JPS6015531A - Measuring apparatus allowing color display - Google Patents

Abstract

PURPOSE:To prevent discoloring at overlapped parts of patterns by providing a display section with a plurality of memory means with the color attributes and mutual preference of pattern data set to generate a display signal based on the color attributes and the preference. CONSTITUTION:Pattern data sent from a measuring section through a system bus 20 are written into memory areas R, G, B, EX1 and EX2 separately according to the respective attributes thereof. The data in the areas R, G, B, EX1 and EX2 are read out sequentially and inputted into a preference circuit 2. The area EX1 stores the pattern data for rules, the area EX2 the pattern data for a marker cursor and the areas R, G and B the pattern data of measurement results to be displayed. With a parallel reading of the areas EX1, EX2, B, G and R, read signals ex1, ex2, (b), (g) and (r) are inputted into a circuit 22. Thus, the display 30 performs an indication in the color attributes and preference set to prevent discoloring at overlapped parts of patterns.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a measuring device that displays in color, and more particularly to a measuring device that displays in color and is suitable for displaying a graph or the like having a plurality of patterns that are to be changed independently of each other.

In the field of measuring devices, a display device capable of displaying graphics such as a CRT is used instead of a meter or numerical display as a means of displaying measurement results, and the measurement results are directly or indirectly processed (hereinafter referred to as (simply referred to as measurement results)
In recent years, it has become widely used to display graphs. In addition, measurement equipment can be used to specify any point on the displayed graph H and read its accuracy (direction), or to specify the range to be calculated on the graph in order to perform further calculations on the measurement results. It is also possible to display a shape called a marker or cursor to facilitate interaction with the line)
be exposed. Furthermore, in the above-mentioned display, it is often preferable to simultaneously display graphs of measurement results of multiple a types and graphs to be compared. When the display is done in a single color, the graph elements such as the curve (in some cases, points or areas) that indicate the measurement result itself, cursor, marker, ruled line, etc. are displayed overlapping each other, making the display extremely difficult to read. .

In order to solve this problem, the display should be colored and the curves, markers, etc. of each measurement result should be given different colors. FIG. 1 shows an example of a graphical representation of the measurement results of filter transfer characteristics. In Figure 1, are there any lines on the display surface 2? An area for the graph is set by #4, and three measurement result curves 6.8.10 representing the absolute magnitude, phase, and absolute value for superimposition of the transfer function are displayed here. Furthermore, a marker 12° 14 and a cursor 16 are also displayed, and their positions can be moved freely using knobs (not shown) on the panel of the measuring instrument. Since the law has no direct relation to the gist of the present invention and is a well-known matter, it will not be explained here.) In order to make the display easier to read, the ruled line 4 is displayed in cyan, the curves 6, 8, and 10 of the measurement results are displayed in red and sweat, the markers 12 and 14 are displayed in yellow, and the cursor 16 is displayed in magenta. Note that the ruled lines 4 are not in the form of a grid as shown in the figure, but may be, for example, coordinate axes with scales or curved lines.

In a conventional color display device, a storage area is provided for each of the three primary colors of additive coloring, green, and red. When such a color display device is used for the above-mentioned display, there are the following problems.

I) Measurement result curves 6, 8. When updating to, it is necessary to erase the previous curve, but during this erasing, other patterns may also be erased or the display color may change. For example, curve 6 of the measurement result is stored in the storage area corresponding to green, so if you clear the storage area to erase it, marker 12. ．． 14 changes color from yellow to red, and from cyan to black with 4 ruled lines.

■) Intersections of multiple patterns change color. For example, the intersection of the cursor 16 displayed in magenta and the ruled line 4 displayed in cyan changes color to white, resulting in an extremely unsightly display.

The above intergranular points can be solved by software.

However, this increases the burden on the software, and there are also problems in that it is not practical in terms of speed when displaying measurement results in real time.

It is an object of the present invention to solve the above-mentioned problems, to change a part of a displayed pattern at high speed independently of other patterns, and to prevent discoloration in a part where a plurality of patterns overlap. To achieve this objective, the color display measuring device of the present invention is provided with a plurality of storage areas in which patterns to be displayed are stored by category, and each storage area is given a color attribute. Furthermore, by setting priorities between storage areas and displaying the one with the highest priority for areas where patterns overlap,
Prevents the aforementioned discoloration. Note that the color attributes and priorities may be fixed or may be set freely. Of course, the conventional method of displaying various colors by adding colors by setting a few storage areas to the same priority may also be used.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

FIG. 2 is a block diagram of a display unit which is the main part of a measuring device that performs color display according to the present invention. In FIG. 2, pattern data sent from a measuring section (not shown) via a system bus 20 are stored in storage areas R, G, B, and Exl according to their respective attributes.

It is distributed and written to 1Jx2. Also, each storage area R9
G, B, Ex1. The pattern data in number f×2 are sequentially output and input to the priority circuit 22. As explained below, the following priority is set between storage areas: 1(xt(1t=G2B(Ex2) 4),
The storage area gx2 contains pattern data for markers and cursors (corresponding to marker l 2 and 14° cursor 16 in FIG. 1. For the sake of simplicity, unlike in FIG. are displayed in the same color), and the storage areas B-, G, )t are the curve pattern data of the measurement results to be displayed respectively (the curves 10° 6. 8) is stored. The pattern Φ data stored in the storage areas E×1, gX2, B, G, and f() is for each color of magenta, yellow, blue, green, and red, respectively, unless it overlaps with pattern data in other storage areas. is displayed on a raster scan color CRT display (hereinafter simply referred to as a display) 30.Writing/reading of storage areas gX l, E: The procedure and circuit for generating heat are well known, so they will not be particularly illustrated or explained.

Now, in the circuit of FIG. 2, the storage area Bx1° [(x2
, B, G, and R are read out in parallel and each readout signal eX
l, eX2, b, g, r are input to the priority circuit 22. A circuit diagram of an example of the priority circuit 22 is shown in FIG. Third
In the circuit shown, storage area E has the highest priority.
When the readout signal eX2 of X2 is input, the display signal 24°26 representing red and green becomes "1" and the display signal representing blue becomes "0", regardless of the other readout signals r, gSb, and eXl. As a result, the corresponding position on the display 30 is displayed in yellow.Furthermore, under the condition that the read signal ex2 does not exist, the read signal r of the storage areas R, G, and B.

When g and b are input, display signals 24, 26, and 28 representing red, green, and blue, respectively, become 1'. In addition, read out No. 8 “
Since signals 9g and 9b do not inhibit each other, when two or three of these display signals are input at the same time, additive color mixing is performed at the corresponding position on the display 30. Further, only when all the read signals e X 2 + r + g + b do not exist, the read signal e
Xl contributes to the output of this priority circuit, and in order to display magenta, display signals 24 and 28 representing red and green are set to 1'.

As explained above, storage areas Ex1 and Ex2.

Since a priority order is set between B, G, and +, the problem of the prior art with respect to overlapping portions of a plurality of patterns is resolved. Also, when displaying graphs, if you write each curve, ruled line, cursor, marker, etc. in a separate storage area, you can write them in a single storage area without having to consider other patterns that are displayed overlapping each other. You can delete or change the pattern data above.

Note that in the above-described priority circuit, the color attributes and priority order are fixed, but both can be configured to be changeable. An example of such a priority circuit is shown in FIG. In the priority circuit of FIG. 4, storage areas gXl, i3. G.
) is set by the priority setting signal P and the strobe signal 46 so that the eugenic order between them can be set as Exi, )B = G = R or B = G - ㇠〉C × 1! A latch 42 is provided for storage. Furthermore, in order to make it possible to set the color of the pattern corresponding to storage area B×1 in 8 ways, color setting signals Sn,
A latch 40 is provided which is set to 1 by So, SR and a strobe signal 44. Note that elements common to the priority circuit shown in FIG. 3 are given common reference numerals.

Further, the number of storage areas may be increased or decreased as desired, and character codes and the like may be stored. Also, characters are stored in storage area 1 (x
It may be written to l or EX2, or it may be written to storage areas R and G.
, H may be written to one or more of them to obtain a free color by mixing those colors. Alternatively, the display may be configured to display halftones similar to those of cars. Furthermore, any type of display can be used as long as it does not go against the spirit of the present invention. The display signal may also be a signal other than the signals representing the three primary colors, or may be in the form of a combination of signals for each primary color.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of a color display of a measuring instrument, FIG. 2 is a block diagram of a display section of a measuring device that performs color display according to the present invention, and FIG. 3 is an example of a priority circuit in FIG. 2. 4 are circuit diagrams showing another example of the priority circuit. 22: Priority circuit, 24, 26, 28: Display signal, 3
0: Raster scan male-CRT display, u, a,
+t, gXl, gX2: storage area, b, g, r
, exl, cX2: Head of read signal amount Tsuguo Hasegawa, agent of Yokogawa-Hewlett-Packard Corporation, patent attorney

Claims (1)

[Claims] (1) Carry out the prescribed measurements and share the results of the measurements with ij
A measuring device that performs color display, which includes a measurement unit that generates pattern data for visual display, and a display unit that receives the pattern φ data and performs color display, wherein the display unit receives a display signal as input. a display device for color display; a plurality of storage means for storing the pattern data and in which color attributes and mutual priorities are set; and a display device for inputting read signals from the plurality of storage means to display the color A measuring device that performs color display, characterized in that it is provided with display signal generation means that generates the display signal based on attributes and priorities. (2. In the measuring device that performs color display according to claim 1, the pattern data represents a graph of the results of the measurement, and at least one of the plurality of storage means includes ruled lines in the graph, Measurement for performing color display, characterized in that pattern data of a cursor and/or marker is stored, and at least one other of the plurality of storage means stores pattern data representing data obtained by the measurement. Device.