with a separate measurement setup
• CPC Class Codes: G06F 2203/04806 Zoom, i.e. interaction techniques or interactors for controlling the zooming operation
• CPC Class Codes: G06F 3/03545 Pens or stylus
• CPC Class Codes: G06F 3/04842 Selection of displayed objects or displayed text elements G06F3/0482 takes precedence
• CPC Class Codes: G06F 3/04845 for image manipulation, e.g. dragging, rotation, expansion or change of colour
• CPC Class Codes: G06F 3/0488 using a touch-screen or digitiser, e.g. input of commands through traced gestures
• CPC Class Codes: G06T 11/203 Drawing of straight lines or curves
• CPC Class Codes: G06T 11/60 Editing figures and text; Combining figures or text
• CPC Class Codes: G06T 2200/24 involving graphical user interfaces [GUIs]

Abstract

The present disclosure provides drawing content processing method and device for a terminal apparatus. The method includes positioning a drawing focus of a user based on a drawing operation of the user and processing drawing content displayed on a screen of the terminal apparatus based on the positioned drawing focus.

Claims

1. A method by a terminal apparatus, comprising:

identifying a drawing focus based on a drawing operation;

positioning the drawing focus on a canvas; and

processing drawing content to be displayed on a screen based on the drawing focus,

wherein the drawing focus is a logical region or position which is drawn in the canvas,

wherein the drawing focus is identified based on another drawing focus preceding the drawing focus, and

wherein another drawing focus preceding the drawing focus is at least one of;

a drawing focus drawing the content in the last time, or

a drawing focus before an operation of raising an input device when an operation of lowering the input device occurs after the operation of raising the input device.

2. The method of claim 1, wherein the drawing operation comprises at least one of an operation of selecting the drawing focus, the operation of lowering the input device, and an operation of hovering the input device, and

wherein the processing of the drawing content comprises at least one of zooming-in, zooming-out, moving a display position of the drawing focus, and displaying drawing reference information.

3. The method of claim 2, wherein the zooming-in is triggered based on at least one of an operation of modifying parameters of the input device,

wherein the parameters of the input device include at least one of an input device type, a line type, line color and texture information, information about the drawing content corresponding to the drawing focus, a distance from the input device to the terminal apparatus, a speed of bringing the input device down, a size of the screen, and an instruction for the zooming-in, and

wherein the zooming-out is triggered based on at least one of an operation of raising the input device, an instruction for the zooming-out, processing information of the drawing content corresponding to the drawing focus, the distance from the input device to the terminal apparatus, a speed of raising the input device, and the size of the screen.

4. The method of claim 2, wherein the processing of the drawing content further comprises switching between drawing objects, and

wherein the switching between the drawing objects is triggered based on at least one of an operation of raising the input device, an instruction, similarity between the drawing objects, a display position of each of the drawing objects, and processing information of the drawing content corresponding to the drawing focus.

5. The method of claim 4, wherein each of the drawing objects is identified based on at least one of:

a distance between the drawing objects corresponding to the drawing focus, similarity between the drawing objects corresponding to the drawing focus and an instruction.

6. The method of claim 2, wherein the processing of the drawing content further comprises adjusting a resolution of the drawing content, and

wherein the adjusting the resolution of the drawing content is triggered based on at least one of a change in a zoom scale of the canvas and an instruction.

7. The method of claim 2, wherein the processing of the drawing content further comprises expanding the canvas including the drawing content, and

after expanding the canvas, fitting the drawing content in the expanded canvas according to a drawing trajectory of the input device in the canvas and a motion trend of the input device.

8. The method of claim 1, wherein the drawing focus is further identified based on information about the drawing content within a local region of a mapping position of the input device on the screen comprising at least one of:

thickness information for lines in the drawing content, density information for the lines in the drawing content, shape information for the lines in the drawing content, color information for the lines in the drawing content, texture information for the drawing content, and border information for the drawing content.

9. The method of claim 8, wherein the moving the display position of the drawing focus comprises:

moving the drawing focus to a preset position on the screen for displaying; and

/or

moving the display position of the drawing focus to correspond to the mapping position of the input device on the screen.

10. A terminal apparatus, comprising:

a display; and

at least one processor configured to;

identify a drawing focus based on a drawing operation;

position the drawing focus on a canvas; and

process drawing content to be displayed on a screen based on the drawing focus,

wherein the drawing focus is a logical region or position which is drawn in the canvas,

wherein the drawing focus is identified based on another drawing focus preceding the drawing focus, and

wherein another drawing focus preceding the drawing focus is at least one of;

a drawing focus drawing the content in the last time, or

a drawing focus before an operation of raising an input device when an operation of lowering the input device occurs after the operation of raising the input device.

11. The terminal apparatus of claim 10, wherein the drawing operation comprises at least one of an operation of selecting the drawing focus, the operation of lowering the input device, and an operation of hovering the input device, and

wherein the processing of the drawing content comprises at least one of zooming-in, zooming-out, moving a display position of the drawing focus, and displaying drawing reference information.

12. The terminal apparatus of claim 11, wherein the zooming-in is triggered based on at least one of an operation of modifying parameters of the input device,

wherein the parameters of the input device include at least one of an input device type, a line type, line color and texture information, information about the drawing content corresponding to the drawing focus, a distance from the input device to the terminal apparatus, a speed of bringing the input device down, a size of the screen, and an instruction for the zooming-in, and

wherein the zooming-out is triggered based on at least one of an operation of raising the input device, an instruction for the zooming-out, processing information of the drawing content corresponding to the drawing focus, the distance from the input device to the terminal apparatus, a speed of raising the input device, and the size of the screen.

13. The terminal apparatus of claim 11, wherein the processing of the drawing content further comprises switching between drawing objects, and

wherein the switching between the drawing objects is triggered based on at least one of an operation of raising the input device, an instruction, similarity between the drawing objects, a display position of each of the drawing objects, and processing information of the drawing content corresponding to the drawing focus.

14. The terminal apparatus of claim 13, wherein each of the drawing objects is identified based on at least one of:

a distance between the drawing objects corresponding to the drawing focus, similarity between the drawing objects corresponding to the drawing focus, and an instruction.

15. The terminal apparatus of claim 11, wherein the processing of the drawing content further comprises adjusting a resolution of the drawing content, and

wherein the adjusting the resolution of the drawing content is triggered based on at least one of a change in zoom scale of the canvas and an instruction.

16. The terminal apparatus of claim 11, wherein the processing of the drawing content further comprises expanding the canvas including the drawing content, and

wherein the at least one processor is further configured to:

after expanding the canvas, fit the drawing content in the expanded canvas according to a drawing trajectory of the input device in the canvas and a motion trend of the input device.

17. The terminal apparatus of claim 10, wherein the drawing focus is further identified based on information about the drawing content within a local region of a mapping position of the input device on the screen comprising at least one of:

thickness information for lines in the drawing content, density information for the lines in the drawing content, shape information for the lines of the drawing content, color information for the lines in the drawing content, texture information for the drawing content, and border information for the drawing content.

18. The terminal apparatus of claim 17, wherein the moving the display position of the drawing focus comprises:

moving the drawing focus to a preset position on the screen for displaying; and

/or

moving the display position of the drawing focus to correspond to the mapping position of the input device on the screen.