JP2006309505A - Terminal unit, program, and document for electronic pen - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an area calculation system for instantly calculating the area of a handwritten figure by utilizing an electronic pen and a document for the electronic pen. <P>SOLUTION: A user specifies a target figure by making an entry in the document 3 by using the electronic pen 10. A stroke entered in the document 3 is acquired by a terminal device 25 as entry information. The terminal device 25 extracts the stroke from the entry information. Then, the terminal device 25 specifies the target figure based on the extracted stroke. Further, the terminal device 25 calculates the number of unit figures included in the target figure, based on the positions of unit figures included in definition information. Then, the terminal device 25 calculates the area of the target figure, based on the number of unit figures included in the target figure and the area of the unit figure included in the definition information. As a result, by utilizing the electronic pen and the document for it, the area of the handwritten figure can be calculated instantly. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a technique for calculating the area of a graphic entered on a form for an electronic pen.

  Since a graphic created by CAD (Computer Aided Design) or the like is digital data, the area can be easily calculated (for example, Patent Document 1). On the other hand, since a handwritten figure is freehand data, the area cannot be easily calculated unlike digital data.

  As a method for calculating the area of such a handwritten figure, conventionally, a method for calculating after drawing the figure as a digital image by a scanner, or a method for calculating a rough area by tracing the figure on a graph paper Etc. are known. However, such a conventional method has a problem that it takes time and labor and lacks the strictness of the area value.

  On the other hand, in recent years, pen-type input devices called “electronic pens”, “digital pens” and the like have appeared (hereinafter referred to as “electronic pens” in this specification). “Anoto pen” developed by the company is known. Anotopen is used in a pair with dedicated paper (hereinafter referred to as “dedicated paper”) on which a predetermined dot pattern is printed. In addition to the normal ink-type pen tip, the Anoto pen is equipped with a small camera for reading the dot pattern on the dedicated paper and a data communication unit. When a user writes characters on the special paper with an anotopen or checks an image that is designed on the special paper, the small camera detects the dot pattern on the special paper as the pen moves, and the user Entry data (also referred to as “stroke data”) such as written characters and images is acquired. This entry data is transmitted from the Anotopen to a terminal device such as a nearby personal computer or mobile phone by the data communication unit. The system using this anotopen can be used as an input device in place of the keyboard, and is very easy to use for users who are reluctant to use the personal computer and keyboard described above.

  Therefore, it would be convenient if the area of the graphic entered on the electronic pen form could be calculated easily and immediately using the electronic pen.

JP-A-6-274622

  This invention is made in view of the above point, and provides the area calculation system which can calculate the area of a handwritten figure easily and immediately using the electronic pen and the electronic pen form. Let it be an issue.

  One aspect of the present invention is a terminal device that calculates the area of a graphic entered in an electronic pen form printed with a dot pattern that can be recognized by an electronic pen, wherein the form calculates the area of the figure. A unit graphic as a reference is defined, and the terminal device includes definition information storage means for storing definition information regarding the position and area of the unit graphic defined in the form, and an entry entered in the form Entry information acquisition means for acquiring information; stroke extraction means for extracting a stroke written by the electronic pen from the entry information in one operation; and an object for calculating an area based on the stroke Number calculation for calculating the number of unit graphics included in the target graphic based on the target graphic specifying means for specifying the graphic and the position of the unit graphic included in the definition information Comprising stages and the number and based on the area of unit figures contained in the definition information, and a surface area calculating means for calculating the area of the object graphic.

The terminal device configured as described above is a PC or the like that can receive data from the electronic pen, and has a broad concept including not only a client terminal but also a server. The user enters a figure whose area is to be calculated on a form using an electronic pen. That is, the target graphic is designated by the stroke entered with the electronic pen. The stroke entered on the form is acquired by the terminal device as entry information. The terminal device extracts a stroke from the entry information. Here, the stroke means a line segment to be entered with a single stroke. In other words, it means a line segment, a symbol, a character, or the like entered by a single operation with the electronic pen. Then, the terminal device identifies the target graphic based on the extracted stroke. Further, the terminal device calculates how many unit graphics are included in the target graphic based on the position of the unit graphic included in the definition information. Then, the terminal device calculates the area of the target graphic based on the number of unit graphics included in the target graphic and the area of the unit graphic included in the definition information. According to this, the area of a handwritten figure can be calculated immediately using the electronic pen and the electronic pen form.
In one aspect of the terminal device, the number calculating means calculates a first total number that is the number of unit graphics that are all included in the target graphic, based on the position of the unit graphic included in the definition table. Total number calculating means; and first part number calculating means for calculating a first part number that is the number of unit graphics partially included in the target graphic based on the position of the unit graphic included in the definition table. Further, the area calculating means calculates the area of the target graphic based on the first total number, the first partial number, and the area of the unit graphic included in the definition information. According to this, the terminal device separately determines the first total number that is the number of unit graphics that are all included in the target graphic and the first partial number that is the number of unit graphics that are partially included in the target graphic. Calculated. Therefore, it becomes possible to calculate a more detailed area value.

  In another aspect of the terminal device, the start point specifying means for specifying the position coordinate of the start point of the stroke based on the coordinate data of the stroke, and the position coordinate of the end point of the stroke based on the coordinate data of the stroke End point specifying means for specifying the stroke number, stroke number specifying means for specifying the number of strokes extracted by the stroke extracting means, and stroke number determination for determining whether or not the number of strokes specified by the stroke number specifying means is one. And the combination determining means for determining whether or not the start point and the end point of the stroke are combined when it is determined that the number of strokes and the stroke number determining means are one, and the combination determining means are not combined And a first correction unit that corrects the stroke by connecting the start point and end point of the stroke with a straight line. Wherein the object graphic specifying means, on the basis of the stroke after correction by the correction means, for specifying the object graphic.

  The terminal device configured as described above specifies the position coordinates of the start point and end point of the stroke extracted from the entry information. Also, the number of strokes extracted from the entry information is specified. When the number of strokes is one, the terminal device determines whether the start point and the end point of the stroke are combined. Furthermore, when it is determined that the start point and the end point are not combined, the terminal device performs the first correction by directly combining the start point and the end point. The terminal device identifies the target graphic based on the corrected stroke, and calculates the area of the target graphic. According to this, even if it is a graphic in which the start point and the end point are not combined, the target graphic can be accurately specified by performing correction.

  In another aspect of the terminal device, when the stroke number determining unit determines that there are a plurality of strokes instead of one, the stroke extracted by the stroke extracting unit based on time information included in the entry information Order specifying means for specifying the order of entry, first joining means for connecting, based on the order of entry, an end point of a stroke other than the last and a start point of the stroke entered next to the stroke by a straight line, and the entry A second combination means for connecting the end point of the last stroke and the start point of the first stroke by a straight line based on the order; a second correction means for correcting the stroke by the first combination means and the second combination means; Are further provided.

  When the terminal device configured as described above determines that there are a plurality of strokes extracted from the entry information, the terminal device specifies the entry order of each stroke based on the time information. Then, the end point of the stroke other than the last entered stroke and the start point of the stroke entered next to the stroke are joined with a straight line. In addition, the end point of the last entered stroke and the start point of the first entered stroke are connected with a straight line. In this way, even when there are a plurality of strokes to indicate one target graphic, the terminal device can correct the target graphic based on the order of entry, so that the target graphic can be accurately identified. Become. In other words, even if there are irregularities or the like and it is difficult to fill in the form, it is possible to accurately specify the target graphic by performing the correction.

  In another aspect of the terminal device, when it is determined that the number of strokes determination means is not one, but based on the position coordinates of the start point and end point of each stroke extracted by the stroke extraction means, The apparatus further comprises second correction means for correcting the stroke by connecting the start point of one stroke and the end point of another stroke located closest to each other by a straight line.

  When it is determined that there are a plurality of strokes extracted from the entry information, the terminal device configured as described above is positioned closest to the start point of one stroke based on the position coordinates of the start point and the end point. Connect with the end point of other strokes. In this way, even when there are a plurality of strokes to show one target graphic, the terminal device can correct the target graphic based on the entry position so that the target graphic can be accurately specified. Become.

  In another aspect of the terminal device, the unit graphic defined in the form is invisible. According to this, the user who fills in the target graphic does not visually recognize the unit graphic from the form. Therefore, the target graphic can be freely specified regardless of the unit graphic.

  In another aspect of the terminal device, the form further defines a small unit figure smaller than the unit figure, and the definition information storage means includes the unit figure and small unit defined in the form. Definition information relating to the position and area of each unit graphic is stored, and the terminal device refers to the enlargement means for enlarging the vicinity of the boundary of the target graphic, and the enlarged graphic to be enlarged, in the definition table. A second overall number calculating means for calculating a second overall number that is the number of small unit graphics that are all included in the enlargement target graphic based on the position of the included small unit graphic; Second part number calculating means for calculating a second part number that is the number of small unit graphics partially included in the enlargement target graphic based on the position of the small unit graphic included in the definition table; and The area calculating means includes the first whole number, the first part number, the second whole number, the second part number, the area of the unit graphic included in the definition information, and the small number included in the definition information. Based on the area of the unit graphic, the area of the target graphic is calculated.

  In the terminal device configured as described above, the form defines not only unit graphics but also small unit graphics in advance. The terminal device, based on the position of the small unit graphic included in the definition information, the second total number of small unit graphics that are all included in the expansion target graphic and the second small unit graphic that is partially included in the expansion target graphic. The number of parts is calculated. Then, the area of the target graphic is calculated based on the second total number and the second partial number, the first total number and the first partial number, the area of the small unit graphic, and the area of the unit graphic. According to this, it is possible to calculate a more exact area value by using the small unit graphic.

  In another aspect of the present invention, there is provided a program executed by a computer for calculating an area of a figure entered in an electronic pen form on which a dot pattern recognizable by the electronic pen is printed, the form being A unit graphic serving as a reference for calculating the area is defined, and the program is defined information storage means for storing definition information regarding the position and area of the unit graphic defined in the form, and is entered in the form An entry information acquisition means for obtaining entry information, a stroke extraction means for extracting a stroke entered by the electronic pen from the entry information in one operation, and an object figure for calculating an area based on the stroke A target graphic specifying means for specifying the unit graphic, the unit graphic included in the target graphic based on the position of the unit graphic included in the definition information Number calculating means for calculating a, based on the area of unit figures contained in the number and the definition information, area calculation means for calculating the area of the object graphic, as to function the computer.

  By executing the above program by a computer, the above-described terminal device can be realized. Moreover, each aspect of the above-described terminal device can be realized in the same manner.

  In still another aspect of the present invention, there is provided an electronic pen form that is filled in by an electronic pen including an ink pen unit and a reading unit that optically reads a dot pattern, and an area of a figure based on a stroke filled in by the electronic pen A unit figure is defined as a reference for calculating. According to this, a unit graphic is defined in the form. Therefore, the terminal device or the server can easily calculate the area of the graphic entered in the form based on the position and area of the unit graphic.

  In one aspect of the form, a small unit graphic smaller than the unit graphic is further defined. According to this, the area value can be calculated more strictly based on the small unit graphic than when only the unit graphic is used.

  In yet another aspect of the form, the unit graphic and the small unit graphic are invisible. According to this, since the user cannot visually recognize the boundary line between the unit graphic and the small unit graphic, the user can freely enter the graphic whose area is to be calculated regardless of the unit graphic and the small unit graphic. Can do.

  ADVANTAGE OF THE INVENTION According to this invention, the area of a handwritten figure can be calculated immediately using an electronic pen and a form for electronic pens.

  Preferred embodiments of the present invention will be described below with reference to the drawings. First, an outline of an electronic pen used as an input device in the system of the present invention will be described.

[Electronic pen]
FIG. 1 is a diagram schematically showing how the electronic pen is used, and FIG. 2 is a functional block diagram showing the structure of the electronic pen. As shown in FIG. 1, the electronic pen 10 is used in combination with a dedicated paper 20 on which a dot pattern is printed. The electronic pen 10 includes a pen tip portion 17 similar to a normal ink pen, and a user writes characters on the dedicated paper 20 in the same manner as a normal ink pen.

  As shown in FIG. 2, the electronic pen 10 includes a processor 11, a memory 12, a data communication unit 13, a battery 14, an LED 15, a camera 16, and a pressure sensor 18 therein. The electronic pen 10 includes an ink cartridge (not shown) as a component similar to a normal ink pen.

  The electronic pen 10 does not convert the locus of the ink drawn on the dedicated paper 20 by the pen tip unit 17, but converts the locus coordinates of the movement of the electronic pen 10 on the dedicated paper 20 into data. While the LED 15 illuminates the vicinity of the pen tip 17 on the dedicated paper 20, the camera 16 reads the dot pattern printed on the dedicated paper 20 and converts it into data. That is, the electronic pen 10 can acquire a stroke generated when the user moves the electronic pen 10 on the dedicated paper 20 as image data or vector data.

  The pressure sensor 18 detects the pressure applied to the pen tip portion 17 when the user writes characters on the dedicated paper with the electronic pen 10, that is, the writing pressure, and supplies the detected pressure to the processor 11. The processor 11 switches the LED 15 and the camera 16 on and off based on the writing pressure data given from the pressure sensor 18. That is, when the user writes characters or the like on the dedicated paper 20 with the electronic pen 10, writing pressure is applied to the pen tip 17. Therefore, when the writing pressure exceeding the predetermined value is detected, it is determined that the user has started the description, and the LED 15 and the camera 16 are operated.

  The camera 16 reads the dot pattern on the dedicated paper 20 and supplies the pattern data to the processor 11. The processor 11 calculates X / Y coordinates on the dedicated paper 20 from the supplied dot pattern.

  The processor 11 acquires the writing pressure array data and the X / Y coordinate data while the description of the user is performed, and stores them in the memory 12 in association with the time stamp (time information). Therefore, data corresponding to the description content of the user is stored in the memory 12 in time series. The capacity of the memory 12 can be about 1 Mbyte, for example.

  All the acquired data is held in the memory 12 until a transmission instruction is given by the user. When the user issues a transmission instruction, the data communication unit 13 transmits the data in the memory 12 to the terminal device 25 within a predetermined distance from the electronic pen 10. Basically, once a transmission instruction is given, the electronic pen 10 transmits all the data stored in the memory 12 to the terminal device 25, so that the memory 12 is cleared. Therefore, when it is desired to transmit the same information to the terminal device 25 again after transmission, the user needs to write the description on the dedicated paper 20 again. In this case, the user only has to trace characters written on the dedicated paper 20 with an ink pen.

  The electronic pen 10 itself does not include a function button such as a transmission button, and a transmission instruction and other instructions are performed by a user checking the dedicated box provided at a predetermined position on the dedicated paper 20 with the electronic pen 10. Executed. A transmission instruction is associated with the position coordinates of the dedicated box in advance. When the processor 11 receives the position coordinates of the dedicated box, the processor 11 supplies data in the memory 12 to the data communication unit 13 and transmits the data to the terminal device 25. To do. The electronic pen 10 can indicate completion of data transmission by vibration of the electronic pen.

  The battery 14 is for supplying power to each element in the electronic pen 10, and the electronic pen 10 itself can be turned on / off by a cap (not shown) of the electronic pen, for example.

  As described above, the electronic pen 10 has a function of acquiring coordinate data and writing pressure data corresponding to characters and the like described on the dedicated paper 20 by the user and transmitting them to the nearby terminal device 25. Since the pen tip portion 17 is a normal ink pen, the content described on the dedicated paper 20 remains as an original original. That is, at the same time as describing the original paper, its contents can be digitized in the form of coordinate data in real time.

  According to the standard function of the electronic pen 10, data obtained by the electronic pen 10 is in principle in the form of coordinate data or vector data, and is not text data. However, as a standard function, the electronic pen 10 has a function of converting text into alphanumeric characters by describing it in a dedicated area provided on the dedicated paper 20.

  Also, the electronic pen 10 can hold property information (pen information and pen owner information) regarding the pen itself and its owner, and can be referred to from an application. As the pen information, a battery level, a pen ID, a pen manufacturer number, a pen software version, a subscription provider ID, and the like can be held. The pen owner information can hold nationality, language, time zone, email address, free memory capacity, name, address, fax / phone number, mobile phone number, and the like.

  In the data communication unit 13 in the above example, the electronic pen 10 is connected to the terminal device 25 by various methods such as Bluetooth (registered trademark) wireless transmission, wired transmission using a USB cable, and data transmission by contact with a terminal. It is conceivable to perform data transmission.

  Next, a method for acquiring X / Y coordinate data of contents described by the user with the electronic pen will be described. As described above, a predetermined dot pattern is printed on the dedicated paper 20. The camera 16 of the electronic pen 10 does not read the locus of ink described on the dedicated paper 20 by the user, but reads the dot pattern on the dedicated paper 20. Actually, as shown in FIG. 1, the illumination area by the LED 15 and the shooting area of the camera 16 (located in the illumination area) are deviated from the position where the pen tip portion 17 contacts the dedicated paper 20.

  The dot pattern is printed with a special ink containing carbon, and the camera 16 can recognize only the pattern with the special ink. Even if a ruled line or a frame is printed on the dedicated paper with an ink other than the dedicated ink (not including carbon), the electronic pen does not recognize them. Therefore, when creating forms such as various application forms using dedicated paper, input frames, ruled lines, cautions, etc. are printed with ink other than dedicated ink.

  In the dot pattern, as illustrated in FIG. 3, the position of each dot is associated with data. In the example of FIG. 3, the 2-bit information 0 to 3 is displayed by shifting the dot position vertically and horizontally from the reference position of the lattice (intersection of the vertical and horizontal lines). The position coordinates on the dedicated paper are determined by the combination of information expressed in this way. As illustrated in FIG. 4A, 36 dots are arranged in a grid within a range of 2 mm in length and width, and the data array (FIG. 4B) indicated by these dots is displayed on the dedicated paper. Are associated with the position coordinates. Therefore, when the camera 16 of the electronic pen 10 captures a dot pattern as shown in FIG. 4A, the processor 11 changes the data array shown in FIG. 4B based on the dot pattern data input from the camera 16. The position coordinates on the dedicated paper (that is, where the dot pattern is located on the dedicated paper) corresponding to the acquired position are calculated in real time. The minimum unit for recognizing the dot pattern is 2 mm × 2 mm, and the camera 16 takes about 100 shots per second.

  Next, the dedicated paper will be described. An example of the structure of the dedicated paper is shown in FIG. As shown in the figure, the dedicated paper 20 has a dot pattern 32 printed on a mount 30 and a design 34 such as a ruled line printed thereon. The mount 30 is usually paper, and the dot pattern 32 is printed with dedicated ink containing carbon as described above. Further, the design 34 is printed with normal ink or the like. The dot pattern and the design may be printed at the same time, or one of them may be printed first.

  An example of the design 34 is shown in FIG. FIG. 6 shows an example of a certain application form 36 in which a plurality of entry fields 38 and a transmission box 39 are printed. Although it is not clearly shown in FIG. 6 and will be described in detail later, a dot pattern is actually printed on the entire surface of the application form 36, and an entry box 38 and a transmission box 39 are formed on the entire surface using ordinary ink. It is printed. The user can enter the necessary items in each entry field 38 of the application form 36 using the electronic pen 10 in the same manner as a conventional application form without being aware of the dot pattern.

  The area on the dedicated paper 20 can be roughly divided into two types. One is an entry area, in which the content described by the electronic pen 10 is handled as information as it is. In the example of FIG. 6, a plurality of entry fields 38 correspond to this. The other is a functional element, and when the corresponding area is checked with the electronic pen 10, actions, instructions, etc. defined in advance for the area are executed. The transmission box 39 in the example of FIG. 6 corresponds to this.

  The transmission box 39 is used when giving an instruction to transmit data stored in the electronic pen 10 to the nearby terminal device 25 as described above. When the user checks the transmission box 39 with the electronic pen 10, the electronic pen 10 reads the dot pattern in the transmission box. The pattern is associated with a transmission instruction, and the processor 11 in the electronic pen 10 issues a command to transmit data stored in the memory 12 to the data communication unit 13.

  The assignment of dot patterns is usually performed for each application (paper type). In other words, the dot patterns in a certain application form do not overlap in one sheet, but the same dot pattern is printed on the same application form. Therefore, when the user inputs necessary items with the electronic pen 10, it can be specified from the coordinate data on the application form which item of the application form the input item is for.

  As described above, by printing a predetermined design on the dedicated paper on which the dot pattern is printed, various application forms using the dedicated paper can be created. If the user uses the electronic pen 10 and fills in necessary items in a normal manner, the electronic data is automatically acquired.

  In the above example, the dot pattern is printed on the dedicated paper with carbon-containing ink. However, the dot pattern can be printed on ordinary paper using a printer and carbon-containing ink. Furthermore, the design on the dedicated paper can also be formed by a printer instead of printing. When dot patterns are formed on paper by a printer, different dot patterns can be formed on each sheet. Therefore, it is possible to identify and distinguish each of these sheets by the difference in the formed dot patterns.

  In the present specification, the term “printing” has a concept including not only normal printing but also printing by a printer.

  Next, transmission processing of data acquired by the electronic pen will be described with reference to FIG. The data acquired by the electronic pen 10 is mainly data of items input by the user, but usually does not include information on where the service server that is the transmission destination of the data is. Instead, information specifying the application or service related to the dedicated paper is included in the dot pattern on the dedicated paper, and the information is acquired from the dedicated paper during the user's input operation. Therefore, the terminal device 25 that has received the entry data from the electronic pen 10 first makes an inquiry to the inquiry server 26 to which service server 27 the data input to the dedicated paper should be transmitted. The inquiry server 26 has information on a corresponding service server for each dedicated paper, and in response to an inquiry from the terminal device 25, information (such as a URL) of the service server 27 that performs a service related to the dedicated paper. Reply to the terminal device 25. Then, the terminal device 25 transmits the entry data acquired from the electronic pen to the service server 27.

  In the above example, the terminal device 25, the inquiry server 26, and the service server 27 are separately configured. However, some or all of them may be configured as one device. The server described later in this embodiment also serves as the inquiry server 26 and the service server 27.

[Area calculation system]
Next, the area calculation system of the present invention will be described. FIG. 7 shows a schematic configuration of the area calculation system 100. The area calculation system 100 shown in FIG. 7 calculates the area of a figure handwritten on the electronic pen form (hereinafter referred to as “form”) 3 by the user with the electronic pen 10 easily and immediately. .

  As shown in FIG. 7, the area calculation system 100 is configured by connecting the terminal device 25 and the server 5 through the network 2. Here, one suitable example of the network 2 is the Internet. The terminal device 25 is a terminal that can exchange data via the network 2 such as a PC or a mobile phone used by a user. The server 5 is connected to a user database (hereinafter referred to as “DB”) 6.

  First, referring to FIG. 8, the outline of the figure area calculation method in this system will be described. FIG. 8 is a diagram for explaining the process of area calculation processing. The form 3 is created as the above-described dedicated paper. Although not shown, it is assumed that a transmission box having the same function as the transmission box 39 shown in FIG.

  When the user wants to calculate the area of the three-dimensional object, as shown in FIG. 8A, the user covers the object 3 and fills the form 3 with the electronic pen 10 to calculate the area. Is shown on the form 3. That is, a target figure whose area is to be calculated is specified by surrounding with a stroke. Here, the stroke means a line segment to be entered with a single stroke. In addition, the three-dimensional object is a variety of three-dimensional objects such as human beings and automobiles. Specifically, the area of the human head and spots, the damaged part of the automobile, and the like can be calculated by the area calculation system of the present invention. In other words, calculating the area of a part of the human body for medical purposes, calculating the area of the part with less hair on the head for the purpose of creating a wig, calculating the area of the damaged part of the car for repair purposes, etc. Is possible.

  The form 3 defines a unit figure that serves as a reference for calculating the area of the figure. Further, the server 5 has a definition table regarding the position and area of the unit graphic defined in the form 3.

  The electronic pen 10 acquires entry information corresponding to the entered content and temporarily stores it in the memory 12 in the electronic pen 10. The electronic pen 10 transmits the entry information to the terminal device 25 as shown in FIG. 8B at the timing when a check mark is entered in the transmission box. It is assumed that the user enters a check mark in the transmission box when the entry of the stroke specifying the target graphic is completed. The terminal device 25 receives the entry information from the electronic pen 10 and transmits it to the server 5 through the network 2. The server 5 acquires the entry information as electronic data indicating the contents entered by the user on the form 3.

  The server 5 extracts a single stroke, that is, a stroke entered with a single stroke from the acquired entry information. Then, the server 5 specifies the position coordinates of the start point and end point of the stroke based on the coordinate data of the stroke. Moreover, the server 5 specifies the number of extracted strokes. Further, the server 5 determines whether or not the start point and end point of the extracted stroke are combined. Then, the server 5 corrects the stroke entered by the user on the form 3 based on the number of extracted strokes and the determination result as to whether the start point and the end point are combined. The server 5 identifies a target graphic whose area is to be calculated based on the stroke extracted from the entry information or the corrected stroke, and calculates the area of the target graphic based on the definition table. Further, the server 5 acquires the corrected stroke image data as image data indicating the target graphic. In the case of a stroke that does not require correction, the image data of the stroke extracted from the entry information is acquired as image data indicating the target graphic.

  The server 5 assigns a user ID, which is information for identifying each user, to the user if necessary. Furthermore, using the user ID as a key, the calculated area information and the image data of the target graphic are stored in the user DB 6. Further, the server 5 identifies the entry date and time on the form 3 based on the time information included in the entry information, and stores the identified entry date and time in the user DB 6 using the user ID as a key.

  The user DB 6 also stores personal information such as the user's name, address, and telephone number using the user ID as a key. The personal information is acquired by the user terminal 25 by typing or the like and transmitted to the server 5.

  The server 5 displays a screen as shown in FIG. 8C based on the format data prepared in advance and the user's personal information, the area of the target graphic, and the image data of the target graphic stored in the user DB 6. Is created and displayed on the display screen of the terminal device 25. The user types in answers to questions on the screen if necessary. That is, the response information is acquired by the user terminal 25 by typing or the like and transmitted to the server 5. The server 5 creates an estimate based on the acquired answer information and the area of the target graphic stored in the user DB 6. Then, the server 5 transmits the created estimate data to the terminal device 25. As shown in FIG. 8D, the terminal device 25 prints the estimate on a paper medium. According to this, it is possible to easily calculate the area of the handwritten graphic by the user and to immediately issue an estimate based on the area of the target graphic.

[Form]
Next, the form 3 will be described. In the system of the present invention, a form 3 as shown in FIG. 9 is created as the dedicated paper described above. That is, as illustrated in FIG. 5, a predetermined dot pattern 32 is printed on the mount 30, and predetermined boxes and ruled lines are printed thereon. As described above, the dot pattern 32 is printed with ink containing carbon so that the electronic pen 10 can recognize it. On the other hand, the design 34 such as each box and ruled line is printed with normal (not including carbon) ink, and thus the electronic pen 10 does not recognize it.

  As shown in FIG. 9A, the form 3 defines a unit graphic 52 that serves as a reference for calculating the area of the target graphic entered with the electronic pen 10. In other words, the form 3 is composed of a plurality of unit figures 52. In FIG. 9A, for the sake of simplicity, for convenience, the boundary line of the unit graphic 52 is visible, and the form 3 has a lattice shape. However, if defined in the form 3, the boundary line of the unit graphic 52 may be invisible. Further, the unit graphic defined in the form 3 is not limited to one type, and it is assumed that a plurality of types of unit figures of various sizes are defined in the form 3.

  As shown in FIG. 9B, the user fills in the target graphic for which the area is to be calculated using the electronic pen 10 in the form 3 in which such unit graphic is defined. Although details will be described later, the server 5 calculates the area of the target graphic based on the number of unit graphics included in the target graphic entered by the user and the area of the unit graphic.

[Area calculation method]
Next, a specific method for calculating the area of the target graphic based on the number of unit graphics included in the target graphic and the area of the unit graphic will be described with reference to FIG. FIG. 10 is a diagram for explaining an area calculation method.

  The user first fills in the form 3 using the electronic pen 10. In this case, as illustrated in FIG. 10A, the server 5 identifies the target graphic 54 based on the stroke entered in the form 3. Then, the server 5 calculates how many unit graphics 52 defined in the form 3 are included in the target graphic 54. At this time, the server 5 determines the number of unit graphics (hereinafter referred to as “total unit graphics”) that are included entirely in the target graphic 54 and the unit graphics (hereinafter referred to as “partial units”) that are partially included in the target graphic 54. It is calculated by distinguishing from the number of graphics. Specifically, in FIG. 10A, the shaded unit graphic is an overall unit graphic, and the shaded unit graphic is a partial unit graphic.

  And the server 5 extracts the area of a unit figure from the definition table which has beforehand. Then, the area of the target graphic is calculated based on the calculated total number of unit graphics, the number of partial unit graphics, and the area of the unit graphics. Specifically, as shown in FIG. 10B, there is a calculation method for calculating the area of the target graphic by the product of the area of the unit graphic and the sum of the total number of unit graphics and the number of partial unit graphics. It is done. However, the present invention is not limited to this, and various calculation methods can be applied to calculate the area of the target graphic.

  Further, the server 5 may calculate the area of the target graphic using a unit graphic (hereinafter referred to as “small unit graphic”) that is smaller, that is, smaller than the unit graphic 52 in order to increase the accuracy of the area value. it can. In this case, the server 5 enlarges a certain area near the boundary of the target graphic 54 as shown in FIG. Specifically, the fixed area near the boundary of the target graphic 54 is a portion where a part of the unit graphic 52 and a part of the target graphic 54 overlap, that is, a position where the partial unit graphic is located. As shown in FIG. 10D, the server 5 calculates how many small unit graphics 56 defined in the form 3 are included in the target graphic 54 within a certain area. At this time, the numbers of the whole unit graphic and the partial unit graphic are calculated. In this way, the vicinity of the boundary of the target graphic 54 is enlarged, and the smaller small unit graphic 56 is used for further detailed analysis. That is, the accuracy of the area value of the target graphic is increased by calculating the detailed area using the smaller small unit graphic 56.

[Correction method]
Next, a specific method for correcting the stroke to identify the target graphic will be described with reference to FIGS. 11 and 12. FIG. 11 is a diagram showing the progress of a stroke when the user puts a form 3 on a three-dimensional object and fills in the form. FIG. 12 is a diagram for explaining correction by combining a plurality of strokes with straight lines.

  When the user wants to calculate the area of a part of a three-dimensional object, as shown in FIG. 8A, the user puts the form 3 on the object 50 and fills the stroke with the electronic pen 10. specify. At this time, it is desirable that the number of strokes is one and the start point and the end point are firmly connected as shown in FIG. However, when the form 3 is filled with a three-dimensional object, that is, when the form 3 is uneven, the form 3 is often bent, and the start point and the end point are combined with one stroke. It is difficult to fill out as you do. Therefore, as shown in FIG. 11A, the trajectory of the electronic pen 10 entered in the form 3 is often a plurality of strokes, and the start point and the end point are often separated.

  The trajectory of the electronic pen 10 shown in FIG. 11A is composed of three strokes written in the order of the stroke 60, the stroke 62, and the stroke 64 as shown in FIGS. 11B to 11D. Shall be.

  In this case, first, the server 5 specifies the order of entering the three strokes based on the time information included in the entry information. That is, by analyzing the entry information, it is specified that the three strokes have been entered in the order as shown in FIGS. Further, as shown in FIGS. 12A to 12C, the server 5 specifies the position coordinates of the start point (◯) and the end point (×) of each stroke based on the coordinate data. Then, the server 5 joins the end point of the stroke 60 entered first and the start point of the stroke 62 entered second in a straight line as shown in FIG. Similarly, the end point of the second stroke 62 and the start point of the last stroke 64 are joined with a straight line as shown in FIG. Further, the end point of the stroke 64 entered last and the start point of the stroke 60 entered first are joined by a straight line as shown in FIG. Based on the stroke corrected in this way, the server 5 identifies the target graphic. Therefore, the server 5 calculates the area of the target graphic as shown by the oblique lines in FIG.

  In other words, when there are a plurality of strokes that specify one figure, the server 5 straight lines the end point of the stroke other than the last stroke and the start point of the stroke written next to the stroke based on the entry order. Join with. Further, the end point of the last stroke and the start point of the first stroke are joined with a straight line. The server 5 repeats such correction for the number of strokes.

  It is possible that the end point of the last stroke and the start point of the first stroke are combined at the time of entry by the user. In this case, the server 5 does not perform a process of connecting the start point of the first stroke and the end point of the last stroke with a straight line.

  When there is only one stroke corresponding to one graphic, the server 5 first determines whether or not the start point and end point of the stroke are combined. If they are combined, the server 5 does not perform correction and identifies the target graphic based on the stroke entered by the user. On the other hand, if not combined, the server 5 performs correction for combining the start point and end point of the stroke with a straight line.

  Although the above correction method corrects the stroke based on the order of entry, the present invention is not limited to this, and the stroke may be corrected based on the positions of the start point and end point. Specifically, based on the position coordinates of the start point and end point of each stroke, the correction may be performed by connecting the start point of a specific stroke and the end points of other strokes located closest to each other with a straight line. Good.

[server]
Next, the server 5 will be described in detail. FIG. 13 shows the internal configuration of the server 5 in the area calculation system 100 in particular. As illustrated, the server 5 includes an area calculation program 101, an entry information acquisition function 102, a stroke extraction function 103, a start point specification function 104, an end point specification function 105, a stroke number specification function 106, a combination determination function 107, a correction function 108, The target graphic specifying function 109, the image data acquisition function 110, the definition table 111, the area calculation function 112, and the user DB storage function 113 are configured. Each function is realized by the CPU included in the server 5 executing a program prepared in advance.

  The area calculation program 101 is a program that specifies a target graphic based on a stroke entered in the form 3 by the electronic pen 10 and calculates the area of the target graphic. The area calculation program 101 is a program for correcting the stroke of the electronic pen 10 on the form 3. The definition table 111 is defined in the form 3 by the area calculation program 101.

  The entry information acquisition function 102 is a function for acquiring entry information entered in the form 3 by the user using the electronic pen 10 as electronic data by executing the area calculation program 101.

  The stroke extraction function 103 is a function for extracting a stroke written by the electronic pen 10 by one stroke, that is, by one operation, from the entry information acquired by the entry information acquisition function 102.

  The start point specifying function 104 is a function for specifying the position coordinates of the start point of each stroke extracted by the stroke extracting function 102 based on the coordinate data of the stroke.

  The end point specifying function 105 is a function for specifying the position coordinates of the end point of each stroke extracted by the stroke extracting function 102 based on the coordinate data of the stroke.

  The stroke number specifying function 106 is a function for specifying the number of strokes extracted by the stroke extracting function 102.

  The combination determination function 107 determines whether the start point and the end point are combined based on the position coordinates of the start point and the end point of the stroke when the stroke number specifying function 107 specifies that the extracted stroke is one. This is a function for determining whether or not.

  The correction function 108 is a function for performing correction by connecting the start point and the end point with a straight line when the combination determination function 107 determines that the start point and the end point of the stroke are not combined. Further, when the stroke number identification function 106 identifies that there are a plurality of strokes, the correction function 108 determines the start point and end point of each stroke as the order of entry of each stroke and the position coordinates of the start point and end point of each stroke. This is a function for performing correction by connecting with straight lines based on the above.

  The target graphic specifying function 109 is a function for specifying a target graphic whose area is to be calculated based on the stroke corrected by the correction function 108. The target graphic specifying function 109 is a function for specifying the target graphic based on the stroke extracted by the stroke extracting means 103 when the combination determining function 107 determines that the start point and end point of the stroke are combined. .

  The image data acquisition function 110 is a function for acquiring image data of a stroke for specifying a target graphic from entry information. Specifically, only when the number-of-strokes specifying function 106 is specified as one and the combination determination function 107 determines that the start point and the end point are combined, the image data acquisition function 110 is the stroke extraction unit. Get the image data of the stroke extracted by. In other cases, the image data acquisition function 110 acquires the image data of the stroke corrected by the correction function 108.

  The definition table 111 is information regarding the position and area of the unit graphic defined in the form 3. The unit graphic is not limited to one type, and the form 3 defines a plurality of types of unit graphics of various sizes. Therefore, the definition table 111 is information regarding the positions and areas of a plurality of types of unit graphics.

  The area calculation function 112 is a function for calculating the area of the target graphic based on the target graphic specified by the target graphic specifying function 109 and the definition table 111. Specifically, the area calculation function 112 calculates the number of each of the whole unit graphic and the partial unit graphic included in the target graphic based on the position of the unit graphic included in the definition table 111. Then, the area calculation function 112 calculates the area of the target graphic based on the calculated total number of unit graphics and partial unit graphics and the area of the unit graphics included in the definition table 111.

  The user DB storage function 113 further has a user ID assignment function and a date / time specifying function. The user ID assignment function is a function for issuing and assigning a user ID for identifying a user who has entered the form 3 using the electronic pen 10. The date and time specifying function is a function for specifying the date and time when the stroke for specifying the target graphic is entered based on the time information included in the entry information. The user DB storage function uses the user ID assigned by the user ID assigning function as a key, the stroke image data specifying the target graphic obtained by the image data obtaining function 110, and the area value calculated by the area calculating function 112. And the entry date and time specified by the date and time specifying function are stored in the user DB 6.

  If necessary, the user DB storage function 113 may store personal information about the user in the user DB 6 using the user ID of the user as a key. Thus, by storing in the user DB 6, it is possible to easily create a display screen, an estimate, etc. as necessary.

[Area calculation processing]
Next, an area calculation process executed by the area calculation system 100 will be described. FIG. 14 is a flowchart of the area calculation process.

  When the user wants to calculate the area of a part of a three-dimensional object, the area is calculated by putting the form 3 on the object 50 and filling the stroke with the electronic pen 10 as shown in FIG. Specify the target figure you want. The electronic pen 10 acquires entry information corresponding to the entered content and temporarily stores it in the memory 12 in the electronic pen 10. When the user completes the entry of the stroke indicating the target graphic, the user enters a check mark in the transmission box. The electronic pen 10 transmits the entry information to the terminal device 25 as shown in FIG. 8B at the timing when a check mark is entered in the transmission box. The terminal device 25 receives the entry information from the electronic pen 10 and transmits it to the server 5 through the network 2. The server 5 acquires the entry information as electronic data indicating the contents entered by the user in the form 3 (step S1).

  The server 5 extracts a single operation, that is, a stroke entered with a single stroke from the acquired entry information (step S2). Further, the server 5 specifies the position coordinates of the start point and end point of the stroke based on the coordinate data of the stroke (steps S3 and S4). Moreover, the server 5 specifies the number of extracted strokes. Then, the server 5 determines whether or not the number of identified strokes is one (step S5). If the number of strokes is not one (step S5; No), the server 5 performs correction by connecting the start points and end points of a plurality of strokes with straight lines (step S7). On the other hand, when the number of strokes is one (step S5; Yes), the server 5 determines whether or not the start point and end point of the stroke are combined (step S6). When the start point and the end point are not combined (step S6; No), the server 5 performs correction by combining the start point and the end point with a straight line (step S7). On the other hand, when the start point and the end point are combined (step S6; Yes), the server 5 proceeds to step S8 without performing correction.

  In step S <b> 8, the server 5 specifies a target graphic whose area is to be calculated based on the stroke. At this time, the server 5 acquires a stroke specifying the target graphic as image data. Here, the stroke is a stroke after correction in step S7, except that there is one stroke extracted from the entry information and the start point and end point of the stroke are combined. Then, the server 5 calculates the area of the specified target graphic based on the definition table held in advance (Step S9).

  The server 5 stores the calculated area value and the image data of the target graphic in the user DB 6 using the user ID, which is information for identifying each user, as a key. Further, the server 5 specifies the date and time of entry in the form 3 based on the time information included in the entry information, and stores the specified entry date and time in the user DB 6 using the user ID as a key (step S10). . The server 5 may store user personal information in the user DB 6 using the user ID as a key. The personal information is acquired by the user terminal 25 by typing or the like and transmitted to the server 5.

  Then, the server 5 displays the area value of the target graphic on the screen of the terminal device 25 or the like based on the information stored in the user DB 6 (step S11). For example, a screen as shown in FIG. 8C is created based on the format data prepared in advance and the name of the user, the area of the target graphic, and the image data of the target graphic stored in the user DB 6. It is conceivable to display on the display screen of the terminal device 25. In this case, if necessary, the user types in an answer regarding the question on the screen. That is, the response information is acquired by the user terminal 25 by typing or the like and transmitted to the server 5. The server 5 creates an estimate based on the acquired answer information and the area value of the target graphic stored in the user DB 6. Then, the server 5 transmits the created estimate data to the terminal device 25. As shown in FIG. 8D, the terminal device 25 prints the estimate on a paper medium. According to this, it is possible to easily calculate the area of the handwritten graphic by the user and to immediately issue an estimate based on the area of the target graphic.

  In the above-described embodiment, the area calculation system 100 includes the terminal device 25 and the server 5, but the present invention is not limited to this, and the terminal device 25 also has the function of the server 5. It is good as well. That is, the terminal device 25 itself may perform the area calculation process based on the entry information acquired from the electronic pen 10.

  Moreover, in the said embodiment, although it is supposed that the user performs the entry which designates an object figure using the electronic pen 10, this invention is not limited to this, It fills in with a normal magic pen etc. After the operation, the trace of the magic pen may be traced with the electronic pen 10.

  According to the present invention, by using the electronic pen 10 and the electronic pen form 3, it is possible to immediately calculate the area of the graphic handwritten by the user. In other words, by writing a part of a three-dimensional object in handwriting on the form 3, even if the area of the part is calculated, the exact area can be easily calculated.

  In addition, according to the present invention, in order to specify a part of a three-dimensional object, the form 3 is filled in with the irregularity, and the target graphic is specified by a plurality of broken strokes. However, appropriate correction can be performed. That is, it becomes possible to accurately specify the target graphic designated by the user based on the appropriate corrected stroke.

  According to the present invention, it is possible to use as a form that can easily and immediately calculate the area of a figure entered by handwriting.

It is a figure which shows the usage pattern of an electronic pen typically. It is a functional block diagram which shows the structure of an electronic pen. It is a figure explaining the expression method of the information by the dot pattern printed on the exclusive paper. It is an example of a dot pattern and the information corresponding to it. The structure of a form composed of dedicated paper is shown. An example of a form for an electronic pen is shown. 1 shows a schematic configuration of an area calculation system. It is a figure explaining the process of an area calculation process. It is an example of a form used in the present invention. It is a figure explaining an area calculation method. It is a figure which shows progress of a stroke when a user puts a form on a three-dimensional object and fills in. It is a figure explaining the correction | amendment by combining a some stroke with a straight line. FIG. 8 is a functional block diagram of a server included in the area calculation system shown in FIG. 7. It is a flowchart of an area calculation process.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 ... Network 10 ... Electronic pen 11 ... Processor 12 ... Memory 13 ... Data communication unit 14 ... Battery 25 ... Terminal device 26 ... Inquiry server 27 ... Service server 100 ... Area processing system

Claims (17)

A terminal device that calculates the area of a figure written on a form for an electronic pen printed with a dot pattern that can be recognized by an electronic pen,
The form is a unit graphic that defines the basis for calculating the area of the graphic,
The terminal device
Definition information storage means for storing definition information regarding the position and area of the unit graphic defined in the form;
Entry information acquisition means for acquiring entry information entered in the form;
Stroke extraction means for extracting a stroke written by the electronic pen in one operation from the entry information;
Based on the stroke, a target graphic specifying means for specifying a target graphic for calculating an area;
Number calculation means for calculating the number of unit graphics included in the target graphic based on the position of the unit graphic included in the definition information;
An area calculating means for calculating the area of the target graphic based on the number and the area of the unit graphic included in the definition information. The number calculating means is
First overall number calculating means for calculating a first overall number that is the number of unit graphics that are all included in the target graphic, based on the position of the unit graphic included in the definition table;
First part number calculating means for calculating a first part number that is the number of unit graphics partially included in the target graphic based on the position of the unit graphic included in the definition table;
2. The area calculation unit according to claim 1, wherein the area calculation unit calculates an area of the target graphic based on the first total number, the first partial number, and an area of a unit graphic included in the definition information. Terminal equipment. Starting point specifying means for specifying the position coordinates of the starting point of the stroke based on the coordinate data of the stroke;
End point specifying means for specifying the position coordinates of the end point of the stroke based on the coordinate data of the stroke;
A stroke number specifying means for specifying the number of strokes extracted by the stroke extracting means;
Stroke number determining means for determining whether or not the number of strokes specified by the stroke number specifying means is one;
When it is determined that the number of strokes determination unit is one, a combination determination unit that determines whether or not the start point and the end point of the stroke are combined;
And a first correction unit that corrects the stroke by connecting a start point and an end point of the stroke with a straight line when the combination determination unit determines that the combination is not combined.
The terminal device according to claim 1, wherein the target graphic specifying unit specifies the target graphic based on a stroke corrected by the correction unit. An order specifying means for specifying the order of entry of strokes extracted by the stroke extracting means based on time information included in the entry information when it is determined that the number of strokes determining means is not one but multiple; ,
Based on the order of entry, a first connecting means for connecting the end point of the stroke other than the last and the start point of the stroke entered next to the stroke with a straight line;
A second connecting means for connecting the end point of the last stroke and the start point of the first stroke with a straight line based on the order of entry;
The terminal device according to claim 3, further comprising: a second correction unit that corrects the stroke by a first combination unit and a second combination unit.   When it is determined that the number of strokes determining means is not one but a plurality of strokes, based on the position coordinates of the start and end points of each stroke extracted by the stroke extracting means, the closest start point of one stroke The terminal device according to claim 3, further comprising: a second correction unit that corrects the stroke by connecting the end point of another stroke positioned at a straight line.   6. The terminal device according to claim 1, wherein the unit graphic defined in the form is invisible. The form is further defined with a small unit graphic smaller than the unit graphic,
The definition information storage means stores definition information related to the position and area of each unit graphic and small unit graphic defined in the form,
The terminal device
An enlarging means for enlarging the vicinity of the boundary of the target graphic;
The second whole number which refers to the enlarged figure to be enlarged and calculates a second whole number which is the number of small unit figures all included in the figure to be enlarged based on the position of the small unit figure included in the definition table. A number calculating means;
A second part number that refers to the enlargement target figure and calculates a second part number that is the number of small unit figures partly included in the enlargement target figure based on the position of the small unit figure included in the definition table A calculation means, and further,
The area calculating means includes the first whole number, the first part number, the second whole number, the second part number, the area of the unit graphic included in the definition information, and the small unit graphic included in the definition information. The terminal device according to claim 2, wherein the area of the target graphic is calculated based on the area of the object. A program that is executed by a computer that calculates the area of a graphic that is written in a form for an electronic pen printed with a dot pattern that can be recognized by an electronic pen,
The form is defined as a unit figure that serves as a reference for calculating the area of the figure,
The program is
Definition information storage means for storing definition information about the position and area of the unit graphic defined in the form;
Entry information acquisition means for acquiring entry information entered in the form,
Stroke extracting means for extracting a stroke written in one operation by the electronic pen from the entry information;
A target graphic specifying means for specifying a target graphic for calculating an area based on the stroke;
Number calculation means for calculating the number of unit graphics included in the target graphic based on the position of the unit graphic included in the definition information;
A program that causes the computer to function as an area calculating unit that calculates an area of the target graphic based on the number and the area of a unit graphic included in the definition information. The number calculating means is
First overall number calculating means for calculating a first overall number that is the number of unit graphics that are all included in the target graphic based on the position of the unit graphic included in the definition table;
Based on the position of the unit graphic included in the definition table, the computer further functions as a first partial number calculating means for calculating a first partial number that is the number of unit graphic partially included in the target graphic,
9. The area calculation unit according to claim 8, wherein the area calculation means calculates the area of the target graphic based on the first total number, the first part number, and the area of the unit graphic included in the definition information. Program. Start point specifying means for specifying the position coordinates of the start point of the stroke based on the coordinate data of the stroke;
End point specifying means for specifying the position coordinates of the end point of the stroke based on the coordinate data of the stroke;
Stroke number specifying means for specifying the number of strokes extracted by the stroke extracting means;
Stroke number determining means for determining whether or not the stroke number specified by the stroke number specifying means is one;
A combination determination unit that determines whether or not the start point and the end point of the stroke are combined when it is determined that the number of strokes determination unit is one;
When the combination determination unit determines that the combination is not performed, the computer is further functioned as a first correction unit that corrects the stroke by connecting a start point and an end point of the stroke with a straight line,
The program according to claim 8 or 9, wherein the target graphic specifying unit specifies the target graphic based on a stroke corrected by the correction unit. An order specifying means for specifying the order of entering strokes extracted by the stroke extracting means based on time information included in the entry information when it is determined that the number of strokes determining means is not one, but a plurality of strokes;
A first connecting means for connecting the end point of the stroke other than the last and the start point of the stroke written next to the stroke by a straight line based on the order of entry;
A second connecting means for connecting the end point of the last stroke and the start point of the first stroke with a straight line based on the entry order;
11. The program according to claim 10, wherein the computer is further caused to function as second correction means for correcting the stroke by the first combining means and the second combining means.   When it is determined that the number of strokes determining means is not one but a plurality of strokes, based on the position coordinates of the start and end points of each stroke extracted by the stroke extracting means, the closest start point of one stroke 11. The program according to claim 10, further comprising second correction means for correcting the stroke by connecting the end point of another stroke positioned at a straight line.   The program according to any one of claims 8 to 12, wherein the unit graphic defined in the form is invisible. The form is further defined with a small unit graphic smaller than the unit graphic,
The definition information storage means stores definition information related to the position and area of each unit graphic and small unit graphic defined in the form,
The program is
Enlarging means for enlarging the vicinity of the boundary of the target figure,
The second whole number which refers to the enlarged figure to be enlarged and calculates a second whole number which is the number of small unit figures all included in the figure to be enlarged based on the position of the small unit figure included in the definition table. Number calculation means,
A second part number that refers to the enlargement target figure and calculates a second part number that is the number of small unit figures partly included in the enlargement target figure based on the position of the small unit figure included in the definition table Further causing the computer to function as calculation means,
The area calculating means includes the first whole number, the first part number, the second whole number, the second part number, the area of the unit graphic included in the definition information, and the small unit graphic included in the definition information. The program according to claim 9, wherein the area of the target graphic is calculated based on the area of the object. An electronic pen form that is filled in by an electronic pen including an ink pen unit and a reading unit that optically reads a dot pattern,
An electronic pen form characterized in that a unit figure as a reference for calculating an area of a figure based on a stroke entered by the electronic pen is defined.   The electronic pen form according to claim 15, wherein a small unit graphic smaller than the unit graphic is further defined.   The electronic pen form according to claim 15 or 16, wherein the unit graphic and the small unit graphic are invisible.

Images