JP5028263B2 - Presentation display device, computer control method and program - Google Patents

Description

  The present invention relates to a presentation display device that displays a slide, a computer control method, and a program.

  In recent years, it has become common to give presentations by sequentially displaying slide images created by a computer on a screen in lectures, meetings, product introductions, and the like. Some presentations using conventional computer software can set animation effects on presentation elements on a slide in order to attract the attention of viewers or convey the presentation in an easy-to-understand manner.

  However, in the conventional technology, the movement of the presentation element is limited to the slide on which the presentation element is displayed, and the presentation element cannot be moved across a plurality of slides. Therefore, when there is a connection between the presentation element shown in the current slide and the presentation element shown in the next slide, the connection cannot be visually expressed.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a presentation display device, a computer control method, and a program capable of visually expressing a connection between presentation elements when a slide is switched and displayed. Is to provide.

  In order to solve the above-described problems, a presentation display device according to the present invention is a presentation display device that sequentially displays a first slide and a second slide that indicate a space or a plane in which at least one presentation element is arranged. A related element that searches for a presentation element related to the start point presentation element from presentation elements included in the second slide, using at least one presentation element included in the first slide as a start point presentation element. The presentation element searched by the search means and the related element search means as the end point presentation element, and the space or plane of the start point presentation element and the end point presentation element respectively. Interpolated slide generating means for generating an interpolated slide indicating a space or plane in which at least one interpolated presentation element corresponding to either the start point presentation element or the end point presentation element is arranged at an interpolation position formed by interpolating the position to be cut And means for displaying the generated interpolated slide when switching the display from the first slide to the second slide.

  Further, the control method of the computer according to the present invention (for example, a personal computer, a server computer, a game machine, a portable information terminal, etc., the same applies hereinafter) indicates a space or a plane in which at least one presentation element is arranged. A method for controlling a presentation display device that sequentially displays a first slide and a second slide, wherein at least one presentation element included in the first slide is included in the second slide as a starting presentation element. A related element search step for searching for a presentation element related to the start point presentation element, and the presentation element searched in the related element search step as an end point presentation element. A space in which at least one interpolated presentation element corresponding to the start point presentation element and the end point presentation element is arranged at an interpolation position obtained by interpolating the positions of the point presentation element and the end point presentation element in the space or plane, or An interpolation slide generation step for generating an interpolation slide showing a plane, and a step of displaying the generated interpolation slide when switching the display from the first slide to the second slide are characterized.

  The program according to the present invention is a program for causing a presentation display device that sequentially displays a first slide and a second slide indicating a space or a plane in which at least one presentation element is arranged, to function. Related element search means for searching for a presentation element related to the start point presentation element from among the presentation elements included in the second slide using at least one presentation element included in the first slide as a start point presentation element The position of the start point presentation element and the end point presentation element in the space or plane with the presentation element searched by the related element search means as the end point presentation element Interpolated slide generating means for generating an interpolated slide showing a space or plane in which at least one interpolated presentation element corresponding to the start point presentation element and the end point presentation element is arranged at an interpolation position formed by interpolation, and the first This is a program for causing a computer to function as means for displaying the generated interpolated slide when switching the display from the first slide to the second slide. This program may be stored in a CD-ROM (Compact Disk-Read Only Memory), DVD-ROM (Digital Versatile Disk-Read Only Memory), memory card, or any other computer-readable information storage medium.

  The presentation display device according to the present invention displays the first slide and the second slide in order. Each slide represents a space or plane in which at least one presentation element is placed. Various presentation elements such as characters, figures, graphs, mathematical expressions, and images (including moving images) are represented on the slide. Then, the presentation display device searches for a presentation element related to the start point presentation element from the presentation elements included in the second slide, using at least one presentation element included in the first slide as the start point presentation element. In the presentation display device, at least one interpolated presentation element is arranged at an interpolation position obtained by interpolating the positions of the start point presentation element and the end point presentation element in the space or plane with the searched presentation element as the end point presentation element. Generating an interpolated slide showing the rendered space or plane. For example, the shape, size, and color of the interpolated presentation element are determined in correspondence with either the start point presentation element or the end point presentation element. The presentation display device displays the generated interpolation slide when switching the display from the first slide to the second slide. The presentation display device may display the interpolation slide generated by updating the position of the interpolation presentation element at a predetermined time interval a plurality of times when switching the display from the first slide to the second slide. Good.

  According to the present invention, when the presentation display device switches and displays the first slide and the second slide, the relevance of the presentation elements related to each other is visually expressed by the interpolation slide. It is possible to give an easy-to-understand presentation.

  In one aspect of the present invention, means for inputting a character string to be displayed together with the presentation element, and storing the character string in the storage means in association with the presentation element to be displayed with the character string according to the input character string. The related element search means includes a character related to a character string stored in the previous storage means in association with the start presentation element from among the presentation elements included in the second slide. The presentation element whose column is stored in association with the previous term storage means is searched. As a result, it is possible to search for a related presentation element when the character strings stored in accordance with the character string displayed together with the presentation element are related to each other.

  By doing so, the presentation display device can provide an easy-to-understand presentation by showing the interrelationship of the presentation elements associated with the related character strings by the interpolation slide.

  Also, in one aspect of the present invention, the interpolated presentation element is selected by interpolation using an attribute value of the start presentation element and an attribute value corresponding to the attribute of the end presentation element. This is a presentation element whose attribute value is determined.

  In this way, when the presentation display device switches the display from the first slide to the second slide, it is possible to visually represent how the attributes (color and size) of both slides change.

  In one aspect of the present invention, the interpolated presentation element includes at least one value of an attribute of the start presentation element and a value corresponding to the one of the attributes of the end presentation element. The value of the one attribute is a presentation element determined by interpolation. The attribute is, for example, the color or size of the presentation element.

  In this way, when the presentation display device switches the display from the first slide to the second slide, it visually represents how the attributes (color and size) of the related presentation elements change in both slides. be able to.

  In the aspect of the invention, the interpolated presentation element includes a start point interpolated presentation element corresponding to the start point presentation element and an end point interpolated presentation element corresponding to the end point presentation element. Generates the interpolation slide by translucently combining the image of the interpolation presentation element for the start point and the image of the interpolation presentation element for the end point, and the interpolation presentation element for the start point has the interpolation position at the end point presentation. Transparency is increased as the position of the element is approached, and the interpolated presentation element for end point is made to decrease in transparency as the interpolated position approaches the position of the end point presentation element.

  In this way, when the presentation display device switches the display from the first slide to the second slide, the related presentation elements are displayed so that they gradually change, and the relevance is shown. It can be suitably expressed.

  In one aspect of the present invention, the position of the presentation element is represented by position coordinates in a three-dimensional space, and the interpolation slide generating means is set to the 3rd set for each of the first slide and the second slide. An interpolation slide is generated by a rendering process based on the viewpoint position and the line-of-sight direction obtained by interpolating the viewpoint position and the line-of-sight direction in the three-dimensional space, and the interpolated presentation element arranged in the three-dimensional space.

  By doing so, the viewpoint position and the line-of-sight direction used for generation of the first slide, the second slide, and the interpolation slide can be prevented from changing suddenly.

It is a figure which shows an example of the slide displayed by the presentation display apparatus which concerns on this invention. It is a figure which shows an example of an interpolation slide. It is a hardware block diagram of a presentation display apparatus. It is a functional block diagram of a presentation display device. It is a figure which shows an example of the data structure of slide data. It is a flowchart of the switching process in a presentation display apparatus. It is a flowchart of the display process of an interpolation slide. It is a figure explaining an example of the screen transition of a slide.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the drawings.

  FIG. 1 shows an example of a slide displayed by the presentation display device according to the present invention. In the present embodiment, each slide is an image showing a state in which a three-dimensional space in which presentation elements such as characters, figures, graphs, mathematical expressions, and images are arranged is viewed from a viewpoint position and a line-of-sight direction determined for each slide. Is generated as The user can make the slide the intended content by modifying the presentation elements arranged in the three-dimensional space or adding new presentation elements to the three-dimensional space. FIG. 1A shows the first slide, and FIG. 1B shows the second slide. Then, the presentation display device displays the first slide first and the second slide next.

  As shown in FIG. 1A, the first slide 100 is a slide showing a three-dimensional space in which four presentation elements, that is, text elements 102 and 104 and graphic elements 106 and 108 are arranged. As shown in FIG. 1B, the second slide 200 is a slide showing a three-dimensional space in which three presentation elements, that is, text elements 204 and 205 and a graphic element 208 are arranged. When the presentation display device receives an instruction to switch the slide display from the state in which the first slide 100 is displayed on the monitor or the screen, the display is switched to the second slide 200.

  In the presentation display device according to the present embodiment, the interpolated slide 150 shown in FIG. 2A is displayed while switching the display from the first slide 100 to the second slide 200. That is, in the present embodiment, the first slide 100, the interpolation slide 150, and the second slide 200 are displayed in this order.

  The first slide 100 and the second slide 200 are created based on input from the user. On the other hand, the interpolation slide 150 shown in FIG. 2A is a slide generated in real time by the presentation display device when the slide transitions.

  The interpolation slide 150 is a presentation element at a position in a virtual three-dimensional space that interpolates the position of each presentation element among the presentation elements included in the first slide 100 and the second slide 200. It is the slide which arranged.

  An interpolated slide 150 shown in FIG. 2 is a slide in which interpolated presentation elements obtained by interpolating mutually related presentation elements among the presentation elements of the first slide 100 and the second slide 200 are arranged. The related presentation elements are searched for as the character strings stored in the presentation elements match each other. Hereinafter, the character string is referred to as a search character string. The search character string is stored in the presentation element according to the display character string input as the character string displayed together with the presentation element.

  In the present embodiment, as the search character string, the same character string as the display character string is stored, but the search character string is not limited to this. The search character string may be a part of the display character string, or the stored search character string may be corrected thereafter. In the specific example shown in FIG. 2, the text element 104 and the text element 204 are determined to be related presentation elements because the search character string “Chapter 2” stored in accordance with the display character string matches. Is done. The graphic element 108 and the graphic element 208 are determined to be related presentation elements because the search character string “Japan” stored in accordance with the display character string matches.

  Then, a total of four interpolated presentation elements 154a, 154b, 158a, 158b are arranged at positions obtained by interpolating the positions of the presentation elements on the first slide 100 and the second slide 200. Among these, the interpolation presentation element 154a corresponds to the text element 104 which is one of the start point presentation elements. The interpolated presentation element 154b corresponds to the text element 204 that is the end point presentation element corresponding to the start point presentation element. The interpolated presentation element 158a corresponds to the graphic element 108 which is another one of the start point presentation elements. The interpolated presentation element 158b corresponds to the graphic element 208 that is the end point presentation element corresponding to the start point presentation element.

  The interpolated presentation elements 154a and 154b are displayed superimposed on the same position on the interpolated slide 150, but the transparency is set separately for each. In the figure, both presentation elements are shifted and displayed for easy understanding. The same applies to the interpolation presentation elements 158a and 158b.

  FIG. 2B shows the relationship among the graphic element 108, the interpolation presentation elements 158a and 158b, and the graphic element 208. As shown in FIG. 2B, the interpolated presentation elements 158a and 158b are arranged at positions obtained by interpolating the positions of the corresponding presentation elements on the first slide 100 and the second slide 200, that is, the graphic elements 108 and 208. Is done. The attribute value of each interpolated presentation element is obtained by interpolating the attribute values of the presentation elements of the first slide 100 and the second slide 200 (here, figure size, font size, etc.). .

  In order to realize the above processing, a configuration of the presentation display device according to the present embodiment will be described.

  FIG. 3 is a hardware configuration diagram of the presentation display apparatus according to the embodiment of the present invention. As shown in FIG. 3, the presentation display device 10 is a computer system including at least a processor 12, a medium reading device 13, a memory 14, an input / output interface 16 and a graphic interface 18 as a hardware configuration. Each unit is connected to be communicable with each other via the bus 20.

  The processor 12 controls each unit of the presentation display device 10 based on an operating system stored in a ROM or hard disk (not shown) or a program read from the memory 14.

  The memory 14 is used for work of the processor 12 while programs and data are written as necessary.

  The input / output interface 16 is connected to an input unit 30 including a keyboard, a mouse, and the like, and receives an operation input from a user.

  The graphic interface 18 includes a video memory, and transfers image data created in the video memory to the display 40.

  On the display 40, an image is drawn on the screen based on the transferred image data.

  The medium reader 13 receives a computer-readable information storage medium such as a CD-ROM or a DVD-ROM, and reads a program stored in the medium. The program read in this way is executed by the processor 12.

  FIG. 4 is a functional block diagram of the presentation display device 10. As shown in FIG. 4, the presentation display device 10 functionally includes an input unit 50, a control unit 52, a slide data storage unit 54, a related element search unit 56, an interpolation slide generation unit 58 and a display unit 60. Composed.

  For these functions, a presentation program stored in a computer-readable information storage medium is read into the presentation display device 10 which is a computer system using the medium reading device 13 and executed by the presentation display device 10. It is realized with. Here, the presentation program is supplied to the presentation display device 10 by the information storage medium. However, the presentation program may be downloaded to the presentation display device 10 from a remote location via a data communication network such as the Internet. Of course.

  The input unit 50 receives an operation input from the user. The input unit 50 is realized by input means such as a keyboard and a mouse connected to the presentation display device 10 via the input / output interface 16.

  For example, when a slide is created or edited by a user, the input unit 50 receives an input of a presentation element and a character string to be displayed together with the presentation element, or receives an instruction to switch a slide display from the user. As will be described later, in the presentation display device 10 according to the present embodiment, each slide is generated by three-dimensional computer graphics. For each slide, a two-dimensional or three-dimensional object is arranged as a presentation element in a virtual three-dimensional space using the input unit 50, and attributes (color, size, etc.) of the presentation element are designated. Is done. Furthermore, a character string to be displayed together with the presentation element is input using the input unit 50. This display character string may be arranged in the presentation element in the three-dimensional space or may be arranged outside thereof.

  Through the above operation, slide data of each slide is generated. The slide data is the type of each presentation element (triangular pyramid, cone, cylinder, cube, sphere, flat plate, etc.) arranged in the three-dimensional space, the coordinates of the arranged position, its attributes (color and size, etc.), its Includes character string data displayed with presentation elements, search character string data stored according to the displayed character string, and viewpoint data (viewpoint position and line-of-sight direction) used to draw the state of the three-dimensional space . Each slide is generated by a rendering process based on the slide data.

  The presentation element may have an attribute value corresponding to the type of presentation element. The types of presentation elements are, for example, text, various graphics, and the like. If the type of presentation element is text, the position, font size, font color, orientation, edge color, edge thickness, display character string position (vertical, horizontal), transparency, etc. May have as an attribute value. If the type of presentation element is a graphic, the presentation element has attributes such as position, size, orientation, color, edge color, edge thickness, display character string position (vertical, horizontal), and transparency. You may have it as a value. The graphic may further include different attributes such as, for example, the position of the vertex if it is a triangle, and the center point and radius if it is a circle.

  The control unit 52 controls each part of the presentation display device 10 and controls the timing of each process. The control unit 52 is realized by the processor 12, the memory 14, the operating system, and the like of the presentation display device 10.

  The slide data storage unit 54 stores slide data for drawing a slide. The slide data is generated based on a user operation as described above. In the present embodiment, the slide data includes at least the first slide 100 and the second slide 200.

  FIG. 5 shows an example of the data structure of slide data. As shown in FIG. 5, the slide data includes a data group indicating slides 1 to n (n is a natural number of 2 or more). Each slide includes data indicating one or a plurality of presentation elements (for example, E1 to E4 for the slide 1), and data indicating the viewpoint position and the line-of-sight direction. The data indicating the presentation element includes data indicating the type, position, attribute, display character string, and search character string of the presentation element. The slide data storage unit 54 that stores slide data is realized by the memory 14.

  The related element search unit 56 searches for a presentation element related to the start point presentation element from the presentation elements included in the second slide 200 using at least one presentation element included in the first slide 100 as a start point presentation element. To do. In the present embodiment, the related element search unit 56 uses the search character string stored in the start presentation element from the presentation elements included in the second slide to search for the search character string related to the search character string. Search for stored presentation elements. The search character string is stored in the presentation element according to the display character string displayed together with the presentation element.

  The related element search unit 56 is realized as follows using the hardware of the presentation display device 10. The processor 12 refers to the first slide data indicating the first slide 100 stored in the memory 14. Then, the processor 12 sets at least one start point presentation element from the presentation elements whose first slide data includes data such as its position, and obtains a search character string stored in the start point presentation element.

  Then, the processor 12 uses the acquired search character string as a search key, and the same among the search character strings stored in the presentation element in which the second slide data indicating the second slide 200 includes data such as its position. Search for a string. Here, the presence / absence of relevance of presentation elements is determined based on whether the character strings are the same, but the present invention is not limited to this. For example, depending on whether the search character strings stored in each of the start point presentation element and the end point presentation element partially match or whether each search character string corresponds to a pair set in advance as a related character string Whether or not there is a relationship between the two may be determined.

  Then, the processor 12 sets the presentation element whose search character string matches the start point presentation element as the end point presentation element. Then, the processor 12 stores the position, display character string, and attribute data of the start point presentation element in the memory 14 in association with the position, display character string, and attribute data of the corresponding end point presentation element. When a plurality of start point presentation elements are selected, the processor 12 repeats the above process for each start point presentation element. In this way, the processor 12 associates the position, display character string, and attribute data of the start point presentation element with the position, display character string, and attribute data of the corresponding end point presentation element for each of the start point presentation elements. 14 to store.

  The interpolated slide generating unit 58 creates a 3D space in which interpolated presentation elements corresponding to the start point presentation element and the end point presentation element are arranged at positions obtained by interpolating the positions of the start point presentation element and the end point presentation element in the 3D space. Generate the interpolation slide shown. The interpolation slide generation unit 58 includes an interpolation presentation element generation unit 58a that generates an interpolation presentation element. Then, the interpolation slide generation unit 58 performs predetermined image processing based on the interpolation presentation element generated by the interpolation presentation element generation unit 58a to create an interpolation slide. Hereinafter, processing in the interpolation presentation element generation unit 58a and the interpolation slide generation unit 58 will be described in detail.

  The interpolation presentation element generation unit 58a generates an interpolation presentation element corresponding to the start point presentation element and the end point presentation element. The interpolated presentation element generation unit 58a is realized as follows using the hardware of the presentation display device 10.

  The processor 12 generates an interpolated presentation element for the start point presentation element of the same type as the start point presentation element (examples are the interpolated presentation element 158a and the interpolated presentation element 154a shown in FIG. 2). Hereinafter, this interpolation presentation element is referred to as a starting point interpolation presentation element.

  The processor 12 also generates an interpolated presentation element for the end point presentation element of the same type as the end point presentation element (examples are the interpolated presentation element 158b and the interpolated presentation element 154b shown in FIG. 2). Hereinafter, this interpolation presentation element is referred to as an end point interpolation presentation element.

  Then, the position and attribute value of the generated start point interpolation presentation element and end point interpolation presentation element are obtained by interpolating the position and attribute value of the start point presentation element and the end point presentation element.

  The above interpolation may be calculated by the following linear interpolation, for example, when the switching start time from the first slide 100 to the second slide 100 is T1 and the switching end time is T2. That is, the processor 12 acquires the time T at which the interpolation slide is displayed in the switching process (T1 ≦ T ≦ T2), and calculates the interpolation coefficient z = (T−T1) / (T2−T1). Then, the processor 12 calculates and sets an interpolation position P common to the start point interpolation presentation element and the end point interpolation presentation element as P = P1 + z (P2−P1). Note that P1 is the position of the start point presentation element, and P2 is the position of the end point presentation element.

  Further, the attribute value of the starting point interpolation presentation element may be calculated as follows. The processor 12 searches for attribute values of types included in both of the attribute values of the start point presentation element and the end point presentation element. This search may be performed, for example, by searching for a variable whose variable name indicates the attribute value and the variable type. Then, the processor 12 calculates and sets the attribute value A of the starting point interpolation presentation element corresponding to the searched attribute as A = A1 + z (A2−A1). A1 is the attribute value of the start presentation element, and A2 is the attribute value of the end presentation element.

  Also, the processor 12 sets the attribute values of the start point interpolation presentation element that are not common to both the start point presentation element and the end point presentation element as the same value as the start point presentation element. Then, the processor 12 calculates and sets a display transparency t1 indicating transparency when the start point interpolation presentation element is displayed as t1 = z. The display transparency t1 takes a value of 0 ≦ t1 ≦ 1, and the transparency is 0% (opaque) when t1 = 0, and the transparency is 100% when t1 = 1. Here, it is assumed that the transparency approaches transparency as the value increases, and is completely transparent at 100%.

  As for the attribute value of the interpolation presentation element for end point, the attribute value common to the start point presentation element and the end point presentation element is set to the same value as the attribute value of the start point interpolation presentation element described above. Then, the processor 12 sets the attribute values of the end point interpolation presentation element that are not common to both the start point presentation element and the end point presentation element as the same value as the end point presentation element. Then, the processor 12 calculates and sets the display transparency t2 indicating the transparency when the end point interpolation presentation element is displayed as t2 = 1−z. The display transparency t2 takes a value of 0 ≦ t2 ≦ 1, and the transparency is 0% when t2 = 0 and the transparency is 100% when t2 = 1.

  Further, when there are a plurality of start point presentation elements and end point presentation elements, the processor 12 repeats the above processing for each combination.

  The interpolation slide creation unit includes a viewpoint position and a line-of-sight direction obtained by interpolating the viewpoint position and the line-of-sight direction set for the first slide and the second slide, and an interpolated presentation element arranged in a three-dimensional space, An interpolation slide is generated by a rendering process based on the above. The interpolation between the viewpoint position and the line-of-sight direction may be obtained by interpolating the viewpoint position and the line-of-sight direction set for the first slide and the second slide, respectively.

  For example, using the above-described interpolation coefficient z, the viewpoint position VP of the interpolation slide may be obtained as VP = VP1 + z (VP2-VP1), and the line-of-sight direction VD may be obtained as VD = VD1 + z (VD2-VD1). Note that VP1 and VD1 are values of the first slide viewpoint position and line-of-sight direction, and VP2 and VD2 are values of the second slide viewpoint position and line-of-sight direction. Further, the interpolation method is not limited to the above-described method. For example, spherical linear interpolation or other known interpolation methods may be used for interpolation in the line-of-sight direction. Further, other attribute values may be obtained by applying various known interpolation methods.

  Then, the processor 12 renders the three-dimensional space in which all the interpolation presentation elements are arranged based on the calculated viewpoint position and line-of-sight direction, and generates an interpolation slide. That is, an image showing a view of a virtual three-dimensional space in which interpolated presentation elements having calculated positions and attribute values are arranged as viewed from the calculated viewpoint position and line-of-sight direction is generated as an interpolation slide. . A known rendering method may be used for this rendering process.

  The display unit 60 outputs an image generated by image processing in the presentation display device 10. The display unit 60 is realized including the display 40. In addition to displaying the first slide 100 and the second slide 200, the display unit 60 displays the interpolated slide created by the interpolated slide creating unit 58 while switching the display of the first slide and the second slide.

  Note that one or a plurality of interpolated slides may be sequentially displayed when the display of the first slide 100 and the second slide 200 is switched after all the interpolated slides are generated in advance for each frame time.

  Details of the operation of the slide switching process in the presentation display device 10 according to the embodiment of the present invention will be described below.

  FIG. 6 shows a flowchart of processing when the slide is switched in the presentation display device 10 according to the embodiment of the present invention.

  As shown in FIG. 6, the presentation display device 10 reads slide data including at least a first slide and a second slide from the memory 14 (S101). The read slide data may be edited based on an input from the user.

  Then, the presentation display device 10 generates an image of the first slide by rendering processing based on the slide data of the first slide 100, and displays it (S102).

  When an operation indicating a slide switching instruction is input to the presentation display device 10 from the input unit 50 including operation means such as a keyboard and a mouse (S103), the display from the first slide 100 to the second slide 200 is performed. Is switched (S104). In the slide switching process of S104, when switching from the first slide 100 to the second slide 200, a plurality of interpolated slides are sequentially displayed. Details of the operation of the interpolation slide display process will be described later.

  When the slide switching process ends, an image of the second slide is generated by the rendering process based on the slide data of the second slide 200 and displayed (S105).

  FIG. 7 shows a flowchart of the interpolation slide display process (the process of S104 in FIG. 6).

  As shown in FIG. 7, the presentation display device 10 selects one presentation element from the first slide data indicating the first slide 100, and sets it as the start presentation element (S201).

  Then, the presentation display device 10 searches for the presentation element related to the start point presentation element and sets it as the end point presentation element (S202). As described above, when searching for a related presentation element, the search character string associated with the search character string stored in association with the start point presentation element corresponds to the display character string displayed together with the start point presentation element. This is performed by searching the attached presentation element from the second slide 200.

  Then, it is determined whether or not there is a presentation element that has not yet been selected as the starting presentation element on the first slide 100 (S203). If it is determined that it remains (S203; Y), it is used as the starting presentation. The process of S201 and S202 is repeated as an element. If it is determined in S203 that it does not remain (S203; N), an interpolated presentation element for interpolating both elements is generated based on the start point presentation element and the end point presentation that are associated by the above processing. (S204).

  Based on the elapsed time from the time when the slide switching process is started, the position and attribute value of the interpolation presentation element are calculated by the interpolation process (S205). Similarly, the viewpoint position and the line-of-sight direction related to the interpolation slide are calculated by interpolation processing (S206).

  Then, an interpolation slide is created by a rendering process based on the calculated viewpoint position and line-of-sight direction and the interpolation presentation elements arranged in the three-dimensional space (S207). The created interpolation slide is displayed and output on the display 40 via the graphic interface 18 (S208).

  Then, it is determined whether or not the elapsed time from the time of transition to the switching process has exceeded the time required for the transition of the slide, that is, the transition time (S209). If it is determined that the elapsed time has not exceeded (S209; N) Returning to step S205, the process is repeated. If it is determined in S209 that the number has been exceeded (S209; Y), the process is terminated.

  According to the presentation display device 10 according to the embodiment of the present invention described above, when the first slide 100 and the second slide 200 are switched and displayed, the first of the presentation elements included in the first slide is displayed. Those related to the presentation elements included in the two slides are searched, and their relevance is visually expressed by the interpolated slide showing the interpolated presentation elements. Therefore, according to the presentation apparatus 10, it is possible to perform a very easy-to-understand presentation.

  The present invention is not limited to the above embodiment.

  In the example of the screen transition of the slide used in FIG. 1, the start point presentation element and the end point presentation element are the same type of presentation element. It may be.

  FIG. 8 is a diagram illustrating an example of screen transition when the types of the start point presentation element and the end point presentation element are different. A slide 300 shown in FIG. 8A is a slide displayed first, and a slide 400 shown in FIG. 8B is a slide displayed later.

  As shown in FIG. 8A, a graphic element 302 in which a character string is displayed in a circle is arranged on the slide 300. As shown in FIG. 8B, a graphic element 402 in which the same character string as the graphic element 302 is displayed in a triangle is arranged on the slide 400. Also in this example, it is assumed that the display character string and the search character string are the same character string.

  Since the graphic element 302 and the graphic element 402 store the same search character string, the presentation display device 10 corresponds to the graphic element 302 and the graphic element 402 when switching the display from the slide 300 to the slide 400. Display an interpolated slide with interpolated presentation elements. An example of screen transition in the above-described slide switching will be described below.

  First, the presentation display device 10 displays the interpolation slide 1 in which the start point interpolation presentation element 352a and the end point interpolation presentation element 352b are arranged at the same position after the slide 300. Then, after the interpolation slide 1, the interpolation slide 2 in which the start point interpolation presentation element 354a and the end point interpolation presentation element 354b are arranged is displayed. Then, the slide 400 is displayed next to the interpolation slide 2, and the slide switching is finished.

  FIG. 8C shows the relationship between the start point presentation element and the generated interpolated presentation element and the end point presentation element in the above example. The arrow direction in the figure indicates the direction in which time advances. As shown in FIG. 8C, in the presentation display device 10, the transparency of the start point interpolation presentation element increases as it approaches the end point presentation element, and the transparency of the start point presentation element decreases as it approaches the end point presentation element. Set as follows. In FIG. 8C, a portion indicated by a broken line indicates that the transparency is high.

  In this way, even when the start point presentation element and the end point presentation element are different types of presentation elements, it can be displayed so as to gradually change from the start point presentation element to the end point presentation element.

  In the present embodiment, all presentation elements included in the first slide data are selected as start point presentation elements, but only some presentation elements may be selected as start point presentation elements.

  In the above embodiment, the case where there are two slides has been described for the sake of simplicity of explanation, but the number of slides is not limited to two, and may be three or more. In that case, an interpolated slide may be generated and displayed every time the slide display is switched for some or all of the slides.

  Furthermore, in the above embodiment, objects such as characters and figures are arranged as presentation elements in a virtual three-dimensional space, and an image showing this space is generated as a slide. However, objects such as characters and figures are presented on a two-dimensional plane. The present invention can also be applied in the same manner when the image is arranged as an element and an image showing this plane is generated as a slide.

Claims (8)

A presentation display device that sequentially displays a first slide and a second slide showing a space or a plane in which at least one presentation element is arranged,
Related element search means for searching for a presentation element related to the start point presentation element from among the presentation elements included in the second slide, using at least one presentation element included in the first slide as a start point presentation element; ,
Corresponding to the start point presentation element at an interpolation position obtained by interpolating the positions of the start point presentation element and the end point presentation element in the space or plane, with the presentation element searched by the related element search means as the end point presentation element Interpolating slide generating means for generating an interpolating slide indicating a space or a plane in which the interpolating presentation element for start point and the interpolating presentation element for end point corresponding to the end point presentation element are arranged;
Means for displaying the generated interpolated slide when switching the display from the first slide to the second slide;
A presentation display device comprising: The presentation display device according to claim 1,
Means for inputting a character string to be displayed together with the presentation element;
Means for storing a character string in a storage means in association with a presentation element to be displayed together with the character string in accordance with the input character string;
The related element search means associates a character string associated with the character string stored in the storage means in association with the start point presentation element from the presentation elements included in the second slide. A presentation display device for searching for stored presentation elements. The presentation display device according to claim 1 or 2,
The interpolated presentation element for start point and the interpolated presentation element for end point are any of the interpolation calculation using the attribute value of the start point presentation element and the attribute value corresponding to the attribute of the end point presentation element. A presentation display device characterized by being a presentation element whose attribute value is determined. The presentation display device according to claim 3,
The start-point interpolation presentation element and the end-point interpolation presentation element include at least one value of an attribute of the start-point presentation element and a value corresponding to the one of the attributes of the end-point presentation element. A presentation display device characterized in that the value of the one attribute is a presentation element determined by interpolation. The presentation display device according to any one of claims 1 to 4 ,
Before SL interpolation sliding generating means, and an image of the image and the end point for presentation element of the start point for interpolation presentation elements by translucent blending, and generates the interpolation slide,
The image of the start point interpolated presentation element is made to increase in transparency as the interpolated position approaches the position of the end point presentation element,
The presentation display device characterized in that the transparency of the end point interpolation presentation element image decreases as the interpolation position approaches the position of the end point presentation element. The presentation display device according to any one of claims 1 to 5,
The position of the presentation element is represented by position coordinates in a three-dimensional space,
The interpolated slide generating means includes a viewpoint position and a line-of-sight direction obtained by interpolating a viewpoint position and a line-of-sight direction of the three-dimensional space set for the first slide and the second slide, respectively, on the three-dimensional space. The presentation display device, wherein the interpolation slide is generated by performing rendering processing based on the arranged interpolated presentation element for start point and interpolated presentation element for end point . A computer control method for sequentially displaying a first slide and a second slide, each of which represents a space or plane in which at least one presentation element is arranged,
A related element search step of searching for a presentation element related to the start point presentation element from presentation elements included in the second slide, with at least one presentation element included in the first slide as a start point presentation element; ,
Corresponding to the start point presentation element at an interpolation position formed by interpolating the positions of the start point presentation element and the end point presentation element in the space or plane with the presentation element searched in the related element search step as the end point presentation element An interpolation slide generation step for generating an interpolation slide indicating a space or a plane in which the interpolation presentation element for the start point and the interpolation presentation element for the end point corresponding to the end point presentation element are arranged;
Displaying the generated interpolated slide when switching the display from the first slide to the second slide;
A computer control method comprising: A program for causing a computer to function as a presentation display device that sequentially displays a first slide and a second slide showing a space or a plane in which at least one presentation element is arranged,
Related element search means for searching for a presentation element related to the start point presentation element from among the presentation elements included in the second slide, using at least one presentation element included in the first slide as a start point presentation element;
Corresponding to the start point presentation element at an interpolation position obtained by interpolating the positions of the start point presentation element and the end point presentation element in the space or plane, with the presentation element searched by the related element search means as the end point presentation element Interpolating slide generating means for generating an interpolating slide indicating a space or a plane in which the interpolating presentation element for starting point and the interpolating presentation element for end point corresponding to the end point presentation element are arranged, and
Means for displaying the generated interpolated slide when switching the display from the first slide to the second slide;
As a program to make the computer function as.

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