JPH0279170A - System for storing graphic data in segment - Google Patents

Abstract

PURPOSE:To relieve the limit to preservable coordinate values by correcting coordinate values contained in a coordinate value row in accordance with a ratio calculated by a ratio calculating means and storing graphic data in a page having a ratio within a segment. CONSTITUTION:A ratio calculating means 21 calculates a ratio at which all coordinate values can be set within a range which can be expressed by graphic data on each coordinate row contained in the storing designation for a user program 1. A coordinate correcting means 22 stores a ratio of coordinate value rows in a newly produced page in a segment. The coordinate value correcting means 22 stores graphic data containing the coordinate value rows corrected by the corresponding ratio calculated by the means 21 in the newly produced page to each coordinate value row until a coordinate value row having a different ratio appears. Therefore, the limit to preservable coordinate values can be relieved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a graphic processing system, and particularly to a graphic processing system that stores graphic data in a segment that temporarily stores graphic data for redrawing a graphic or inputting a pick. Regarding the storage method in segments.

[Conventional technology]

In order to redraw figures, etc., it has been conventional practice to temporarily save figure data as shown in Figure 9 in segments according to instructions from the user program, making it possible to redraw each segment. It is being done. Figure 9 shows the coordinate values (PIX, P+v).

. . . This is a diagram showing an example of the shape of graphic data for displaying a type of graphic having points P, ~P, defined by (P - x, P - y), and each entry E1 ~ E!
has a 16 bit configuration, for example. Entry E1 contains an OP (operation code) indicating the type of figure to be displayed using this figure data (for example, whether it is a figure in which each coordinate value is connected with a solid line, or a figure whose interior is filled in, etc.). set, entry E3. E4
．． ..., El has the X and Y coordinate values pHx, pHv, ..., pH of each point P, ~P, l.

P++y is the point P1 whose coordinate values are specified in the entry E2
The total number n of ~P is set.

FIG. 10 is a diagram showing an example of the expression format of the coordinate values of the graphic data shown in FIG. 9. As shown in the figure, one coordinate value (X coordinate value or Y coordinate value) is expressed by 16 bits, and the 15th bit is the positive value of the coordinate value.

The 14th bit indicates the integer part of the coordinate value, and the 13th to 0th bits indicate the decimal part of the coordinate value. Therefore, the range W of coordinate values that can be expressed using the expression format shown in Figure 10 is - It is limited to 2<W<2.

By the way, in conventional graphic processing systems, the coordinate values that a user program can specify are limited to those that fall within the range W that can be expressed in the coordinate value expression format of the graphic data mentioned above. If a coordinate value string that contains at least one coordinate value is specified, it will be used as an error because the figure specified by the user program could not be stored in the segment in a normal manner. program was notified.

(Problem R to be Solved by the Invention) As described above, in the conventional method, for a figure that a user program can store in a segment, all the coordinate values that specify the figure are expressions of the coordinate values of the figure data. There was a restriction that it was limited to what could be expressed in the form.

The present invention relaxes the restrictions on the coordinate values that can be stored,
The purpose is to provide users with a wide range of coordinate spaces.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a method for storing graphic data in a segment, in which graphic data is stored in a segment according to an instruction from a user program to store graphic data including a coordinate value string corresponding to a graphic. For each coordinate value string included in the storage instruction from the user program, the ratio at which all coordinate values included in the coordinate value string can be converted into coordinate values within the range that can be expressed in the coordinate value expression format of the graphic data. , and the ratio of the coordinate value string to be processed this time calculated by the ratio calculation means to the ratio of the coordinate value string to be processed last time is different, so that the above-mentioned A new page is generated in the segment, the ratio of the coordinate value string that is currently being processed is stored in the new page, and the process is performed until a coordinate value string with a ratio different from the ratio stored in the new page appears. For each coordinate value string that appears in between, all coordinate values of the coordinate value string are corrected by the corresponding ratio calculated by the ratio calculation means, and the graphic data including the corrected coordinate value string is A coordinate correction means for storing in a newly generated page is provided.

[For production]

For each coordinate value string included in the storage instruction from the user program, the ratio calculation means calculates a position within a range where all coordinate values included in the coordinate value string can be expressed in the coordinate value expression format of the graphic data. ! l! Calculates a ratio that can be a value. The coordinate correction means adds a new page to the segment because the ratio of the coordinate value string to be processed this time calculated by the ratio calculation means and the ratio of the coordinate value string to be processed last time is different. The ratio of the coordinate value string that is currently being processed is stored in the new page. Further, the coordinate value correction means calculates all the coordinate values of the coordinate value string using the ratio calculation means for each coordinate value string that appears until a coordinate value string having a ratio different from the ratio stored in the new page appears. Corrected with the corresponding calculated ratio,
Graphic data including the corrected coordinate value string is stored in the newly generated page.

〔Example〕

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention, which includes a user program 1, a graphic processing system 2, and a graphic display device 3.
and a transmission line 4 that connects the graphic processing system 2 and the graphic display device 3.

The graphic processing system 2 includes a ratio calculation means 21, a coordinate correction means 22, a storage means 23 consisting of a memory, a disk, etc., a reading means 24, and an output means 25, and the graphic display device 3 includes a coordinate conversion means 32. It includes a graphic processing section 31 and a display means 33.

FIG. 2 is a diagram showing the storage contents of the storage means 23, in which a plurality of segments SE1. SE2. ..., SEm are stored, and each segment SEL, SE2 . ..., SEm are fixed-length pages P1-1 to Pl-5, P2-1 to
P2-4. -, Pm-1 to Pm-5. Additionally, a blank to the next page Pm-3 is written to the entry E1 of the page Pm-2 of the segment SEm, the data length β of the page Pm-2 is written to the entry E2, and the ratio of the coordinate data is written to the entry E3. However, entry E4~
E(k-1> and entry Ek-E(k+i) respectively contain graphic data having the same format as the graphic data shown in FIG. 9. Other pages also have page P.
It has the same configuration as m-2. Further, in the embodiment, each page has a fixed length, but it is of course possible to make each page a variable length.

FIG. 3 is a flowchart showing an example of processing by the ratio calculation means 21;
The figure is a flowchart showing an example of the processing of the coordinate correction means 22, FIG. 5 is a diagram for explaining the operations of the ratio calculation means 21 and the coordinate correction means 22, and FIG. 7 is a flowchart showing an example of processing by the outputting means 24, and FIG. 8 is a flowchart showing an example of processing by the outputting means 25.The operation of this embodiment will be described below with reference to each figure.

When the user program 1 requests the graphic processing system 2 to store graphic data in a segment, the user program 1 sends a coordinate value string, an OP code, and the number of vertices of the graphic that define the graphic corresponding to each graphic data to be stored in the segment. 3. When a storage instruction is added to the graphic processing system 2 from the user program 1, the ratio calculating means 21 in the graphic processing system 2 starts the process shown in the flowchart of FIG.

First, when a storage instruction is applied to the ratio calculation means 21, the ratio calculation means 21 initializes the counter i to 1, the ratio D11 to 1.0, and the counter N to 1 (step SL>, then the N included in the storage instruction Processing for the th coordinate value string is started (step S2).

Now, for example, the Nth coordinate value string (coordinate value string that defines the Nth figure) included in the storage instruction from user program 1 is P+ = (P+x, P+V) Pz '' (Pzx, Pzy ) P, = (Pfix, P, ly), the ratio calculation means 21 performs step S3゜S.
6. According to S9.312, the x and y coordinate values P of each point P (i-1 to n) included in the Nth coordinate value string. , P, 7 can be expressed in the coordinate value expression format of graphic data. Here, min in the flowchart is a negative limit value of the expressible range, and max is a positive limit value.

Then, the X and Y coordinate values PiX.

If one or both of piy is out of range, step S4. S5, step S7. S8, step SI0
．． 311, step S13. In S14, a new ratio DH for the Nth coordinate value sequence is calculated.

This is done in step 315. Step 316 is performed for all coordinate values of the Nth coordinate value string. And step 317
Determine whether the ratio DH of the processing result is 1.0 or not by
．． If it is determined that it is 0, the ratio is calculated in step S19, and 1.0 is notified to the coordinate correction means 22. Further, if the ratio of the processing result, i, is not 1.0, the minimum multiplier of 2 larger than the value of I is reduced in step 318, and this is notified to the coordinate correction means 22 in step S19. do. Upon notification of the ratio D8, the ratio calculation means 21 increments the counter N by +1 (step 520).
Then, it is determined whether the above-described processing has been performed on all coordinate value sequences included in the storage instruction (step 521).

If it is determined that all the coordinate value sequences have been processed, the processing is terminated, and if it is determined that the processing has not been performed, i is set to 1. After setting N to 2 (Step 5
22), the process returns to step S2.

For example, as explained in FIG. 9, the range that can be expressed in coordinate expression format is -2(min)<W<2(ma
x) and the coordinate string contains the coordinate value (-5, 0, 1, 0), then in step S3, which compares the X coordinate value with the negative limit value, Pix 2 is Fill, step 34. S5 is executed and the ratio DN is -5,
It is obtained as 0/-2, 0=2.5. Then, suppose that the check for all coordinate values is completed, the determination is NO in step S17, and the ratio is 2.5.
The final ratio data found in step 318 is DH-2
”=4.

Further, when the coordinate correction means 22 receives a storage instruction from the user program 1, it starts the process shown in the flowchart of FIG. 4, first initializing the counter N to 1 (step 531), and then Information included in the instructions (coordinate value string that defines each shape.

○P code, number of vertices of each figure) is temporarily held (step 532), and then it is determined whether N=1 (step 533). If it is determined in step S33 that N=1, the coordinate correction means 22
It is determined whether the ratio D1 to the first coordinate value sequence notified from 1 is 1.0 (step 534). If it is determined that DI = 1.0, a new segment is generated, and after storing graphic data including the first coordinate value string in the information held in step S32 in the first page of the segment, (step 535) Set the data length and ratio D+ in a predetermined portion of the page (step 53).
7), and if it is determined that D≠1.0, all the coordinate values included in the first coordinate value sequence are divided by the ratio D1 notified from the ratio calculation means 21. After storing the graphic data including the coordinate value string whose coordinate values are within the expression range in the first page of the newly generated segment (step 536), the process of step S37 is performed. For example, if the first coordinate value string temporarily held in step S32 is P+ = (Pix, Pay) Pz = (Pzx, PRY) P, l = (P, lX, P-y), The corrected coordinate value sequence is P l= (P lx/
DI, PIv/DI)Pg = (Ptx
/D+ , Pzv/D+ )P, l= (P, 1x/D
+, P-y/D+), and the graphic data including this corrected coordinate value string is stored in the first page of the segment.

If it is determined in step S33 that N≠1, the ratio of the last page of the segment in which graphic data is currently stored is determined (step 838), and then the N-th coordinate notified from the ratio calculation means 21 is calculated. The ratio to the value string is compared with the ratio obtained in step 338 (step 539), and if it is determined that DH=D, it is determined whether D, = 1.0. A determination is made (step 340).

If it is determined in step 340 that the ratio DN notified by the ratio calculation means 21 is 1.0, graphic data including the Nth coordinate value string temporarily held in step S32 is stored in the final page. If there is enough free space to do so, the graphic data is stored in the final page, or if not, a new page is generated and the graphic data is stored in that page (step 54).
1). Thereafter, the coordinate correction means 22 changes the data length that is marked in a predetermined portion of the final page. Also,
If it is determined in step S40 that DH≠1.0, if there is sufficient free space on the last page to store the graphic data including the Nth coordinate value sequence corrected by the ratio D9, then If not, generate a new page and store the above graphic data in that page (step 543).
Thereafter, the process of step 342 is performed.

Further, if it is determined in step S39 that ≠D8, it is determined whether the ratio DH for the Nth coordinate value sequence notified from the ratio calculation means 21 is 1.0 (
Step 544). If it is determined that DH=1.0, the graphic data including the Nth coordinate value temporarily held in step 332 is stored in the newly generated page (step 545), and if DH≠1.0, If it is determined that there is, the Nth coordinate value string temporarily held in step S32 is corrected by the ratio D8, and the graphic data including the corrected coordinate value string is stored in the newly generated page (step 546). When the processing in step 345 or step S46 is completed, the coordinate correction means 22 sets a blank ink to the new page in the previous page (step 547), and then sets the data length and ratio DN to a predetermined portion of the new page. Set step 548)
Then, in step 549, N is increased by +1, and then it is determined whether the above-described processing has been performed on all the coordinate value strings held in step 332 (step 550).

If it is determined that the processing for all coordinate value strings has been completed, the processing is terminated; if it is determined that the processing has not been completed, the process returns to step S33.

Therefore, for example, as shown by the dashed line in FIG.
The range W that can be expressed in the representation format of graphic data is -2<W<
2, and if the broken lines LL and L2 are stored in the segment, the following processing will be performed.

User program 1 consists of four vertices PII+ PI! +
Coordinate value sequence of P+s, P+a (1,0,1,0),<1
．． 0. -1.0).

(-1,0,-1,0) , (-1,0,1,0) ,
Four vertices P,,,PIfi p! ! , Pe4 are shown to be connected by a solid line. Information about the broken line Ll including the p code and numerical data indicating that the number of vertices is 4, and the vertices Pt+, P. +Pt3=P!
4 coordinate value sequence (0, 0, 0, 0), (0, 0, -4, 0
).

(-4,0,-4,0), (-4,0,0,0),
Four vertices P! 1. P 21P zx+ P
A storage instruction is added to the graphic processing system 2 including an OP code indicating that ta is connected with a solid line and information about the broken line L2 including a numerical value indicating that the number of vertices is four.

The ratio calculation means 21 in the graphic processing system 2 calculates the first coordinate value string (broken line L) by adding the above storage instruction.
Step 52 to start processing for the coordinate value string of L.
), four vertices P II+ P+2゜PI3I P
For the coordinate value of +4, steps S3 to S6 are performed sequentially. S9.
312 is performed to determine whether or not these are within a range that can be expressed in the coordinate value expression format of the graphic data.

Since all the coordinate values included in the coordinate value string of the broken line Ll fall within the expression range W of the coordinate values of the graphic data, step S3. S6゜S9. All determination results in S12 are No. Therefore, the ratio D1 of the coordinate value sequence of the broken line L1, which is the first coordinate value sequence, becomes 1.0, which is notified to the coordinate correction means 22. When the processing for the coordinate value string of the broken line L1 is completed, the ratio calculation means 21 starts processing for the second coordinate value string (the coordinate value string of the broken line L2).Step 32)
Four vertices P□, Pzi, Pts, P, 4
Step 33. 36. 39°S1
Processes 2 are performed sequentially. In this example, the range W that can be expressed in the representation format of the coordinate values of the graphic data is -2<W<2, so first, when the above judgment process is performed for the vertex pig, the judgment result in step S9 is YES, Vertex P.

It is determined that the Y coordinate value of −4,0 exceeds the range W. Then, by determining that the Y coordinate value -4,0 of the vertex exceeds the range W, the ratio calculation means 21 performs step 310
Process.

At this point, the ratio is the initial value 1.0, and
Since the Y coordinate value is -4,0, +mim=-2, the judgment result in step 510 is YES, and the ratio calculation means 21
performs the process of step 311, and sets the ratio to 2.0. Thereafter, by performing the above determination process on vertex P0, the determination results in steps S3 and 39 become YES, and the processes in steps 34 and 310 are performed, and by performing the above process on vertex O, step S3
The determination result is YES, and the process of step S4 is performed, but since the ratio D2 is 2.0 at that point, step S34. The SIO determination result is No, and the ratio D2 is not updated. And all the vertices P! L+Ptt+P! L P ta
After performing the processing described above for the ratio, the ratio calculation means 21 performs the processing of step 31.7. In this example, the ratio Dt
-2.0, the determination result in step 317 is NO, and the ratio calculation means 21 executes step 318.
After processing S19, D! =2''-4,0 is notified to the coordinate correction means 22.

Further, when the above-mentioned storage instruction is added from the user program 1, the coordinate correction means 22 sets the counter N to 1 (step 531), and then calculates the broken line L included in the above-mentioned storage instruction.
Step 5: Temporarily retain information about L and L2
32) Then, it is determined whether the counter N is 1 (step 533). In this case, since the counter N is 1, the determination result in step 333 is YES, and the coordinate correction means 22 performs the process in step S34. In step S34, a process is performed to determine whether the ratio D1 of the first coordinate value sequence (the coordinate value sequence of the broken line L1) notified from the ratio calculation means 21 is 1.0. In this example, the ratio D1 is 1.0, so the determination result in step 334 is YES, and the coordinate correction means 22 stores the new segment SEn on the storage means 23 as shown in FIG.
, and store graphic data including the first coordinate value sequence (coordinate value sequence of broken line L1) on the first page Pn-1 (step 535), and then store the data length and Set the ratio D+=1.0 (step 537).

When the processing for the coordinate value string of the broken line L1, which is the first coordinate value string, is completed (when the storage of the graphic data corresponding to the broken line L1 is finished), the coordinate correction means 22 sets the value of the counter N to 2 in step 349. , and then returns to the process of step S33. In step S33, the process of determining whether the value of the counter N is 1 is performed in the same manner as described above. At this time, since the counter N is 2, the determination result in step 333 is No, and the coordinate correction means 22 performs the process in step 338. In step 338, the ratio D of the last page Pn-1 of segment SEn! (1.0 in this case) is performed, followed by step 33
In step 9, a process is performed in which the ratio calculated in step 338, =1.0, is compared with the ratio Dt of the second coordinate value sequence (coordinate value sequence of broken line L2) notified from the ratio calculation means 21. In this case, the ratio of the second coordinate value sequence D! is 4.0
Therefore, the judgment result in step S39 is No.
The process of step S44 is performed. In step 544, processing is performed to determine whether Dr is 1.0. In this example, since the value is 4.0, the process of step S46 is performed.

In step S46, the second coordinate value string in the information temporarily stored in step S32 (coordinate value string of broken line L2) P Z, = (0,0,0,0) P,, = (0,0, −4,0) P zz” (−4,0,−4,0) P,, = (−4,0,0,0) is divided by the ratio Dz=4.0 notified from the ratio calculation means 21. Then, all the coordinate values in the coordinate value string are corrected so that they fall within the expression range W, and the corrected coordinate value string p,, = (0,0,0,0) p,,= (0,0,-1,0) Pzs = (-1,0,-1,0) P24 = (-1,0,0,0) As shown in Figure 6, the graphic data including S
It is stored in a new page Pn-2 in En.

The coordinate values included in this corrected graphic data correspond to the vertices of the graphic indicated by the dotted broken line L2' in FIG. 5, and all fall within the expression range W. When the graphic data including the corrected coordinate values is stored in page Pn-2, the coordinate correction means 22 sets a pointer to the new page Pn-2 in the previous page Pn-1 (step 547), and then sets the data length and The ratio is set to a predetermined portion of page Pn-2 (step 848), and the process ends.

Next, an explanation will be given of the operation when displaying a figure corresponding to the figure data stored in the storage means 23 on the display means 33.

When the user program 1 causes the display means 33 to display a figure corresponding to the figure data stored in the storage means 23,
Outputs drawing instructions including segment names. When a drawing instruction is applied from the user program 1, the successive output means 24 in the graphic processing system 2 starts the process shown in the flowchart of FIG. 7, and sequentially reads pages in the segment specified by the drawing instruction from the first page. , added to the output means 25
(Step 551).

When a page is added from the reading means 24, the output means 25 first determines whether the ratio DH of the page is 1.0, as shown in the flowchart of FIG. 8 (step 56).
1). If it is determined that the ratio is 1.0, the graphic data included in the added page is transferred to the graphic display device 3 via the transmission path 4 (step 56
5). If it is determined that the ratio D8 is not 1.0, first generate a command for coordinate transformation commensurate with the ratio D8 of the added page, and then transfer the generated command to the graphic display device 3 (step 562). Then, the graphic data included in the added page is displayed on the graphic display device 3.
(step 563), then generates a command instructing not to perform coordinate transformation and sends it to the graphic display device 3.
(step 564). Here, when a coordinate transformation command is added from the graphics processing system 2 via the transmission path 4, the graphics processing unit 31 in the graphics display device 3 retains the contents of the coordinate transformation indicated by the command. ,
For graphic data to be received thereafter, the coordinate conversion means 3
2 to perform coordinate transformation according to the retained contents, display the result on the display means 33 based on the result of the coordinate transformation, and receive a command instructing not to perform coordinate transformation. In this case, the process of displaying the figure via the coordinate conversion means 32 is stopped and normal display control is performed. Therefore, when graphic data included in a page with a ratio of 1.0 is transferred from the graphic processing system 2, the graphic display device 3 displays the ratio DH-1 as usual.
, 0, the display means 33 displays the figure defined by the figure data.
If graphics data contained in a page whose ratio is not 1.0 is transferred, coordinate transformation is performed using the coordinate conversion means 32, and the graphics data specified by the coordinate transformation is converted. The figure will be displayed on the display means 33.

Therefore, for example, if the drawing instruction from the user program 1 is to draw the graphic data stored in the segment SEn shown in FIG. 6, the following processing will be performed.

The successive means 24 is a segment) SE from the user program l.
When a drawing instruction specifying n is added, segment SE
Pages Pn-1 and Pn-2 included in page n are sequentially read out from the first page Pn-1 and added to the output means 25 (
Step 551).

When page Pn-1 is added from the reading means 24, the output means 25 transmits the graphic data included in page Pn-1 since the ratio D8 of that page Pn-1 is 1.0 (step 561). The data is transferred to the graphic display device 3 via the path 4 (step 565). As a result, the graphic display device 3 displays the graphic defined by the graphic data on the display means 33 with the ratio DH=1.0 as usual.

When page Pn-2 is subsequently added to page Pn-1, the output means 25 outputs that the ratio of page Pn-2 is 4.
．． Since it is 0 (step 561), the ratio 1)ll=
4.0, generate and output a command for coordinate transformation (step 562), then transfer the graphics command included in page Pn-2 to the graphics display device 3 (step 363), and then do not perform coordinate transformation. A command instructing this is generated and transferred to the graphic display device 3 (step 564). When the graphic display device 3 receives a command for coordinate transformation commensurate with the ratio DN=4.0 from the graphic processing system 2, it retains the contents and thereafter displays the page Pn-
When the graphic data included in 2 is added, the coordinate transformation means 32 is used to perform coordinate transformation (in this case, coordinate transformation that multiplies the X and Y coordinate values included in the graphic data by 4.0). , causes the display means 33 to display a figure defined by the figure data that has undergone coordinate transformation.

〔Effect of the invention〕

As explained above, in the present invention, the ratio calculation means calculates the ratio for each coordinate value string included in the storage instruction from the user program, and the coordinate correction means corrects the coordinate values included in the coordinate value string according to the ratio. However, since the graphic data including the corrected coordinate value string is stored in a page with the ratio within the segment, the coordinate values within the range that can be expressed in the coordinate value expression format of the graphic data are It has the effect that it can be stored in a segment without reducing accuracy, and that coordinate values that are outside the range that can be expressed in the coordinate value expression format of graphic data can be stored in a segment with only a slight loss of accuracy.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a diagram showing the storage contents of the storage means 23, and FIG. 3 is a diagram showing the ratio calculation means 21.
4 is a flowchart showing an example of the processing of the coordinate correction means 22, and FIG. 5 is a flowchart showing an example of the processing of the coordinate correction means 21. A diagram for explaining the operation of the coordinate correction means 22, FIG. 6 is a diagram for explaining the operation of the coordinate correction means 22, FIG. 7 is a flowchart showing a processing example of the successive means 24, and FIG. 8 is an output means FIG. 9 is a flowchart showing an example of processing No. 25, FIG. 9 is a diagram showing an example of the format of graphic data, and FIG. 10 is a diagram showing an example of the expression format of coordinate values. In the figure, 1... User program, 2... Graphic processing system, 3... Graphic display device, 4... Transmission path, 21... Ratio calculation means, 22... Coordinate correction means,
23... Storage means, 24... Reading means, 25...
Output means, 31... Graphic processing section, 32... Coordinate conversion means, 33... Display means. Block diagram of an embodiment of the present invention Fig. 1 Example of foot filling of Ij rod W output hand kill 21) Fig. 3 (1) Processing example of specific gravity calculation means 21 Fig. 3 (2) Processing example of specific gravity calculation means 21 ) The flowchart showing the example of the rotation of the latitude correction hand 22
Figure 5: An explanatory diagram of the operation of the index correction means 22; Figure 6: A diagram showing the operation of the ejection means 24 Processing example of figure output life/kill 25 j Show T: A, Re figure man 8 figure

Claims (1)

[Scope of Claims] In a method for storing graphic data in a segment in accordance with an instruction from a user program to store graphic data including a coordinate value string corresponding to a graphic, the method for storing graphic data in a segment comprises: For each coordinate value string included in the storage instruction, a ratio that calculates the ratio at which all coordinate values included in the coordinate value string can be converted into coordinate values within the range that can be expressed in the coordinate value expression format of the graphic data. The calculation means calculates that the ratio of the coordinate value sequence to be processed this time and the ratio of the coordinate value sequence to be processed last time calculated by the ratio calculation means are different, so that a new value is added to the segment. A page is generated and the ratio of the coordinate value string that is currently being processed is stored in the new page, and the coordinate value string that has a ratio different from the ratio stored in the new page appears before it appears. For each coordinate value string, all the coordinate values of the coordinate value string are corrected by the corresponding ratio calculated by the ratio calculation means, and the graphic data including the corrected coordinate value string is newly generated. A method for storing graphic data in a segment, the method comprising: coordinate correction means for storing in a page.