CN108334270A - Touch screen hand-writing input is rendered as the method with type feature person's handwriting - Google Patents

Abstract

The invention provides a method for displaying handwriting input on a touch screen as characteristic handwriting of a stylus pen, which belongs to a method for presenting handwriting on a touch screen. It obtains the speed characteristics of touch writing except the track points, and determines the width of the handwriting at each point according to the speed characteristics. The handwriting presentation of two adjacent points on the track is by inserting n‑1 points at an equal distance between the two points, and according to the track The handwriting presentation width of the two adjacent points on the top is n-1 points linearly inserted into the n-1 handwriting presentation width, and finally in the n+1 points, for all adjacent two points, through these two points and "and this Two points, the handwriting at these two points presents width, handwriting inclination angle related "four auxiliary points, and draws six straight line segments to realize. The invention solves the problems that existing touch-writing products present dull handwriting, obvious characteristics of computer writing, and cannot reflect the pen styles of different writers.

Description

Method for presenting handwriting input on touch screen as handwriting with stylus pen characteristics

Technical field:

The invention relates to a method for presenting handwriting written on a touch screen, in particular to a method for presenting a single-point track written on a touch screen as characteristic handwriting of a type pen.

technical background:

With the rapid development of electronic display technology and touch screen technology, touch display screens have been widely used in interactive computer system equipment, such as: various interactive electronic board systems used in classroom teaching, various smart phones and handheld devices. In these devices, the function of handwriting input is provided. We all know that the handwriting of the existing touch screen writing input is essentially a single-point track sequence, so most of the handwriting input products directly link the track points with straight lines to display the lines that conform to the input track, and finally display the symbols to be input, different National phonetic elements. This kind of handwriting presents, handwriting is stiff, and computer writing characteristic is obvious, can't reflect the pen style of different writers at all. Along with the application and popularization of handwriting input, what method can computer software use to present the trajectory of this single point sequence, according to the characteristics of the trajectory formation during touch writing, as beautiful and beautiful handwriting (such as fountain pen, pen, etc.) with the characteristics of ordinary writing pens? Shape pens such as chalks, writing brushes, etc.) are the problems that everybody pays close attention to research always. Some methods and patents have also appeared during these researches: such as CN 103257735A "Stroke Presentation Method and Electronic Device for Handwriting Input", Application No. 201510401837.1 "Writing Handwriting Presentation Method and Device Applied to Brush", etc., but none of them have Works that out nicely. The solution to this problem is not very important to the Chinese character recognition of some handheld devices, but for the touch writing equipment used in one-to-many communication places, such as the interactive electronic blackboard system products for classroom teaching, it is crucial to solve this problem important. Because whether it can present beautiful and beautiful handwriting with the characteristics of ordinary writing pens when touching and writing, and whether it can present the characteristics of blackboard writing (writing) of different teachers, directly affects the popularization and application of the interactive electronic blackboard system in classroom teaching.

In response to this problem, we have carried out a large amount of research on the general characteristics of common writing pen handwriting (such as pens, chalks, brushes, etc.), and obtained the "Touch Screen The technical solution of "Method for Presenting Handwriting Input Single Point Trajectory as Characteristic Handwriting of a Type Pen", its use in the touch writing trajectory presentation software has a great impact on the popularization and application of touch screen handwriting input products, especially the interactive electronic blackboard system in classroom teaching has great practical significance.

Invention content:

The purpose of the present invention is to solve the problems caused by using the method of "directly linking track points with straight lines and displaying lines conforming to the input track" when presenting handwriting input products using ordinary touch screens (i.e. non-pressure screens). The handwriting is dull, the computer writing features are obvious, and the pen styles of different writers cannot be reflected. A method for presenting a single-point track of a handwriting input on a touch screen as a handwriting with a pen characteristic is provided.

In order to help understand the present invention, at first the basic content of handwriting presentation method is described as follows:

The core of any presentation method for touch-writing tracks is to obtain the coordinates and other features of any two adjacent track points on the track, and then the presentation method between the two points. This core determines the presentation of a stroke with several track points, and then determines the presentation of all handwriting.

The handwriting presentation of each stroke track is realized by repeating the handwriting presentation of two adjacent points on the track.

On a stroke, there are multiple track points, and each point has a handwriting display width, and the handwriting display width of each point is m times of a relatively fixed value DrawWidth, and m is a real number between 1 and k (k is An integer, generally an integer between 5-20), DrawWidth*1 is the minimum width of the handwriting, DrawWidth*k is the maximum width of the stroke, the m corresponding to each point is moved to this point by touching the adjacent point The speed is determined by k, and the value of m is equal to this speed divided by k. When a point is the starting point of the stroke trajectory or the speed of moving from an adjacent point on the trajectory to this point is less than a certain threshold, the width of the handwriting at this point is the maximum width of the handwriting. DrawWidth*k; so DrawWidth*k can also be Called the starting stroke rendering width of the stroke.

The handwriting presentation of two adjacent points on each stroke trajectory is by inserting n-1 points at an equal distance between the two points, and inserting n-1 points linearly according to the handwriting presentation width of two adjacent points on the trajectory. Width of the handwriting presenting, finally in the n+1 points, for all adjacent two points, through these two points and "with these two points, the handwriting presenting width at these two points, and the handwriting inclination angle related" four Auxiliary points are realized by drawing six straight line segments.

To achieve the above object, the present invention provides the following technical solutions:

A method for presenting a handwriting input single-point trajectory on a touch screen as a handwriting with a characteristic pen, comprising the following steps:

1. Initialization

1. Set a timer J (counter) to record the touch movement time from the previous point to the next point of the two adjacent points on the track;

2. Define three arrays A(n), B(1,n), C(1,3), and the value range of n is generally an integer from 3 to 100:

A(0) and A(n) in A(n) are used to store the handwriting width of the previous point and the next point of two adjacent points on the track respectively, and A(1)...A(n-1) is used to store the track Width of the handwriting at the intermediate equidistant interpolation point between two adjacent points above;

[B(0,0), B(1,0)], [B(0,n), B(1,n)] are respectively used to store the coordinates of the previous point and the next point of two adjacent points on the trajectory, [B(0,1), B(1,1)]…[B(0,n-1), B(1,n-1)] stores the coordinates of the intermediate equidistant interpolation points between two adjacent points on the trajectory ;

[C(0,0), C(1,0)], [C(0,1), C(1,1)], [C(0,2), C(1,2)], [C (0,3), C(1,3)] are respectively used to store the coordinates of the four auxiliary points 1, 2, 3, and 4 required for handwriting presentation. These four points are related to [B(0 , h), B(1,h)], [B(0,h+1), B(1,h+1)], point [B(0,h), B(1,h)], [ B(0, h+1), the handwriting at B(1, h+1)] presents width A(h), A(h+1) and handwriting slope angle (0<=h<=n-1 );

3. Define the basic width integer constant DrawWidth of a straight line. The value range is generally 1-10. Changing it can change the thickness of the overall handwriting;

4. Define a constant k that determines the maximum handwriting width of each stroke. The value range is generally an integer between 5 and 20. Changing it can also change the thickness of the overall handwriting presentation;

5. Define the inclination angle constant G of the starting stroke of a stroke, with a value range of 0 to 60 degrees, which is the inclination angle of the vertical line between the handwriting line and the single-point moving track when the stroke is starting;

6. Define a stroke angle variable P, which is used to store the angle between the handwriting line and the X-axis that all handwritings need to be inclined.

2. Obtain the coordinates of the next touch point (or the first touch point) of the touch track, assign the coordinates to [B(0,n), B(1,n)], and determine whether it is the first touch point, if so: set The maximum handwriting display width DrawWidth*k is assigned to A(n), the timer J is cleared, and the timing starts, and then go to step 3 (7); if not go to the next step;

3. The specific steps for presenting the handwriting of two adjacent points on the trajectory are as follows:

(1) Calculate the distance between two points by [B(0,0), B(1,0)], [B(0,n), B(1,n)] coordinates;

(2) The above distance is divided by the value of the timer J to obtain the touch movement speed between two adjacent points on the track, the timer J is cleared, and the timing is restarted;

(3) Divide the maximum handwriting width DrawWidth*k of the stroke by the touch movement speed between two adjacent points to obtain the width of the handwriting at the next point, and assign a value to A(n); if the speed is less than a certain threshold, use Maximum handwriting presents the width DrawWidth*k to present the pen width A (n) assignment for the handwriting of the latter point;

(4) According to the coordinate values of two adjacent points on the trajectory of [B(0, 0), B(1,0)], [B(0, n), B(1, n)], use equidistant interpolation method, insert n-1 points between two points, calculate the coordinates, and assign them to [B(0,1), B(1,1)]...[B(0,n-1), B(1, n-1)] in; according to the value of width A(0) and A(n) of the adjacent two points on the track, the handwriting at the n-1 insertion points is calculated in a linear manner, which is A(1 )...A(n-1) assignment;

(5) According to the coordinates of two adjacent points on the trajectory [B(0,0), B(1,0)], [B(0,n), B(1,n)], calculate the line connecting the two trajectory points The angle between the vertical line and the positive direction of the horizontal coordinate axis is added to G to obtain the handwriting inclination angle P of this handwriting;

(6) For two points [B(0, h), B(1, h)] of n groups of adjacent points in n+1 points, [B(0, h+1), B(1, h +1)] for handwriting rendering (0<=h<=n-1):

① According to the coordinates at P and point [B(0, h+1), B(1, h+1)], and the handwriting display width A(h+1), calculate the two auxiliary points needed for handwriting presentation: 3 points, The coordinates of the 4 points are assigned as [C(0,2), C(1,2)], [C(0,3), C(1,3)];

② If the point [B(0, h), B(1, h)] is the starting point of a stroke, according to the coordinates and handwriting at P and point [B(0, h), B(1, h)] Presentation width A(h) (at this time is the maximum handwriting presentation width) to calculate the two auxiliary points needed for handwriting presentation. The coordinates of point 1 and point 2 are [C(0,0), C(1,0)] , [C(0,1), C(1,1)] assignment; if the point [B(0, h), B(1, h)] is not the starting point of a stroke, then [C(0,0) , C(1,0)], [C(0,1), C(1,1)] values are given in step ④ of the last handwriting presentation;

③Use DrawWidth, the basic width for drawing straight lines, to draw the following six line segments:

[B(0,h), B(1,h)]-[C(0,1), C(1,1)] (2 points);

[C(0,1), C(1,1)] (2 points) - [C(0,2), C(1,2)] (3 points)

[C(0,2), C(1,2)] (3 points) - [C(0,3), C(1,3)] (4 points)

[C(0,3), C(1,3)] (4 points) - [C(0,0), C(1,0)] (1 point)

[C(0,0), C(1,0)] (1 point) - [B(0,h), B(1,h)]

[B(0,h), B(1,h)]-[B(0,h+1), B(1,h+1)]

④ The coordinate value [C(0,3), C(1,3)] of 4 auxiliary points is assigned to the coordinate value [C(0,0), C(1,0)] of auxiliary point 1, and the auxiliary point 3 The coordinate value of the point [C(0,2), C(1,2)] assigns the coordinate value of the auxiliary point 2 points [C(0,1), C(1,1)]

5. If [B(0, h+1), B(1, h+1)] is already the last point of two adjacent points on the track, i.e. h+1=n, turn (7);

⑥h=h+1 turn ①

(7) Determine whether the point [B(0,n), B(1,n)] is the last point on the touch track, if so, go to step 4; if not, assign the value of A(n) to A(0); [B(0,n), B(1,n)] assignment and [B(0,0), B(1,0)], go to step 2;

Four, the single-point trajectory is presented as the method with the characteristic handwriting of the type pen and ends.

Beneficial effects of the present invention: the present invention aims at the problem that existing touch writing products present dull handwriting, obvious characteristics of computer writing, and cannot reflect the style of pens of different writers. , writing brush, etc.) and the touch writing characteristics that can be obtained when writing on the touch screen except the track of the touch point, the obtained "handwriting input on the touch screen" based on the ordinary touch screen (ie, non-pressure screen) presents a single point track with The technical scheme of "Method for Characteristic Handwriting of Type Pen", this scheme is used in the touch writing trajectory presentation software to make touch writing present the handwriting characteristics of ordinary pen writing, and is useful for touch screen handwriting input products, especially for interactive electronic blackboard systems. The popularization and application in classroom teaching has great practical significance.

Description of drawings

Figure 1 presents a schematic diagram of the array defined in the method

Fig. 2 presents a schematic diagram of the pen inclination angle constant G and handwriting inclination angle variable P in the method

Fig. 3 is a schematic diagram of specific steps for the presentation of two adjacent handwriting points on the track in the presentation method

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Example 1

The core of any presentation method for touch-writing tracks is to obtain the coordinates and other features of any two adjacent track points on the track, and then the presentation method between the two points. This core determines the presentation of a stroke with several track points, and then determines the presentation of all handwriting.

Basic description of the handwriting presentation method:

The handwriting presentation of each stroke track is realized by repeating the handwriting presentation of two adjacent points on the track. As shown in Figure 3B.

On a stroke, there are multiple track points, and each point has a handwriting display width. The handwriting display width of each point is m times a relatively fixed value 2 (DrawWidth value is 2), and the value of m is 1 to 10. (k takes a value of 10) between real numbers (k is an integer, generally an integer between 5-20, in this case 10), 2*1 is the minimum width of the handwriting, 2*10 is the maximum stroke The width of the handwriting. The m corresponding to each point is determined by the speed at which the adjacent point touches this point and 10(k). The value of m is equal to this speed divided by 10(k). When a point is the starting point of the stroke trajectory or the speed of moving from an adjacent point on the trajectory to this point is less than 1.1 (a certain threshold), the width of the handwriting at this point is the maximum width of the handwriting 2*10(DrawWidth*k ); so 2*10(DrawWidth*k) can also be called the starting stroke width of the stroke.

The handwriting presentation of two adjacent points on each stroke trajectory is achieved by inserting 8-1 points at an equal distance between the two points, and inserting 8-1 points linearly according to the handwriting presentation width of two adjacent points on the trajectory. Width of two handwritings, and finally in 8+1 points, for all adjacent two points, through these two points and "relevant to these two points, the width of handwriting at these two points, and the angle of inclination of handwriting" Auxiliary points are realized by drawing six straight line segments. Figure 3C...H.

As shown in Figure 1-3, a method for presenting a single-point trace of handwriting input on a touch screen as a handwriting characteristic of a type pen includes the following steps:

1. Initialization

1. Set a timer J (counter) to record the touch movement time from the previous point to the next point of the two adjacent points on the track;

2. Define three arrays A(8), B(1,8), and C(1,3), as shown in Figure 1;

In A(8), A(0) and A(8) are respectively used to store the width of the handwriting display of the previous point and the next point of two adjacent points on the track, and A(1)...A(7) are used to store the relative width on the track. The handwriting rendering width of the middle equidistant interpolation point adjacent to two points;

[B(0,0), B(1,0)], [B(0,8), B(1,8)] are respectively used to store the coordinates of the previous point and the next point of two adjacent points on the trajectory, [B(0,1), B(1,1)]…[B(0,7), B(1,7)] stores the coordinates of the intermediate equidistant interpolation point between two adjacent points on the trajectory;

[C(0,0), C(1,0)], [C(0,1), C(1,1)], [C(0,2), C(1,2)], [C (0,3), C(1,3)] are respectively used to store the coordinates of the four auxiliary points 1, 2, 3, and 4 required for handwriting presentation. These four points are related to [B(0 , h), B(1,h)], [B(0,h+1), B(1,h+1)], point [B(0,h), B(1,h)], [ B(0, h+1), the handwriting at B(1, h+1)] presents width A(h), A(h+1) and handwriting slope angle (0<=h<=7);

3. Define the basic width integer constant DrawWidth of a straight line. The value is 2. Changing it can change the thickness of the overall handwriting;

4. Define a constant k that determines the maximum handwriting width of each stroke, and its value is 10. Changing it can also change the thickness of the overall handwriting presentation;

5. Define the inclination angle constant G of the starting stroke of a stroke, with a value range of 45 degrees, which is the inclination angle of "the vertical line of the handwriting line and the single-point moving track when the stroke is starting, as shown in Figure 2;

6. Define a stroke angle variable P, which is used to store the angle between the handwriting line and the X-axis that all handwritings need to be inclined. In the example: Calculate the angle between the vertical line connecting the two track points and the positive direction of the horizontal coordinate axis, and then add it to 45 degrees (the value of G) to obtain the handwriting inclination angle P of this handwriting, as shown in Figure 2 Show;

2. Obtain the coordinates of the next touch point (or the first point) of the touch track, assign the coordinates to [B(0,8), B(1,8)], and determine whether it is the first touch point, if so: set the maximum The width of the handwriting is 2*10 (the value of DrawWidth*k, at this time the value of k is 10), assign the value to A (8), reset the timer J, start timing, go to step 3 (7); if not go to Next step;

3. The specific steps for presenting the handwriting of two adjacent points on the trajectory are as follows:

(1) Calculate the distance between two points by [B(0,0), B(1,0)], [B(0,8), B(1,8)] coordinates; as shown in Figure 3 C Show;

(2) The above distance is divided by the value of the timer J to obtain the touch movement speed between two adjacent points on the track, as shown in C in Figure 3, the timer J is cleared, and the timing is restarted;

(3) Divide the maximum stroke width 2*10 (the value of DrawWidth*k) by the touch movement speed between two adjacent points to obtain the width of the handwriting at the next point, and assign a value to A(8); if the speed is less than When 1.1 (a certain threshold value), use the maximum handwriting to present width 2*10 (the value of DrawWidth*k) to present the pen width A (8) assignment for the handwriting of the latter point; As shown in C in Fig. 3;

(4) According to the coordinate values of two adjacent points on the trajectory of [B(0, 0), B(1,0)], [B(0, 8), B(1,8)], use equidistant interpolation method, insert 8-1 points between two points, calculate the coordinates, and assign them to [B(0,1), B(1,1)]...[B(0,8-1), B(1, 8-1)], as shown in D among Fig. 3; According to the handwriting of adjacent two points on the track, present the value of width A (0), A (8) with the linear method calculation 8-1 insertion point place The width of the handwriting is assigned to A(1)...A(8-1), as shown in E in Figure 3;

(5) According to the coordinates of two adjacent points on the trajectory [B(0,0), B(1,0)], [B(0,8), B(1,8)], calculate the line connecting the two trajectory points The angle between the vertical line and the positive direction of the horizontal coordinate axis is added to 45 degrees (the value of G) to obtain the handwriting inclination angle P, as shown in F in Figure 3;

(6) Two points [B(0, h), B(1, h)] of 8 groups of adjacent points in 8+1 points, [B(0, h+1), B(1, h +1)] for handwriting presentation (0<=h<=8-1): as shown in G and H in FIG. 3 .

① According to the coordinates at P and point [B(0, h+1), B(1, h+1)], and the handwriting display width A(h+1), calculate the two auxiliary points needed for handwriting presentation: 3 points, The coordinates of the 4 points are assigned as [C(0,2), C(1,2)], [C(0,3), C(1,3)]; point [B(0, h+1), B (1,h+1)] is the equal point of the 3-point and 4-point line segments, as shown in G in Figure 3;

② If the point [B(0, h), B(1, h)] is the starting point of a stroke, according to the coordinates and handwriting at P and point [B(0, h), B(1, h)] Presentation width A(h) (at this time is the maximum handwriting presentation width) to calculate the two auxiliary points needed for handwriting presentation. The coordinates of point 1 and point 2 are [C(0,0), C(1,0)] , [C(0,1), C(1,1)] assignment, as shown in Figure 3G; if the point [B(0,h), B(1,h)] is not the starting point of a stroke, then [ The values of C(0,0), C(1,0)], [C(0,1), C(1,1)] are assigned in step ④ of the last handwriting presentation;

③ Use the basic width 2 (the value of DrawWidth) of drawing a straight line to draw the following six line segments, as shown in H in Figure 3;

[B(0,h), B(1,h)]-[C(0,1), C(1,1)] (2 points);

[C(0,1), C(1,1)] (2 points) - [C(0,2), C(1,2)] (3 points)

[C(0,2), C(1,2)] (3 points) - [C(0,3), C(1,3)] (4 points)

[C(0,3), C(1,3)] (4 points) - [C(0,0), C(1,0)] (1 point)

[C(0,0), C(1,0)] (1 point) - [B(0,h), B(1,h)]

[B(0,h), B(1,h)]-[B(0,h+1), B(1,h+1)]

④ The coordinate value [C(0,3), C(1,3)] of 4 auxiliary points is assigned to the coordinate value [C(0,0), C(1,0)] of auxiliary point 1, and the auxiliary point 3 The coordinate value of the point [C(0,2), C(1,2)] assigns the coordinate value of the auxiliary point 2 points [C(0,1), C(1,1)];

5. If [B(0, h+1), B(1, h+1)] is already the last point of two adjacent points on the track, i.e. h+1=8, turn to (7);

⑥ h=h+1 turn ①;

(7) Judge whether the [B(0,8), B(1,8)] point is the last point on the touch track, if so go to step 4; if not, assign the value of A(8) to A(0); [B(0,8), B(1,8)] assignment and [B(0,0), B(1,0)], go to step 2;

Four, the single-point trajectory is presented as the end of the method of handwriting with the characteristics of a type pen;

The rendering effect of this method is shown in Figure 3 A and B.

Claims (1)

1. a kind of touch screen hand-writing input single-point track is rendered as the method with type feature person's handwriting, which is characterized in that including Following steps：

One, it initializes

One timer J (counter) 1, is set, for recording from track adjacent 2 points of former point to the touch of latter point Traveling time；

2, three array A (n), B (1, n), C (1,3) are defined, n value ranges are 3 to 100 integer under normal circumstances：

A (0), A (n) are respectively used to adjacent 2 points of former point on storage track in A (n), width, A is presented in the person's handwriting of latter point (1) ... A (n-1) is used to store the person's handwriting presentation width of the adjacent equidistant interpolation point in 2 points of centre on track；

[B (0,0), B (1,0)], [B (0, n), B (1, n)] are respectively used to adjacent 2 points of former point, latter point on storage track Coordinate, [B (0,1), B (1,1)] ... [B (0, n-1), B (1, n-1)] store track on the adjacent equidistant interpolation point in 2 points of centre Coordinate；

[C (0,0), C (1,0)], [C (0,1), C (1,1)], [C (0,2), C (1,2)], [C (0,3), C (1,3)] is respectively used to deposit Put 1 point of four auxiliary magnets needed when person's handwriting is presented,, 4 points of coordinate at 2 points at 3 points, this four points be with [B (0, h), B (1, H)], width is presented in [B (0, h+1), B (1, h+1)], point [B (0, h), B (1, h)], the person's handwriting at [B (0, h+1), B (1, h+1)] A (h), A (h+1) and person's handwriting inclination angle relevant (0<=h<=n-1)；

3, a basic width integer constant DrawWidth for drawing straight line is defined, value range is generally 1-10, and changing it can change Become the fineness that whole person's handwriting is presented；

4, it defines one and determines that the constant k of width is presented in the maximum person's handwriting per unicursal, value range is generally whole between 5-20 Number, the fineness that whole person's handwriting is presented can also be changed by changing it；

5, unicursal first stroke of a Chinese character inclination angle constant G is defined, value range 0 to 60 is spent, and " person's handwriting line is moved with single-point when it is the stroke first stroke of a Chinese character The inclination angle of the vertical line of dynamic rail mark；

6, it defines a person's handwriting and tilts angle variable P, the angle of needs inclined person's handwriting line and X-axis is presented for storing all person's handwritings, Person's handwriting inclination angle is related with adjacent 2 points of line direction and stroke first stroke of a Chinese character inclination angle constant G；

Two, next touch point (or the first touch point) coordinate for obtaining touch track, coordinate is assigned to [B (0, n), B (1, N)], determine whether the first touch point, if：Maximum person's handwriting is presented in width D rawWidth*k assignment to A (n), timing Device J is reset, and starts timing, in going to step three (7)；If not turning in next step；

Three, adjacent 2 person's handwritings presentation is as follows on track：

(1) by [B (0,0), B (1,0)], [B (0, n), B (1, n)] two point coordinates calculate 2 points of distance；

(2) above-mentioned distance is removed in the touch movement speed of value acquisition adjacent point-to-point transmission on track of timer J, and timer J is clear Zero, restart timing；

(3) after being obtained with the touch movement speed of the maximum person's handwriting of stroke presentation width D rawWidth*k divided by adjacent point-to-point transmission Width is presented in person's handwriting at a little, is A (n) assignment；If speed is less than a certain threshold values, width is presented with maximum person's handwriting DrawWidth*k is that wide A (n) assignment of pen is presented in the person's handwriting of latter point；

(4) according to [B (0,0), B (1,0)], adjacent 2 points of coordinate value on the track [B (0, n), B (1, n)], with equidistant interpolation Method, be inserted into n-1 point in point-to-point transmission, calculate coordinate, and assignment is to [B (0,1), B (1,1)] ... [B (0, n-1), B (1, N-1 in)]；Width A (0) is presented according to adjacent 2 points of person's handwriting on track, the value of A (n) calculates n-1 with linear method and inserts Width is presented in person's handwriting at access point, is A (1) ... A (n-1) assignment；

(5) according to adjacent two point coordinates on track [B (0,0), B (1,0)], two tracing point lines [B (0, n), B (1, n)], are calculated Vertical line and transverse coordinate axis forward direction angle, then be added with G to obtain this person's handwriting and person's handwriting inclination angle P be presented；

(6) pen is carried out to [B (0, h), B (1, h)] of the n group consecutive points in n+1 point, [B (0, h+1), B (1, h+1)] at 2 points Mark is presented (0<=h<=n-1)：

It is needed 1. width A (h+1) is presented according to coordinate, the person's handwriting at P and point [B (0, h+1), B (1, h+1)] and calculates when person's handwriting is presented 3 points of two auxiliary magnets, 4 points of the coordinate wanted are [C (0,2), C (1,2)], [C (0,3), C (1,3)] assignment；

2. if point [B (0, h), B (1, h)] is the first stroke of a Chinese character point of unicursal, then according at P and point [B (0, h), B (1, h)] coordinate, Person's handwriting is presented width A (h) (being at this moment the maximum person's handwriting presentation width of person's handwriting) and calculates two auxiliary magnets 1 needed when person's handwriting is presented Point, 2 points of coordinate are [C (0,0), C (1,0)], [C (0,1), C (1,1)] assignment；If point [B (0, h), B (1, h)] is not one The first stroke of a Chinese character point of picture, then [C (0,0), C (1,0)], [C (0,1), C (1,1)] value be upper primary person's handwriting present the 4. step assign It gives；

3. the basic width DrawWidth using picture straight line draws following six line segments：

[B (0, h), B (1, h)]-[C (0,1), C (1,1)] (2 points)

[C (0,1), C (1,1)] (2 points)-[C (0,2), C (1,2)] (3 points)

[C (0,2), C (1,2)] (3 points)-[C (0,3), C (1,3)] (4 points)

[C (0,3), C (1,3)] (4 points)-[C (0,0), C (1,0)] (1 point)

[C (0,0), C (1,0)] (1 point)-[B (0, h), B (1, h)]

[B (0, h), B (1, h)]-[B (0, h+1), B (1, h+1)]

4. the coordinate value [C (0,3), C (1,3)] that 4 points of auxiliary magnet assigns the coordinate value [C (0,0), C (1,0)] of 1 point of auxiliary magnet, auxiliary Help the coordinate value [C (0,1), C (1,1)] of a little 3 points of coordinate value [C (0,2), C (1,2)] 2 points of auxiliary magnet of imparting；

5. [if B (0, h+1), B (1, h+1)] has been adjacent 2 points of latter point on track, i.e. h+1=n turns (7)；

6. 1. h=h+1 turns；

(7) judge whether [B (0, n), B (1, n)] point is last point in touch track, if so, going to step four；If it is not, then A (n) value assigns A (0)；[B (0, n), B (1, n)] assignment and [B (0,0), B (1,0)], go to step two；

Four, single-point track is rendered as that there is the method for type feature person's handwriting to terminate.