JPS62271074A - Display device - Google Patents

Abstract

PURPOSE:To produce a graphic form, etc. at a high speed and with high accuracy by displaying image information as well as a grid on a display screen and then moving freely the position of the displayed grid on the screen. CONSTITUTION:In a grid display mode an operator selects a mark for display of a pop-up menu by a mouse 22 to display this menu on a display 21. Then the operator selects an item shown in 'grid' out of the menu by the mouse 22. Thus a window 32 is displayed within the display 21 as shown in a figure. The grid is displayed in point with selection of an item 'spot' and then in square with selection of an item 'line' respectively. Then the grid space is supplied in the numeric value via a keyboard 23. When the grid is moved, an item 'grid position' is selected on the pop-up menu. Then the mouse 22 is moved freely and a button is clicked with a cursor is set at a standard point. Thus a new original point is fixed.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention "Field of Industrial Application" The present invention relates to a display device capable of displaying a grid on a screen.

"Prior Art" When editing images using a display such as a CRT, it is preferable to have some kind of reference position displayed on the work surface, such as when drawing on graph paper with ruled lines printed on it. There are many cases. For this reason, there are devices in which a grid is displayed on the display screen.

FIG. 12 shows an example of a display screen on which grid points are displayed. Accurate work is possible by selecting a desired one of these lattice points and moving the image, or by selecting an arbitrary lattice point as a reference point for graphic creation.

``Problems to be Solved by the Invention'' In conventional display devices, grid points are always displayed at predetermined intervals above, below, left and right, using a fixed position on the display screen as a reference point. For this reason, even if one image is created using these lattice points as reference points, for example, other images or figures added to this image cannot always use these lattice points as accurate reference points. If the grid point and the position where the figure is created are misaligned,
A reference point was determined by eye based on two adjacent grid points, and this virtual point was used to edit the image.

For this reason, even if a figure created using a lattice point as a reference is accurately positioned, a figure created without using a lattice point as a reference in the vicinity may have a positional error of several pixels. As a result, problems arose, such as line segments that were supposed to be drawn parallel to each other being slightly tilted, and shapes that were supposed to be squares becoming rectangular.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a display device that can go one step further than editing images in accordance with grids, and can set grids in accordance with image editing.

"Means for Solving the Problem" The present invention includes a display screen for displaying image information, a grid display means for displaying a grid together with the image information on the display screen, and a grid for displaying the displayed grid. This display device is equipped with a grid moving means for moving the position on the display screen.

Here, the grid display means may display a grid within a window set on the display screen to display the pitch turn. Furthermore, the displayed grid may be composed of dots arranged at predetermined intervals in the vertical and horizontal directions of the display screen, or alternatively, it may be a square grid.

According to the present invention, since the grid can be moved on the display screen, the coordinates for editing can be changed, making it possible to perform accurate editing work.

"Example" The present invention will be described in detail below with reference to Examples.

FIG. 1 shows the main part of the circuit configuration of a display device in one embodiment of the present invention.

The display device of this embodiment is equipped with a CPU (central processing unit) 11, and is connected to each part of the device via a bus 12. Of these, the RAM 13 is a random access memory for temporarily storing various data. The image file storage unit 14 is a memory that stores various image files in which image information is expressed in bit patterns. The lattice information storage unit 15 is a memory that stores various information regarding the lattice, such as the display unit of the lattice and the interval between the lattices. The image storage unit 16 is a memory that stores images to be displayed. The grid creation logic circuit 17 is a logic circuit for performing signal processing to create a grid. The program storage device 18 is a memory that stores programs for performing various controls of this display device.

The display control unit 19 is a device for controlling the display on the display 21, and has a built-in display RAM. The display 21 is a device that can display various images using bit patterns. Mouse 22 is a pointing device. By moving this on the desk, data regarding its direction and length can be sent to the CPU II, and an image can be created on the display 21 and various instructions can be given. The keyboard 23 is used for manually editing documents, etc., and the display device can be automatically set to various modes using the various mode keys attached.

Regarding the display device having the above configuration, an image editing operation using a grid will be explained with reference to FIG.

When this display device is powered on, the display 21 displays an initial screen (step 2).

At this time, various image files (files storing image data) stored in the image file storage section 14 are individually displayed as figures (icons) representing the files. The operator selects the icon to be edited using the mouse 22 (step ■; Y). As a result, the CPU II reads the corresponding image file from the image file storage section 14 and stores it in the image storage section 16 (step 2).

When the above operations are completed, the contents written in the image storage section 16 are sent to the display control section 19, and the display 21
A window for image editing is set above (step ■). In this state, the already written image is displayed in the window, and the grid has not yet been displayed.

When displaying a grid, the operator displays a window called a pop-up menu 5- on the display 8 in this state. To display the pop-up menu, select a pop-up menu display mark (not shown) displayed at the top of the display 21 with the mouse 22 (step 2; Y). If another mark is selected (N), other operations such as image editing will be performed (step ■).

When the mark for displaying the pop-up menu is selected,
As shown in FIG. 3, a pop-up menu 31 is displayed on the display 21 (step 2). In the pop-up menu L-31, there is an item labeled "grid". The operator uses the mouse 22 to select this item “
grid" (step ■; Y). If an item other than this is selected (N>), the work for the selected item will be executed (step ■).

When the item "grid" is selected, a window 32 as shown in FIG. 4 is displayed in the display 21 (step @). To display the grid in the form of dots, select "Dots" in the grid display item, and to display the grid in grids, select "Line" in this item. The grid spacing is entered manually using numerical values from the numeric keypad on the keyboard 23. The unit of the numerical value at this time can be selected from the "unit" item.

Note that the "Limit to grid" item specifies whether or not to move the cursor in steps at grid intervals when creating an image, and these can be specified individually in both the horizontal and vertical directions.

After inputting or changing various data as described above, select the item "Complete" displayed at the top of the window 32 with the mouse 22 (step 2; Y). As a result, the contents are stored in the grid information storage section 15 (step 0).

Thereafter, the window 32 shown in FIG. 4 disappears (Step @), and the desired grid is displayed in the area where the image is displayed (Step ■).

If this display device is set to the editing state in this state (step ①), it becomes possible to edit the image using the grid as a reference position. When the user performs an operation to close the image file using the mouse 22, the edited image file is closed and its contents are stored in the image file storage section.

By the way, if you want to change the grid display interval or other conditions during or at the beginning of editing, please display the pop-up menu shown in Figure 2 (step ■) and change the contents of the grid-related data. Bye.

The following FIG. 5 is for explaining in more detail the operation of displaying the grid (step 2 in FIG. 2).

The CPU II reads out the contents of the grid information storage section 15 and determines whether or not to display the grid (step 2 in FIG. 5). In the normal case of displaying a grid, the origin (0,
O) is determined (step ■). Next, it is determined whether the grid is displayed as points or lines (step ■), and if the grid is displayed as points, the coordinates corresponding to the grid points are calculated (step ■), and the calculation results are Create a lattice logic circuit 17
(Step ■). If the grid is displayed as lines, the coordinates corresponding to the grid are calculated (step (2)), and the calculation results are similarly stored in the grid creation logic circuit 17 (step (2)).

Thereafter, the image corresponding to the image display window 35 is read out bit by bit from the image storage section 16 (step 2). The lattice creation logic circuit 17 determines whether these bit information corresponds to a lattice (Step 2), and if it does (Y), inverts the black and white of this bit (Step 2). Then, the bit information is written to the corresponding address in the display RAM of the display control unit 19 (step @). As a result, the white parts of the image will be displayed black and the black parts will be displayed white, creating an image for displaying a grid.

If the read bit information does not correspond to the grid (step ■; N), the pit information is directly transferred to the display RA.
Write to M (step ■). This is because the images stored in the image storage section 16 are displayed on the display 21 as they are in those portions.

When writing of 1 bit of image to the display RAM is completed, if there is no command to finish displaying the image at this point (step ■; N), the next address on the image is specified (step ■). , similar image creation operations are repeated (steps ■ to ■). Once the image has been created to the bottom right of the image display window 35, the same operation is repeated from the top left. In this way, the latest image is always written in the display RAM, and the image display window 35 in the display 21 displays information in which the original grid image is superimposed.

In contrast, the grid is not displayed in step ■ (N)
If *, the data written in the grid creation logic circuit 17 is cleared (step ■). This will prevent the grid from being displayed when editing the image.

FIG. 6 is for explaining the image editing work in the image display window.

When editing an image, make sure the window for the desired image file is open (step
), the operator uses the mouse 22 to select the display 2.
Select the edit mark in the window displayed at the top of 1. If the edit mark is selected (step ■; Y)
, the display device enters the editing mode, allowing graphic editing using the mouse 22 (step 2). If a mark other than the edit mark is selected with the mouse 22, (
Step ■;N), and the selected operation is performed (Step ■).

Editing of the image is performed by selecting the close mark in the window provided at the top of the display 21 with the mouse 22 (step 2; Y). In this case, the image written in the image storage i16 is stored in the image file storage section 14 (step 2). The current image created using the display 21 is written in the image storage section 16, but grid information is not written therein. The grid information is information used when creating an image, and is used in the grid creation logic circuit 17.
This is because the information is created by and exists only in the display RAM in the display control unit 19.

When the image file is stored in the image file storage section, the contents of the display RA 14 are also cleared, and an image of the initial menu is written instead and displayed on the display 21 (step (2)).

FIG. 7 shows a display example of the image display window in the image editing state.

In this case, grid point 3- is displayed in the image display window 35.
6 are displayed, and the operator is creating, for example, a rectangle 37 using these grid points 36 as a reference. FIG. 8 shows a case in which similar editing is performed by displaying a grid 38 within the window 35.

Next, the movement of the grid, which is a feature of the present invention, will be explained.

FIG. 9 shows this work.

If a grid is displayed in the image display window (
In step (2); Y) in FIG. 9, the operator performs an operation to display a pop-up menu on the display 21 when moving the grid. That is, when the pop-up menu mark is selected using the mouse 22 (step 2; Y), the pop-up menu 31 is displayed on the display 21 as shown in FIG. 10 (step 2).
).

In this state, the operator operates the mouse 22 to select the item "grid position" (step 2; Y). Specifically, at this point, the button on the mouse 22 that has been pressed until now is released.

When the item "grid position" is selected, the pop-up menu 31 is deleted from the display 21 (step ■). The operator freely moves the mouse 22 in this state and clicks the button when the cursor matches the point to be used as a reference (step 2). CPU II writes the coordinates of this position to RAM 13 (step ■)
. Then, the coordinates of the new origin relative to the previous origin (0, 0) are calculated (step ■). This is because the operator can freely set the reference point within the display window 35, so it is necessary to convert this into the coordinates of the origin.

Let me give you an example. For example, assume that the coordinates of the reference point set by operating the mouse 22 are (75, 103).

The grid display interval is “” for both X and Y coordinate axes.
10”, the X coordinate value “75” and Y coordinate value “103” of the reference point are both divided by the numerical value “10”, and the new origin (5, 3) is calculated from the remainders “5” and “3”. ) is required.

Once the coordinates of the origin are determined, the coordinates of the grid are calculated (step ■). As mentioned above, this calculation is performed using grid points or grid points.

When the calculation result is obtained, the contents of the grid creation logic circuit 17 are rewritten with this new data (step @). As a result, the changed lattice is displayed in the image display window 35 (step ■).

FIG. 11 shows the graphics displayed in the image display window after the change, corresponding to FIG. 7. It can be seen that new figures 39 and the like can be easily created using the displayed new grid points 36'.

In the embodiments described above, various operations are performed using the mouse 22, but similar operations can be performed using other pointing devices, numeric keys, or the like. Further, in the embodiment, the coordinates of the destination are set by actually moving the cursor, but the amount of movement may be entered numerically. Further, the coordinates can be displayed using other display means, such as a cursor that displays the position as a point, or a cursor that displays the position as a cross.

Further, in the embodiment, grids are displayed when editing an image, but it is also possible to display these grids when creating normal sentences or tables, and to change the display position as appropriate.

"Effects of the Invention" As described above, according to the present invention, the position of the grid can be freely moved on the display, so the work of creating figures etc. can be performed quickly and reliably.

[Brief explanation of the drawing]

Figures 1 to 9 are for explaining one embodiment of the present invention, of which Figure 1 is a block diagram showing the main part of the circuit configuration of the display device, and Figure 2 is an image using a grid. Fig. 3 is a plan view of the display showing the pop-up menu, Fig. 4 is a plan view of the window displaying data related to the grid, and Fig. 5 is a flowchart showing the overall flow of editing work. Figure 6 is a flowchart showing the display operation; Figure 6 is a flowchart showing the operation of the image editing section;
The figure is a plan view of an image display window in which grid points are displayed, FIG. 8 is a plan view of an image display window in which squares are displayed, FIG. The figure is a top view of the display showing the pop-up menu when moving the grid, the first
FIG. 1 is a plan view of the image display window after the grid has been moved, and FIG. 12 is a plan view showing an example of the display screen on which the grid is displayed. 11...CPU. 14... Image file storage unit, 15...
... Lattice information storage section, 16 ... Image storage section, 17 ... Lattice creation logic circuit, 19 ... Display control section, 21 ... Display , 22... Mouse, 32... Window, 36... Grid point, 38... Square. Applicant: Fuji Xerox Co., Ltd. Agent

Claims (1)

[Claims] 1. A display screen for displaying image information, a grid display means for displaying a grid together with the image information on the display screen, and moving the position of the displayed grid on the display screen. A display device comprising a grid moving means for moving the grid. 2. The display device according to claim 1, wherein the grid display means displays a grid within a window set on the display screen to display the bit pattern. 3. Claim 1, characterized in that the displayed grid is composed of dots arranged at predetermined intervals in the vertical and horizontal directions of the display screen.
Display device as described in section. 4. The display according to claim 1, wherein the grid to be displayed is a grid made up of straight lines drawn in parallel at predetermined intervals in the vertical and horizontal directions of the display screen. Device.