JPH0445487A - Method and device for composite display - Google Patents

Abstract

PURPOSE:To easily compose an image with a background image by giving a window attributes of transparency and opaqueness and performing an OR process, etc. CONSTITUTION:An attribute giving part 3 gives the attribute of transparency or opaqueness to the background part of a window memory according to the control data from a control part 8. Plotting by a superimposition writing part 5 is selected for the contents of the window memory which are given the attribute of opaqueness and plotting by an OR processing part 6 is selected for the contents of the memory window which are given the attribute of opaqueness. Therefore, the superimposition plotting or composite plotting are selected for each window, and a desired image is plotted on an image memory 4 eventually and displayed visibly on a display part 7.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method and apparatus for synthesizing and displaying another image on an already displayed image.

<Prior art> In recent years, relatively small computers have been used to create various documents, as well as edit and print the created documents.
The so-called Desk Noburi Sourcing (hereinafter referred to as
DTP (abbreviated as DTP) has been attracting attention, and research and development is being conducted to expand the scope of DTP application and improve the quality of documents.

Specifically, it is possible to freely mix character strings that generally make up sentences, figures made up of vector data, and images made up of dot data such as photographs and illustrations. Research and development is being conducted to enable character strings to be placed only in areas other than illustrations.

In order to satisfy such requirements, for example,
Allocate the lowest screen to the main text area where text strings are displayed, and set and enter the non-text area where figures and images are displayed. A document creation method has been proposed in which the document is divided into regions and character strings are displayed only in the small regions.

Therefore, with this method, it is possible to create a wide variety of documents by arbitrarily setting the position, size, and number of non-text areas and displaying desired figures and images in each non-text area. can.

In addition, multi-window display is becoming common not only in D and TP, but also in systems that use computers to perform interactive data entry, editing, etc., and by increasing the number of windows that can be displayed simultaneously, a wide variety of Can handle processing.

<Problem to be solved by the invention> However, in the above-mentioned document creation method, the text area and the non-text area are clearly separated, and the relationship between the two areas is set exclusively. , editing within the text area and editing within the non-text area can be easily handled, but editing across both areas cannot be easily handled. In other words, if you try to edit in a state that extends beyond the non-text area, for example, re-divide the text area by resetting the non-text area wider, and then edit from the wider non-text area. Since editing must be performed to prevent the text from extending beyond the page, the entire process including resetting the non-text area to an appropriate size becomes extremely complicated. Furthermore, since the non-text area must be set wide without changing the position of the originally displayed figure or image, the work for this becomes complicated.

In addition, in multi-window display, if another window is displayed overlapping the underlying window, at least a portion of the underlying window is always hidden.
Since the CL is displayed, it is not possible to display other figures or the like while overlapping the display contents of the underlying window. However, although it is possible to display overlapping figures by processing the figures displayed in the underlying window, the work becomes complicated as it is necessary to obtain the final image to be displayed. At the same time, it is not possible to display other figures or the like in an overlapping state across windows.

In addition, in either case, it is not possible to easily handle adding or moving partial images, and the entire image in the non-text area or inside the window must be edited, making the work extremely complicated. turn into.

<Object of the invention> This invention was made in view of the above problems,
It is an object of the present invention to provide a novel composite display method and device that can easily achieve composition with a base image and is not subject to restrictions on the range of the base image.

Means for Solving the Problems> In order to achieve the above object, the composite display method of the present invention assigns transparent and opaque attributes to a window to be displayed on an image that is already displayed. In this method, when displaying a window to which an image is assigned, a logical OR process is performed with an image that has already been displayed to obtain a composite display with the base image.

However, if the image already displayed is composed of text data consisting of character strings and non-text data,
The text data may be displayed exclusively with respect to the non-text data.

To achieve the above object, the composite display device of the present invention includes an attribute assigning means for assigning transparent or opaque attributes to a window to be displayed on an already displayed image, and a window to which the transparent attribute is assigned. a detecting means for detecting that the display of the image has been instructed; a synthesizing means for obtaining a composite display with the base image by carrying out a logical OR process with the already displayed image; and displaying a window to which a transparent attribute has been added. and a control means for operating the synthesis means on the condition that the synthesis means is instructed.

However, if the image already displayed is composed of text data consisting of character strings and non-text data,
The text data may be displayed exclusively with respect to the non-text data.

Effect> With the above composite display method, when displaying another image by compositing it on top of the image that is already displayed, you can add transparency to the window that displays the other shapes, and use the transparent When displaying a window with attributes,
Since a composite display with the base image is obtained by performing a logical OR process with the already displayed image, the composite image can be easily obtained without requiring any processing on the base image.

Even if the base image exists only within a preset area, it is possible to obtain a composite image without considering the position, size, etc. of this area, simplifying the editing process for the base image. can be converted into

If the already displayed image is composed of text data consisting of character strings and non-text data, and the text data is displayed exclusively with respect to the non-text data, , it is possible to create high-quality documents by displaying body data in areas other than non-body data,
Furthermore, by displaying a window with a transparent attribute that overlaps any part of the created document, the desired image can be displayed in an overlapping manner over text data, non-text data, or both data. I can do it. Therefore, it is possible to easily edit a document in which text areas and non-text areas are clearly separated, and the position where the editing process is performed can also be easily changed, significantly improving the quality of the created document. be able to.

With the composite display device with the above configuration, when displaying a composite image on top of an already displayed image, the attribute assigning unit assigns a transparent attribute to the window displaying the other figure. In addition, the detection means detects that an instruction to display a window to which a transparent attribute is given is given, and when displaying a window to which a transparent attribute is given, the compositing means performs the following steps. Since a composite display with the base image is obtained by performing a logical OR process with the already displayed image, the composite image can be easily obtained without requiring any processing on the base image. and,
Even if the base image exists only within a preset area, a composite image can be obtained without considering the position, size, etc. of this area at all, and editing processing for the base image can also be simplified. .

If the already displayed image is composed of text data consisting of character strings and non-text data, and is displayed exclusively for the text data or non-text data, , it is possible to create high-quality documents by displaying body data in areas other than non-body data,
Furthermore, by displaying a window with a transparent attribute that overlaps any part of the created document, the desired image can be displayed in an overlapping manner over text data, non-text data, or both data. be able to. Therefore, it is possible to easily perform editing processing on a document in which text areas and non-text areas are clearly separated, and the position where editing processing is performed can be easily changed, thereby significantly simplifying the document editing work. .

<Example> Hereinafter, embodiments will be described in detail with reference to the accompanying drawings showing examples.

FIG. 1 is a flowchart showing an embodiment of the composite display method of the present invention, in which the base image is first
It is drawn in the window memory, and it is determined whether composite display is instructed in step ■. If composite display is instructed, a transparent attribute is given to the second window memory in step ■, and conversely, the composite display is If display is not instructed, an opaque attribute is given to the second window memory in step (2). After the processing in step (2) or step (2) is performed, a desired image is drawn in the second window memory in step (2), and it is determined again in step (2) whether or not composite display is instructed. Then, if composite display is instructed,
In step (2), a logical OR process is performed based on the contents of the first window memory and the contents of the second window memory, and in step (2), a display is performed based on the result of the logical sum process. On the other hand, if composite display is not instructed, the contents of the second window memory are overwritten on the contents of the first window memory in step (3),
In step (I), display is performed based on the overwriting processing result. After the processing in step ■ or step [phase] is performed, it is determined in step ■ whether or not there is another figure to be displayed. If it does not exist, the series of processing ends as it is, but if it does exist, the logical sum processing result obtained in step ■ or the overwriting processing result obtained in step [phase] is used in step A new base image is set at @, and the memory in which this base image is stored is set as a new first window memory, and the determination in step (2) is performed again.

Therefore, as shown in FIG. 2(A), the base image is
With the image being drawn in the window memory,
When the composite display of the image shown in B) is instructed, the second window containing the image shown in FIG.・Because it performs logical OR processing with the contents of memory,
As shown in FIG. 3C, a composite image can be obtained by combining both images, and this composite image can be visually displayed.

On the other hand, if the composite display of the images shown in FIG. Since the contents are overwritten and drawn, the same figure (D)
As shown in FIG. 2, an image in which a part of the base image is replaced with the image shown in FIG. 2B can be obtained, and this image can be visually displayed.

Also, the base image of the first window memory is shown in Figure 2 (E
) When updating partially as shown in (D)
), only the update area indicated by the dashed line in Figure (E) is transferred and overwritten, and as a result of the overwriting process, the image based on the contents of the second window memory is partially missing. Therefore, by transferring the contents of the second window memory again while performing logical sum processing (see (F) in the same figure), a composite image for the updated base image is obtained as shown in (G) in the same figure. be able to.

Figure 3 (A) shows a main page area where only character strings are hidden;
This document has a non-text area in which figures and images are displayed, and the text area is arranged in relation to the non-text area. Note that such areas are generally allocated in document creation devices. Of course, the location of each area,
The size, number, etc. vary depending on the document to be created.

Therefore, in a typical document creation device, editing for the text area and editing for the non-text area are completely separate processes, and editing across the text area and the non-text area is almost impossible.

However, in the composite display method of the present invention, it is possible to draw a desired image in a window with a transparent attribute without affecting the attributes of the text area and non-text area (see figure (B)). Since the document shown in Figure (A) is drawn for display while being subjected to logical sum processing, editing can be easily performed across both areas as shown in Figure (C). Furthermore, the movement process can be easily achieved by simply changing the display position of the image in FIG.

Furthermore, even if the entire area is allocated to the text area as shown in Figure 4 (A), a figure or image as shown in Figure 4 (B) cannot be drawn in a window with a transparent attribute. By performing logical sum processing and drawing for display, it is possible to easily obtain a document containing a mixture of character strings, figures, or images, as shown in FIG.

As is clear from the above explanation, in addition to allocating a window to each other image to be displayed on the base image,
Transparent or opaque attributes are assigned based on whether or not it is a composite display, and OR processing is performed only in the case of composite display, so by applying it to a document creation device, it is possible to create documents with an extremely high degree of freedom. , editing can be achieved.

Furthermore, if applied to multi-window display, editing processing that spans between windows can be easily accomplished.

<Embodiment 2> FIG. 5 is a block diagram showing an embodiment of the composite display device of the present invention, in which a plurality of window memories (11), (12), . . . (1n) each containing a desired image are drawn. )
, a drawing order setting unit (3) that sets the drawing order for each window memory, an attribute assigning unit (3) that assigns a transparent or opaque attribute to each window memory, and an image memory (4) for display. ), an overwriting section (5) that overwrites the contents of the window memory with the opaque attribute on the image memory (4), and the logical OR of the contents of the window memory with the transparent attribute. A logical sum processing unit (6) writes data into the image memory (4) while performing processing, a display unit (7) performs visual display based on the contents of the image memory (4), and instructs whether or not to perform a composite display. It has a control H (8) that controls the attribute assigning section (3) based on input data and selectively operates the overwriting section (5) or the OR processing section (6).

The attribute assigning section (3) assigns a transparent or opaque attribute to the background portion of the corresponding window eyelid memory based on control data from the control section (8).

The operation of the composite display device having the above configuration is as follows.

Drawing to each window memory may be performed in advance, or may be performed after displaying other window memories. The drawing order setting section (2) then sets the drawing order for the corresponding window.
This is done at any timing before or after drawing to memory.

Of course, this timing is before drawing is performed on the image memory (4).

When drawing is performed for each window memory, an instruction is given as to whether or not composite display is to be performed. Therefore, based on the instruction data, the attribute assigning unit (3) makes each window memory transparent. Or an opaque attribute is given.

In this state, drawing is performed on the image memory (4) based on the contents of each window memory, but the overwriting section (5) draws on the contents of the window memory that has been given the opaque attribute. On the other hand, the content of the window memory to which the transparent attribute is assigned is selected to be drawn by the OR processing unit (6). Therefore, overwriting drawing and composite drawing are selected for each window, and finally a desired image is drawn in the image memory (4) and visually displayed on the display unit (7).

Furthermore, when performing editing processing on the image obtained as described above, it is sufficient to assign a transparent attribute or an opaque attribute to the window according to the content of the editing processing.
Editing by composite display and editing by overwriting display can be easily handled.

Furthermore, even if editing that goes beyond the boundaries of the preceding window is required, it is only necessary to set a window that corresponds to the range that requires editing, which greatly simplifies the editing work.

As is clear from the above description, the composite display device of this embodiment can be applied to various devices such as a document creation device and a multi-window display device. Among these, when applied to document creation devices, conventional editing work was severely restricted due to the exclusive setting of text areas and non-text areas, making the work extremely complicated. However, since these constraints can be eliminated and the editing work can be accomplished extremely easily, not only can work efficiency be significantly improved, but also the quality of the created document can be significantly improved.

<Effects of the Invention> As described above, the first invention does not require any processing on the base image and can easily obtain a composite image, and can also be used when the base image exists only within a preset area. Even if there is, a composite image can be obtained without considering the position, size, etc. of this area, and the editing process for the base image can also be simplified, which is a unique effect.

The second invention makes it possible to easily perform editing processing on a document in which a text area and a non-text area are clearly separated, and also to easily change the position where editing processing is performed. It has the unique effect of significantly improving quality.

The third invention is capable of easily obtaining a composite image without requiring any processing on the base image, and even when the base image exists only within a preset area.
This has the unique effect of being able to obtain a composite image without considering the position, size, etc. of this area at all, and also simplifying the editing process for the base image.

The fourth invention makes it possible to easily perform editing processing on a document in which a text area and a non-text area are clearly separated, and also to easily change the position where editing processing is performed. It has the unique effect of significantly improving quality.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing an embodiment of the composite display method of the present invention, FIG. 2 is a schematic diagram illustrating the processing of the flowchart in FIG. 1, and FIGS. 3 and 4 are the flowcharts in FIG. 1, respectively. FIG. 5 is a block diagram showing an embodiment of the composite display device of the present invention. (3)...Attribute assignment section, (6)...Order processing section, (8).Control section

Claims (1)

[Claims] 1. Transparent or opaque attributes are assigned to a window to be displayed on an image that is already displayed, and when displaying a window to which a transparent attribute is assigned, an image that is already displayed A composite display method characterized by performing a logical OR process with an image to obtain a composite display with a base image. 2. The above patent claim in which the already displayed image is composed of text data consisting of character strings and non-text data, and the text data is displayed exclusively with respect to the non-text data. The synthetic display method according to item 1. 3. Attribute assigning means (3) for assigning transparent or opaque attributes to a window to be displayed on an already displayed image;
a detecting means (3) for detecting that the display of a window to which a transparent attribute has been given is instructed; and a synthesizing means (3) for performing a logical OR process on the already displayed image and obtaining a composite display with the base image. 6), and a compositing means (6) on the condition that display of a window with a transparent attribute is instructed.
A synthetic display device characterized in that it includes a control means (8) for operating. 4. The above patent claim in which the already displayed image is composed of text data consisting of character strings and non-text data, and the text data is displayed exclusively with respect to the non-text data. The synthetic display method according to item 3.