JPH06290226A - Graphic processor - Google Patents

Abstract

PURPOSE:To make an activated overlay drawing easy to see and improve the operability of CAD by making the color of the activated overlay drawing opposite in hue to those of other overlapping overlay drawings. CONSTITUTION:It is judged whether or not the activated overlay drawing overlaps with other overlay drawings. When there is no overlapping overlay drawing, the color of the activated overlay drawing is not changed specially. If there is an overlapping overlay drawing, for example, in case of (a), two other overlay drawings overlap with the activated overlay drawing. The colors are green and blue respectively. Here, a hue ring obtained by dividing the hue equally into 12 is used and the color of the activated drawing, i.e., blue is changed into red positioned right on the opposite side to green and blue. Consequently, the drawings can be made easily distinctive and the operability is improved to shorten the operation time.

Description

Detailed Description of the Invention

[0001]

The present invention is particularly applicable to CAD (Computer).
The present invention relates to a graphic processing device of an Aided Design device.

[0002]

2. Description of the Related Art FIG. 6 shows a configuration of the present invention and a conventional graphic processing apparatus. Generally, in a graphic input device such as CAD, a central processing unit for processing input information
(CPU) and command menu area that displays commands
21, a display device 2 for displaying two graphic drawing areas 22 for displaying graphic elements such as straight lines and circles, and for selecting arbitrary position information of the display device 2 and displayed processing commands. A pointing device (mouse, digitizer, etc.) 4 having a decision button 41 for determining the selected command and position information, a keyboard 5 for inputting characters and numerical values, and graphic data are stored. It is composed of an external storage device 6 and a plotter 7 for outputting a drawing.

The overlay function in the CAD system is a function for simultaneously displaying registered files other than those being drawn on the screen to perform reference design. 1 in this function
Each file is called an overlay drawing. By using overlay drawings, you can create a detailed drawing by dividing it into parts, see only the details in the completed drawing, and perform plot output in overlay drawing units. Therefore, it is possible to efficiently proceed with work on a complicated drawing. An image diagram of the overlay function in which a plurality of overlay drawings overlap is shown in FIG.

[0004]

However, in the conventional CAD system, when setting is performed by using the overlay function, when the number of overlay drawings is large and overlay drawings of similar colors overlap each other, the colors of the mutual drawings are not displayed. The distinction became difficult and the operability was significantly deteriorated. Also,
When the active overlay drawing, which is an editable overlay drawing, and another overlay drawing partially overlap with each other by elements such as line segments, the effect will be magnified, making it difficult to distinguish between the drawings and making it difficult to edit. Was causing problems. The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a graphic processing apparatus that makes it easier to see an active-designated overlay drawing and improves the operability of CAD.

[0005]

In order to achieve the above object, the graphic processing apparatus of the present invention is active when an overlay drawing designated as active and another overlay drawing partially overlap each other by elements such as line segments. The colors of the specified overlay drawings are opposite in hue to those of the other overlay drawings so that they can be easily distinguished from each other.

[0006]

Therefore, according to the present invention, when designing or drawing using CAD, even if there is an overlay drawing that overlaps with the active-designated overlay drawing, it is easy to distinguish between each other by improving the operability of CAD. Can be improved.

[0007]

Embodiments of the present invention will be described with reference to the drawings. In the figure processing device, as shown in FIG. 7, the data representing the line segment includes the start point coordinates (X ₁ , Y ₁ ), the end point coordinates (X ₂ , Y ₂ ), the line segment thickness, and the line segment color. There are data to represent and other data.

FIG. 9 shows a functional image for detecting the overlap of overlay drawings in one embodiment of the present invention. In FIG. 9, 31 is a display device (CRT), 33 is a digital-analog conversion device (D / A / C), 34 is an image memory,
Reference numeral 35 is a display control device, 36 is a main memory, and 37 is a CPU, and the display device 31 receives information on an actual screen from the image memory 34 via the digital-analog conversion device 33. That is, the data on the image memory 34 is an actual screen itself in terms of image. Further, the image memory 34 causes the display controller 35 to convert the data in the main memory 36 as shown in FIG. Here, the display control device 35 performs calculation (X ₁ , Y ₁ ),
Interpolation between (X ₂ , Y ₂ ) results in a solid line. When the display control device 35 writes data in the image memory 34, RMW (read modify write) is performed to interpolate overlapping colors. That is, for example, if there is black data on the image memory 34 and the data to be written is red, the black data and the red data are added, and red is written as data in the color element memory. If yellow data already exists in the image memory 34 and red is written, two data are calculated to write orange data in the memory. By utilizing this, it can be considered that elements other than the data of black are not elements of the overlay drawing. In other words, using the data read at the time of R.M.W., it is compared with the color of the drawing ground, black, and if it is the same here, 0 is written in the other part of the data format. If it exists), the data of 1 is written. By referring to this data, it is possible to determine whether the active-designated overlay drawing overlaps with another overlay drawing. If there are no overlapping overlay drawings, the color of the active-designated overlay drawing is not changed. If there are overlapping overlay drawings, the present invention is carried out as shown in FIGS. The configuration of the graphic processing device for carrying out the present invention is the same as that of the conventional example as shown in FIG.

If there is an overlay drawing overlapping the active-designated overlay drawing, the data of the active-designated element is fetched. The process of converting data is shown in FIG. Here, the data of the line segment shown in FIG. 7 is used. As data representing the line segment, the coordinates of the starting point (X ₁ ,
Y _1), Komu takes the coordinates of the end point (X _2, Y _2). After that, the data showing the color of the line segment is taken in, and the thickness of the line segment and other data are taken in. Here, the data representing the color is 0101. When converting this color, for example, by using the exclusive logic, the data 0101 is converted into the data 1010, and this data is put in the area containing the original data 0101. Convert colors. Examples will be shown below.

First, in FIG. 1, (a) is an initial state. In FIG. 1, two overlay drawings overlap each other in addition to the active-designated overlay drawing. The colors are green and blue respectively. Here, a hue circle that divides the hue into 12 equal parts is used. The color wheel is shown in FIG. When blue and navy blue used in Fig. 1 are divided into 12 equal parts by dividing the color circle, blue is considered by considering the color as a vector.
Alternatively, it is possible to obtain the color having the largest hue difference for navy blue. In this case, the entire figure is changed to red, which is located at the opposite position in the hue circle. Here, the color green is not changed when the hue circle is divided into 12 equal parts, so the color is not changed. There is another yellow figure, but since it does not overlap with the active figure, the color is not changed. Therefore, in Fig. 1 (b), the active designated overlay drawing is determined to be red, and at the same time, the color of the coordinate axis in the screen is also red, so that the active designated overlay drawing can be distinguished from other overlapping overlay drawings. It becomes easier to stick. In the case of FIG. 2,
The orange and blue figures overlap the active dark blue figure. In this case, when the color vectors are combined using the hue circle, the color with the largest hue difference is yellow-green. Therefore, in this case, the entire dark blue figure and the color of the coordinate axis are converted to yellow green. As a result, the active overlay drawing and other overlapping overlay drawings can be easily distinguished, operability is improved, and work time can be shortened. Also, it is obvious that the same effect can be obtained by similarly increasing the difference in brightness or saturation.

FIG. 4 is a flowchart for carrying out the present invention.

[0012]

As is apparent from the above-described embodiments, the present invention has an effect that even in a drawing in which a large number of overlay drawings are overlapped, it is easy to distinguish each overlay drawing and compatibility is improved.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of changing a color of an active-designated overlay drawing according to an embodiment of the present invention.

FIG. 2 is a diagram showing another example of changing the color of the active-designated overlay drawing in the embodiment of the present invention.

FIG. 3 is a diagram showing an image of a CAD overlay function in the present invention.

FIG. 4 is a flowchart in one embodiment of the present invention.

FIG. 5 is a diagram showing a hue circle used for carrying out the present invention.

FIG. 6 is a configuration diagram of a graphic processing device according to an embodiment of the present invention and a conventional example.

FIG. 7 is a diagram showing components of a line segment in one embodiment of the present invention.

FIG. 8 is a diagram showing an example of data conversion according to an embodiment of the present invention.

FIG. 9 is a diagram showing a functional image for detecting an overlap between overlay drawings according to an embodiment of the present invention.

[Explanation of symbols] 1,37 ... Central processing unit (CPU), 2, 31 ... Display device
(CRT), 4 ... Pointing device, 5 ... Keyboard, 6 ... External storage device, 7 ... Plotter, 21 ...
Command menu area, 22 ... Graphic drawing area, 33 ... Digital-analog conversion device (D / A / C), 35 ... Display control device, 36 ... Main memory, 41 ... Enter button.

Claims (4)

[Claims] 1. A computer system comprising at least a data processing device, a display device for displaying characters and figures, and a pointing device such as a mouse for pointing characters and figures on the display device, the display system comprising: In the function to display a plurality of registered drawing files other than those being drawn on the screen of the device at the same time, elements such as drawing line segments of the editable file that is displayed are other drawing line segments that are being displayed at the same time. A graphic processing device having a function of detecting a part or all of the overlapping parts of the above elements and a function of increasing the hue difference when the hue difference between the two is small. 2. A computer system comprising at least a data processing device, a display device for displaying characters and graphics, and a pointing device such as a mouse for pointing characters and graphics on the display device, the display system comprising: In the function to display a plurality of registered drawing files other than those being drawn on the screen of the device at the same time, elements such as drawing line segments of the editable file that is displayed are other drawing line segments that are being displayed at the same time. A graphic processing apparatus having a function of detecting a part or all of the elements overlapping with each other and a function of increasing the brightness difference when the brightness difference between the two is small. 3. A computer system comprising at least a data processing device, a display device for displaying characters and figures, and a pointing device such as a mouse for indicating characters and figures on the display device. In the function to display a plurality of registered drawing files other than those being drawn on the screen of the device at the same time, elements such as drawing line segments of the editable file that is displayed are other drawing line segments that are being displayed at the same time. A graphic processing apparatus having a function of detecting a part or all of the elements overlapping with each other and a function of increasing a difference in saturation when the difference in saturation between the two is small. 4. A computer system comprising at least a data processing device, a display device for displaying characters and graphics, and a pointing device such as a mouse for pointing characters and graphics on the display device, the display system comprising: In the function to display a plurality of registered drawing files other than those being drawn on the screen of the device at the same time, elements such as drawing line segments of the editable file that is displayed are other drawing line segments that are being displayed at the same time. A graphic processing device characterized by having a function of detecting a part or all of an overlapping portion of elements such as, and a function of changing the line types thereof.