JPH0217580A - Pattern description method - Google Patents

Pattern description method

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Publication number
JPH0217580A
JPH0217580A JP16936588A JP16936588A JPH0217580A JP H0217580 A JPH0217580 A JP H0217580A JP 16936588 A JP16936588 A JP 16936588A JP 16936588 A JP16936588 A JP 16936588A JP H0217580 A JPH0217580 A JP H0217580A
Authority
JP
Japan
Prior art keywords
rectangular area
pattern
storage device
graphics
rectangular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP16936588A
Other languages
Japanese (ja)
Other versions
JP2715453B2 (en
Inventor
Hiromi Tamura
田村 裕美
Takahiro Miyamoto
宮本 隆裕
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP63169365A priority Critical patent/JP2715453B2/en
Publication of JPH0217580A publication Critical patent/JPH0217580A/en
Application granted granted Critical
Publication of JP2715453B2 publication Critical patent/JP2715453B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

PURPOSE:To efficiently use a storage area and to simplify the rectangular area description processing by dividing a rectangular area to prescribed rectangular areas and describing them in a pattern storage device in an arbitrary order. CONSTITUTION:A pattern is described by a pattern describing means 103 and is stored in a pattern storage device 102 and is displayed on a pattern display device 101. When an arbitrary rectangular area designated with a dot as the unit will be stored in the pattern storage device 102, this rectangular area is divided into three, namely, a rectangular area from one end to the first pattern boundary, a rectangular area from the last pattern boundary included in the rectangular area to the other end, and a rectangular area between these rectangular areas, and these areas are described in the pattern storage device 102 in an arbitrary order.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は電子計算機における図形の描画方法、特に図形
記憶装置に描画する単位と図形記憶装置の内容を表示す
る単位とが異なる場合の、効率的な矩形領域描画方法に
関する。
[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a method for drawing figures in an electronic computer, and in particular to an efficiency method when the unit for drawing in a figure storage device and the unit for displaying the contents of the figure storage device are different. This paper relates to a rectangular area drawing method.

[従来の技術] 従来の矩形領域描画の方法は、以下の様に行われている
。ただし、任意の一方向に連続した複数の図形を表示す
る最小単位を以下ドツトと記述し、ドツトは水平方向に
連続しているものとする。また、図形記憶装置に図形を
描画する最小単位を以下パターンと記述する。
[Prior Art] A conventional method for drawing a rectangular area is performed as follows. However, the minimum unit for displaying a plurality of consecutive figures in any one direction is hereinafter referred to as a dot, and dots are assumed to be continuous in the horizontal direction. Further, the minimum unit for drawing a figure in the figure storage device is hereinafter described as a pattern.

(1)矩形領域をその構成要素である水平線に分割する
(1) Divide a rectangular area into its constituent horizontal lines.

(2) (1)で分割した各水平線を、その左端から最
初のパターン境界までの左端部と、前記水平線に含まれ
る最終のパターン境界から右端までの右端部分と、左端
部分と右端部分にはさまれた中央部分に分割し、それぞ
れの描画パターンを作成する。
(2) Each horizontal line divided in (1) is divided into the left end part from its left end to the first pattern boundary, the right end part from the final pattern boundary included in the horizontal line to the right end, and the left end part and right end part. Divide into central parts and create drawing patterns for each.

(3)左端部分・中央部分・右端部分の描画パターンを
任意の順番で描画することにより、−本の水平線を描画
する。
(3) By drawing the drawing patterns of the left end portion, center portion, and right end portion in any order, -horizontal lines are drawn.

(4) (2)、(3)の処理を(1)で分割した水平
線の本数分繰り返すことにより、矩形領域を描画する。
(4) A rectangular area is drawn by repeating the processes in (2) and (3) for the number of horizontal lines divided in (1).

あるいは、(2)で作成した各描画パターンを常時保存
しながら(3)の処理だけを繰り返すことにより、矩形
領域を描画する。
Alternatively, a rectangular area is drawn by repeating only the process of (3) while constantly saving each drawing pattern created in (2).

[発明が解決しようとする課題] 従来の矩形領域描画方法では、以下の様な問題点を有し
ている。
[Problems to be Solved by the Invention] The conventional rectangular area drawing method has the following problems.

矩形領域を構成する水平線1本毎にその左端部分・中央
部分・右端部分のパターン描画を繰り返す為に、描画終
了時まで前記各部分に対応したパターンを保存するか、
あるいは毎回前記各部分に対応したパターンを作成する
処理が必要となる。
In order to repeat the pattern drawing of the left end, center, and right end of each horizontal line that makes up the rectangular area, it is necessary to save the pattern corresponding to each part until the end of drawing.
Alternatively, it is necessary to create a pattern corresponding to each portion each time.

その結果、パターンを保存する場合には必要に応じた記
憶領域が必要となり、記憶領域を非効率的に使用するこ
とになる。また毎回パターンを作成する場合には、該処
理を実行するための時間が必要になるとともに煩雑性が
増大し、処理速度が1/2〜1/3に大幅にダウンする
ことになる。
As a result, when storing patterns, a storage area is required depending on the need, and the storage area is used inefficiently. Furthermore, if a pattern is created each time, time is required to execute the process, complexity increases, and the processing speed is significantly reduced to 1/2 to 1/3.

本発明の目的は上記問題点に鑑み、記憶領域の効率的な
使用と矩形領域描画処理の簡略化を図ることにより、高
速な矩形領域描画の方法を提供することである。
SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide a method for drawing a rectangular area at high speed by efficiently using a storage area and simplifying the process of drawing a rectangular area.

[課題を解決するための手段] 表示図形を記憶する図形記憶装置と、図形記憶装置の内
容を図形として表示する図形表示装置と、図形記憶装置
に図形を描画する図形描画手段とを備え、前記図形記憶
装置に図形を描画するパターンが、任意の一方向に連続
した複数の図形を表示する最小単位のドツトから構成さ
れる電子計算機において、ドツト単位で指定された任意
の矩形領域を前記図形記憶装置に描画する場合に、(A
)前記矩形領域をその一方の端から最初のパターン境界
までの矩形領域1 CB)前記矩形領域に含まれる最終のパターン境界から
他方の端までの矩形領域2 (C)矩形領域1と矩形領域2にはさまれた矩形領域3 とに分割し、この3つの矩形領域1.2.3を任意の順
序で前記図形記憶装置に描画することにより、前記矩形
領域の描画を行うよう構成したことを特徴としている。
[Means for Solving the Problems] A graphics storage device that stores display graphics, a graphics display device that displays the contents of the graphics storage device as graphics, and graphics drawing means that draws graphics on the graphics storage device, In an electronic computer in which a pattern for drawing a figure in a figure storage device consists of minimum unit dots that display a plurality of consecutive figures in any one direction, an arbitrary rectangular area specified in units of dots is drawn in the figure memory. When drawing on the device, (A
) Rectangular area 1 from one end of the rectangular area to the first pattern boundary CB) Rectangular area 2 from the final pattern boundary included in the rectangular area to the other end (C) Rectangular area 1 and rectangular area 2 The drawing of the rectangular area is performed by dividing the rectangular area 3 sandwiched between It is a feature.

[実施例] 以下に、図面を用いて本発明の詳細な説明する。[Example] The present invention will be described in detail below using the drawings.

第1図は本発明の一実施例による構成、第2図は図形記
憶装置の一構成例を示す。
FIG. 1 shows a configuration according to an embodiment of the present invention, and FIG. 2 shows an example of the configuration of a graphic storage device.

第1図において、101は図形表示装置、102は図形
記憶装置、103は図形描画手段、104は描画パター
ン作成手段を表す。このうち、図形記憶装置は本実施例
において第2図に示すような特徴を有するものとする。
In FIG. 1, 101 represents a graphic display device, 102 a graphic storage device, 103 a graphic drawing means, and 104 a drawing pattern creating means. Among these, the graphic storage device in this embodiment is assumed to have characteristics as shown in FIG.

201は表示基本単位のドツト、202は描画基本単位
のパターンで、水平方向に連続した8個のドツトから構
成される。このとき、図形記憶装置上の任意のドツト位
置Aを A = (X、Y) = X + Y*640で求めら
れる座標系で表現する。また、図形を描画するとは、図
形記憶装置の対象ドツト位置に1または0を書き込むこ
ととする。ただし、本発明はこの数値例に限定されるこ
とはない。
201 is a dot as a basic unit of display, and 202 is a pattern as a basic unit of drawing, which is composed of eight dots consecutive in the horizontal direction. At this time, an arbitrary dot position A on the graphic storage device is expressed in a coordinate system determined by A = (X, Y) = X + Y * 640. Furthermore, drawing a figure means writing 1 or 0 to the target dot position in the figure storage device. However, the present invention is not limited to this numerical example.

(1)実施例1 以下に矩形領域描画の過程を、第3図のフローチャート
(ステップ301〜319) 、及び第4図を参照しつ
つ具体的に説明する。
(1) Example 1 The process of drawing a rectangular area will be specifically explained below with reference to the flowchart of FIG. 3 (steps 301 to 319) and FIG. 4.

ここで説明を簡単にするために、図形記憶装置は初期化
され図形データは何も記憶されていないものとする。
To simplify the explanation, it is assumed here that the graphic storage device is initialized and no graphic data is stored.

第4図に示した、座標(Xl、Yl) ト(X2.Y2
)(7) 2点を対角とする矩形領域Bを描画する場合
、第4図に示したように、この矩形領域Bを次の3つの
矩形領域Bl、B2.B3に分割する。(ステップB 
1 : (Xi、Yl)と(XL、Y2)を対角とする
矩形領域B 2 : (XLYI)と(X2.Yl)を
対角とする矩形領域B 3 : (XL+1.Yl)と
(XR−1,Yl)を対角とする矩形領域 ただし、XLは(XL〉=xl)カッくxL+1)カバ
ターン境界値であることを満足する最小値。また、XR
は(XR=< X2)かつパターン境界値であることを
満足する最大値。ここで、パターン境界値とは−パター
ンを構成するドツト数8で割り切れる値である。
The coordinates (Xl, Yl) shown in Figure 4 (X2.Y2
) (7) When drawing a rectangular area B having two diagonal points, as shown in FIG. 4, this rectangular area B is divided into the following three rectangular areas Bl, B2 . Divide into B3. (Step B
1: Rectangular area B with diagonals of (Xi, Yl) and (XL, Y2) 2: Rectangular area B with diagonals of (XLYI) and (X2.Yl) 3: (XL+1.Yl) and (XR -1, Yl), where XL is the minimum value that satisfies the fact that (XL>=xl)xL+1) is a cover turn boundary value. Also, XR
is the maximum value that satisfies (XR=<X2) and is a pattern boundary value. Here, the pattern boundary value is a value that is divisible by -8, the number of dots forming the pattern.

また、xlあるいは(X2+1)がパターン境界値であ
る場合は、B1あるいはB2がB3に含まれることにな
る。
Furthermore, if xl or (X2+1) is a pattern boundary value, B1 or B2 will be included in B3.

次に各矩形領域を描画するが、その描画類は任意であり
、本実施例ではBl、B2.B3の順で描画するものと
する。
Next, each rectangular area is drawn, but the drawing type is arbitrary, and in this embodiment, Bl, B2. It is assumed that drawing is performed in the order of B3.

矩形領域B1の描画は以下の手順により行う。Drawing of the rectangular area B1 is performed by the following procedure.

まず、X座標x1ないしXLを含む−パターン幅の水平
線の描画パターンP1を作成する。(ステップ302)
次に、このパターンP1をY座標Y1からYlまで、X
座標位置(XL−7)から描画する。(ステップ303
〜306) 矩形領域B2の描画は以下の手順により行う。
First, a drawing pattern P1 of a horizontal line with a -pattern width including X coordinates x1 to XL is created. (Step 302)
Next, move this pattern P1 from Y coordinate Y1 to Yl,
Draw from coordinate position (XL-7). (Step 303
~306) Drawing of the rectangular area B2 is performed by the following procedure.

まず、X座標XRないしX2を含む−パターン幅の水平
線の描画パターンP2を作成する。(ステップ307)
次に、このパターンP2をY座標Y1からYlまで、X
座標位置XRから描画する。(ステップ308〜矩形領
域B3の描画は以下の手順により行う。
First, a drawing pattern P2 of a horizontal line with a -pattern width including the X coordinates XR to X2 is created. (Step 307)
Next, move this pattern P2 from Y coordinate Y1 to Yl,
Draw from coordinate position XR. (Step 308 - Drawing of the rectangular area B3 is performed by the following procedure.

まず、描画パターンP3を作成する。(ステップ312
)次にX座標(XL+1)から(XR−1)を満たすま
で、水平方向にパターンP3を連続し、て描画し、さら
にこの処理をY座標Y1からYlまで繰り返す。(ステ
ップ313〜319) 以上で指定された矩形領域の描画が終了する。
First, a drawing pattern P3 is created. (Step 312
) Next, the pattern P3 is drawn continuously in the horizontal direction from the X coordinate (XL+1) until (XR-1) is satisfied, and this process is repeated from the Y coordinate Y1 to Yl. (Steps 313 to 319) The drawing of the rectangular area specified above is completed.

(2)実施例2 実施例1の応用として、図形記憶装置上に既になんらか
の図形データが描画されている場合に、実施例1と同様
な矩形領域を描画する場合を説明する。
(2) Example 2 As an application of Example 1, a case will be described in which a rectangular area similar to Example 1 is drawn when some graphic data has already been drawn on the graphic storage device.

ただし本例の場合、図形描画手段として以下に説明する
2種類の描画モードを備えた図形描画装置があるものと
する。
However, in the case of this example, it is assumed that there is a graphic drawing device having two types of drawing modes, which will be described below, as the graphic drawing means.

(a)描画パターンをそのまま図形記憶装置に描画する
モード(以下REPLACEモードと記述する) (b)描画パターンの1のドツトは図形記憶装置に1を
描画し、描画パターンの0のドツトは図形記憶装置のま
まとするモード(以下ORモードと記述する) また、図形描画装置は描画処理を行う前に登録された描
画パターンを処理対象とし、−度登録された描画パター
ンは再度登録を行うまで有効であるものとする。
(a) A mode in which the drawing pattern is drawn as is in the figure storage device (hereinafter referred to as REPLACE mode) (b) A 1 dot in the drawing pattern draws 1 in the figure storage device, and a 0 dot in the drawing pattern is drawn in the figure storage device. A mode in which the device remains as it is (hereinafter referred to as OR mode) In addition, the drawing device processes the drawing pattern that was registered before performing drawing processing, and the drawing pattern that has been registered is valid until it is registered again. shall be.

以下に本実施例の具体的な処理過程を、第4図及び第5
図を用いて説明する。
The specific process of this example is shown below in Figures 4 and 5.
This will be explained using figures.

本実施例の場合も基本的な処理過程は実施例1と同様で
ある。ただし、既に描画されている図形データのうち、
指定された矩形領域B以外の図形データは、図形記憶装
置上のまま保存しなければならない。従って、分割した
矩形領域Bl、B2を描画する際の描画パターンの作成
には第5図に示すような処理が必要となる。図中、50
1は矩形領域B1を描画する前のY座標位置Ylのパタ
ーンであり、502は501を元に作成された矩形領域
B1描画用のパターンである。501から502への変
換は、描画対象として矩形領域B1のX座標x1からX
Lまでに1を書き込むことにより行われる。
In this embodiment, the basic processing steps are the same as in the first embodiment. However, among the shape data that has already been drawn,
Graphic data other than the designated rectangular area B must be saved on the graphic storage device. Therefore, processing as shown in FIG. 5 is required to create a drawing pattern when drawing the divided rectangular areas Bl and B2. In the figure, 50
1 is a pattern at the Y coordinate position Yl before drawing the rectangular area B1, and 502 is a pattern for drawing the rectangular area B1 created based on 501. The conversion from 501 to 502 is performed from the X coordinate x1 of the rectangular area B1 as the drawing target to
This is done by writing 1 up to L.

さらに、矩形領域B1を描画するためには前記のパター
ン作成処理をY座標位置Y1からYlまで行わなければ
ならない。これは−見非常に煩雑な処理に思われるが、
先に説明した図形描画装置に実施例1で説明した描画パ
ターンP1を登録し、ORモードで描画することにより
、実施例1と同様な処理となる。
Furthermore, in order to draw the rectangular area B1, the pattern creation process described above must be performed from the Y coordinate position Y1 to Yl. This seems like a very complicated process, but
By registering the drawing pattern P1 described in the first embodiment in the graphic drawing device described above and drawing in the OR mode, the same processing as in the first embodiment is performed.

同様に、矩形領域B2は描画パターンP2を登録後OR
モードで、矩形領t6B3は描画パターンP3を登録f
&REPLAcEモードで、実施例1と同様に描画すれ
ば良いことになる。
Similarly, rectangular area B2 is ORed after registering drawing pattern P2.
In the rectangular area t6B3, the drawing pattern P3 is registered f
It is sufficient to draw in the &REPLAcE mode in the same manner as in the first embodiment.

以上の処理を従来の方法で行うとすると、左端部分・右
端部分・中央部分の描画を水平線の本数分繰り返すので
、その度に各パターンの登録が必要となるとともに、各
パターンを常時保存する必要がある。本発明の方法によ
れば既に説明したように3回のパターン登録で清むこと
、さらに各パターンを常時保存する必要がないことから
、従来の方法と比較してその優位性は明白である。
If the above process were to be performed using the conventional method, drawing the left end, right end, and center part would be repeated for the number of horizontal lines, so each pattern would need to be registered each time, and each pattern would need to be saved at all times. There is. According to the method of the present invention, as described above, it is possible to clean the pattern by registering it three times, and there is no need to store each pattern all the time, so its superiority over the conventional method is obvious.

[発明の効果コ 以上説明した様に本発明によれば、複数の描画パターン
を常時保存するための記憶領域が必要なくなると共に、
矩形領域描画処理が簡略化され、従来の方法に比べて2
倍〜3倍高速な矩形領域描画が可能となる効果がある。
[Effects of the Invention] As explained above, according to the present invention, there is no need for a storage area to constantly store a plurality of drawing patterns, and
The rectangular area drawing process has been simplified, resulting in a reduction of 2 times compared to the conventional method.
This has the effect of making it possible to draw a rectangular area twice to three times faster.

102:図形記憶装置 103:図形描画手段 104:描画パターン作成手段 出願人 セイコーエプソン株式会社 代理人 弁理士 鈴木喜三部 他1名102: Graphic storage device 103: Figure drawing means 104: Drawing pattern creation means Applicant: Seiko Epson Corporation Agent: Patent attorney Kizobe Suzuki and 1 other person

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例による構成、第2図は図形記
憶装置の一構成例、第3図は本発明の処理過程を示すフ
ローチャート、第4図は本発明により描画される矩形領
域の例、第5図は本発明による描画パターンの作成例を
表したそれぞれ略図である。 101:図形表示装置 第 図
FIG. 1 shows a configuration according to an embodiment of the present invention, FIG. 2 shows an example of a configuration of a graphic storage device, FIG. 3 is a flowchart showing a processing process of the present invention, and FIG. 4 shows a rectangular area drawn according to the present invention. FIG. 5 is a schematic diagram showing an example of creating a drawing pattern according to the present invention. 101: Graphic display device diagram

Claims (1)

【特許請求の範囲】[Claims] 表示図形を記憶する図形記憶装置と、図形記憶装置の内
容を図形として表示する図形表示装置と、図形記憶装置
に図形を描画する図形描画手段とを備え、前記図形記憶
装置に図形を描画する最小単位のパターンが、任意の一
方向に連続した複数の図形を表示する最小単位のドット
から構成される電子計算機において、前記ドット単位で
指定された任意の矩形領域を前記図形記憶装置に描画す
る場合に、前記矩形領域をその一方の端から最初のパタ
ーン境界までの矩形領域1と、前記矩形領域に含まれる
最終のパターン境界から他方の端までの矩形領域2と、
矩形領域1と矩形領域2にはさまれた矩形領域3とに分
割し、前記3つの矩形領域を任意の順序で前記図形記憶
装置に描画することにより、前記矩形領域の描画を行う
よう構成したことを特徴とする図形描画方法。
A graphics storage device for storing display graphics, a graphics display device for displaying the contents of the graphics storage device as graphics, and a graphics drawing means for drawing graphics in the graphics storage device; When drawing an arbitrary rectangular area specified by the unit of dots in the figure storage device in an electronic computer whose unit pattern consists of the smallest unit of dots that displays a plurality of consecutive figures in any one direction. a rectangular area 1 extending from one end of the rectangular area to the first pattern boundary; and a rectangular area 2 extending from the final pattern boundary included in the rectangular area to the other end;
The rectangular area is divided into a rectangular area 1 and a rectangular area 3 sandwiched between rectangular areas 2, and the rectangular area is drawn by drawing the three rectangular areas in an arbitrary order on the graphic storage device. A figure drawing method characterized by the following.
JP63169365A 1988-07-06 1988-07-06 Drawing method Expired - Lifetime JP2715453B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63169365A JP2715453B2 (en) 1988-07-06 1988-07-06 Drawing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63169365A JP2715453B2 (en) 1988-07-06 1988-07-06 Drawing method

Publications (2)

Publication Number Publication Date
JPH0217580A true JPH0217580A (en) 1990-01-22
JP2715453B2 JP2715453B2 (en) 1998-02-18

Family

ID=15885232

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63169365A Expired - Lifetime JP2715453B2 (en) 1988-07-06 1988-07-06 Drawing method

Country Status (1)

Country Link
JP (1) JP2715453B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5552139A (en) * 1978-10-11 1980-04-16 Nec Corp Hatching circuit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5552139A (en) * 1978-10-11 1980-04-16 Nec Corp Hatching circuit

Also Published As

Publication number Publication date
JP2715453B2 (en) 1998-02-18

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