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101. 发明专利

JPH0546149A DRAWING PROCESSING METHOD 失效
公开(公告)号：JPH0546149A
公开(公告)日：1993-02-26
申请号：JP23226391
申请日：1991-08-20
申请人： OKI ELECTRIC IND CO LTD
发明人： TAGUCHI TAMAMI
IPC分类号： B41J5/44 , G06F3/153 , G09G5/20 , G09G5/24
摘要： PURPOSE:To shorten a simple wait time and to shorten the total time for conversion processing by deciding whether or not data need to be loaded from an external memory at the time of input drawing data image conversion processing, and converting drawing data which need to be loaded not immediately, but in parallel to the loading of font data as to subsequently inputted drawing data which need to be loaded. CONSTITUTION:Three letters 'a', 'i', and 'o' (Japanese vowel) among drawing data 1 are the drawing data which need not be loaded from the external memory and two letters 'u' and 'e' are the drawing data which need to be loaded from the external memory. Then the letters which need not be loaded are converted in parallel to the conversion of the two letters which need to be loaded from the external memory and then the time spent merely to wait for the loading to ends is only the time from time t8 to time t9. Namely, the time from t6-t8 between time t6 and t9 when a loading request is made is used effectively for the conversion of the two letters 'a' and 'i'.

102. 发明专利

JPH0535882A CLOSED-AREA PAINTING-OUT DISPLAY METHOD 失效
公开(公告)号：JPH0535882A
公开(公告)日：1993-02-12
申请号：JP18617691
申请日：1991-07-25
申请人： FUJI FACOM CORP , FUJI ELECTRIC CO LTD
发明人： SUZUKI HIROYUKI
IPC分类号： G09G5/20 , G06T11/40 , G09G5/36
摘要： PURPOSE:To speed up processing without any unnecessary processing by deciding conjugate points between respective vectors and painting out only points which are not contiguous. CONSTITUTION:For the generation of a vector by, for example, a processor, a vector which is already generated and a vector to be generated are EORed to remove duplicate points (step S1). Then a sign bit is checked and when the sign bit is set, an advance to a step S3 is made (step S2). Then an X coordinate Xo and drawing point X coordinates X+ or -1 on a memory (line memory) dedicated to painting-out processing are compared between the vector which is already generated and the vector to be generated (step S3) and it is judged whether or not the point is a contiguous point (step S4). Consequently, an advance to a step S5 is made only unless the point is the contiguous point and the painting-out processing is performed. Lastly, it is judged whether border line drawing ends or not and when so, the processing ends (step S6).

103. 发明专利

JPH0520464A DISPLAY ELEMENT SELECTION/DISPLAY DEVICE 失效
公开(公告)号：JPH0520464A
公开(公告)日：1993-01-29
申请号：JP19360491
申请日：1991-07-09
申请人： NEC CORP
发明人： SUZURI MASAKI
IPC分类号： G06F3/153 , G06T11/20 , G06T15/00 , G09G5/20 , G09G5/36
摘要： PURPOSE:To speed up a display processing without executing unnecessary display conversion for overlapped elements in a high speed plotting display processor which requires real time display. CONSTITUTION:Form data where overlapped elements are already eliminated is formed and a display conversion processing is executed by eliminating and synthesizing the overlapped elements in display graphic form data stored in a display graphic form storage means 11 in an overlap element comparison/ elimination means 12 so as to speed up the display processing.

104. 发明专利

JPH0512451A CLIPPING PROCESSOR 失效
公开(公告)号：JPH0512451A
公开(公告)日：1993-01-22
申请号：JP29969891
申请日：1991-10-18
申请人： RICOH KK
发明人： FUJII TATSUYA , SHIRAISHI NAOHITO , FUKUSHIMA MASANOBU , NAKAJIMA TATSUYA , IZAWA YASUHIRO
IPC分类号： G06F3/153 , G06T11/00 , G06T11/20 , G06T15/30 , G09G5/20 , G09G5/36
摘要： PURPOSE:To provide the clipping processor which can enable processing with a small hardware at high speed even to a polygon mapped onto a polygon plane with a pattern. CONSTITUTION:A first polygon end point memory 10 is provided to store the respective kinds of end point information such as the information of two end points X and Y constituting the polygon and mapping information, a screen side generating circuit 170 is provided to judge the polygon side and cross to each screen end point and the inside/outside of the screen, and an intersection calculation circuit 180 is provided to calculate an intersection crossing the polygon side to each screen end point and each end point address of the mapping information at the intersection. This intersection calculation circuit 180 writes the information of the two end points of the intersection crossing the polygon side to the clipped screen end point and the mapping information in a second polygon end point memory 80.

105. 发明专利

JPH0512450A OPTIMUM DISPLAY SYSTEM FOR LINE SEGMENT ON VISIBLE DISPLAY DEVICE 失效
公开(公告)号：JPH0512450A
公开(公告)日：1993-01-22
申请号：JP14831491
申请日：1991-06-20
申请人： NEC SOFTWARE LTD
发明人： HIROOKA SHIGENORI
IPC分类号： G06F3/153 , G06T11/20 , G09G5/20
摘要： PURPOSE:To prevent a line segment from being erroneously recognized as the other type of a line segment in the case of displaying the line segment having the extremely short full length by displaying the terminal part of the line segment without fail. CONSTITUTION:A means 11 is provided to store a line type pattern length for each line type containing a contineous line, dot line, broken line, single dotted chain line and double dotted chain line in a storage device 1, a means 12 is provided to possess the line type pattern length from the storage device 1, a deciding means 13 is provided for the central position of the line type, a possessing means 14 is provided for line segment data, a judging means 15 is provided to judge whether it is necessary to optimize the line segment data or not, a full length calculating means 16 is provided for the line segment data, a central position calculating means 17 is provided for the line segment data, a display position deciding means 18 is provided for the line segment data, an optimizing means 19 is provided for the terminal part of the line segment, a transforming means 20 is provided to device instruction data, and a transmitting means 21 is provided for the device instruction data.

106. 发明专利

JPH04366895A HIGH SPEED PLOTTING SYSTEM 失效
公开(公告)号：JPH04366895A
公开(公告)日：1992-12-18
申请号：JP14283491
申请日：1991-06-14
申请人： NEC CORP
发明人： ENOKI TSUNEHISA
IPC分类号： G06F3/153 , G06T11/00 , G09G5/20
摘要： PURPOSE:To remarkably improve a plotting speed. CONSTITUTION:A main processing circuit controls the whole operation. Plural plotting circuits 2-1 to 2-n are in charge of the contents of one picture display to be displayed on a CRT 5 and respectively image information data are outputted to frame memories 3-1 to 3-n. A frame memory synthesizing circuit 4 generates outputs to the frame memories 3-1 to 3-n, synthesizes contents stored in the memories 3-1 to 3-n and displays the synthesized result on the screen of the CRT 5.

107. 发明专利

JPH04313171A SYSTEM FOR RECORDING AND SELECTING LINE SEGMENT DATA 失效
公开(公告)号：JPH04313171A
公开(公告)日：1992-11-05
申请号：JP10512791
申请日：1991-04-11
申请人： NEC CORP
发明人： SAITOU YUKIHIKO
IPC分类号： G06F3/153 , G06T3/00 , G06T11/00 , G09G5/20 , G09G5/36 , G09G5/38
摘要： PURPOSE:To reduce the calculation amount for processing discriminating a display line segment and a non-display line segment and to shorten screen display processing time when the screen is shifted. CONSTITUTION:A line segment data recording means 4 obtains data indicating the screen specific range when the line segment is the display line segment if the data concerning the coordinate of the line segment for processing is notified from a data input device 3, and the line segment data equipped with the data indicating the line segment and the data indicating the screen specific range are recorded on a line segment data management table 6. A line segment data selection means 5 selects the display line segment by referring to the line segment data management table 6 when the data indicating the change of the location of the screen is inputted by the data input device 3, and the display line segment data is notified to a screen control means 2.

108. 发明专利

JPH04303273A GRAPHIC PREPARING DEVICE 失效
公开(公告)号：JPH04303273A
公开(公告)日：1992-10-27
申请号：JP9343391
申请日：1991-03-30
申请人： TOSHIBA CORP
发明人： IZAWA HIDETO
IPC分类号： B41J2/485 , G06F17/21 , G06T11/20 , G06T11/60 , G09B29/00 , G09G5/20
摘要： PURPOSE:To accurately plot a width line graphic having T-shaped parts represented by T-shaped roads on a map by means of simple operation. CONSTITUTION:This graphic preparing device is provided with a reference graphic decomposing part 51 for extracting graphic data to be displayed from a graphic data buffer 22, and when the extracted data are width line graphic data indicating a width line graphic consisting of two lines opposed to each other with a fixed width, decomposing the data into the reference graphic data of respective lines to display them and then decomposing also other width line graphic data stored in the buffer 22 into reference graphic data. The decomposing part 51 allows an overlap judging part 52 to detect a T-shaped part in which the end part of either one of the width line graphic to be displayed and another width line graphic is overlapped to the intermediate part of the other graphic, and at the time of detecting the overlapped part, corrects said reference graphic data to be displayed so as to remove the overlapped part from the width line graphic to be displayed.

109. 发明专利

JPH04287291A GRAPHIC PLOTTING SYSTEM 失效
公开(公告)号：JPH04287291A
公开(公告)日：1992-10-12
申请号：JP5214891
申请日：1991-03-18
申请人： HITACHI LTD
发明人： MITSUSHIBA YUKO , KOBAYASHI AKIRA , KUWANA TOSHIYUKI
IPC分类号： G09G5/00 , G06T11/00 , G09G5/20 , G09G5/36
摘要： PURPOSE:To perform graphic plotting at a high speed by performing a specializing process on a graphic to which plotting requests are frequently made. CONSTITUTION:Image data which are prepared by performing raster expansion on display dots and registered in advance are read and plotted whenever a request is made against those meeting a certain specific condition of the graphics which are known to have large numbers of plot requesting times without changing an application interface. Since the image data are prepared and registered in advance against the graphic which are known to have large numbers of plot requesting times and the data are read and plotted whenever a request is made, graphics can be plotted at high speeds and the operator of this graphic plotting system can operate the system in a moment.

110. 发明专利

JPH04274575A GRAPHIC PLOTTING SYSTEM 失效
公开(公告)号：JPH04274575A
公开(公告)日：1992-09-30
申请号：JP5840691
申请日：1991-02-28
申请人： FUJITSU LTD
发明人： TAKAGI KAZUSHI , MIYAGAWA HITOSHI
IPC分类号： B41J2/485 , G06T11/20 , G09G5/20
摘要： PURPOSE:To simplify and efficienlty perform the plotting processing of the end point and vertex in the subject system. CONSTITUTION:A vertex table memory 20 for storing a vertex table and a table preparing section 21 which prepares the vertex table against the memory 20 by registering flags indicating the processing modes of segment coordinates, end points, and vertices on the basis of input data are provided and, at the same time, a segment processing section 22, end point processing section 23, and vertex processing section 24 are provided in a plotting processing section 7. Then, when the section 22 performs a segment process by referring to the vertex table, an end point process or vertex process is performed by calling the section 23 or 24 in accordance with the statuses of the flags.

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