CN115185427A - Handwriting adjusting method and device and electronic equipment - Google Patents
Handwriting adjusting method and device and electronic equipment Download PDFInfo
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- CN115185427A CN115185427A CN202110373206.9A CN202110373206A CN115185427A CN 115185427 A CN115185427 A CN 115185427A CN 202110373206 A CN202110373206 A CN 202110373206A CN 115185427 A CN115185427 A CN 115185427A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
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- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/147—Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
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Abstract
The invention discloses a method and a device for adjusting handwriting and electronic equipment. Wherein, the method comprises the following steps: displaying the electronic whiteboard for writing; responding to a writing instruction of a target object to the electronic whiteboard, and performing writing operation in the electronic whiteboard; in the writing operation process, obtaining the residual pigment amount of the writing pen, wherein the residual pigment amount is reduced along with the increase of the stroke amount in the writing process, and the stroke amount is the coverage area of the handwriting in the writing process; and in the writing process, adjusting the display attribute of the handwriting in the writing process according to the residual amount of the pigment. The invention solves the technical problem of poor handwriting simulation effect of the electronic whiteboard due to the fact that the influence of the change of the pigment quantity on the writing effect in the real writing process is not considered.
Description
Technical Field
The invention relates to the field of handwriting simulation, in particular to a method and a device for adjusting handwriting and electronic equipment.
Background
In order to simulate the peak effect of writing actually, the electronic whiteboard provides various types of pens and peak effects. However, in the related products on the market at present, the simulation of the pen peak is often dependent on the following factors: writing speed, pressure value, contact area, etc. The simulated handwriting is not the same color, but the color taken from the chartlet.
But in real scenes the effect of some pen types writing also depends on the amount of paint the pen is stained with. For example, in the writing process of a real writing brush, handwriting becomes shallower and shallower along with the consumption of ink, and even when ink is seriously lacked, the handwriting is not cut.
However, the current products in the market do not have the function of considering the pigment factors into the writing effect factors, and the simulation effect of the products needs to be further improved.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The embodiment of the invention provides a method, a device and electronic equipment for adjusting handwriting, which are used for at least solving the technical problem of poor simulation effect of the handwriting of an electronic whiteboard due to the fact that the influence of the change of the pigment quantity on the writing effect in the real writing process is not considered.
According to an aspect of the embodiments of the present invention, there is provided a method for adjusting handwriting, including: displaying the electronic whiteboard for writing; responding to a writing instruction of a target object to the electronic whiteboard, and performing writing operation in the electronic whiteboard; in the writing operation process, obtaining the residual pigment amount of the writing pen, wherein the residual pigment amount is reduced along with the increase of the stroke amount in the writing process, and the stroke amount is the coverage area of the handwriting in the writing process; and in the writing process, adjusting the display attribute of the handwriting in the writing process according to the residual amount of the pigment.
Optionally, adjusting the display attribute of the handwriting in the writing process according to the residual amount of the pigment, including: comparing the residual amount of the pigment with a first threshold value during writing; when the residual amount of the pigment is not less than a first threshold value, continuously drawing the handwriting according to the current display attribute; and when the residual quantity of the pigment is smaller than a first threshold value, adjusting the color attribute in the display attribute of the handwriting in the subsequent writing operation process to enable the color of the handwriting to gradually become lighter along with the reduction of the residual quantity of the pigment, wherein the subsequent writing process is in a state that the residual quantity of the pigment is smaller than the first threshold value.
Optionally, the color property in the presentation property of the handwriting comprises color transparency.
Optionally, adjusting the color attribute in the presentation attribute includes: when the residual amount of the pigment is smaller than a first threshold value, determining the color gradient information of each segment of the handwriting according to the residual amount of the pigment of each segment of the handwriting in the subsequent writing process, and setting the gradient effect of each segment according to the color gradient information; and determining the color attribute of each part of the handwriting according to the gradual change effect of each part of the handwriting, and rendering the handwriting according to the color attribute.
Optionally, determining color information for each portion of the writing includes determining a transparency of each portion of the writing.
Optionally, the adjusting the display property of the handwriting in the writing process according to the residual amount of the pigment comprises: comparing the residual amount of the pigment with a second threshold value during writing; when the residual amount of the pigment is not less than a second threshold value, continuously drawing the handwriting according to the current display attribute; and when the residual amount of the pigment is smaller than a second threshold value, carrying out deformation processing on the pen point of the handwriting according to the residual amount of the pigment.
Optionally, according to the type of the pen and the residual amount of the pigment, the deformation processing is performed on the pen point of the handwriting, and the deformation processing comprises the following steps: determining the specific deformation effect of the deformation according to the type of the pen; when the residual amount of the pigment is smaller than a second threshold value, determining the change information of the coverage area of each segment of the handwriting according to the residual amount of the pigment and the specific deformation effect of each segment of the handwriting in the subsequent writing process, and setting the information of the coverage area of each segment after deformation treatment according to the change information of the coverage area; and processing the stroke of the handwriting according to the coverage area information after the deformation processing of each segment of the handwriting.
Optionally, processing the stroke front of the handwriting according to the coverage area information after the deformation processing of each segment of the handwriting, including: determining the coverage area of each segment after the handwriting is subjected to deformation processing according to the coverage area information of each segment after the deformation processing; and filling pigment into the coverage area of each segment, wherein after the coverage area is filled with the pigment, the color attribute in the display attribute of the coverage area is the same as the color attribute of the corresponding coverage area of each segment before deformation processing.
Optionally, processing the stroke front of the handwriting according to the coverage area information after the deformation processing of each segment of the handwriting, including: determining the coverage area of each segment after the handwriting is subjected to deformation processing according to the coverage area information of each segment after the deformation processing; comparing the coverage area with the coverage area of each segment before deformation processing, and determining the coverage area which is not subjected to deformation processing and comprises the coverage area; the area is set to be colorless or the same color as the ground color of the electronic whiteboard.
Alternatively, during the writing operation, the electronic whiteboard may modify the remaining amount of pigment of the writing pen, including increasing the remaining amount of pigment of the writing pen or decreasing the remaining amount of pigment of the writing pen, in response to a target object pigment remaining amount modification instruction to the electronic whiteboard.
According to another aspect of the embodiments of the present invention, there is also provided a handwriting display method, including: displaying the electronic whiteboard for writing; displaying the residual amount of the pigment of the writing pen in the writing operation process, wherein the residual amount of the pigment is reduced along with the increase of the stroke amount in the writing process, and the stroke amount is the coverage area of the handwriting in the writing process; and displaying the handwriting after the display attribute of the handwriting in the writing process is adjusted according to the residual amount of the pigment in the writing process.
Optionally, the handwriting display method further includes an interactive interface, where the interactive interface may further respond to an operation instruction of a user, select a certain part of handwriting from the existing handwriting, and process the certain part of handwriting, and includes: the interactive interface responds to an operation instruction of a user and determines the type of the pen and the change condition of the pigment residual quantity of the pen; and determining the display attribute of a certain part of handwriting according to the type of the pen and the change of the pigment residual quantity of the pen.
Alternatively, during the writing operation, the interactive interface may modify the pigment residual amount of the writing pen, including increasing the pigment residual amount of the writing pen or decreasing the pigment residual amount of the writing pen, in response to a pigment residual amount modification instruction of the target object to the electronic whiteboard.
According to another aspect of the embodiments of the present invention, there is also provided a writing script simulation apparatus, including: the display module is used for displaying the electronic whiteboard for writing; the writing module is used for responding to a writing instruction of the target object to the electronic whiteboard and performing writing operation in the electronic whiteboard; the acquisition module is used for acquiring the residual amount of the pigment of the writing pen in the writing operation process, wherein the residual amount of the pigment is reduced along with the increase of the stroke amount in the writing process, and the stroke amount is the coverage area of the handwriting in the writing process; and the processing module is used for adjusting the display attribute of the handwriting in the writing process according to the residual amount of the pigment in the writing process.
According to another aspect of the embodiments of the present invention, there is also provided an electronic device including: a memory for storing a program; a processor for executing the program stored in the memory and performing the following functions when executing the program: responding to a writing instruction of a target object to the electronic whiteboard, and performing writing operation in the electronic whiteboard; in the writing operation process, obtaining the residual pigment amount of the writing pen, wherein the residual pigment amount is reduced along with the increase of the stroke amount in the writing process, and the stroke amount is the coverage area of the handwriting in the writing process; in the writing process, adjusting the display attribute of the handwriting in the writing process according to the residual amount of the pigment; the display equipment is used for displaying the electronic whiteboard and handwriting in the writing process; and the input device is used for receiving a writing instruction of the target object and generating handwriting corresponding to the writing instruction.
According to another aspect of the embodiments of the present invention, there is also provided a non-volatile storage medium, where the storage medium includes a stored program, and when the program runs, the device where the storage medium is located is controlled to execute an adjustment method of writing.
In the embodiment of the invention, an electronic whiteboard for displaying writing is adopted; responding to a writing instruction of a target object to the electronic whiteboard, and performing writing operation in the electronic whiteboard; in the writing operation process, obtaining the residual pigment amount of the writing pen, wherein the residual pigment amount is reduced along with the increase of the stroke amount in the writing process, and the stroke amount is the coverage area of the handwriting in the writing process; in the writing process, the display attribute of the handwriting in the writing process is adjusted according to the residual amount of the pigment, and the purpose of improving the simulation degree of the handwriting is achieved by increasing the residual amount of the pigment, so that the technical effect that the handwriting of the electronic whiteboard is closer to the real writing effect is achieved, and the technical problem that the simulation effect of the handwriting of the electronic whiteboard is poor due to the fact that the influence of the change of the amount of the pigment in the real writing process on the writing effect is not considered is solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow chart of a method for adjusting handwriting according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an interactive interface according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating a principle of deformation processing of a pen tip according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating handwriting effects after processing according to an embodiment of the invention;
FIG. 5 is a schematic diagram of a writing script adjustment apparatus according to an embodiment of the present invention;
FIG. 6 is a flow chart illustrating a handwriting display method according to an embodiment of the invention;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Example 1
In accordance with an embodiment of the present invention, there is provided a method embodiment of a method of handwriting adjustment, it being noted that the steps illustrated in the flowchart of the figure may be performed in a computer system such as a set of computer executable instructions, and that while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than here.
FIG. 1 is a method for adjusting writing scripts according to an embodiment of the invention, as shown in FIG. 1, the method includes the following steps:
step S102, displaying an electronic whiteboard for writing;
in some embodiments of the present application, a user may perform personalized setting on the electronic whiteboard, for example, setting the background color of the electronic whiteboard to different colors, or setting the background of the electronic whiteboard to multiple pre-stored writing background templates, such as a field case, a cross-case letter, and the like.
Step S104, responding to a writing instruction of a target object to the electronic whiteboard, and performing writing operation in the electronic whiteboard;
it should be noted that, during the writing operation of the target object in the electronic whiteboard, the electronic whiteboard may set the type of the writing pen and the writing effect in response to the operation instruction of the target object. The types of the writing pens comprise writing brushes, pens, ball pens, painting brushes and the like; the writing effect comprises the handwriting width, the color of the pigment and the like.
In some embodiments of the present application, when the electronic device operating the electronic whiteboard is a pressure-sensitive electronic device, the electronic whiteboard may adjust a writing effect during writing of the target object in response to an operation instruction of the target object. For example, the width of the handwriting is adjusted in response to the pressure of the target object on the electronic device during the writing process, and the width of the handwriting is positively correlated with the pressure.
Step S106, in the writing operation process, obtaining the residual pigment amount of the writing pen, wherein the residual pigment amount is reduced along with the increase of the stroke amount in the writing process, and the stroke amount is the coverage area of the handwriting in the writing process;
the representation form of the writing pen in the electronic whiteboard may be a virtual pen or a touch point, or may be a cursor or the like.
In some embodiments of the present application, parameters that need to be specified during the writing operation include: the pigment storage capacity K of the pen point is the maximum storable pigment amount; the residual pigment amount P of the pen point; i.e. the amount of pigment currently remaining; the pigment consumption coefficient k of the pen point represents the speed of pigment use in writing, and the larger k is, the more pigment is used in the same handwriting area, and the faster the pigment consumption is; the handwriting color transparency alpha is opaque when the value of 0-1,0 is taken, and 1 is fully transparent; the pigment quantity threshold value beta when the color changes, namely the first threshold value mentioned above, when the residual quantity P of the pigment is less than beta, the color of the handwriting begins to gradually become lighter; and a pigment amount threshold value theta when the pen point effect is changed, namely a second threshold value, and when the pigment residual amount P < theta, the pen peak of the handwriting begins to deform.
Specifically, the relationship between the stroke quantity and the parameters is as follows: the remaining amount of the pigment gradually decreases with the amount of written handwriting Q. The writing amount can be measured by the coverage area of the handwriting, and can also be roughly measured by the writing time, the default width of the handwriting (the width of the handwriting may change in the writing process) and other factors. That is, the remaining amount of handwriting can be represented by the following formula: p = P 0 -KQ. In the formula P 0 Initial value of residual amount of pigment, P when full of pigment 0 And K. As can be seen from the above formula, P is proportional to-Q, without limiting the proportional relation k, the size of k can be adjusted according to the specific effect, or k is made to be a dynamic variable.
And S108, in the writing process, adjusting the display attribute of the handwriting in the writing process according to the residual amount of the pigment.
In some embodiments of the present application, adjusting the display property of the handwriting in the writing process according to the residual amount of the pigment comprises: during writing, comparing the residual quantity of the pigment with a first threshold value; when the residual amount of the pigment is not less than the first threshold value, continuously drawing the handwriting according to the current display attribute; when the residual amount of the pigment is smaller than the first threshold value, adjusting the color attribute in the display attribute of the handwriting in the subsequent writing operation process to enable the color of the handwriting to become lighter gradually along with the reduction of the residual amount of the pigment, wherein the subsequent writing process is a state that the residual amount of the pigment is smaller than the first threshold value, and the color attribute comprises transparency.
In some embodiments of the application, adjusting the color attribute in the display attribute means determining color gradient information of each segment of the handwriting according to the remaining amount of the pigment of each segment of the handwriting in the subsequent writing process when the remaining amount of the pigment is smaller than the first threshold, and setting a gradient effect of each segment according to the color gradient information; and determining the color attribute of each part of the handwriting according to the gradient effect of each part of the handwriting, and rendering the handwriting according to the color attribute.
Wherein determining color information for each portion of the writing includes determining a transparency of each portion of the writing.
For example, when the residual pigment quantity P is larger than or equal to beta, the color of the handwriting does not change along with the change of P and is displayed by the current pigment color. When the residual quantity P < beta, the color of the handwriting becomes gradually lighter as the quantity Q' of the subsequently written handwriting increases.
The color change formula obtained comprehensively is as follows:
from the above formula, when P < β, α is inversely proportional to P +1, but the proportional relationship is not limited, and the variable ratio may be added according to the specific effect, or may be dynamically changed.
In some embodiments of the present application, as the residual amount of the pigment is reduced, the following scheme can be adopted for realizing the lightening of the handwriting:
a small path (and the handwriting segmentation described above) formed between adjacent touch points, the alpha (transparency) value of each path can be obtained through the above calculation, the gradual change effect of Paint is set in the direction from the previous touch point to the current touch point, and the gradual change effect of Paint is set from alpha n-1 To alpha n Gradually changing the drawing, setting the Shader of the painting brush Paint by using Linear gradient, wherein Android codes are as follows
Wherein, point _ before _ x, point _ before _ y, point _ current _ x, and point _ current _ y represent the positions of two points before and after, colorStart, colorEnd color gradient range, and the transparency of colorStart is α n-1 Clarity of colorEnd is alpha n 。
The touch point refers to a point obtained from handwriting to be processed.
In some embodiments of the application, adjusting the display property of the handwriting in the writing process according to the residual amount of the pigment further comprises: comparing the residual quantity of the pigment with a second threshold value in the writing process; when the residual amount of the pigment is not less than the second threshold value, continuously drawing the handwriting according to the current display attribute; and when the residual amount of the pigment is smaller than a second threshold value, carrying out deformation processing on the pen point of the handwriting according to the residual amount of the pigment.
For example, when the residual amount P of the pigment is larger than or equal to theta, the normal effect of the pen peak is adopted by the pen peak of the handwriting. When the pigment residual quantity P < theta, the pen peak is set to start to deform, and the specific deformation effect is determined by the pigment residual quantity and the type of the pen, wherein the type of the pen determines which kind of deformation occurs specifically. For example, when the brush pen is lack of pigment, the brush head may be split. Common deformation processing includes operations of adjusting the width of a pen point, not closing a pen point, increasing gaps among handwriting and the like.
It should be noted that the first threshold and the second threshold may be set by the target object, and the first threshold and the second threshold may be the same or different; when a segment of handwriting needs to be subjected to color attribute adjustment and stroke deformation processing at the same time, color attribute adjustment or stroke deformation processing can be performed first, and color attribute adjustment and stroke deformation processing can also be performed at the same time, namely, deformation and color change are two independent processes.
Specifically, according to the type of the pen and the residual amount of the pigment, the step of performing deformation processing on the pen point of the handwriting comprises the following steps: when the residual pigment amount is smaller than the second threshold value, determining the change information of the coverage area of each segment of the handwriting according to the residual pigment amount of each segment of the handwriting and the type of the pen in the subsequent writing process, and setting the information of the coverage area of each segment after deformation processing according to the change information of the coverage area; and processing the stroke front of the handwriting according to the coverage area information of each segment of the handwriting after the deformation processing.
In some embodiments of the application, processing the writing front of the handwriting according to the coverage area information after the deformation processing of each segment of the handwriting includes: determining the coverage area of each segment after the handwriting is subjected to deformation processing according to the coverage area information of each segment after the deformation processing; and filling a pigment into the coverage area of each segment, wherein after the pigment is filled into the coverage area, the color attribute in the display attribute of the coverage area is the same as the color attribute of the coverage area corresponding to each segment before deformation processing.
Processing the stroke according to the coverage area information of each segment of the handwriting after the deformation processing, and further comprising the following steps: determining the coverage area of each segment after the handwriting is subjected to deformation processing according to the coverage area information of each segment after the deformation processing; comparing the coverage area with the coverage area of each segment before deformation processing, and determining the coverage area which is not subjected to deformation processing and comprises the coverage area; and setting the area to be colorless or the same color as the ground color of the electronic whiteboard.
For example, when the deformation processing is increasing or writing width, the writing width of each part of the writing after the deformation processing needs to be determined according to the type of the pen and the residual amount of the pigment; when the handwriting width of a certain part of handwriting in each part of handwriting is larger than the handwriting width of the certain part of handwriting before deformation processing, selecting an area near the certain part of handwriting, and filling the area with a color which is the same as the color of the handwriting of the certain part of handwriting, wherein the area near is an area which is the coverage area of the deformed part of handwriting and is increased relative to the coverage area of the deformed part of handwriting; when the handwriting width of a certain part of handwriting in each part of handwriting is smaller than the handwriting width of the certain part of handwriting before deformation processing, selecting a partial area in the certain part of handwriting, and setting the color in the partial area to be colorless, wherein the partial area is a coverage area after the deformation of the certain part of handwriting, and is an area reduced relative to the coverage area before the deformation of the certain part of handwriting.
In some embodiments of the application, when the processing on the front of the handwriting is to increase the gap between the handwriting, a Path formed by two touch points may be drawn first, and then a thinner stroke width is set with the same Path, and a background color is used as a pen color, and is drawn on the Path with a set offset to simulate cracking of the handwriting, as shown in fig. 3. In FIG. 3, the left part is the handwriting before deformation processing, and the right part is the handwriting after deformation processing.
In some embodiments of the present application, during the writing operation, the electronic whiteboard may modify the pigment residual amount of the writing pen, including increasing the pigment residual amount of the writing pen or decreasing the pigment residual amount of the writing pen, in response to a pigment residual amount modification instruction of the electronic whiteboard by the target object.
Through the steps, the actual writing effect can be better simulated in the electronic whiteboard, as shown in fig. 4. As can be seen from FIG. 4, as the writing process proceeds, the residual amount of the pigment is reduced, the tip of the writing brush is deformed, and then the color is changed from deep to light, so that the writing effect of the writing brush is well restored.
In some embodiments of the present application, there is also provided a handwriting display method as shown in fig. 6, including:
s602, displaying an electronic whiteboard for writing;
s604, displaying the residual amount of the pigment of the writing pen in the writing operation process, wherein the residual amount of the pigment is reduced along with the increase of the stroke amount in the writing process, and the stroke amount is the coverage area of the handwriting in the writing process;
and S606, displaying the handwriting after the display attribute of the handwriting in the writing process is adjusted according to the residual amount of the pigment in the writing process.
In addition, in some embodiments of the present application, the display method further includes a display interface, and the interactive interface may further respond to an operation instruction of a user, select a certain part of handwriting from existing handwriting, and process the certain part of handwriting, including: the interactive interface responds to an operation instruction of a user and determines the type of the pen and the change condition of the pigment residual quantity of the pen; and determining the display attribute of the certain part of handwriting according to the type of the pen and the change condition of the pigment residual quantity of the pen.
In some embodiments of the present application, the interactive interface is shown in fig. 2, in which the left half of fig. 2 is a handwriting display and writing area, and the right side is a corresponding setting area. Wherein the palette can be used to replenish the stylus with pigment. Specifically, the user may aim the tip of the stylus at the palette for a period of time to replenish the paint.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Example 2
According to an embodiment of the present invention, there is also provided an apparatus embodiment of an apparatus for adjusting writing, as shown in fig. 5, including: a display module 50 for displaying an electronic whiteboard for writing; a writing module 52, configured to perform a writing operation in the electronic whiteboard in response to a writing instruction of a target object to the electronic whiteboard; an obtaining module 54, configured to obtain a remaining pigment amount of a writing pen in the writing operation process, where the remaining pigment amount decreases with an increase of a trace amount in the writing process, and the trace amount is a coverage area of a handwriting in the writing process; and the processing module 56 is used for adjusting the display attribute of the handwriting in the writing process according to the residual amount of the pigment in the writing process.
In some embodiments of the present application, the display module 50 may allow a user to set the electronic whiteboard individually, for example, set the background color of the electronic whiteboard to different colors, or set the background of the electronic whiteboard to a plurality of pre-stored writing background templates, such as a field grid, a cross grid letter paper, and the like.
It should be noted that, during the writing operation of the target object in the electronic whiteboard, the electronic whiteboard may set the type of the writing pen and the writing effect in response to the operation instruction of the target object. The types of the writing pens comprise writing brushes, pens, ball-point pens, paintbrushes and the like; the writing effect comprises the width of handwriting, the color of pigment and the like.
In some embodiments of the present application, when the electronic device operating the electronic whiteboard is a pressure-sensitive electronic device, the writing module of the electronic whiteboard may adjust a writing effect during writing of the target object in response to an operation instruction of the target object. For example, the width of the handwriting is adjusted in response to the pressure of the target object on the electronic device during the writing process, and the width of the handwriting is positively correlated with the pressure.
In some embodiments of the present application, parameters that need to be specified during the writing operation include: the pigment storage capacity K of the pen point is the maximum storable pigment amount; the residual pigment quantity P of the pen point; i.e. the amount of pigment currently remaining; the pigment consumption coefficient k of the pen point represents the speed of pigment use in writing, and the larger k is, the more pigment is used in the same handwriting area, and the faster the pigment consumption is; the handwriting color transparency alpha is opaque when the value of 0-1,0 is taken, and 1 is fully transparent; the pigment quantity threshold value beta when the color changes, namely the first threshold value mentioned above, when the residual quantity P of the pigment is less than beta, the color of the handwriting begins to gradually become lighter; the threshold value theta of the pigment amount when the nib effect changes, namely the second threshold value, when the residual amount P of the pigment is less than theta, the pen peak of the handwriting begins to deform.
Specifically, the relationship between the stroke quantity and the parameters is as follows: the remaining amount of the pigment gradually decreases with the amount of written handwriting Q. The writing amount can be measured by the coverage area of the writing, or roughly measured by the writing duration and the default width of the writing (the writing width may change in the writing process). That is, the remaining amount of handwriting can be represented by the following formula: p = P 0 -KQ. In the formula P 0 Initial value of residual amount of pigment, P when full of pigment 0 K (= K). As can be seen from the above formula, P is proportional to-Q, without limiting the proportional relation k, the size of k can be adjusted according to the specific effect, or k is made to be a dynamic variable.
In some embodiments of the present application, adjusting the display property of the handwriting in the writing process according to the residual amount of the pigment comprises: during writing, comparing the residual quantity of the pigment with a first threshold value; when the residual amount of the pigment is not less than the first threshold value, continuously drawing the handwriting according to the current display attribute; when the residual amount of the pigment is smaller than the first threshold value, adjusting the color attribute in the display attribute of the handwriting in the subsequent writing operation process to enable the color of the handwriting to become lighter gradually along with the reduction of the residual amount of the pigment, wherein the subsequent writing process is a state that the residual amount of the pigment is smaller than the first threshold value, and the color attribute comprises transparency.
In some embodiments of the application, adjusting the color attribute in the display attribute means determining color gradient information of each segment of the handwriting according to the remaining amount of the pigment of each segment of the handwriting in the subsequent writing process when the remaining amount of the pigment is smaller than the first threshold, and setting a gradient effect of each segment according to the color gradient information; and determining the color attribute of each part of the handwriting according to the gradient effect of each part of the handwriting, and rendering the handwriting according to the color attribute.
Wherein determining color information for each portion of the writing includes determining a transparency of each portion of the writing.
For example, when the residual pigment quantity P is larger than or equal to beta, the color of the handwriting does not change along with the change of P and is displayed by the current pigment color. When the residual quantity P < beta, the color of the handwriting becomes gradually lighter as the quantity Q' of the subsequently written handwriting increases.
The color change formula obtained comprehensively is as follows:
from the above formula, when P < β, α is inversely proportional to P +1, but the proportional relationship is not limited, and the variable ratio may be added according to the specific effect, or may be dynamically changed.
In some embodiments of the present application, as the residual amount of the pigment is reduced, the following scheme can be adopted for realizing the lightening of the handwriting:
a small path (and the handwriting segmentation described above) formed between adjacent touch points, the alpha (transparency) value of each path can be obtained through the above calculation, the gradual change effect of Paint is set in the direction from the previous touch point to the current touch point, and the gradual change effect of Paint is set from alpha n-1 To alpha n Gradually changing the painting brush, and setting the Shader of the painting brush Paint by using Linear gradient, wherein Android codes are as follows:
wherein, point _ before _ x, point _ before _ y, point _ current _ x, and point _ current _ y represent the positions of two points before and after, colorStart, colorEnd color gradient range, and the transparency of colorStart is α n-1 Clarity of colorEnd is alpha n 。
The touch point refers to a point obtained from handwriting to be processed.
In some embodiments of the application, adjusting the display property of the handwriting in the writing process according to the residual amount of the pigment further comprises: comparing the remaining amount of pigment with a second threshold value during the writing process; when the residual amount of the pigment is not less than the second threshold value, continuously drawing the handwriting according to the current display attribute; and when the residual amount of the pigment is smaller than a second threshold value, carrying out deformation processing on the pen point of the handwriting according to the residual amount of the pigment.
For example, when the residual amount P of the pigment is larger than or equal to theta, the normal effect of the pen peak is adopted by the pen peak of the handwriting. When the pigment residual quantity P < theta, the set pen peak starts to deform, and the specific deformation effect is determined by the pigment residual quantity and the pen type, for example, when the writing brush is lack of pigment, the pen point is split. Common deformation processing includes operations of adjusting the width of a pen point, not closing a pen point, increasing gaps among handwriting and the like.
It should be noted that the first threshold and the second threshold may be set by the target object, and the first threshold and the second threshold may be the same or different; when a segment of handwriting needs to be subjected to color attribute adjustment and stroke deformation processing at the same time, the color attribute adjustment or stroke deformation processing can be performed first, and the color attribute adjustment and stroke deformation processing can also be performed at the same time.
Specifically, according to the type of the pen and the residual amount of the pigment, the step of performing deformation processing on the pen point of the handwriting comprises the following steps: when the residual pigment amount is smaller than the second threshold value, determining the change information of the coverage area of each segment of the handwriting according to the residual pigment amount of each segment of the handwriting and the type of the pen in the subsequent writing process, and setting the information of the coverage area of each segment after deformation processing according to the change information of the coverage area; and processing the stroke front of the handwriting according to the coverage area information of each segment of the handwriting after the deformation processing.
In some embodiments of the application, processing the writing front of the handwriting according to the coverage area information of each segment of the handwriting after the deformation processing includes: determining the coverage area of each segment after the handwriting is subjected to deformation processing according to the coverage area information of each segment after the deformation processing; and filling a pigment into the coverage area of each segment, wherein after the pigment is filled into the coverage area, the color attribute in the display attribute of the coverage area is the same as the color attribute of the coverage area corresponding to each segment before deformation processing.
Processing the stroke front of the handwriting according to the coverage area information of each segment of the handwriting after the deformation processing, and further comprising the following steps: determining the coverage area of each segment after the handwriting is subjected to deformation processing according to the coverage area information of each segment after the deformation processing; comparing the coverage area with the coverage area of each segment before deformation processing, and determining the coverage area which is not subjected to deformation processing in the coverage area before deformation processing and comprises the coverage area; and setting the area to be colorless or the same color as the ground color of the electronic whiteboard.
For example, when the deformation processing is increasing or writing width, the writing width of each part of writing after deformation processing needs to be determined according to the type of the pen and the residual amount of the pigment; when the handwriting width of a certain part of handwriting in each part of handwriting is larger than the handwriting width of the certain part of handwriting before deformation processing, selecting an area near the certain part of handwriting, and filling the area with a color which is the same as the color of the handwriting of the certain part of handwriting, wherein the area near is an area which is the coverage area of the deformed part of handwriting and is increased relative to the coverage area of the deformed part of handwriting; and when the handwriting width of a certain part of the handwriting in each part of the handwriting is smaller than the handwriting width of the certain part of the handwriting before deformation processing, selecting a partial area in the certain part of the handwriting, and setting the color in the partial area to be colorless, wherein the partial area is a coverage area of the deformed certain part of the handwriting and is an area reduced relative to the coverage area of the deformed certain part of the handwriting.
In some embodiments of the application, when the processing on the front of the handwriting is to increase the gap between the handwriting, a Path formed by two touch points may be drawn first, and then a thinner stroke width is set with the same Path, and a background color is used as a pen color, and is drawn on the Path with a set offset to simulate cracking of the handwriting, as shown in fig. 3. In FIG. 3, the left side is the handwriting before the deformation process, and the right side is the handwriting after the deformation process.
In some embodiments of the present application, during the writing operation, the electronic whiteboard may modify the pigment residual amount of the writing pen, including increasing the pigment residual amount of the writing pen or decreasing the pigment residual amount of the writing pen, in response to a pigment residual amount modification instruction of the electronic whiteboard by the target object.
Example 3
According to an embodiment of the present invention, there is also provided an electronic device as shown in fig. 7, including: a memory for storing programs and data; a processor for executing the program stored in the memory and performing the following functions when executing the program: responding to a writing instruction of a target object to the electronic whiteboard, and performing writing operation in the electronic whiteboard; in the writing operation process, obtaining the residual pigment amount of the writing pen, wherein the residual pigment amount is reduced along with the increase of the stroke amount in the writing process, and the stroke amount is the coverage area of the handwriting in the writing process; in the writing process, adjusting the display attribute of the handwriting in the writing process according to the residual amount of the pigment; the display equipment is used for displaying the electronic whiteboard and the handwriting in the writing process; and the input device is used for receiving a writing instruction of the target object and generating handwriting corresponding to the writing instruction.
In some embodiments of the present application, the display device may further display the interactive interface described above. The input equipment can also respond to an operation instruction of a user to carry out personalized setting on the electronic whiteboard.
Example 4
According to the embodiment of the invention, a non-volatile storage medium is also provided, and the storage medium comprises a stored program, wherein when the program runs, the device where the storage medium is located is controlled to execute the method for adjusting the handwriting.
In the above embodiments of the present invention, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units may be a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed coupling or direct coupling or communication connection between each other may be an indirect coupling or communication connection through some interfaces, units or modules, and may be electrical or in other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention, which is substantially or partly contributed by the prior art, or all or part of the technical solution may be embodied in a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (13)
1. A method for adjusting handwriting, comprising:
displaying the electronic whiteboard for writing;
responding to a writing instruction of a target object to the electronic whiteboard, and performing writing operation in the electronic whiteboard;
in the writing operation process, obtaining the residual pigment amount of a writing pen, wherein the residual pigment amount is reduced along with the increase of the stroke amount in the writing process, and the stroke amount is the coverage area of the handwriting in the writing process;
and in the writing process, adjusting the display attribute of the handwriting in the writing process according to the residual amount of the pigment.
2. The method as claimed in claim 1, wherein adjusting the display property of the handwriting during writing according to the residual amount of the pigment comprises:
comparing the remaining amount of the pigment with a first threshold value during the writing;
when the residual amount of the pigment is not less than the first threshold value, continuously drawing the handwriting according to the current display attribute;
and when the residual amount of the pigment is smaller than the first threshold value, adjusting the color attribute in the display attribute of the handwriting in the subsequent writing operation process.
3. The method of claim 2, wherein the color attribute in the presentation attribute of the handwriting comprises color transparency, and adjusting the color attribute in the presentation attribute of the handwriting during a subsequent writing operation comprises: and adjusting the color transparency of the handwriting so that the color transparency of the handwriting becomes lighter gradually with the reduction of the residual amount of the pigment.
4. The method of claim 2, wherein adjusting the color attribute in the presentation attribute comprises:
when the residual pigment amount is smaller than the first threshold value, determining the color gradient information of each segment of the handwriting according to the residual pigment amount of each segment of the handwriting in the subsequent writing process, and setting the gradient effect of each segment according to the color gradient information;
and determining the color attribute of each part of the handwriting according to the gradient effect of each part of the handwriting, and rendering the handwriting according to the color attribute.
5. The method according to claim 1, wherein adjusting the display properties of the handwriting in the writing process according to the residual amount of the pigment comprises:
comparing the remaining amount of pigment with a second threshold value during the writing process;
when the residual amount of the pigment is not less than the second threshold value, continuously drawing the handwriting according to the current display attribute;
and when the residual amount of the pigment is smaller than a second threshold value, carrying out deformation processing on the pen point of the handwriting according to the residual amount of the pigment.
6. The method as claimed in claim 5, wherein the deformation processing of the nib of the handwriting according to the type of the pen and the residual amount of the pigment comprises:
determining the specific deformation effect of the deformation according to the type of the pen;
when the residual pigment amount is smaller than the second threshold value, determining the change information of the coverage area of each segment of the handwriting according to the residual pigment amount and the specific deformation effect of each segment of the handwriting in the writing process, and setting the information of the coverage area of each segment after deformation processing according to the change information of the coverage area;
and processing the stroke front of the handwriting according to the coverage area information of each segment of the handwriting after the deformation processing.
7. The method as claimed in claim 6, wherein processing the stroke of the handwriting according to the coverage area information after the deformation processing of each segment of the handwriting comprises:
determining the coverage area of each segment after the handwriting is subjected to deformation processing according to the coverage area information of each segment after the deformation processing;
and filling a pigment into the coverage area of each segment, wherein after the pigment is filled into the coverage area, the color attribute in the display attribute of the coverage area is the same as the color attribute of the coverage area corresponding to each segment before deformation processing.
8. The method according to claim 6, wherein processing the writing front of the handwriting according to the coverage area information after the deformation processing of each segment of the handwriting comprises:
determining the coverage area of each segment after the handwriting is subjected to deformation processing according to the coverage area information of each segment after the deformation processing;
comparing the coverage area with the coverage area of each segment before deformation processing, and determining the coverage area which is not subjected to deformation processing in the coverage area before deformation processing and comprises the coverage area;
and setting the area to be the same color as the ground color of the electronic whiteboard.
9. The method of claim 1, further comprising: during the writing operation, responding to a pigment residual quantity modification instruction of the target object to the electronic whiteboard, and modifying the pigment residual quantity of the writing pen, wherein the modification comprises the following steps: increasing the pigment residual amount of the writing pen or decreasing the pigment residual amount of the writing pen.
10. A handwriting display method is characterized by comprising the following steps:
displaying the electronic whiteboard for writing;
displaying the residual amount of the pigment of the writing pen in the writing operation process, wherein the residual amount of the pigment is reduced along with the increase of the trace amount in the writing process, and the trace amount is the coverage area of the handwriting in the writing process;
and displaying the handwriting after the display attribute of the handwriting in the writing process is adjusted according to the residual amount of the pigment in the writing process.
11. An apparatus for adjusting handwriting, comprising:
the display module is used for displaying the electronic whiteboard for writing;
the writing module is used for responding to a writing instruction of a target object to the electronic whiteboard and performing writing operation in the electronic whiteboard;
the acquisition module is used for acquiring the residual amount of the pigment of the writing pen in the writing operation process, wherein the residual amount of the pigment is reduced along with the increase of the trace amount in the writing process, and the trace amount is the coverage area of the handwriting in the writing process;
and the processing module is used for adjusting the display attribute of the handwriting in the writing process according to the residual amount of the pigment in the writing process.
12. An electronic device, comprising:
a memory for storing a program;
a processor for executing the program stored in the memory and performing the following functions when executing the program: responding to a writing instruction of a target object to the electronic whiteboard, and performing writing operation in the electronic whiteboard; in the writing operation process, obtaining the residual pigment amount of a writing pen, wherein the residual pigment amount is reduced along with the increase of the stroke amount in the writing process, and the stroke amount is the coverage area of the handwriting in the writing process; in the writing process, adjusting the display attribute of the handwriting in the writing process according to the residual amount of the pigment;
the display equipment is used for displaying the electronic whiteboard and the handwriting in the writing process;
and the input equipment is used for receiving the writing instruction of the target object and generating handwriting corresponding to the writing instruction.
13. A non-volatile storage medium, comprising a stored program, wherein the program, when executed, controls a device in which the non-volatile storage medium is located to execute the method for adjusting writing according to any one of claims 1 to 9.
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| CN202110373206.9A CN115185427A (en) | 2021-04-07 | 2021-04-07 | Handwriting adjusting method and device and electronic equipment |
| PCT/CN2022/085115 WO2022213936A1 (en) | 2021-04-07 | 2022-04-02 | Handwriting adjustment method and apparatus, and electronic device |
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