JPH0683971A - Graphic display device - Google Patents

Graphic display device

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Publication number
JPH0683971A
JPH0683971A JP4151665A JP15166592A JPH0683971A JP H0683971 A JPH0683971 A JP H0683971A JP 4151665 A JP4151665 A JP 4151665A JP 15166592 A JP15166592 A JP 15166592A JP H0683971 A JPH0683971 A JP H0683971A
Authority
JP
Japan
Prior art keywords
circle
area
circumferential area
data
square
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.)
Withdrawn
Application number
JP4151665A
Other languages
Japanese (ja)
Inventor
Shinji Kitano
伸司 北野
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Priority to JP4151665A priority Critical patent/JPH0683971A/en
Publication of JPH0683971A publication Critical patent/JPH0683971A/en
Withdrawn legal-status Critical Current

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  • Digital Computer Display Output (AREA)
  • Image Generation (AREA)
  • Controls And Circuits For Display Device (AREA)

Abstract

PURPOSE:To eliminate the area required for registration, to perform the copy processing at the time of plotting, and to enable high-speed plotting by registering one part of plotting data of paint-out circle to be used frequently. CONSTITUTION:When a user specifies a radius and performs the registration specification, four segment areas except for rectangular area inscribed to the circle of the radius are calculated in a circumference area registration means 2. The rectangular area including the segment shape is registered in a circumference area storage means 5 as circumference area data. Then, when a circle plotting specification is performed, a circumference area plotting means 3 reads out the circumference are data of the paint-out circle of the radius specified from the means 5 are read out and its effective pixel is written in the specified plotting position of a frame buffer 6, resulting in plotting the four segment areas. In an inscribed square plotting means 4, the area of the inscribed square is calculated based on the center position and the radius of the paint-out circle, performing the internal paint-out plotting of the square on the frame buffer.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、塗り潰し円描写ができ
る図形表示装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a graphic display device capable of drawing a filled circle.

【０００２】[0002]

【従来の技術】従来のこの種の図形表示装置において、
塗り潰し円を描画する場合、円を多角形近似し多角形塗
り潰し処理を実施していた。あるいは高速化の為に、頻
繁に使用する半径を塗り潰し円を描写データを登録して
あおき、コピーすることにより描画を行っていた。2. Description of the Related Art In a conventional graphic display device of this type,
When drawing a filled circle, the circle is approximated to a polygon and the polygon filling process is performed. Alternatively, for speeding up, a frequently used radius is filled, a circle is registered with drawing data, and copying is performed to perform drawing.

【０００３】[0003]

【発明が解決しようとする課題】上述した従来の塗り潰
し円描画方法では、多角形近似する場合は、円周の線分
分解と多角形塗り潰し処理の為、描画性能が遅いという
欠点があった。また、予め塗り潰し円の描画データを登
録しておきコピー描画する場合は、描画性能は高速だ
が、描画データを記憶する領域が膨大に必要となる欠点
があった。The conventional filled circle drawing method described above has a drawback in that the drawing performance is slow in the case of approximating a polygon due to the line segment decomposition of the circumference and the polygon filling process. Further, when the drawing data of the filled circle is registered in advance and the copy drawing is performed, the drawing performance is high, but there is a drawback that a huge area for storing the drawing data is required.

【０００４】[0004]

【課題を解決するための手段】第１の本発明の図形表示
装置は、フレームバッファと、複数の異なる半径の塗り
潰し円の一部分の描画データを記憶する円周領域記憶手
段と、円登録指示に起動され、指定された塗り潰し円に
対して、該円内部領域から該円に内接する正方形領域を
除いた４つを弓形領域に分割し、円周領域データとして
前記円周領域記憶手段に登録する円周領域登録手段と、
円描画指示により起動され、前記円周領域記憶手段から
指定された半径の円周領域データを読み出し前記フレー
ムバッファ該位置に書き込む円周領域描画手段と、前記
円周領域描画手段から起動され、前記フレームバッファ
の該位置に指定された半径の円に内接する正方形の塗り
潰し描画を行う内接正方形描画手段とを有する図形表示
装置有する。A graphic display device according to a first aspect of the present invention includes a frame buffer, a circumferential area storage means for storing drawing data of a part of a plurality of filled circles having different radii, and a circle registration instruction. When activated, the specified filled circle is divided into four arc-shaped regions, excluding the square region inscribed in the circle from the inside region of the circle, and registered in the circumferential region storage means as circumferential region data. Circumferential area registration means,
A circumferential area drawing means that is activated by a circle drawing instruction, reads the circumferential area data having a specified radius from the circumferential area storage means, and writes the circumferential area data to the frame buffer at the position, and is started from the circumferential area drawing means, A graphic display device having an inscribed square drawing means for performing a filled drawing of a square inscribed in a circle having a radius designated at the position of the frame buffer.

【０００５】第２の本発明の図形表示装置は、フレーム
バッファと、複数の異なる半径の塗り潰し円の一部分の
描画データを記憶する部分円周領域記憶手段と、円登録
指示により起動され、指定された塗り潰し円に対して、
該円内部領域から該円に内接する正方形領域を除いた４
つの弓形領域のうち１つを弦に垂直に２分割するした領
域を部分円周領域データとして前記部分円周領域記憶手
段に登録する部分円周領域登録手段と、円描画指示によ
り起動され、前記部分円周領域記憶手段から指定された
半径の部分円周領域データを読み出し、円の対称性を利
用し部分円周領域データから前記部分円周領域登録手段
が部分円周領域データ登録時に作成した４つの弓形領域
を再生し前記フレームバッファの該位置に書き込む円周
領域描画手段と、前記円周領域描画手段から起動され、
前記フレームバッファの該位置に指定された半径の円に
内接する正方形の塗り潰し描画を行う内接正方形描画手
段とを有する図形表示装置有する。The graphic display device according to the second aspect of the present invention is activated and designated by a frame buffer, a partial circumferential area storage means for storing drawing data of a part of a plurality of filled circles having different radii, and a circle registration instruction. For filled circles,
4 excluding the square area inscribed in the circle from the area inside the circle
Partial circumferential area registration means for registering an area obtained by dividing one of the two arcuate areas perpendicularly to the chord into two pieces as partial circumferential area data in the partial circumferential area storage means, and activated by a circle drawing instruction. The partial circumferential area data of the specified radius is read from the partial circumferential area storage means, and the partial circumferential area registration means creates the partial circumferential area data from the partial circumferential area data by utilizing the symmetry of the circle. A circumferential area drawing means for reproducing the four bow-shaped areas and writing the four bow-shaped areas at the positions of the frame buffer, and starting from the circumferential area drawing means,
A graphic display device having an inscribed square drawing means for performing a filled drawing of a square inscribed in a circle having a radius designated at the position of the frame buffer.

【０００６】[0006]

【実施例】次に本発明の実施例について図面を参照して
説明する。Embodiments of the present invention will now be described with reference to the drawings.

【０００７】本発明の第一実施例を示す図１を参照する
と、本実施例は入力手段１、円周領域登録手段２、円周
領域描画手段３、内接正方形描画手段４、円周領域記憶
手段５、フレームバッファ６及び表示手段７から構成さ
れている。Referring to FIG. 1 showing a first embodiment of the present invention, the present embodiment has an input means 1, a circumferential area registration means 2, a circumferential area drawing means 3, an inscribed square drawing means 4, a circumferential area. It is composed of a storage means 5, a frame buffer 6 and a display means 7.

【０００８】図２は円周領域登録手段２の詳細を示し、
弓形領域計算部２１及び円周領域登録部２２から構成さ
れている。FIG. 2 shows the details of the circumferential area registration means 2,
It is composed of an arcuate region calculation unit 21 and a circumferential region registration unit 22.

【０００９】図３は円周領域描画手段３の詳細を示し、
円周領域読出部３１、弓形領域描画部３２及び、内装正
方形描画手段起動部３３から構成されている。FIG. 3 shows the details of the circumferential area drawing means 3,
It is composed of a circumferential area reading section 31, an arcuate area drawing section 32, and an interior square drawing means starting section 33.

【００１０】図４は内接正方形描画手段の詳細を示し、
内接正方形領域計算部４１及び矩形領域塗り潰し描画部
４２から構成されている。FIG. 4 shows the details of the inscribed square drawing means.
It is composed of an inscribed square area calculation unit 41 and a rectangular area filling drawing unit 42.

【００１１】また、図５は円周領域記憶手段５に登録さ
れる円周領域データとこの円周領域データを使用して描
写される塗り潰し円を一例を示す図である。FIG. 5 is a diagram showing an example of the circumferential area data registered in the circumferential area storage means 5 and a filled circle drawn by using the circumferential area data.

【００１２】次に実施例の動作について説明する。Next, the operation of the embodiment will be described.

【００１３】まず利用者が入力手段１から半径を指定し
円の登録指示を行うと円周領域登録手段２が起動され
る。円周領域登録手段２では、弓形領域計算部２１によ
り、指定された半径の円から内接する正方形領域を除い
た４つの弓形領域が算出され、円周領域登録部２により
弓形を含む短形領域が円周領域データとして円周領域記
憶手段５に登録される。図５に半径８の塗り潰し円に関
する一例を示すが、図５（ａ）に示した（１），
（２），および（４）の弓形領域を含む円周領域データ
が算出される。First, when the user specifies a radius from the input means 1 and gives an instruction to register a circle, the circumferential area registration means 2 is activated. In the circumferential area registration unit 2, the arcuate area calculation unit 21 calculates four arcuate areas excluding the inscribed square area from the circle with the specified radius, and the circumferential area registration unit 2 calculates the short area including the arcuate shape. Is registered in the circumferential area storage means 5 as circumferential area data. FIG. 5 shows an example of a filled circle having a radius of 8, and as shown in FIG.
Circumferential region data including the arcuate regions of (2) and (4) is calculated.

【００１４】次に、利用者が入力手段１から円描写指示
を行うと、円周領域描画手段３が起動される。円周領域
描画手段３では、まず円周領域続出部３１により、円周
領域記憶手段５から指定された半径の塗り潰し円の円周
領域データを読み出す。そして弓形領域描画部３２によ
り読み出した円周領域データの有効ピクセル（即ち塗り
潰し部分）をフレームバッファ６の指定描画位置に書き
込むその結果、４つの弓形領域が描画されることにな
る。次に、内接正方形描画手段起動部３３により内接正
方形描画手段４を起動する。Next, when the user gives a circle drawing instruction from the input means 1, the circumferential area drawing means 3 is activated. In the circumferential area drawing means 3, first, the circumferential area continuous portion 31 reads the circumferential area data of the filled circle having the specified radius from the circumferential area storage means 5. Then, the effective pixel (that is, the filled portion) of the circumferential area data read by the arcuate area drawing unit 32 is written in the designated drawing position of the frame buffer 6, and as a result, four arcuate areas are drawn. Next, the inscribed square drawing means activation unit 33 activates the inscribed square drawing means 4.

【００１５】内接正方形描画手段４では、内接正方形領
域計算部４１により塗り潰し円の中心位置と半径から内
接正方形の領域を計算する。そして、形領域塗り潰し４
２によりフレームバッファ６上の該位置に正方形の内部
塗り潰し描画を行う。図５（ｂ）の●印の領域は円周領
域描画手段３により描画された弓形領域のピクセルを表
しており、■印は内接正方形描画手段４により描画され
た正方形内部塗り潰し領域をピクセルを表している。In the inscribed square drawing means 4, the inscribed square area calculation unit 41 calculates the area of the inscribed square from the center position and radius of the filled circle. And shape area filling 4
In step 2, the square internal filling drawing is performed at the position on the frame buffer 6. In FIG. 5 (b), the area marked with ● represents the pixels of the arcuate area drawn by the circumferential area drawing means 3, and the area marked with ■ represents the pixels inside the square interior filled area drawn by the inscribed square drawing means 4. It represents.

【００１６】本発明の第二実施例を示す図６を参照する
と、本実施例は、入力手段１、部分円周領域登録手段
８、円周領域描画手段９、内接正方形手段描画手段４、
部分円周領域記憶手段１０、フレームバッファ６及び表
示手段７から構成されている。Referring to FIG. 6 showing a second embodiment of the present invention, in this embodiment, an input means 1, a partial circumferential area registration means 8, a circumferential area drawing means 9, an inscribed square means drawing means 4,
It is composed of a partial circumferential area storage means 10, a frame buffer 6, and a display means 7.

【００１７】図７は、部分円周領域登録手段８の詳細を
示し、弓形領域計算部８１及び部分円周領域登録部８２
から構成されている。FIG. 7 shows the details of the partial circumferential area registration means 8, which is an arcuate area calculation section 81 and a partial circumferential area registration section 82.
It consists of

【００１８】図８は円周領域描画手段９の詳細を示し部
分円周領域読出部９１、弓形領域描画部９２及び内接正
方形描画手段起動部９３から構成されている。FIG. 8 shows the details of the circumferential area drawing means 9, which is composed of a partial circumferential area reading section 91, an arcuate area drawing section 92 and an inscribed square drawing means starting section 93.

【００１９】また、図９は部分円周領域記憶手段１０に
登録される部分円周領域データと該部分円周データを使
用して描画される塗り潰し円の一例を示す図である。FIG. 9 is a diagram showing an example of partial circle area data registered in the partial circle area storage means 10 and a filled circle drawn using the partial circle data.

【００２０】次に実施例の動作について説明する。Next, the operation of the embodiment will be described.

【００２１】まず、利用者が入力手段１から半径を指定
し円の登録指示を行うと部分円周領域手段８が起動され
る。部分円周領域登録手段８では、弓形領域計算部８１
により、指定された半径から内接する正方形領域を除い
た４つを弓形領域が算出される。そして、部分円周領域
登録部８２により１つの弓形領域が選ばれ、更に弦に垂
直に２分割された後、この図形領域を含む矩形領域が部
分円周領域データとして部分円周領域記憶手段１０に登
録される。図９に半径８の塗り潰し円に関する一例を示
すが、図１０（ａ）に示した（１）の弓形領域を２分割
した領域を含む部分円周領域データが算出され登録され
る。First, when the user specifies a radius from the input means 1 and gives an instruction to register a circle, the partial circumferential area means 8 is activated. In the partial circumference area registration means 8, the arcuate area calculation unit 81
Thus, four arcuate regions are calculated by removing the inscribed square region from the designated radius. Then, one arcuate area is selected by the partial circumferential area registration unit 82 and further divided into two perpendicular to the chord, and the rectangular area including this graphic area is stored as partial circumferential area data as the partial circumferential area storage means 10. Be registered with. FIG. 9 shows an example of a filled circle having a radius of 8, but partial circumferential area data including an area obtained by dividing the arcuate area of (1) shown in FIG. 10A into two is calculated and registered.

【００２２】次に、利用者が入力手段１から円描画指示
を行うと、円周領域描画手段９が起動される。円周領域
描画手段９では、まず、部分円周領域読出部９１によ
り、部分円周領域記憶手段１０から指定された半径の塗
り潰し円の部分円周領域データを読み出す。そして弓形
領域描画部９２により円の対称性を利用し、読み出した
部分円周領域データから４つの弓形領域を再生し、有効
ピクセス（即ち塗り潰し部分）をフレームバッファ６の
指定描画位置に書き込む。その結果、４つの弓形領域が
描画されることになる。次に内接正方形描画手段起動部
９３により内接正方形描画手段４を起動する。Next, when the user gives a circle drawing instruction from the input means 1, the circumferential area drawing means 9 is activated. In the circumferential area drawing unit 9, first, the partial circumferential area reading unit 91 reads the partial circumferential area data of the filled circle having the specified radius from the partial circumferential area storage unit 10. Then, by utilizing the symmetry of the circle by the arcuate area drawing unit 92, four arcuate areas are reproduced from the read partial circumferential area data, and the effective pixels (that is, the filled areas) are written at the designated drawing positions in the frame buffer 6. As a result, four arcuate regions are drawn. Next, the inscribed square drawing means activation unit 93 activates the inscribed square drawing means 4.

【００２３】内接正方形描画手段４では、内接正方形領
域計算部４１により塗り潰し円の中心位置と半径から内
接正方形の領域を計算する。そして、矩形領域塗り潰し
描画部４２によりフレームバッファ６上の該位置に正方
形の内部塗り潰し描画を行う。図１０（ｂ）の●印の領
域は円周領域描画手段９により描画された弓形領域のピ
クセルを表しており、■印は内接正方形描画手段４によ
り描画された正方形内部塗り潰し領域のピクセルを表し
ている。In the inscribed square drawing means 4, the inscribed square area calculation unit 41 calculates the area of the inscribed square from the center position and radius of the filled circle. Then, the rectangular area filling drawing unit 42 draws a square inside drawing at the position on the frame buffer 6. In FIG. 10 (b), the area marked with ● represents the pixels in the arcuate area drawn by the circumferential area drawing means 9, and the area marked with ■ represents the pixels in the square interior filled area drawn by the inscribed square drawing means 4. It represents.

【００２４】尚、フレームバッファ６に書き込まれたデ
ータは一定時間間隔で表示手段７に反映される。The data written in the frame buffer 6 is reflected on the display means 7 at regular time intervals.

【００２５】[0025]

【発明の効果】以上説明したように、頻繁に使用する塗
り潰し円の描画データの一部分を登録することにより、
登録に必要な領域も削除でき、且つ描画時にコピー処理
が行える為、高速描画が可能となるという効果がある。As described above, by registering a part of drawing data of a filled circle that is frequently used,
Since the area required for registration can be deleted and the copy processing can be performed at the time of drawing, there is an effect that high speed drawing is possible.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の塗り潰し円描画方法の第一実施例を示
す図である。FIG. 1 is a diagram showing a first embodiment of a filled circle drawing method of the present invention.

【図２】図１中の円周領域登録手段２における処理の流
れを示す図である。FIG. 2 is a diagram showing a flow of processing in a circumferential area registration means 2 in FIG.

【図３】図１中の円周領域描画手段における処理の流れ
を示す図である。FIG. 3 is a diagram showing the flow of processing in the circumferential area drawing means in FIG.

【図４】図１中の内接正方形描画手段４における処理の
流れを示す図である。FIG. 4 is a diagram showing a flow of processing in an inscribed square drawing means 4 in FIG.

【図５】図１中の円周領域記憶手段５に格納される円周
領域データと描画される塗り潰しの一例を示す図であ
る。FIG. 5 is a diagram showing an example of the circumferential area data stored in the circumferential area storage unit 5 in FIG. 1 and the painted filling.

【図６】本発明の塗り潰し円描画方法の第二実施例を示
す図である。FIG. 6 is a diagram showing a second embodiment of the filled circle drawing method of the present invention.

【図７】図６中の部分円周領域登録手段８における流れ
を示す図である。FIG. 7 is a diagram showing a flow in the partial circumferential area registration means 8 in FIG.

【図８】図６中の円周領域描画手段９の処理における流
れを示す図である。FIG. 8 is a diagram showing a flow in processing of a circumferential area drawing means 9 in FIG.

【図９】図６中を部分円周領域記憶手段１０に格納され
る部分円周領域データと描画される塗り潰し円の一例を
示す図である。FIG. 9 is a diagram showing an example of partial circle area data stored in the partial circle area storage unit 10 in FIG. 6 and a filled circle drawn.

【符号の説明】[Explanation of symbols]

１ 入力手段 ２ 円周領域登録手段 ３ 円周領域描画手段 ４ 内接正方形描画手段 ５ 円周領域記憶手段 ６ フレームバッファ ７ 表示手段 ８ 部分円周領域登録手段 ９ 円周領域描画手段 １０ 部分円周領域記憶手段 DESCRIPTION OF SYMBOLS 1 Input means 2 Circumference area registration means 3 Circumference area drawing means 4 Inscribed square drawing means 5 Circumference area storage means 6 Frame buffer 7 Display means 8 Partial circumference area registration means 9 Circumference area drawing means 10 Partial circumference Area storage means

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 フレームバッファと、 複数の異なる半径の塗り潰し円の一部分の描画データを
記憶する円周領域記憶手段と、 円登録指示に起動され、指定された塗り潰し円に対し
て、該円内部領域から該円に内接する正方形領域を除い
た４つを弓形領域に分割し、円周領域データとして前記
円周領域記憶手段に登録する円周領域登録手段と、 円描画指示により起動され、前記円周領域記憶手段から
指定された半径の円周領域データを読み出し前記フレー
ムバッファ該位置に書き込む円周領域描画手段と、 前記円周領域描画手段から起動され、前記フレームバッ
ファの該位置に指定された半径の円に内接する正方形の
塗り潰し描画を行う内接正方形描画手段とを有する図形
表示装置。1. A frame buffer, a circumferential area storage means for storing drawing data of a part of a plurality of filled circles having different radii, and a circle registration instruction, which is activated for a designated filled circle, inside the circle. Circle area registration means for dividing four areas excluding a square area inscribed in the circle into arcuate areas, and registering the circle area data in the circumference area storage means; A circumferential area drawing means for reading the circumferential area data having a specified radius from the circumferential area storage means and writing the circumferential area data in the frame buffer at the position, and the circumferential area drawing means activated by the circumferential area drawing means and designated at the position in the frame buffer. A graphic display device having an inscribed square drawing means for performing a filled drawing of a square inscribed in a circle having a different radius. 【請求項２】 フレームハッファと、 複数の異なる半径の塗り潰し円の一部分の描画データを
記憶する部分円周領域記憶手段と、 円登録指示により起動され、指定された塗り潰し円に対
して、該円内部領域から該円に内接する正方形領域を除
いた４つの弓形領域のうち１つを弦に垂直に２分割する
した領域を部分円周領域データとして前記部分円周領域
記憶手段に登録する部分円周領域登録手段と、 円描画指示により起動され、前記部分円周領域記憶手段
から指定された半径の部分円周領域データを読み出し、
円の対称性を利用し部分円周領域データから前記部分円
周領域登録手段が部分円周領域データ登録時に作成した
４つの弓形領域を再生し前記フレームバッファの該位置
に書き込む円周領域描画手段と、 前記円周領域描画手段から起動され、前記フレームバッ
ファの該位置に指定された半径の円に内接する正方形の
塗り潰し描画を行う内接正方形描画手段とを有する図形
表示装置。2. A frame huffer, a partial circumferential area storage means for storing drawing data of a part of a plurality of filled circles having different radii, and a circle registration instruction activated for a designated filled circle for the designated filled circle. A region in which one of four arcuate regions excluding a square region inscribed in the circle from the inside region of the circle is divided into two perpendicular to the chord is registered as partial circumferential region data in the partial circumferential region storage means. Circumferential region registration means, activated by a circle drawing instruction, reads out partial circumferential region data of a specified radius from the partial circumferential region storage means,
A circumferential area drawing means for reproducing the four arcuate areas created by the partial circumferential area registration means at the time of registering the partial circumferential area data from the partial circumferential area data by utilizing the symmetry of the circle and writing the four arcuate areas at the positions of the frame buffer. And a inscribed square drawing unit that is activated by the circumferential area drawing unit and draws a square inscribed in a circle having a radius designated at the position of the frame buffer.
JP4151665A 1992-06-11 1992-06-11 Graphic display device Withdrawn JPH0683971A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4151665A JPH0683971A (en) 1992-06-11 1992-06-11 Graphic display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4151665A JPH0683971A (en) 1992-06-11 1992-06-11 Graphic display device

Publications (1)

Publication Number Publication Date
JPH0683971A true JPH0683971A (en) 1994-03-25

Family

ID=15523558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4151665A Withdrawn JPH0683971A (en) 1992-06-11 1992-06-11 Graphic display device

Country Status (1)

Country Link
JP (1) JPH0683971A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6128339A (en) * 1997-02-13 2000-10-03 Samsung Electronics Co., Ltd. Apparatus and method for masking video data errors
US6226014B1 (en) 1997-07-15 2001-05-01 Samsung Electronics Co., Ltd. Ellipse filling graphics method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6128339A (en) * 1997-02-13 2000-10-03 Samsung Electronics Co., Ltd. Apparatus and method for masking video data errors
US6226014B1 (en) 1997-07-15 2001-05-01 Samsung Electronics Co., Ltd. Ellipse filling graphics method
CN1108589C (en) * 1997-07-15 2003-05-14 三星电子株式会社 Ellipse filling graphics method

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