JPH05257448A - Outline data generation device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a contour line data creation device capable of always making a specific contour line portion common to a part of the contour lines of a large number of characters almost the same standard shape. [Structure] When partial correction is selected, a contour line of a predetermined Chinese character is displayed, and when "scale" in the menu is designated and the start point of the scale-corresponding portion is designated, the segment 30 of the scale-corresponding portion is defined ( S40), the three dimension data of the segment 30 are calculated and stored in the RAM 20 (S42). Based on this size data and the scale data read from the specific contour data memory 12, the size data closest to the size data stored in the RAM 20 is selected (S44), and the corrected specific contour segment 31 based on this data is selected. Is displayed as a broken line (S4
8). Then, when "execute" is instructed, the data of the scale-corresponding portion of the Chinese character outline is replaced with the data indicating the corrected specific outline segment 31 (S56).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a contour line data creating apparatus for creating character font data, and stores data of a plurality of types of specific contour segments commonly included as part of a contour line of a plurality of characters. The present invention relates to a method in which data for a specific contour corresponding portion of a character contour being created when character contour data is created is replaced with correction data for a particular contour segment that takes the dimensions into consideration.

[0002]

[Prior Art] Recently, "Kanji" and "Hiragana" in Japanese
In order to print many characters such as on a printing paper or to display on the display, the outline of the character is stored in the non-volatile memory as outline data, and the outline data is enlarged / reduced to a desired size. Then, conversion processing such as rotation and italic processing is performed, and the converted contour line data is converted into dot data and printed by a laser printer or the like.

By the way, when the contour line data of a large number of characters is created, the contour line data creating apparatus digitizes the image data of the character of a predetermined size designed by the designer. .. Further, in this contour line data creation device, while displaying the contour line of the character on the display based on the created contour line data, the position of the shape defining point of the displayed contour line is coordinate input device (mouse) or the like. The contour data can be corrected based on the coordinate data of the changed shape defining point.

Particularly, in the Mincho type kanji, since the character designed by the designer is the original character,
There are variations in the shapes of specific contour parts such as "accents", "scales", and "brush strokes" that should be originally the same shape that is commonly included as a part of the contour lines of many kanji in Mincho. These specific contour portions are corrected so as to have the same shape in common with many Mincho type Kanji.

[0005]

However, when correcting the shape of a specific contour portion such as "accent" or "scale" for each Chinese character of Mincho typeface on the display using the coordinate input device, a correction operation is performed. Since the shape of the specific contour portion is slightly different depending on the design ability of the operator or the correction operation time even for the same operator, the shape of the specific contour portion cannot be made constant over a plurality of characters,
There is a problem that the shapes vary.

An object of the present invention is to provide a contour line data creating apparatus which can always make a specific contour part common to a part of contour lines of a large number of characters to have substantially the same standard shape. is there.

[0007]

A contour line data creating apparatus according to the present invention receives an image input device for inputting image data, receives data for each character from the image input device, and outputs one of the characters. An image data processing means for creating contour line data defining a plurality of contour lines, a storage means for receiving the contour line data from the image data processing means and storing the data in association with a character code, and a display capable of displaying an image are included. Display means, display data creating means for reading contour line data from the storage means for the character designated by the character code, and creating contour line display data for displaying the contour line of the character on the display, and display data creating means. In a contour line data creating apparatus including display control means for receiving contour line display data from a display and displaying it on a display, A specific outline data storage means for storing a particular contour segment data for each of a plurality of types of specific contour segment included in common as a part Guo line, in the contour line of a character displayed on the display,
An end point designating means for designating one end point of a particular contour corresponding part corresponding to any of the particular contour segments on the display and a particular contour segment corresponding to the particular contour corresponding part including the end point designated by the end point designating means. Specific contour selecting means and the contour line data of the specific contour corresponding portion from the storage means, and the specific contour segment data of the specific contour segment selected from the specific contour data storage means, and using these data, the specific contour Corrected specific contour segment is corrected so as to approximate the size of the corresponding portion.Corrected specific contour segment data that calculates the corrected specific contour segment data and corrected specific contour line display data for displaying the corrected specific contour segment on the display. The calculation means for calculating and the corrected specific contour display data are received Corrected specific contour line display control means for displaying the corrected specific contour segment on the ray in accordance with the designated end point, and data change for rewriting the corresponding contour line data stored in the storage means with the corrected specific contour segment data. And means.

[0008]

In the contour line data producing apparatus according to the present invention, the contour line data of the character designated by the character code is read from the storage means by the display data producing means and the contour line display data is produced from the contour line data. The display control means receives the contour display data and displays the contour of the character on the display. In this state, the end point designating means designates one end point of the specific contour corresponding portion corresponding to any of the plurality of types of specific contour segments on the display, and the particular contour selecting means selects the end point designated by the end point designating means. When the specific contour segment corresponding to the specific contour corresponding portion including is selected, the calculating means reads the contour line data of the specific contour corresponding portion from the storage means and the specific contour of the specific contour segment selected from the specific contour data storage means. The segment data is read, and the corrected specific contour segment data that calculates the corrected specific contour segment that corrects the specific contour segment so as to approximate the size of the specific contour corresponding portion using these data is calculated. To display the corrected specific contour display data for displaying To.
As a result, the correction specific contour line display control means receives the correction specific contour line display data from the calculation means and displays the correction specific contour segment on the display in accordance with the instructed end point, and at the same time, the data changing means performs the calculation. The corresponding contour line data stored in the storage means is rewritten with the corrected specific contour segment data received from the means.

[0009]

According to the contour line data generating apparatus of the present invention, the specific contour data storage means, the end point designating means, the specific contour selecting means, the computing means, the corrected specific contour line display control means, and the data. By providing the changing means, the specific contour segment can be approximated to the size of the specific contour corresponding portion by a simple operation of designating one end point of the specific contour corresponding portion and selecting the corresponding specific contour segment. It is possible to display the corrected specific contour segment that has been corrected, and the corresponding contour line data is rewritten with the data of the corrected specific contour segment, so that the specific contour portions of many characters always have substantially the same standard shape. It is possible to create various contour line data.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. The present embodiment creates contour line data that defines the contour line of a Chinese character based on image data of the Chinese character read by an electronic scanner device, and also creates contour line data that can partially correct the outline data. This is a case where the present invention is applied to an apparatus. The contour line data creation device 1 is configured as shown in FIG. The keyboard 2 is provided with character keys such as numeric keys and various function keys. The display mechanism DM is a display controller (LCD) including a liquid crystal display 3 capable of displaying an image and a display RAM for outputting display data to the display 3.
Controller) 4. The electronic scanner device 5 is for reading an image of a Chinese character enlarged to a predetermined size and inputting image data.

The coordinate input mechanism (mouse) MM detects rotation of a ball rotatably provided in a mouse body (not shown) by a pair of sensors, and rotates in the X direction output from the pair of sensors. An arrow cursor 15 displayed on the display 3 based on the component signal and the Y-direction rotation component signal.
(See FIG. 19) In the XY coordinates assuming the display 3 on the display 3, the X direction (horizontal direction) or the Y direction (vertical direction)
Cursor control unit 7 for controlling movement to
And a designation switch 7 for designating the coordinates of the tip position of the.

The control device C basically comprises a CPU 10 and
It is composed of a ROM (program memory) 11, a ROM (specific contour data memory) 12, and a RAM 20, which are connected to the CPU 10 via a bus 9 such as a data bus. The program memory 11 stores a contour line data creation control program for creating contour data of Chinese characters, a correction control program for partially correcting a contour line, which will be described later, and the like. This contour line data creation control program receives image data of Chinese characters from the electronic scanner device 5 to create contour line data defining one or a plurality of contour lines, and the created contour line data. A contour line data storage subroutine for storing in the outline font memory 21 in association with the kanji code assigned to the kanji is stored. In the correction control program, the outline data of the Chinese character designated by the Chinese character code is read from the outline font memory 21, or the corrected specific outline segment data is subjected to the short vector process and the scaling process, and then displayed on the display 3. A display data creation subroutine for creating displayable contour line display data is stored.

By the way, for the Kanji of Mincho type, "accent" indicated by reference symbol pA in FIG. 3, "brush stroke" indicated by reference symbol pO in FIG. 4, "corner scale" indicated by reference symbol pK in FIG. In common with a plurality of contour lines in a large number of kanji, such as "scale" indicated by reference numeral pU, "Tome" indicated by reference numeral pT in FIG. 7, and "hane" indicated by reference numeral pH in FIG. There are certain contour lines included. Therefore, in the specific contour data memory 12, six types of accent shown in FIG. 9, brush stroke shown in FIG. 10, square scale shown in FIG. 11, scale shown in FIG. 12, tome shown in FIG. 13, and splash shown in FIG. For each of the specific contour segments, the specific contour segment data representing the general shape of the specific contour segment and the three types of dimension data (width (W), height (H), and length) representing the size of the specific contour segment (B)) are stored. Further, the specific contour data memory 12 is generally used for each specific contour segment in addition to the above-mentioned three types of dimension data.
Three related dimension data are stored in association with the specific contour segment data.

Therefore, in the correction control program, the accent contour corresponding portion corresponding to the "accent" pointed by the cursor 15 in the contour line of the Chinese character displayed on the display 3 is sized and shaped. An accent contour correction processing subroutine for correcting the shape of a general accent closest to the same, similarly, a brush contour contour correction processing subroutine for correcting a portion corresponding to the brush contour corresponding to the "brush pointer" designated by the cursor 15 and a cursor 15. An angle scale contour correction processing subroutine for correcting the angle scale contour corresponding portion corresponding to the "corner scale" designated by 15, and a scale contour correction processing for correcting the scale contour corresponding portion corresponding to the "scale" designated by the cursor 15. Subroutine, "Tome" pointed by cursor 15
A tome contour correction processing subroutine for correcting the toe contour corresponding portion corresponding to and a fringe contour correction processing subroutine for correcting the fringe contour corresponding portion corresponding to the “honey” designated by the cursor 15 are stored.

The outline font memory 21 of the RAM 20 stores a plurality of created contour data of Chinese characters in association with Chinese character codes. In the specific contour corresponding portion data memory 22, the contour line data of the specific contour corresponding portion designated by the cursor 15 is stored in the outline font memory 2.
It is read from 1 and stored. Data of the selected specific contour segment is read from the specific contour data memory 12 and stored in the specific contour segment data memory 23. The corrected specific contour segment data is stored in the corrected specific contour segment data memory 24.

In each of the contour line data, start data, straight line data for defining a contour segment, Bezier curve data, contour end data for instructing the end of each contour segment, and character end data are stored. The start data is composed of a start flag and XY coordinate data defining a start point, the straight line data is composed of a straight line flag and coordinate data defining an end point of the straight line, and the curve data is a curve flag and a first control point. Coordinate data of the second control point and coordinate data of the end point, the contour end data stores a contour end flag indicating the end of each contour segment, and the character end data contains the contour line data. A character end flag that indicates the end is stored. here,
Each of the plurality of coordinate data is absolute coordinate data in the global coordinate system.

In the specific contour segment data, start coordinate data (origin coordinate data of xy coordinates), straight line data, Bezier curve data, and specific contour end data are stored. Incidentally, each of the coordinate data used for the straight line data and the curve data is relative coordinate data of the local coordinate system having the starting coordinate point as the origin.

Next, the contour line data creation control routine executed by the controller C of the contour line data creation apparatus 1 will be described with reference to the flow charts of FIGS. In the figure, reference numeral Si (i = 1, 2, 3, ...) Indicates each step. When the power of the contour line data creation device 1 is turned on, this control is started, initial setting is first executed (S1), and a main menu including a plurality of items such as "new creation", "partial correction" ... It is displayed on the display 3 (S2). Then use the mouse to move the cursor 15
Move the tip of the item to the item "New" and specify switch 6
Is operated (S3: Yes), it is determined to be “new creation” based on the coordinate data corresponding to the display position of the cursor 15 (S4: Yes), and based on the image data input from the electronic scanner 5. Then, the contour line data of the Chinese character is created, and the contour line data creation processing control of storing the outline data in the outline font memory 21 in association with the Chinese character code is executed (S5), and the process returns to S3.
Since this contour line data creation processing control is general, detailed description thereof will be omitted.

Next, when the tip of the cursor 15 is moved to the item "partial correction" and the designation switch 6 is operated (S
3: Yes), it is determined to be "partial correction" (S4:
No, S6: Yes) and correction control (see FIG. 16) are executed (S7). Further, when the designation switch 6 is operated (S3: Yes), and when an item other than the items "new creation" and "partial correction" is selected by the cursor 15 (S4 / S6: No), the selection is made. The processing control of each item is executed (S8).

When the correction control is started, first, the outline data of the Kanji code designated by the keyboard 2 is read from the outline font memory 21 to create displayable outline display data. Causes the contour line of the Chinese character to be displayed on the display 3, and the name of the specific contour line to be corrected is displayed on the display 3 (S20). For example, as shown in FIG. 19, the names of six types of specific contour lines to be corrected with the contour line of the selected Mincho type Kanji character “A”, “accent”, “brush stroke”, “Kaku scale”, “scale”, "Tome" and "Flip" are displayed

Next, when the designation switch 6 is operated (S21: Yes) and the correction portion is "accent" (S22: Yes), accent contour correction processing control is executed (S23), and the correction portion is changed. When "brush stroke" (S22: No, S24: Yes), brush stroke contour correction processing control is executed (S25), and when the correction portion is "corner scale" (S22 / S24: No, S2).
6: Yes), the angle scale contour correction processing control is executed (S27), and when the correction portion is “scale” (S22).
-S24 / S26: No, S28: Yes), the scale contour correction processing control is executed (S29), and when the correction portion is "tome" (S22 / S24 / S26 / S28: N).
o, S30: Yes), the tome contour correction processing control is executed (S31), and when the correction portion is “blurred” (S31).
22, S24, S26, S28, S30: No, S3
2: Yes), the edge contour correction processing control is executed (S3).
3), each returns. When the designation switch 6 is operated and the cursor 15 is pointing to a position other than "accent", "brush stroke", "square scale", "scale", "tome", and "splash" ( S22 / S2
4, S26, S28, S30, S32: No), error processing is executed (S34).

Since the above-described six types of contour correction processing control are the same, the scale-shaped contour correction processing control will be described as a representative. When the scale contour correction processing control is started, first, the designation switch 6 is operated each time the cursor 15 designates the start point and the end point of the desired scale-corresponding portion of the Chinese characters displayed on the display 3 by a plurality of contour lines. Is operated to correct the scale corresponding segment 30
(See FIG. 20) is defined (S40), and the contour line data of the defined segment 30 is read from the outline font memory 21 and stored in the specific contour corresponding portion data memory 22 as the specific contour corresponding portion data (S4).
1) Based on the specific contour corresponding part data stored in the data memory 22, three dimensions of the scale corresponding part segment 30, that is, width (w), height (h) and length (b) are calculated respectively. And is temporarily stored in the buffer of the RAM 20 (S42).

Next, the scale-specific contour segment data and a plurality of sets of dimension data (W, H, B) are read from the specific contour data memory 12 and stored in the specific contour segment data memory 23 (S43). Based on the set of dimension data (W, H, B) and the dimension data (w, h, b), the dimension data W ₀ , H ₀ , B ₀ closest to each dimension data w, h, b are respectively obtained. It is selected (S44), and the correction process for correcting the specific contour corresponding portion data is executed (S44).
45).

That is, in the specific contour segment data of the scale shown in FIG. 12, start coordinate data (origin coordinate data (0,0)), two Bezier curve data, and two straight line data are stored. That is, the first curve data includes the first control point coordinates (P0X, P0Y) and the second control point coordinates (P1X, P1).
Y), end point coordinates (P2X, P2Y), second curve data has first control point coordinates (P3X, P3Y), second control point coordinates (P4X, P4Y), end point coordinates (P5X, P5Y), first straight line End point coordinates (P6X, P6
Y) and the second straight line data store the end point coordinates (P7X, P7Y), respectively. Therefore, in the specific contour segment data of this scale, OW = P7Y-P0Y, OH = P6Y
If −P0Y and OB = P7X−P2X are set, each coordinate of the corrected specific contour segment data is obtained as follows.

P0x = P0X × B ₀ / OB p0y = P0Y × H ₀ / OH p1x = P1X × B ₀ / OB p1y = P1Y × H ₀ / OH p2x = P2X × B ₀ / OB p2y = P2Y × H ₀ / OH p3x = P3X × B ₀ / OB p3y = P3Y × H ₀ / OH p4x = P4X × B ₀ / OB p4y = P4Y × H ₀ / OH p5x = P5X × B ₀ / OB p5y = P5Y × H ₀ / OH p6x _{= P6X × B 0 / OB p6y} = P6Y × H 0 / OH p7x = P7X × B 0 / OB p7y = P7Y × H 0 / (OH-OW)

Next, in order to match the start coordinates of the corrected specific contour segment data obtained as described above with the start coordinates of the specific contour corresponding portion data, each coordinate of the scaled corrected specific contour segment data which is a relative coordinate system. The data is converted into absolute coordinate data, which is an absolute coordinate system, and stored in the corrected specific contour segment data memory 24 (S4).
6). That is, assuming that the x coordinate of the start point of the corrected specific contour segment data is psx and the y coordinate is psy, each coordinate of the corrected specific contour segment 31 is obtained as follows. _{p0x 1 = psx + p0x p0y 1} = psy + p0y p1x 1 = psx + p1x p1y 1 = psy + p1y p2x 1 = psx + p2x p2y 1 = psy + p2y p3x 1 = p2x 1 + p3x p3y 1 = p2y 1 + p3y p4x 1 = p2x 1 + p4x p4y 1 = p2y 1 + p4y p5x 1 = P2x ₁ + p5x p5y ₁ = p2y ₁ + p5y p6x ₁ = p5x ₁ + p6x p6y ₁ = p5y ₁ + p6y p7x ₁ = p6x ₁ + p7x p7y ₁ = p6y ₁ + p7y

Next, the corrected specific contour segment display data that can be displayed is calculated based on the corrected specific contour segment data (S47), and the corrected specific contour segment 31 is displayed on the display 3 by a broken line by the corrected specific contour segment display data. It is displayed (48). For example, as shown in FIG. 20, the corrected specific contour segment 31 is displayed on the display 3 by a broken line with its start position aligned with the start position of the scale-corresponding partial segment 30. Next, as shown in FIG. 21, for example, the screen display is switched and the dimension change screen is displayed on the display 3.

Next, when the designation switch 6 is operated (S50: Yes), and "execute" is instructed at the tip of the cursor 15 (S51: No, S54: Ye).
s), the screen is switched to the Chinese character display screen, the corrected specific contour segment 31 displayed by the broken line is displayed by the solid line, the display of the scale-corresponding partial segment 30 is erased (S55), and the outline font memory 21 is displayed. The contour line data corresponding to the segment data of the scale-corresponding portion is rewritten with the corrected specific contour segment data (S56), and this control is ended and the process returns.

Further, when the designation switch 6 is operated (S50: Yes), and "stop" is instructed at the tip of the cursor 15 (S51 / S54: No, S5).
7: Yes), the screen is switched to the Chinese character display screen, the display of the corrected specific contour segment 31 is erased, and each memory 2 is displayed.
Cancel processing such as clearing 2 to 24 is executed (S5
8) Return.

Furthermore, when the designation switch 6 is operated (S50: Yes), and when the "dimension change symbol" is indicated at the tip of the cursor 15 (S51: Yes),
The changed dimension value is displayed separately from the dimension data W ₀ , H ₀ , B ₀ selected in S44 (S52), and the changed dimension data is newly dimension data W ₀ , H ₀ , B respectively.
_It is set to ₀ (S53), and the process proceeds to S45. here,
Each size that can be changed is limited to the size of a plurality of sets of size data (W, H, B) stored in the specific contour data memory 12. For example, as shown in FIG.
When the designating switch 6 is operated by instructing the size increase symbol “Δ” of the height (H) with, the width larger than “20” and the specific contour are displayed to the right of the width dimension “20” already displayed. The height dimension of the scales stored in the data memory 12, for example, "30" is read and displayed. Then, this dimension “30” is set as new height dimension data H ₀ .

As described above, the start point and the end point of the specific contour corresponding portion of the contour line of the Mincho type Kanji displayed on the display 3 are designated, and the accent or scale corresponding to the specific contour corresponding portion is displayed. By simply selecting a specific contour segment, the specific contour corresponding portion is changed and displayed based on the corrected specific contour segment data obtained by correcting the specific contour segment data stored in advance in the specific contour data memory, and the corrected specific contour is also displayed. Since the corresponding outline data in the outline font memory 21 is rewritten with the segment data, it is possible to easily correct the specific outline portions of a large number of Mincho type Kanji characters to the same shape and a standard and well-balanced shape. ..

It is also possible to store two or three types of six types of specific contour segment data such as accents and scales in the specific contour data memory 12 and select one from these segment data. In S40 of the scale contour correction processing control, only the start point of the scale-corresponding portion may be designated. The specific contour data memory 12 can be provided in an external storage device such as a floppy disk or a ROM card. It is also possible to configure the contour line data creation device 1 using a tablet, a light pen, or the like as the coordinate input mechanism MM in addition to the mouse. It is needless to say that the present invention can be applied to various contour line data creation devices for creating contour line data of Roman characters other than the characters of Mincho type.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing a configuration of the present invention.

FIG. 2 is a block diagram of a control system of the contour line data creation device.

FIG. 3 is an explanatory diagram illustrating a specific contour segment of an accent.

FIG. 4 is an explanatory diagram illustrating a specific contour segment of a brush stroke.

FIG. 5 is an explanatory diagram illustrating a specific contour segment of a square scale.

FIG. 6 is an explanatory diagram illustrating a specific contour segment of a scale.

FIG. 7 is an explanatory diagram illustrating a specific contour segment of a toe.

FIG. 8 is an explanatory diagram illustrating a specific contour segment of a blade.

FIG. 9 is a diagram showing accent specific contour segment data and dimension data.

FIG. 10 is a diagram showing specific contour segment data and size data of a brush stroke.

FIG. 11 is a diagram showing specific contour segment data and size data of a square scale.

FIG. 12 is a diagram showing specific contour segment data and size data of a scale.

FIG. 13 is a diagram showing specific contour segment data and size data of a toe.

FIG. 14 is a diagram showing specific contour segment data and size data of a blade.

FIG. 15 is a schematic flowchart of a routine for contour line data creation control.

FIG. 16 is a schematic flowchart of a correction control routine.

FIG. 17 is a part of a schematic flow chart of a routine for scale-contour correction processing control.

FIG. 18 is a part of a schematic flowchart of a routine for scale contour correction processing control.

FIG. 19 is a diagram showing a display example of names of Mincho type Kanji and six types of specific contour lines.

FIG. 20 is a diagram showing a display example of a segment corresponding to a scale contour to be corrected and a corrected specific contour segment.

FIG. 21 is a diagram showing a display example of a dimension change screen for a corrected specific contour segment.

[Explanation of symbols]

 1 Contour Line Data Generation Device 3 Liquid Crystal Display 5 Electronic Scanner 6 Designating Switch 10 CPU 11 ROM (Program Memory) 12 Specific Contour Data Memory 15 Arrow Cursor 20 RAM 21 Outline Font Memory 24 Corrected Specific Contour Segment Data Memory C Controller DM Display Mechanism MM coordinate input mechanism

Claims (1)

[Claims] 1. An image input device for inputting image data, and image data for receiving data for each character from the image input device and creating contour line data defining one or a plurality of contour lines of each character. Processing means, storage means for receiving contour line data from the image data processing means and storing it in association with a character code, display means including a display capable of displaying an image, and storage means for a character designated by the character code Display data creating means for creating the outline display data for reading the outline data and displaying the outline of the character on the display, and display control means for receiving the outline display data from the display data creating means and displaying it on the display. In a contour line data creating device including a plurality of types of specific rings commonly included as a part of a plurality of contour lines in a large number of characters, A specific outline data storage means for storing a particular contour segment data for each segment, the character outline displayed on the display,
An end point designating means for designating one end point of a specific contour corresponding part corresponding to any of the specific contour segments on a display, and a specific contour segment corresponding to the specific contour corresponding part including the end point designated by the end point designating means. Specific contour selecting means for selecting, and contour line data of the specific contour corresponding portion from the storage means and specific contour segment data of the specific contour segment selected from the specific contour data storage means, and using these data. Correction of the specified contour segment so that it is closer to the size of the specific contour corresponding part Correction that defines the specified contour segment Corrected contour line data is calculated and correction is performed to display the corrected contour line on the display Calculation means for calculating data, and the corrected specific contour display data Corrected specific contour line display control means for receiving and displaying a corrected specific contour segment on the display in accordance with the designated end point, and corresponding contour line data stored in the storage means with the corrected specific contour segment data. A contour line data creating apparatus comprising: a data changing unit for rewriting.