JPH0426152B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a graphic output device that prints or displays graphic data in an information processing system.

(b) Prior Art and Problems In an information processing system, methods for outputting processed figures include, for example, in the case of straight line figures;
By setting the two-dimensional coordinates X-Y and giving the respective coordinates (x _a , y _a ) and (x _b , y _b ) of two points A and B and a write command to the output device, a straight line can be output. can. However, since many types of output devices are used (laser printers, dot printers, etc.), when the same graphic data is output from different output devices, the shapes are similar, as shown in Figure 1. However, because the sizes are different or the aspect ratio is different depending on the output device, there is a drawback that visual similarity is impaired in complicated figures.

(c) Purpose of the Invention The present invention has been made in order to solve the above-mentioned drawbacks, and it is possible to easily output uniform figures, that is, figures with the same size and the same aspect ratio, even with different types of output devices. The purpose of this invention is to provide a graphic output device.

(d) Structure of the Invention The present invention provides first coordinate data processed by a processing device and first coordinate coefficient data representing the coordinate data values required for outputting a unit length in each of the horizontal and vertical directions during the processing. In a system that outputs a figure by supplying first figure data to an output device, the system includes means for specifying the type of output device to be outputted, and horizontal and vertical axis directions for each type of output device. means for storing second coordinate coefficient data representing a coordinate data value required for each unit length output; and a means for storing second coordinate coefficient data representing a coordinate data value required for each unit length output; and means for calculating second coordinate data by multiplying the data, and when the processing device outputs a graphic to the output device using the processed first graphic data, the processing device calculates second coordinate data by multiplying the first graphic data. the first of
The second coordinate coefficient data calculated based on the coordinate coefficient data of and the coordinate coefficient corresponding to the specified type of output device.
The figure output device is characterized in that it outputs a figure by supplying coordinate data of the figure to the designated output device.

There are many types of output devices, such as printers, such as laser printers and dot printers.
When coordinate data is supplied from a processing device to a printer to output a figure, the size of the output figure may differ depending on the printer, even though the coordinate data is the same. For example, the aspect ratio of printers varies depending on the model, and the coordinate data value (number of dots per unit length) required to output a unit length of coordinates often differs.

In the present invention, coordinate coefficients (coordinate data values required to output a unit length of coordinates) are introduced as parameters for determining such output coordinates. Then, coordinate coefficients are set in accordance with the type of each printer.The present invention uses these coordinate coefficients to calculate the first coordinate data X, Y output from the processing device and the coordinate coefficients at the time of processing. The apparatus is provided with means for calculating second coordinate data X', Y' to be given to the output device from the above.

For example, the coordinate coefficients intended at _the time the figure ( _coordinate ) data _is created in the processing device are _G Coordinate coefficient of direction
G _X = 24, Y axis direction coordinate coefficient G _Y = 30, X axis direction coordinate coefficient _O
Assume that the coordinate coefficient O _Y in the Y-axis direction is 28.

If the ratio _of the coordinate coefficients of the output device that outputs the _figure and the coordinate coefficients intended at _the time of _{creating the} coordinate _{data is R} =28/30. Therefore, if the coordinate data processed by the processing device is (Xm, Ym) (m=1, 2, 3, ...), then the output coordinate data (Xm',
Ym′) (m=1,2,3,…) is Xm′=( _Xm・_R R _X R _Y ) will hereinafter be referred to as the ratio coefficient.

The coordinate data Xm, Ym processed by the processing device is
It was created with the intention of coordinate coefficients G _X G _Y ,
For example, the X coordinate data Xm for outputting a length of 100 units (for example, 100 x 0.1 inch) in the X-axis direction by an output device with a coordinate coefficient of (G _X G _Y ) is 100G _X
=2400. Using this coordinate data, coordinate coefficient
When trying to print out using a printer with O _X = 16,
If given as is, the length will be 2400/16 = 150 units, which is not the intended length of 100 units. According to the present invention, the output coordinate data supplied to the printer is 2400・(16/24)=1600, and the coordinate length output by this printer is (1600/16)=100 units. The length is as expected.

Similarly, regarding the Y-axis direction, for example, the Y coordinate data Ym to output a length of 50 units is 50G _Y =
It is 1500. This Y-axis coordinate data is the coordinate coefficient O _Y
= 1500/28 = if you feed it as is to 28 printers
The length becomes 53.6 units, which is not the intended length of 50 units, and when combined with the X-axis coordinate data above, the intended aspect ratio is not achieved. According to the present invention, the output Y coordinate data to be supplied to the printer is 1500・(28/30)=1400, and the coordinate length output by this printer is (1400/28)=50 units. It's the intended length.

In this manner, according to the present invention, it is possible to output uniform figures of the same size and aspect ratio even from different printers.

(e) Examples of the invention The present invention will be explained below with reference to the drawings. FIG. 2 is a block diagram illustrating one embodiment of the present invention. Two types of printers P and Q are connected to the control unit 1 in FIG. The operator specifies in advance the printer (for example, P) to be used.
Therefore, the printer type data p input by the operator from the input unit 2 is set in the control table T in the main memory 3. The processing unit 4 processes the original data D of the file device 6 by executing the processing program 5. The obtained processed data D' is then stored in the memory 7. processing data
D' is composed of non-graphic data D ₁ and D ₂ and graphic data G, and the graphic data G has the configuration shown in FIG. As shown in FIG. 3a, the graphic data G is composed of control information GC, coordinate coefficients G _X and G _Y at the time of graphic data creation, and vector data VD. control information
GC is information specifying a vector, and vector data VD is composed of coordinate data x ₁ , y ₁ , x ₂ , y _{2 .} . . as shown in FIG. 3b.

In FIG. 2, the processing unit 8 prints out the processed data D' in the memory 7 by executing a writer program (WRITER) 9 in the memory 3.

FIG. 4 is a flowchart showing the contents of this process.

In the first step, processing data is stored from memory 7.
Read D′ sequentially.

Next, in step, it is determined whether the read data is graphic data G or not. If it is non-graphic data D ₁ , D ₂ , it can be sent directly to the printer P.
Send to. On the other hand, in the case of graphic data G, the process advances to step.

In this step, it is determined whether the coordinate coefficients of the designated printer P shown in FIG. 2 are equal to the coordinates at the time of processing. If they are equal, proceed to step
If not equal, proceed to step.

In the step, printing of vector data is commanded. If the processed data D' has been completed, the processing is terminated, and if not completed, the process returns to step.

In the step, one is taken out from the vector data VD and first set m=1.

In this step, the following processing is performed for each vector data.

Xm′=Xm・R _X Ym′=Ym・R _Y where _Xm and _Ym are the processed coordinate data, R Due to processing, printer P
The coordinate data Xm′ and Ym′ to be supplied to the
Next, m=m+1 is performed, and it is determined whether the vector data is finished. If completed, proceed to step; if not completed, return to step.

In this way, the coordinate data Xm',
Ym' is stored in the print buffer 10 shown in FIG. 2 and then printed out.

(f) Effects of the Invention As explained above, the present invention has the effect that even output devices of different systems and having different characteristics can always output a constant figure.

[Brief explanation of drawings]

Fig. 1 is an example of the output of the conventional method, Fig. 2 is a block diagram illustrating an embodiment of the present invention, Fig. 3 is a data configuration diagram illustrating an embodiment of the present invention, and Fig. 4 is a block diagram illustrating an embodiment of the present invention. 1 is a flowchart illustrating one embodiment. The symbols used in the figure are as follows. 1 is a control unit, 2 is an input unit, 3 is a main memory, 4,
8 is a processing unit, 5 is a processing program, 6 is a file device, 7 is a memory, 9 is a writer program, 10
is the print buffer, A, B, C are the vertices of the output triangular figure, D is the original data, D' is the processed data, _D1 , _D2 are the non-graphic data, G is the graphic data,
_GC is _{control information} , _G
Xm, Ym are processed coordinate data, Xm′,
Ym' is coordinate data sent to the output device, p is printer type data, and x ₁ , y ₁ , x ₂ , y ₂ are coordinate data.

Claims (1)

[Claims] 1. First coordinate data processed by a processing device;
A figure is output by supplying first figure data constituted by first coordinate coefficient data representing coordinate data values required for unit length output in each of the horizontal and vertical axes directions considered during the processing to an output device. In the system, means for specifying the type of output device to be output;
means for storing second coordinate coefficient data representing coordinate data values required for unit length output in each of the horizontal and vertical axis directions for each type of output device; and means for calculating second coordinate data by multiplying the first coordinate data by a ratio with coordinate coefficient data, the processing device outputting a graphic to the output device using the processed first graphic data. When outputting, the first coordinate coefficient data in the first figure data,
The figure is output by supplying second coordinate data calculated based on the second coordinate coefficient data corresponding to the specified type of the output device to the specified output device. Graphic output device.