JPH01149091A - Conversion system for graphic marker - Google Patents

Abstract

PURPOSE: To improve the effect of clear position showing as the original role of a marker by determining the thickness of line segments consisting of the marker to be plotted based of size information showing the size of the marker. CONSTITUTION: This system is provided with a marker conversion processing means 3 for determining how many line segments consisting of a basic marker correspond to the thickness of line segments consisting of the marker to be plotted based on the size information showing the size of the marker and for preparing a line segment plotting instruction group required for plotting the marker at each position when the marker having the thickness of line segments equal with the thickness of the basic marker and the length of line segments designated by the size information is parallelly moved in prescribed direction every time just for the thickness of line segments consisting of the basic marker until the thickness of line segments becomes the determined thickness. Therefore, the thickness of line segments consisting of the marker can be changed in proportion to the size of the marker to be displayed on a graphic display device 4 so that the clear position showing effect of the marker is improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention includes a sequence of device-independent figure drawing control instructions, in which a marker drawing control instruction for drawing a marker using a line segment is combined with a device-dependent marker drawing control instruction. The present invention relates to a conversion method for a graphic marker that is converted into a graphic marker and output to a graphic output device, and particularly relates to a conversion method for a graphic marker that can change the thickness of a line segment forming a marker depending on the size of the marker.

[Conventional technology]

It has been conventional practice to change the size of markers output to graphic output devices such as CRTs, XY plotters, and Japanese printers using marker size commands, but conventionally, the length of the line segments that make up the markers has been changed. The thickness of the line segments constituting the marker was always constant regardless of the size of the marker.

[Problem that the invention seeks to solve]

As described above, conventionally, the thickness of the line segment constituting the marker is always constant regardless of the size of the marker, so there has been a problem that the marker becomes less noticeable as the marker becomes larger.

The present invention was made in view of these circumstances, and its purpose is to change the thickness of the line segments that make up the marker according to the size of the marker, in order to improve the effect of indicating the position, which is the original role of the marker. The purpose is to allow changes to be made.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention replaces a marker drawing control command that draws a marker with a line segment in a device-independent graphic drawing control command sequence with a marker drawing control command that draws a marker with a device-dependent line segment. The conversion method includes a storage means for storing a device-independent figure drawing control command sequence to be converted, and a figure drawing control command sequence stored in the storage means into a device-dependent figure drawing control command sequence. a marker conversion processing means that is called by the conversion processing means and converts a device-independent marker drawing control command into a device-dependent marker drawing control command; a figure output device that outputs a device-dependent figure drawing control command sequence as a figure, and the conversion processing means calls the marker conversion processing means by detecting the marker drawing control command, and the marker drawing control Size information indicating the size of the marker to be drawn according to the command is passed to the marker conversion processing means, and the marker conversion processing means is called by the conversion means to perform processing according to the marker drawing control command based on the size information. In addition to determining the thickness of the line segment that makes up the marker that is instructed to be drawn, it determines how many bones of the thickness of the line segment that makes up the basic marker.
A group of line segment drawing commands necessary to draw a marker whose line segment thickness is the same as that of the line segment constituting the basic marker and whose line segment length is specified by the size information. and each position when the marker drawn by the group of line segment drawing commands is translated in a predetermined direction by the thickness of the line segment constituting the basic marker until the thickness of the line segment reaches the determined thickness. A group of line segment drawing commands necessary for drawing markers in the process is created and passed to the conversion processing means as a group of device-dependent marker drawing control commands.

[For production]

The marker conversion means determines the thickness of the line segment forming the marker to be drawn based on the size information indicating the size of the marker, based on the thickness of the line segment forming the basic marker. decide. Then, until the thickness of the line segment reaches the determined thickness, the marker whose line segment thickness is the same as the thickness of the basic marker and whose line segment length is the length specified by the size information is changed to the basic marker. Create a group of line segment drawing commands necessary to draw a marker at each position when the line segments composing the marker are alternately translated in a predetermined direction, for example, alternately in the opposite direction. .

〔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 storage means 1, a conversion processing means 2, a marker conversion processing means 3,
It includes a graphic output device 4 and a register 5.

The storage means 1 is set, for example, on a core memory, and stores a device-independent graphic drawing control instruction string to be converted into a device-dependent graphic drawing control instruction string. The conversion processing means 2 extracts commands one by one from the figure drawing control command string stored in the storage means 1, converts them into a device-dependent figure drawing control command string, and detects marker drawing control commands. At that point, the necessary information is passed to the marker conversion processing means 3 via the register 5. Based on this information, the marker conversion processing means 3 converts the marker drawing control commands into a set of device-dependent line segment drawing commands. , and returns it to the conversion processing means 2. The conversion processing means 2 sends the converted device-dependent graphic drawing control command sequence to the graphic output device 4 when the conversion processing of all the graphic drawing control commands is completed.The graphic output device 4 is, for example, a CRT.

It decodes and displays a device-dependent graphic drawing control instruction string received from the conversion processing means 2, including an XY plotter, a Japanese printer, etc.

The above is an outline of the operation of this embodiment. Next, while referring to the flowchart in FIG. 2 showing an example of processing by the conversion processing means 2 and the flowchart in FIG. 3 showing an example of processing by the marker conversion processing means 3, The operation of this embodiment will be explained in more detail. As shown in FIG. 4(a), the storage means 1 includes a marker type command for specifying the size of the marker, a marker type command for specifying the type of marker, and a marker drawing having coordinate values for drawing the marker. It is assumed that commands and other graphic drawing control commands are stored in an arbitrary order, and there are no restrictions on the order in which these commands appear or the number of times they appear. Further, the marker size command is composed of a marker size command code indicating that it is a marker size command and the marker size, as shown in the same figure (Mountain), and the marker type command is, for example, shown in the same figure (C1). As shown in FIG. It consists of a drawing command code, an X coordinate value of the marker drawing position, and a Y coordinate value of the marker drawing position.

In FIG. 1, a device-independent graphic drawing control command sequence created by an application program or the like is stored in storage means 1, and then conversion processing means 2 is activated.

When the conversion processing means 2 is activated, it starts the process shown in the flowchart of FIG. 2, and inputs one command from the storage means 1 (step Sl). In step S2, it is determined whether processing of all instructions stored in all storage means 1 has been completed, and if it is determined that processing of all instructions has been completed (
If the determination result in step S2 is YES), the converted data is output to the graphic output device 4 (step S8), and the conversion process is ended. Furthermore, if it is determined that the processing of all instructions has not been completed (if the determination result in step S2 is NO), the type of instruction input in step S1 is determined (
Step S3).

If it is determined in step S3 that the instruction type is a marker size instruction, the current marker size is stored in the work area (step S4), and then the next instruction is read (step S1), and the marker size is If it is determined that it is a type-specific command, it is stored in the work area as the current marker type (step S5), and then the next command is read (step S1), and it is determined that it is a marker drawing command. In this case, the X and Y coordinate values indicating the drawing position of the marker included in the marker drawing command,
Conversion to convert the current marker size stored in the work area, the current marker type stored in the work area, and device-independent coordinate values indicating the drawing position of the marker to device-dependent coordinate values. The matrix value is set in the register 5 and the marker conversion processing means 3 is called (step S6), causing the marker conversion processing means 3 to perform the processing shown in FIG. Then, when the processing of the marker conversion processing means 3 is completed and a group of line segment drawing commands are sent from the marker conversion processing means 3, a process of reading the next command is performed (step S1). The command is a marker size command.

If it is determined that the command is a command other than a marker type command or a marker drawing command, the command is converted from a device-independent figure drawing control command to a device-dependent figure drawing control command (step S7). Since these are outside the scope of the present invention, their explanation will be omitted. When the process of step S7 is completed, the conversion processing means 2 performs a process of reading the next instruction (step S1).

Through the processing described above, the device-independent graphic drawing control command string is converted into a device-dependent graphic drawing control command string and is output to the graphic output device 4.

Next, based on the flowchart of FIG. 3 showing an example of processing by the marker conversion processing means 3, the marker drawing command is converted into a set of line segment drawing commands, which is one of device-dependent figure drawing control commands. The process will be explained in detail.

When the marker conversion processing means 3 is called by the conversion processing means 2, first, the length of the line segment constituting the marker of the marker size passed through the register 5 has a predetermined basic size. Find out what power of 2 the length of the line segment that constitutes the marker (basic marker) is, and set the integer part to n (step 311). Next, the marker conversion processing means 3 converts the graphic output device 4 Set the magnification m that indicates how many times the thickness of the line segment forming the marker to be outputted to the line segment forming the basic marker to be made to be m = 2n + 1.
(step 512).

When the process of step S12 is completed, the marker conversion processing means 3 receives the marker type passed through the register 5,
Marker size and device-independent marker drawing position
Based on the Y coordinate value and the transformation matrix value, the thickness of the line segment is the same as the thickness of the line segment constituting the basic marker,
A device-dependent line segment drawing command group necessary for outputting a marker whose length is specified by the marker size to the graphic output device 4 is created and set in the work area (step 513 ).

Next, the marker conversion processing means 3 determines whether m=l (step 314), and if m=1, registers the device-dependent line segment drawing command set in the work area. 5 (step 319), and then returns to the calling conversion processing means 2. Further, if it is determined in step S14 that m is not 1, it is determined whether m is an even number (step S15).

If it is determined in step 315 that m is not an even number, the marker conversion processing means 3 determines whether or not the device-dependent line segment drawing command group created in step 316 exists in the work area, and determines that it exists. If so, step 3
Among the device-dependent line segment drawing commands created by 16, the line segments drawn by the most recently created line segment tili command group are set to +X axis direction and +YY axis direction basic marker thickness. Create a set of device-dependent line segment drawing commands necessary to draw a line segment that has been translated in parallel by the amount of time and set it in the work area, and if it is determined that it does not exist, create the device-dependent line segment created in step 313. A device-dependent line segment drawing command group required to draw a line segment group drawn by a drawing command group by the thickness of the line segment forming the basic marker in the +X-axis direction and +YY-axis direction. It is created and set in the work area (step 516).

Further, if it is determined in step 315 that m is an even number, it is determined whether or not the device-dependent line segment drawing command group created in step S17 exists in the work area, and if it is determined that there is, step A group of line segments drawn by the most recently created group of line segment drawing commands among the device-dependent line segment drawing commands created in S17 is a line segment that constitutes a basic marker in the -X-axis direction and the -Y-axis direction. Create a device-dependent line segment drawing command group that is necessary to draw a group of line segments that have been translated in parallel by the thickness of , and set it in the work area. A device-dependent line that is necessary to draw a line segment group drawn by the line segment drawing command group by the thickness of the line segment that constitutes the basic marker in the -X axis direction and -YY axis direction. A group of drawing commands is created and set in the work area (step SL?).

When the process of step 316 or step 317 is completed, the marker conversion processing means 3 performs the process of m=m-1 (step 318), and then moves to the process of step S14.

Next, the operation of the marker conversion processing means 3 when outputting a marker twice or four times the size of the basic marker will be explained with reference to FIG.

Note that the same figure (al indicates a basic marker, FIG. 6) shows a marker that is twice the basic marker, and the same figure (C1 shows a marker that is four times the basic marker).

First, the operation when drawing a marker twice the size of the basic marker will be explained.

When the marker conversion processing means 3 is called by the conversion processing means 2, it first performs the process of step Sll.

In this case, the marker to be mounted is twice the size of the basic marker, and 2=21, so n
=1.

Next, the marker conversion processing means 3 performs the process of step S12. In this case, since 9=1, mx 'l
It becomes n+l-3.

Next, the marker conversion processing means 3 determines that the thickness of the line segment is the same as the thickness of the line segment constituting the basic marker M shown in FIG. 5 tal, and the length of the line segment is the basic marker M.

The same figure (bl
A device-dependent line segment drawing command group necessary for drawing marker M+ shown in is created and set in the work area (step 313).

When the processing of step S13 is completed, the marker conversion processing means 3 performs the processing of step 316 since m=3. Create a device-dependent line segment drawing command group required to draw a marker M, which is obtained by moving the marker M l in parallel in the +X-axis direction and +Y-axis direction by the thickness of the line segment that constitutes the basic marker M o. and set it in the work area.

Next, the marker conversion processing means 3 performs the process of step 318, and sets m=2.

Since m=2, the marker conversion processing means 3 performs the process of step 317. In step S17, the marker conversion processing means 3 moves the marker M shown in FIG. marker M,
Create a set of device-dependent line segment drawing commands needed to draw and set them in the work area.

Next, the marker conversion processing means 3 performs the process of step 318, and sets m=l.

Since m=1, the marker conversion processing means 3 performs the process of step S19. In step S19, the marker conversion processing means 3 converts the markers M, , MIM3 set in the work area to t! A group of line segment drawing commands required for < is set in the register 5.

Therefore, according to the line segment drawing command group set in register 5, the length of the line segment is set to 2 of the line segment constituting the basic marker M0.
You can draw a marker that is 3 times thicker.

Next, the operation when drawing a marker four times the size of the basic marker will be explained.

In this case, the size of the marker to be drawn is four times the size of the basic marker, so step Sll, 3
By performing the processing in step 12, n=2°m=5 is obtained.

Next, the marker conversion processing means 3 determines the thickness of the line segment as shown in FIG.
The basic marker M has the same thickness as the line segment constituting the basic marker M0 shown in al, and the length of the line segment.

The marker M1 shown in Tel in the same figure has a length four times that of the marker M1.

A device-dependent line segment drawing command group necessary for drawing is created and set in the work area (step 513).

When the process of step S13 is completed, since m=5, the marker conversion processing means 3 performs the process of step S16, and the marker Ml shown in FIG. 5(C)! Create a device-dependent line segment drawing command group necessary for drawing and set it in the work area, and then perform the process of step 318 to set m=4. By setting 0m=4, marker conversion processing is performed. Means 3 performs the process of step 317,
Marker Ml shown in the same figure (C)! Create a group of line segment drawing commands needed to draw and set them in the work area.

Thereafter, the marker conversion processing means 3 performs step 316.
SIT processing is performed alternately to create a device-dependent line segment drawing command group necessary for drawing the marker M14° MIs shown in FIG. Then, when a device-dependent line segment drawing command group necessary for drawing the marker M1S is created, it becomes m-1 by the process of step 318, so the marker conversion processing means 3 converts the marker M set in the work area. ,,.

A device-dependent line segment drawing command group required to draw MIs, M+s+ tJBa+ MIs is set in register 5.

Therefore, by using the line segment drawing command set in the register 5, it is possible to draw a marker whose length is four times as long as that of the line constituting the basic marker and whose thickness is five times as thick.

〔Effect of the invention〕

As explained above, the present invention sets the thickness of the line segment constituting the marker to be drawn based on the size information indicating the size of the marker to the thickness of the number of bones of the line constituting the basic marker. and the thickness of the line segment is the same as the thickness of the base marker, and the length of the line segment has the length specified by the size information, until the thickness of the line segment is the determined thickness. Marker conversion processing means for creating a group of line segment drawing commands necessary for drawing a marker at each position when the marker is translated in a predetermined direction by the thickness of the line segment constituting the basic marker. Therefore, according to the present invention, the thickness of the line segment forming the marker can be changed in proportion to the size of the marker displayed on the graphic display device. It has the advantage of being able to increase the

[Brief explanation of the drawing]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a flowchart showing a processing example of the conversion processing means 2, FIG. 3 is a flowchart showing a processing example of the marker conversion processing means 3, and FIG. 4 is a storage means. 1 is a diagram showing a state in which marker size commands, marker type commands, and marker size commands are stored and the format of each command, and FIG. 5 is an explanatory diagram of the operation of the marker conversion processing means 3. In the figure, 1: storage means, 2: conversion processing means, 3: marker conversion processing means, 4: graphic output device, 5: register.

Claims (1)

[Scope of Claims] In a method for converting a marker drawing control command for drawing a marker using a line segment in a device-independent figure drawing control command sequence into a marker drawing control command for drawing a marker using a device-dependent line segment, a storage means for storing a device-independent graphic drawing control command sequence to be converted; a conversion processing means for converting the graphic drawing control command sequence stored in the storage means into a device-dependent graphic drawing control command sequence; , marker conversion processing means that is called by the conversion processing means and converts a device-independent marker drawing control command into a device-dependent marker drawing control command; and a device-dependent figure drawing control converted by the conversion processing means. a graphic output device that outputs a command sequence as a graphic, and the conversion processing means calls the marker conversion processing means by detecting a marker drawing control command, and changes the size of the marker drawn by the marker drawing control command. Size information indicating the size of the marker is passed to the marker conversion processing means, and the marker conversion processing means is called by the conversion means and instructed to draw by the marker drawing control command based on the size information. In addition to determining how many line segments that make up the marker should be as thick as the basic marker,
A group of line segment drawing commands necessary to draw a marker whose line segment thickness is the same as that of the line segment constituting the basic marker and whose line segment length is specified by the size information. and each position when the marker drawn by the group of line segment drawing commands is translated in a predetermined direction by the thickness of the line segment constituting the basic marker until the thickness of the line segment reaches the determined thickness. 1. A graphic marker conversion method, characterized in that a group of line segment drawing commands necessary for drawing a marker in a computer is created and passed to the conversion processing means as a group of device-dependent marker drawing control commands.