CN110069205A - Writing track adjusting method and device, terminal equipment and storage medium - Google Patents

Abstract

The embodiments of the present invention disclose a method, a device, a terminal device and a storage medium for adjusting a writing track. The method includes: by receiving a first touch operation acting on at least one writing track; in response to the first touch operation, determining a writing track group including at least two writing tracks, the at least two writing tracks including the first touch operation The selected writing tracks have at least one preset logical relationship with each other; the second touch operation is received; and the display of the writing track group is adjusted in response to the second touch operation. By selecting at least one writing track, and then determining a writing track group according to a plurality of writing tracks having at least one preset logical relationship, the writing tracks in the writing track group respond synchronously to the adjustment operation on the writing track. In the adjustment process, multiple writing tracks can be accurately selected from all the writing tracks in one operation. The batch selection process is simple to operate and has high selection accuracy.

Description

A method, device, terminal device and storage medium for adjusting writing trajectory

technical field

Embodiments of the present invention relate to the technical field of intelligent interactive tablets, and in particular, to a method, a device, a terminal device and a storage medium for adjusting a writing trajectory.

Background technique

With the development of intelligent technology, the types of electronic products that people come into contact with in daily life are becoming more and more abundant. Among them, interactive electronic products based on touch technology show a trend of more and more comprehensive function integration because of the good human-computer interaction experience. The intelligent interactive tablet is one of the representative integrated devices, which is suitable for group interaction occasions such as conferences, teaching, and commercial exhibitions. This device integrates various functions such as projectors and video conferences, which can effectively improve the communication environment and present Multi-modal content to improve the efficiency of group communication.

As an important function of the intelligent interactive tablet, handwriting input realizes the interactive digital solution of written expression, information display and data storage in group communication. The batch adjustment process of writing trajectories is generally done by hitting multiple writing trajectories in sequence, or you need to select a specific circle control first, and then select all the hand-drawn closed areas according to the distribution of the writing trajectories that need to be adjusted; Repeated operations multiple times. For the circle selection method, it is necessary to adapt to the distribution of writing tracks for drawing, so as to avoid missed or wrong selections. Generally speaking, the batch selection of some writing tracks in the prior art is cumbersome and the selection accuracy is not high.

SUMMARY OF THE INVENTION

The present invention provides a method, device, terminal device and storage medium for adjusting writing trajectories, so as to solve the technical problems of complicated batch selection of partial writing trajectories and low selection accuracy in the prior art.

In a first aspect, an embodiment of the present invention provides a method for adjusting a writing trajectory, including:

receiving a first touch operation acting on at least one writing track;

In response to the first touch operation, a writing track group including at least two writing tracks is determined, the at least two writing tracks include the writing track selected by the first touch operation, and there is at least one preset to each other. set logical relationship;

receiving a second touch operation;

In response to the second touch operation, the display of the writing track group is adjusted.

The first touch operation includes at least one touch point, the touch duration of the at least one touch point satisfies the first setting, and the distance between the at least one touch point and the at least one writing track within the first setting range.

Wherein, the touch point of the second touch operation is received within the circumscribed rectangle of the writing track group.

Wherein, the circumscribed rectangle is covered with a transparent mask.

Wherein, the method further includes:

receiving a third touch operation outside the circumscribed rectangle;

In response to the third touch operation, switching to the writing mode.

Wherein, the logical relationship includes a spatial inclusion relationship, a position combination relationship, and a space-time relationship.

The second touch operation includes a single-finger drag gesture, a two-finger pan gesture, a multi-finger zoom gesture, and a two-finger rotation gesture.

In a second aspect, an embodiment of the present invention also provides a device for adjusting a writing trajectory, including:

a first receiving unit for receiving a first touch operation acting on at least one writing track;

a first response unit, configured to determine a writing track group including at least two writing tracks in response to the first touch operation, the at least two writing tracks including the writing track selected by the first touch operation, And there is at least one preset logical relationship with each other;

a second receiving unit, configured to receive a second touch operation;

A second response unit, configured to adjust the display of the writing track group in response to the second touch operation.

The first touch operation includes at least one touch point, the touch duration of the at least one touch point satisfies the first setting, and the distance between the at least one touch point and the at least one writing track within the first setting range.

Wherein, the touch point of the second touch operation is received within the circumscribed rectangle of the writing track group.

Wherein, the circumscribed rectangle is covered with a transparent mask.

Wherein, the device also includes:

a third receiving unit, configured to receive a third touch operation outside the circumscribed rectangle;

The third response unit is configured to switch to the writing mode in response to the third touch operation.

Wherein, the logical relationship includes a spatial inclusion relationship, a position combination relationship, and a space-time relationship.

The adjustment gestures include a single-finger drag gesture, a two-finger pan gesture, a multi-finger zoom gesture, and a two-finger rotation gesture.

In a third aspect, an embodiment of the present invention further provides a terminal device, including:

one or more processors;

memory for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors implement the method for adjusting a writing track according to any one of the first aspect.

In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, implements the method for adjusting a writing trajectory according to any one of the first aspect.

The above-mentioned method, device, terminal device and storage medium for adjusting a writing track, by receiving a first touch operation acting on at least one writing track; in response to the first touch operation, determining a writing track including at least two writing tracks group, the at least two writing tracks include writing tracks selected by the first touch operation, and have at least one preset logical relationship with each other; receive a second touch operation; respond to the second touch control operation to adjust the display of the writing track group. At least one writing track is selected through a touch operation, and then a writing track group is determined according to a plurality of writing tracks that have at least one preset logical relationship with the selected writing track, and the writing tracks in the writing track group synchronously respond to the writing track. Adjustment action. In the adjustment process, multiple writing tracks can be accurately selected from all the writing tracks in one operation. The batch selection process is simple to operate and has high selection accuracy. At the same time, the adjustment operation and exit operation based on the circumscribed rectangle of the writing track group are convenient for subsequent operations after selection, and both adjustment and exit can be conveniently realized.

Description of drawings

1 is a flowchart of a method for adjusting a writing trajectory according to Embodiment 1 of the present invention;

2 is a schematic diagram of a touch input interface of an intelligent interactive tablet according to Embodiment 1 of the present invention;

3 is a schematic diagram of an effective touch point, a target writing track, and an associated writing track in Embodiment 1 of the present invention;

4 is a schematic diagram of a writing track entering a selected state in Embodiment 1 of the present invention;

5 is a flowchart of a method for adjusting a writing trajectory according to Embodiment 2 of the present invention;

6-10 are schematic diagrams of adjustment changes of Example 1 provided in Embodiment 2 of the present invention;

11-13 are schematic diagrams of adjustment changes of Example 2 provided in Embodiment 2 of the present invention;

14-16 are schematic diagrams of adjustment changes of Example 3 provided in Embodiment 2 of the present invention;

17-21 are schematic diagrams of adjustment changes of Example 4 provided in Embodiment 2 of the present invention;

22 is a schematic structural diagram of a device for adjusting a writing trajectory according to Embodiment 3 of the present invention;

FIG. 23 is a schematic structural diagram of a terminal device according to Embodiment 4 of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all structures related to the present invention.

Example 1

FIG. 1 is a flowchart of a method for adjusting a writing track according to Embodiment 1 of the present invention. The method for adjusting the writing track provided in the embodiment may be performed by a device for adjusting the writing track, and the device for adjusting the writing track may be implemented by means of software and/or hardware, and the device for adjusting the writing track may be two or more physical devices. Entity composition can also be a physical entity composition. For example, the device for adjusting the writing track may be a mobile phone, an industrial control computer, or the like.

For ease of understanding, the embodiment takes the intelligent interactive tablet as the actual carrier, and exemplarily describes the detailed process of adjusting the target selection, association and adjusting response when the method for adjusting the writing trajectory is implemented. Among them, the intelligent interactive tablet can be an integrated device that controls the content displayed on the display panel and realizes human-computer interaction through touch technology. One or more functions such as terminal.

Generally speaking, an intelligent interactive tablet includes at least one display screen. For example, an intelligent interactive tablet is equipped with a display screen with a touch function, and the display screen can be a capacitive screen, a resistive screen or an electromagnetic screen. In this embodiment, an intelligent interactive tablet is provided. Further, the user can touch the display screen by means of a finger or a stylus to realize a touch operation. Correspondingly, the intelligent interactive tablet 1 detects the touch position, and according to the touch The control position responds to realize the touch function. Typically, the smart interactive tablet is installed with at least one operating system, wherein the operating system includes but is not limited to the Android system, the Linux system, and the Windows system. Further, at least one application program with a writing function can be installed on the intelligent interactive tablet. The application program may be an application program that comes with the operating system, and at the same time, an application program downloaded from a third-party device or server is also installed. Optionally, in addition to the writing function, the application program also has other editing functions, such as functions such as inserting tables, inserting pictures, illustrating graphics, drawing tables, and drawing graphics. Wherein, the drawn table or graph is a standard element drawn by a computer. The computer-drawn standard elements can be understood as the print standard elements drawn by the intelligent interactive tablet, which are different from the elements written by the user.

Specifically, referring to FIG. 1 , the method for adjusting the writing track specifically includes:

Step S101 , receiving a first touch operation acting on at least one writing track.

On the touch screen configured with smart handwriting devices such as electronic whiteboards, electronic blackboards, digital boards, and smart conference tablets, there is a writing area for displaying the input content in response to the user's writing operation. When writing in this writing area, for example, by touching A pen or finger touches the touch screen, and the touch screen can sense changes in infrared rays, currents, voltages or magnetic fluxes (corresponding to the specific setting types of infrared touch screens, capacitive touch screens, resistive touch screens or electromagnetic touch screens) to obtain The touch signal containing the coordinates of the touch position and the trigger time of the touch signal, according to the coordinates of the touch position and the trigger time of the touch signal, the input value of the touch pen or the user's finger can be obtained every time it is pressed to write until it is lifted to stop writing. The track data of the writing track, according to the track data, the writing track input by the user is displayed in real time in the writing area of the touch screen. Of course, the writing process is not limited to writing, and any input process implemented on the touch screen of the smart handwriting device for displaying the operation track can be regarded as a writing process. The implementation of this solution is to operate on the existing writing track.

On a touch screen, there are generally three results in response to a touch operation. The first is to respond to the trace data corresponding to the touch operation as a writing trace as described above. This is the most common and relatively simple. , generally speaking, the normal movement of a single touch point is regarded as the input of the writing trajectory; the second is to compare the number, time and/or trajectory characteristics of the touch points when the touch operation occurs. If a setting operation matches, a certain function corresponding to the setting operation will be triggered, such as pop-up menu, target selection, etc. The third type is complex unconventional operation, such as random movement when two hands and ten fingers touch, this method may If it can neither handle the input of the writing track nor match the pre-stored setting operation, it will not respond to this touch operation. In this solution, if the user's touch operation belongs to the second type and matches the pre-stored setting operation for hitting the writing track, it is confirmed that the triggering of the writing track hit by the touch operation is detected.

For example, in Figure 3, the three words "creative" have been composed of multiple writing trajectories. If the finger in it slides freely on the display interface of "creative", a new writing trajectory will be formed on the display interface; If the reception of the first touch operation is completed at the position shown in FIG. 3 , it is confirmed that the “W” pointed by the finger is confirmed as the writing track of the first touch operation. Here, "creativity" is mainly the result of human eye text recognition. In the actual underlying processing, each writing track can be simply recorded as the coordinate data of multiple pixels. The intelligent interactive tablet itself only draws on the display page according to the coordinate data. Multiple writing trajectories can be generated without identifying the substantive content of the combination of these writing trajectories. When rendering the writing track based on pixel points, the pixel points are drawn according to the saved coordinate data, and based on the smooth curve drawing scheme such as Bezier curve, the complete picture recognized by the human eye can be obtained by drawing on the basis of the drawn pixel points. The writing track, based on the drawing method, can effectively reduce the storage space requirement of the writing track and improve the rendering speed of the writing track.

It should be noted that the writing track shown in FIG. 3 is detected and displayed by, for example, the intelligent interactive tablet 1 shown in FIG. 2 . In this embodiment and subsequent embodiments, for the convenience of description, the writing track is not added to It is displayed in the intelligent interactive tablet 1, but the implementation process of this solution is described by the relative changes between the writing tracks.

Step S102, in response to the first touch operation, determine a writing track group including at least two writing tracks, the at least two writing tracks including the writing track selected by the first touch operation, and mutually existing at least A preset logical relationship.

For group interaction scenarios, when users need to perform batch processing, it is usually an ordered combination of writing trajectories. The standard of this ordered combination is described here as a logical association relationship. According to different dimensions, the logical association relationship can be as follows: Spatial inclusion relationship, position combination relationship, space-time relationship, etc. For example, when the focus of writing needs to be emphasized, a closed figure is drawn outside the focus of writing, and the closed figure has a spatial inclusion relationship with its internal writing track; for example, when continuous handwriting input is required based on a preset shape (table, etc.) , there is a positional combination relationship between the writing track that composes the preset shape and the writing track that is continuously input based on this; for example, when writing a paragraph or drawing a picture continuously, based on the time of two adjacent writing tracks during the writing or drawing process The relationship established by the relationship and the distance relationship is called the space-time correlation relationship. In the writing track that constitutes "creativeness" in Figure 3, between any two temporally adjacent writing tracks, the time relationship and distance relationship are very close. "There is a spatiotemporal relationship between the corresponding writing trajectories.

During the initial processing of the track data for the writing track, the writing track with the space-time relationship has been associated and saved in the same container, and the container can be specifically maintained by an array, a set or a dictionary. If an array or collection is used for maintenance, each group of associated writing tracks can be saved through an array or collection respectively. That is to say, if there are multiple groups of associated writing tracks in the currently displayed page, it is necessary to maintain the same number of arrays Or collections, that is, a page needs to maintain multiple arrays or collections. If a dictionary is used, one dictionary can be maintained for each display page, and a set of associated writing tracks in one display page can be saved to one page in the dictionary. In this solution, corresponding to the associated maintenance strategy of the discrete writing tracks in the display page, the dictionary is used as the data structure to realize this maintenance, which can effectively reduce the complexity of writing track data maintenance, and the realization of the underlying data processing process is simpler.

Fig. 3 shows all the writing tracks contained in a container, and the circumscribed rectangle 11 of the writing track in the container is shown in the figure. It should be noted that the circumscribed rectangle 11 in Fig. 3 is only for showing the writing track maintained in a container In the writing state, the circumscribed rectangle 11 is not displayed on the display screen.

Different types of writing tracks can be maintained in different ways. For a closed figure and a preset shape, they can be integrated into a single writing track to exist independently. For closed graphics (such as circles, rectangles, squares, etc.) and preset shapes (pentagrams), the preservation of the writing track is not only based on the isolated preservation of multiple writing tracks, but the preservation of the graphics as a whole. The overall graphics with special shape characteristics can be saved and drawn based on a few pixels, reference points and/or graphics parameters. For example, the saving of a circle does not save the coordinate data of multiple pixels on the arc, but Save the coordinate data and radius of the center of the circle.

After the writing track of the first touch operation is confirmed, further confirm all its existing logical relationships. If the writing track is an ordinary text input or drawing track, its logical relationship usually only has a space-time relationship; if the target If the track is a closed figure or a set shape, its logical relationship may involve writing tracks in one or more containers. In this case, a writing track group includes at least one overall saved writing track and multiple associated containers. writing track in .

After the writing track group is confirmed, the current display screen suspends the response to touch input, and the writing track in the writing track group can be highlighted relative to the writing track outside the writing track group. The control operation preferentially responds to the writing tracks in the writing track group, so as to realize batch adjustment of the writing tracks.

Step S103, receiving a second touch operation.

If the writing track hit by the first touch operation is an ordinary text input or drawing track, then the writing track in the final confirmed writing track group is the writing track (there is no space-time relationship) or the container where the writing track is located. of all writing trajectories. If the writing track hit by the first touch operation is a closed figure, then the writing track in the finally confirmed writing track group is the closed figure and the writing track in the container that intersects with the closed closed range. If the writing track hit by the first touch operation is the set shape, then the writing track in the finally confirmed writing track group is the set shape and the writing track in the container combined with the set shape existing position.

Step S104 , adjusting the display of the writing track group in response to the second touch operation.

Commonly used batch adjustment gestures, such as single-finger drag gesture, two-finger pan gesture, multi-finger zoom gesture, and two-finger rotation gesture, etc., the gesture operation for determining the target is mostly realized in the intelligent interactive tablet, and will not be repeated here. During the specific adjustment, there may be two ways of setting the adjustment operation area to detect the adjustment gesture. One is to perform gesture detection at any position on the current display interface, confirm the specific adjustment content according to the detected gesture, and synchronously feed back the specific adjustment content (movement distance, direction, zoom ratio, rotation angle, etc.) to the writing track group. The writing track completes batch adjustment. The other is to perform gesture detection in the area covered by the writing track in the writing track group, and form the effect of directly operating the target writing track and the associated writing track from the display. In the two methods, the underlying confirmation mechanism of the gesture detection corresponding to the specific adjustment parameters, and the change mechanism of the display effect of the writing track in response to the adjustment parameters are the same.

The state shown in FIG. 4 is the state in FIG. 3 according to the first touch operation received in step S101 , and the writing track in the writing track group confirmed based on the first touch operation is highlighted in FIG. 4 , and the highlighted display The area in the writing track group is the circumscribed rectangle 11 of all the writing tracks in the writing track group. Specifically, the projection of the writing track can be added, and the floating display effect relative to other regions is set for the writing track. The circumscribed rectangle in FIG. 4 is only used to indicate the highlighted range, not the way it is highlighted. Correspondingly, the area where the circumscribed rectangle is located can be used as an adjustment operation area, and the second touch operation is detected in this area and the relevant writing track is controlled to perform synchronous adjustment.

In the above, by receiving a first touch operation acting on at least one writing track; in response to the first touch operation, a writing track group including at least two writing tracks is determined, and the at least two writing tracks include the first writing track. A writing track selected by a touch operation has at least one preset logical relationship with each other; a second touch operation is received; and the display of the writing track group is adjusted in response to the second touch operation. At least one writing track is selected through a touch operation, and then a writing track group is determined according to a plurality of writing tracks that have at least one preset logical relationship with the selected writing track, and the writing tracks in the writing track group synchronously respond to the writing track. Adjustment action. In the adjustment process, multiple writing tracks can be accurately selected from all the writing tracks in one operation. The batch selection process is simple to operate and has high selection accuracy. At the same time, the adjustment operation and exit operation based on the circumscribed rectangle of the writing track group are convenient for subsequent operations after selection, and both adjustment and exit can be conveniently realized.

Embodiment 2

FIG. 5 is a flowchart of a method for adjusting a writing track according to Embodiment 2 of the present invention. This embodiment is embodied on the basis of the above-mentioned embodiment.

Specifically, referring to FIG. 5 , the method for adjusting the writing track provided in this embodiment specifically includes:

Step S201 , receiving a first touch operation acting on at least one writing track.

In the implementation of this solution, the touch point detected in the first touch operation will not cause the display screen to change, but will trigger the batch adjustment process of the writing track. The first touch operation includes at least one touch point, so The touch duration of the at least one touch point satisfies the first setting, and the distance between the at least one touch point and the at least one writing track is within the first setting range. The number of required touch points is not limited here, and can be selected according to other interactive design solutions, so as to avoid a high false touch rate caused by conflicting operation modes or similar operation modes. For a single touch point, its contact position may not be described by the coordinate data of one coordinate point due to factors such as the contact angle of the finger, the contact strength of the finger or the size of the tip of the smart pen, and its coverage may require multiple coordinate points. It can be described that the position of the corresponding single touch point may be a small area constrained by the coordinate data corresponding to the multiple coordinate points.

In the exemplary description of this embodiment, the confirmation of the first touch operation is mainly described through a touch operation based on a single finger.

Step S202, in response to the first touch operation, determine a writing track group including at least two writing tracks, the at least two writing tracks including the writing track selected by the first touch operation, and mutually existing at least A preset logical relationship.

The display position of the writing track is described by the coordinate data, and the action position of the first touch operation is also described by the coordinate data. If the coordinate data of the first touch operation (the coordinate data of at least one coordinate point) is exactly the same as the coordinate data of a writing track Coincidence or partial coincidence, that is, the position of the first touch operation and the display position of at least one writing track intersect, it is confirmed that the first touch operation acts on the writing track. If there are multiple overlapping input writing tracks within the scope of the first touch operation, it is determined that the lower layer writing track (usually the previously input writing track) is isolated by the upper layer writing track and is not affected by the first touch operation At this point, based on this judgment, the writing track displayed on the top (the last input writing track) is confirmed as the writing track effected by the first touch operation.

If the first touch operation itself does not directly hit the writing track, that is, the coordinate data of the first touch operation does not overlap with the coordinate data of any writing track, then confirm that the writing track is within the preset radius of the first touch operation. If there is a writing track within the preset radius, it is tentatively set as the candidate writing track, and then confirms the writing track displayed on the top layer (ie the last input writing track) from the candidate writing track as the target writing track. Of course, a distance-based confirmation mechanism can also be used from the alternative writing trajectories, that is, it is confirmed that the writing trajectory closest to the first touch operation is the writing trajectory used by the first touch operation.

In the process of the specific embodiment, there is no specific contextual relationship between the judgment within the preset radius and the judgment about the distance (or the top level), but only to determine the constraints of two conditions. For example, the writing track with the closest distance to the first touch operation can be confirmed, and then it can be determined whether the writing track is within the preset radius. The writing track within the preset radius, and then confirm that the nearest writing track is the writing track effected by the first touch operation.

The relative positional relationship between the touch operation and the writing track, in addition to the above two, there are cases where the writing track is outside the preset radius of the touch operation, that is, the touch operation does not have the writing track as a valid target. If the touch operation is regarded as a misoperation, or the touch operation has other interactive definitions, the corresponding interactive response can be executed.

After the writing track of the first touch operation is confirmed, the logical relationship of the writing track is queried from the corresponding data storage structure, and the writing track and the logical relationship between the writing tracks are maintained through an array, a set or a dictionary. After confirming the writing track corresponding to the first touch operation, query the relationship status from the stored writing track, and then add the writing track with a logical relationship and the writing track effected by the first touch operation into the same writing track group. The writing tracks in the same writing track group are highlighted as a whole. In addition to the highlighting of the writing track itself, the area covered by the writing track can also be highlighted. A simple way is to highlight the bounding rectangle corresponding to the writing track and the surrounding area. Overall highlighted.

Step S203, receiving a second touch operation.

The touch point of the second touch operation is received within the circumscribed rectangle of the writing track group. The circumscribed rectangle is covered with a transparent mask. The transparent mask can be a floating layer that can detect touch operations. Only a specific gesture detected in the area covered by it will trigger the operation agreed by the specific gesture. The area covered by the transparent mask is the adjustment operation area. A layer is a visual representation of an area where adjustments are made. The transparent mask layer described in this embodiment is an example limitation. In fact, the transparency of the mask layer can be preset or modified, so as to naturally guide the user's subsequent adjustment operations after the user completes the batch selection of writing tracks Better yet, avoid needing to consult the user manual to perform all operations. For the operation of batch writing trajectories, there is enough operation space for the interaction of adjustment operations within the bounding rectangle, and at the same time, visual interference caused by too large operation space can be avoided.

Of course, in the specific implementation process, adjustment controls can also be added to the four sides and/or four corners of the transparent mask to adjust the coverage of the transparent mask. The adjustment of the coverage can constrain the minimum and maximum values. The minimum value, such as the initial Circumscribed rectangle, the maximum value is for example zoomed in by a certain percentage or a threshold pixel. During the adjustment process of the transparent mask, only the scope of the adjustment operation area is changed, and the initially selected writing track is not changed. The adjustment process is based on the description of the transparency mask, and does not mean that adjustments are made only in the transparency mask.

The second touch operation includes a single-finger drag gesture, a two-finger pan gesture, a multi-finger zoom gesture, and a two-finger rotation gesture. The specific gesture type of the second touch operation is determined by the number of touch points, the overall movement direction, the relative Confirm the direction of movement, etc.

Step S204 , adjusting the display of the writing track group in response to the second touch operation.

In the process of adjusting the writing track in the writing track group, operations such as moving, dragging, zooming, and rotating will bring about changes in display parameters such as display position, display size, and display angle. There will be corresponding changes in the display position, display size, etc., of which the display angle can be adapted in two ways. One is to make the same angle change in response to the rotation operation, and the other is to adapt to the top and bottom of the writing track after the rotation. , the coordinates of the four leftmost and rightmost points, and regenerate the circumscribed rectangle. The four sides of the circumscribed rectangle are still parallel to one coordinate axis in the coordinate system and perpendicular to the other coordinate axis. Correspondingly, the enclosing area of the circumscribed rectangle is is the coverage area of the transparent mask.

Step S205, receiving a third touch operation outside the circumscribed rectangle.

The third touch operation has no specific requirements for the number of touch points, operation duration, and motion trajectory characteristics. In actual operation, operations on areas other than the writing trajectory group are considered to have given up on the writing trajectory. group adjustment.

Step S206, in response to the third touch operation, switch to the writing mode.

If an operation gesture is detected outside the adjustment operation area, it means that the operation gesture has no substantial impact on the batch adjustment of the writing track, the selected state of the writing track is ended, and the transparent mask used to display the adjustment operation area is also cancelled, and the writing The track group as a temporary combination relationship ends here, the detection and response of the second touch operation are no longer performed, and the entirety enters the writing mode before the effective touch point is detected.

The following is an exemplary description of the implementation process and beneficial effects of the solution in specific application scenarios.

Example one:

Example 1 provides the adjustment of the writing trajectory of a single character input in the writing mode, please refer to Figure 6-Figure 10.

In the display screen shown in FIG. 6 , there is only the writing track formed by writing the characters. During the writing process, the writing track confirms the space-time relationship according to the distance relationship and time relationship between the writing tracks, and finally forms as shown in FIG. 6 . The two sets of writing trajectories of the The operation requirement is to eliminate the overlapping of the writing tracks. In the prior art, it is usually only possible to rewrite after all erasing, and to complete the elimination of overlapping by means of correction.

As shown in FIG. 7 , the effective touch point hits the last writing track "one" in the circumscribed rectangle 12, that is, "one" is the target writing track, and the preset logical relationship existing in the current display screen is only a space-time relationship. Therefore, The associated writing tracks of "one" are all writing tracks except "one" in the circumscribed rectangle 12. After confirming the writing tracks selected in batches, all the writing tracks in the circumscribing rectangle 12 are highlighted as a whole. A solid-line circumscribed rectangle 12 is presented, and a transparent mask is set on the circumscribed rectangle to detect the second touch operation, which is a single-finger drag in this example, moving in the direction indicated by the arrow. The writing track in the circumscribed rectangle 11 is not selected, and its display effect does not change.

As shown in FIG. 8 , after the selected writing track is dragged with one finger, the circumscribed rectangle 11 and the circumscribed rectangle 12 are separated from each other, and the overlapping part is eliminated. At the user level, there are only 2 operations from selecting to detaching.

As shown in FIG. 9 , based on the display effect of the writing track after responding to the second touch operation in FIG. 8 , a gesture is detected outside the circumscribed rectangle 12 , that is, a gesture is detected outside the adjustment operation area, and the process goes to FIG. 10 status.

As shown in FIG. 10 , the selected state of the writing track in the circumscribed rectangle 12 ends, and the entire display screen returns to the normal writing mode. Compared with the state in FIG. 6 , the writing track in the circumscribed rectangle 11 and the circumscribed rectangle 12 has been quickly realized. separation, the overlapping part is eliminated.

Example two:

Example 2 provides the adjustment of the writing track in the teaching scenario based on specific application requirements, please refer to Figure 11-Figure 13.

In the display screen shown in Figure 11, a graphic part of a plane geometry problem is displayed. When explaining this type of problem, teachers usually need to disassemble the elements in the graphic. It is to edit the dismantling strategy of the graphics before the class and make the dismantling effect. During the teaching process, it can only be implemented according to the established strategy, and cannot be adjusted according to the actual teaching state.

As shown in Figure 12, there is a temporary need to disassemble △AFC and △CFD in the actual teaching process. At this time, △AFC can be manually drawn in the graphics part in the annotation state (annotation state is a type of writing mode). And form a corresponding writing track. According to the actual drawing method and processing method, the combination of the writing track corresponding to the △AFC can be realized in different ways. After the drawing of △AFC is completed, a valid touch point is detected outside the writing track. Based on the judgment of the distance, the line segment AF is determined as the target writing track, and then the associated writing track (line segment FC and line segment AC) is determined, and it is highlighted as a whole. And drag and drop to achieve temporary dismantling.

As shown in Figure 13, after the dismantling of △AFC is completed, it returns to the annotation state, and continues to disassemble △CFD with reference to the dismantling process of △AFC, and finally △AFC and △CFD can be disassembled outside the original graphics At the same time, the original graphics are kept unchanged to realize flexible and intuitive display of teaching information.

Example three:

Example 3 provides the adjustment of the writing track in the spatial inclusion relationship, please refer to Figure 14-Figure 16.

As shown in FIG. 14 , there are multiple logical relationships. The writing trajectories in the circumscribed rectangle 14 and the circumscribed rectangle 15 are all related in time and space, and the hand-drawn peripheral rectangle 13 has a spatial inclusion relationship with the writing trajectories of the characters therein. This example focuses on the confirmation process of the target writing track and the associated writing track. The collective adjustment process and the selected state ending mechanism are the same as other examples.

As shown in FIG. 15 , the peripheral rectangle 13 hit by the effective touch point, at this time, the peripheral rectangle 13 is regarded as a closed figure, and the writing track that intersects with its enclosed range is regarded as the associated writing track. The writing tracks are all located within the peripheral rectangle 13, and all are regarded as associated writing tracks. That is to say, the selection of the peripheral rectangle 13 in FIG. 14 means that all the writing tracks in FIG. 14 are selected and highlighted, and the subsequent adjustment is also the adjustment of all the writing tracks in FIG. 14 .

As shown in FIG. 16 , the effective touch point hits one writing track in the circumscribed rectangle 14 , and the associated writing track of the target writing track is another writing track in the circumscribing rectangle 14 . That is, a valid touch point in FIG. 15 would cause all the writing tracks in the circumscribed rectangle 14 to be highlighted. Subsequent adjustments are similar to those in Example 1.

Example four:

Example 4 provides a comprehensive adjustment scheme for the table, please refer to Figure 17-Figure 21.

As shown in FIG. 17 , the writing track includes a table, the line track of the table itself is a writing track, and the writing track in a single grid of the table is a spatial association relationship. The data in the current table is the birthday entry error of Xiao Ming and Xiaohong, which needs to be corrected. If the existing technology is used, because the writing track itself is not related, it is necessary to select one birthday with a set track gesture (such as a closed writing track), move it outside the table, and then select another birthday and move it to the correct position, then select the birthday outside the table and move it to the correct position. If the writing trajectories of the two birthdays intersect during the adjustment process, you can only undo the operation and readjust.

As shown in Figure 18-20, single-touch directly selects "August 21", drags one finger to the correct position, single-touch returns to writing mode, and single-touch directly selects "December 21" 8th" is selected, drag it to the correct position with one finger, and return to writing mode with a single touch to complete the entire correction process. The operation in the middle is simple, and the intersection of writing tracks is allowed.

In addition, as shown in Figure 21, if the effective touch point hits the line track of the table, then all the line tracks are used as the target writing track, and all the writing tracks in the table are used as the associated writing track, that is, the selection of the line track of the table is Selection of all writing tracks in Figure 17.

Embodiment 3

FIG. 22 is a schematic structural diagram of a device for adjusting a writing track according to Embodiment 3 of the present invention. Referring to FIG. 22 , the apparatus for adjusting the writing track includes: a first receiving unit 301 , a first responding unit 302 , a second receiving unit 303 and a second responding unit 304 .

Wherein, the first receiving unit 301 is used to receive a first touch operation acting on at least one writing track; the first responding unit 302 is used to respond to the first touch operation and determine the first touch operation including at least two writing tracks. A writing track group, the at least two writing tracks include the writing tracks selected by the first touch operation, and there is at least one preset logical relationship with each other; the second receiving unit 303 is used for receiving the second touch control operation; the second response unit 304 is configured to adjust the display of the writing track group in response to the second touch operation. .

Based on the above embodiment, the first touch operation includes at least one touch point, the touch duration of the at least one touch point satisfies the first setting, and the at least one touch point and the The distance of at least one writing track is within the first set range.

On the basis of the above embodiment, the touch point of the second touch operation is received within the circumscribed rectangle of the writing track group.

On the basis of the above embodiment, the circumscribed rectangle is covered with a transparent mask.

On the basis of the foregoing embodiment, the device further includes:

a third receiving unit, configured to receive a third touch operation outside the circumscribed rectangle;

The third response unit is configured to switch to the writing mode in response to the third touch operation.

On the basis of the above embodiment, the logical association relationship includes a spatial inclusion relationship, a position combination relationship, and a space-time relationship.

Based on the above embodiment, the adjustment gesture includes a single-finger drag gesture, a two-finger pan gesture, a multi-finger zoom gesture, and a two-finger rotation gesture. .

The device for adjusting the writing track provided by the embodiment of the present invention is included in the device for adjusting the writing track, and can be used to execute the method for adjusting the writing track provided by any of the above embodiments, and has corresponding functions and beneficial effects.

Embodiment 4

FIG. 23 is a schematic structural diagram of a terminal device according to Embodiment 4 of the present invention, where the terminal device is a specific hardware presentation solution of the device for adjusting the writing track described above. As shown in FIG. 23 , the terminal device includes a processor 410, a memory 420, an input device 430, an output device 440, and a communication device 450; the number of processors 410 in the terminal device may be one or more. Take the processor 410 as an example; the processor 410, the memory 420, the input device 430, the output device 440, and the communication device 450 in the terminal device can be connected through a bus or other means, and FIG. 23 takes the connection through a bus as an example.

As a computer-readable storage medium, the memory 420 can be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the method for adjusting the writing trajectory in the embodiment of the present invention (for example, a device for adjusting the writing trajectory). The first receiving unit 301, the first responding unit 302, the second receiving unit 303, and the second responding unit 304). The processor 410 executes various functional applications and data processing of the terminal device by running the software programs, instructions and modules stored in the memory 420, that is, the above-mentioned method for adjusting the writing track.

The memory 420 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. Additionally, memory 420 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 420 may further include memory located remotely from the processor 410, and these remote memories may be connected to the terminal device through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

The input device 430 may be used to receive input numerical or character information, and generate key signal input related to user setting and function control of the terminal device. The output device 440 may include a display device such as a display screen. The communication device 450 is used for data communication with the image capturing module.

The above-mentioned terminal equipment includes a device for adjusting the writing track, which can be used to execute any method for adjusting the writing track, and has corresponding functions and beneficial effects.

Embodiment 5

An embodiment of the present invention further provides a storage medium containing computer-executable instructions, the computer-executable instructions being used to perform a method for adjusting a writing trajectory when executed by a computer processor, the method comprising:

receiving a first touch operation acting on at least one writing track;

In response to the first touch operation, a writing track group including at least two writing tracks is determined, the at least two writing tracks include the writing track selected by the first touch operation, and there is at least one preset to each other. set logical relationship;

receiving a second touch operation;

In response to the second touch operation, the display of the writing track group is adjusted.

Of course, a storage medium containing computer-executable instructions provided by an embodiment of the present invention, the computer-executable instructions of which are not limited to the above-mentioned method operations, and can also perform the writing track adjustment method provided by any embodiment of the present invention. related operations in .

From the above description of the embodiments, those skilled in the art can clearly understand that the present invention can be realized by software and necessary general-purpose hardware, and of course can also be realized by hardware, but in many cases the former is a better embodiment . Based on such understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products can be stored in a computer-readable storage medium, such as a floppy disk of a computer , read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), flash memory (FLASH), hard disk or CD, etc., including several instructions to make a computer device (which can be a personal computer, A server, or a network device, etc.) executes the methods described in the various embodiments of the present invention.

It is worth noting that in the above-mentioned embodiment of the device for adjusting the writing track, the units and modules included are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be realized; , the specific names of the functional units are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present invention.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention. The scope is determined by the scope of the appended claims.

Claims (10)

1. a kind of method of handwriting trace adjustment characterized by comprising

Receive the first touch control operation for acting at least one handwriting trace；

In response to first touch control operation, the determining handwriting trace group including at least two handwriting traces, described at least two Handwriting trace includes the selected handwriting trace of first touch control operation, and there is at least one preset logic association mutually and close System；

Receive the second touch control operation；

In response to second touch control operation, the display of the handwriting trace group is adjusted.

2. the method according to claim 1, wherein first touch control operation includes at least one touch point, The touch-control duration of at least one touch point meets the first setting, and at least one described touch point and at least one book The distance of track is write in the first setting range.

3. the method according to claim 1, wherein the touch point of second touch control operation is in the writing rail It is received in the boundary rectangle of mark group.

4. according to the method described in claim 3, it is characterized in that, the boundary rectangle is covered with transparent mask.

5. the method according to claim 3 or 4, which is characterized in that the method, further includes:

Third touch control operation is received outside the boundary rectangle；

In response to the third touch control operation, it is switched to write mode.

6. the method according to claim 1, wherein the logic association relationship includes space inclusion relation, position Set syntagmatic and spatial and temporal association.

7. the method according to claim 1, wherein second touch control operation includes singly referring to drag gesture, double Refer to translation gesture, refer to that scaling gesture and two fingers rotate gesture more.

8. a kind of device of handwriting trace adjustment characterized by comprising

First receiving unit, for receiving the first touch control operation for acting at least one handwriting trace；

First response unit, for determining the writing rail including at least two handwriting traces in response to first touch control operation Mark group, at least two handwriting traces include the selected handwriting trace of first touch control operation, and have at least one mutually The preset logic association relationship of kind；

Second receiving unit, for receiving the second touch control operation；

Second response unit, for adjusting the display of the handwriting trace group in response to second touch control operation.

9. a kind of terminal device characterized by comprising

One or more processors；

Memory, for storing one or more programs；

When one or more of programs are executed by one or more of processors, so that one or more of processors are real The method of existing handwriting trace adjustment as claimed in claim 1.

10. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is by processor The method of handwriting trace adjustment as claimed in claim 1 is realized when execution.