JP2007094902A - Three-dimensional image display device, method, and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a three-dimensional image display device, a three-dimensional image display method, and a three-dimensional image display program capable of acquiring a configuration of the whole of a three-dimensional image as a display object and improving visibility of relevant information associated with the three-dimensional image. <P>SOLUTION: For displaying the three-dimensional image on a display 13 and displaying the relevant information associated with the three-dimensional image in the previously decided position in the previously decided direction in reference to the display position of the three-dimensional image, three-dimensional image information showing the three-dimensional image is previously stored in a hard disk 28, while the relevant information is associated with positional information showing the position and directional information showing the direction to be stored previously in the hard disk 28. A CPU 22 detects the relevant information, which is directed to the front side substantially when the three-dimensional image is displayed, based on the directional information, and performs control for displaying the detected relevant information in the position shown by the positional information along with the three-dimensional image. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a three-dimensional image display device, a three-dimensional image display method, and a three-dimensional image display program. More specifically, the three-dimensional image is displayed and related information related to the three-dimensional image is displayed as the three-dimensional image. The present invention relates to a three-dimensional image display device, a three-dimensional image display method, and a three-dimensional image display program for displaying a predetermined direction at a predetermined position on the basis of the display position.

  In recent years, the efficiency of business using IT (Information Technology), high added value, and improvement of transparency are progressing in the industry as a whole. For example, in the automobile industry, the design and examination that was previously conducted in experiments with small models and full-scale models, etc., are performed on a computer, thereby reducing development time, reducing costs, and improving quality. Yes. Against this background, the spread of three-dimensional CAD (Computer Aided Design), which has been developed in recent years, plays a major role.

  By designing and developing with 3D CAD, detailed shapes that could not be transmitted with conventional 2D drawings can be transmitted to the manufacturing side such as factories and sites. In addition, it is possible to deal in advance with problems during manufacture and use that could not be considered in the past, and it is possible to prevent rework due to manufacturing troubles and troubles after delivery. For this reason, as a drawing for transmitting design information, a transition from a two-dimensional drawing to a three-dimensional drawing (three-dimensional model) is progressing. For example, the Japan Automobile Manufacturers Association has created “JAMA / JAPIA 3D Drawing Guidelines V1.0” and proposed to ISO (International Organization for Standardization) aiming at international standardization of 3D drawings.

  Thus, in the past, design and the like were performed using a two-dimensional drawing such as a plan view, a cross-sectional view, and an elevation view. However, when this is changed to a three-dimensional model, detailed shape data is converted into a computer-readable format. It can be transmitted to the manufacturing process, and the efficiency of the manufacturing process using an NC (Numerical Control) machine can be improved.

  However, in many cases, the three-dimensional model does not directly describe dimensions, manufacturing annotations, and the like described in the two-dimensional drawing. For this reason, for example, if a dimension is obtained using a three-dimensional model, the dimension is displayed by a dimension measurement tool such as a three-dimensional CAD or a three-dimensional data viewer.

  However, such work is more complicated than the conventional list of notations in a two-dimensional drawing, and the work efficiency is impaired. In addition, if the dimensions are expressed as they are on the three-dimensional display, all dimensions and annotations such as a plan view, a cross-sectional view, and an elevation view in the two-dimensional drawing are indicated, and a large number of dimensions are displayed at a time. Therefore, the display is extremely difficult to see and is not practical.

  In order to solve this problem, a three-dimensional image is projected in two dimensions. However, with this method, the goodness of the three-dimensional model that can grasp the three-dimensional shape is not utilized.

  As a technique that can be applied to solve the above problems, Patent Document 1 discloses a region of interest in a three-dimensional space in a three-dimensional information display system in order to exclude information objects that are unnecessary for a user from the observation target. A technique for projecting and displaying a tool on a reference plane having a fixed positional relationship with respect to each of the predetermined planes on one or a plurality of predetermined planes of the region of interest is disclosed. Has been.

By applying this technology to a form in which a 3D image is displayed together with dimensions, annotations, etc., and by setting a region of interest in order to limit the display target region, the display target can be narrowed down. Can be improved.
JP 2000-11209 A

  However, since the technique disclosed in Patent Document 1 is limited to the target region set by the display target, there is a problem in that the shape of the entire three-dimensional image cannot be grasped even with this technique. there were.

  The present invention has been made to solve the above-described problems, and can grasp the shape of the entire three-dimensional image to be displayed, and can improve the visibility of related information related to the three-dimensional image. It is an object to provide a three-dimensional image display device, a three-dimensional image display method, and a three-dimensional image display program.

  In order to achieve the above object, the three-dimensional image display device according to claim 1 displays a three-dimensional image and predetermines related information related to the three-dimensional image with reference to a display position of the three-dimensional image. A three-dimensional image display device for displaying a predetermined position at a predetermined position, wherein image information indicating the three-dimensional image is stored in advance, and the related information includes position information indicating the position and the position information A storage unit that is stored in advance in association with direction information indicating a direction; a detection unit that detects, based on the direction information; the detection unit that detects the related information facing substantially in front while the three-dimensional image is displayed. Display means for displaying the related information together with the three-dimensional image at a position indicated by the position information.

  The three-dimensional image display device according to claim 1 displays a three-dimensional image, and related information related to the three-dimensional image is predetermined at a predetermined position on the basis of a display position of the three-dimensional image. The information is displayed in advance by the storage means, and the related information is stored in the position information indicating the position and the direction information indicating the direction. Associated and stored in advance. The storage means includes a RAM (Random Access Memory), an EEPROM (Electrically Erasable and Programmable Read Only Memory), a semiconductor storage element such as a flash EEPROM (Flash EEPROM), a smart media (SmartMedia (registered trademark)), a flexible A portable recording medium such as a disk, a fixed recording medium such as a hard disk, or an external storage device provided in a server computer connected to a network is included.

  Here, in the present invention, the detection unit detects the related information facing substantially front in a state where the three-dimensional image is displayed based on the direction information, and the detected related information is indicated by the position information. The position is displayed together with the three-dimensional image by the display means. The display means includes a display device such as a liquid crystal display device, a plasma display device, an organic EL display device, or a CRT display device.

  That is, as a general method for displaying a three-dimensional image, there is a case where the three-dimensional image is displayed while changing the viewpoint. For example, if the 3D image is rotated around the center of gravity of the 3D image, the 3D image can be viewed from any angle. At this time, when related information such as dimensions and annotations is displayed, you can refer only to those that are roughly facing the front, those that are facing diagonally, and those that are facing the opposite direction. Is difficult to refer to and simply makes it difficult to see the displayed content.

  By paying attention to this point, in the present invention, only the relevant information facing substantially the front in the state of displaying the three-dimensional image is set as the display target, thereby grasping the shape of the entire three-dimensional image to be displayed. It is possible to improve the visibility of related information related to the three-dimensional image.

  Thus, according to the three-dimensional image display device according to claim 1, the three-dimensional image is displayed, and the related information related to the three-dimensional image is predetermined based on the display position of the three-dimensional image. In displaying the position so as to face a predetermined direction, the image information indicating the three-dimensional image is stored in advance, and the related information is associated with the position information indicating the position and the direction information indicating the direction in advance. The related information which is stored in front and is substantially facing forward in a state where the three-dimensional image is displayed is detected based on the direction information, and the detected related information is located at a position indicated by the position information together with the three-dimensional image. Since it is displaying, the shape of the whole 3D image to be displayed can be grasped, and the visibility of related information related to the 3D image can be improved.

  In the present invention, as in the invention described in claim 2, the related information may be at least one of annotation information indicating an annotation related to the three-dimensional image and dimension information indicating a dimension of the three-dimensional image. Thereby, the visibility with respect to at least one of an annotation and a dimension can be improved.

  Further, as in the invention according to claim 3, the present invention is obtained by projecting the direction of the line of sight when displaying the three-dimensional image (the three-dimensional image is projected onto a two-dimensional plane corresponding to the display surface). The image processing apparatus further includes input means for inputting line-of-sight direction information indicating a normal direction of the image (normal direction of the projection plane), and the detection means is a normal line indicating the normal direction of the drawing surface on which the related information is drawn. Direction information is derived based on the direction information, and an angle between the direction indicated by the line-of-sight direction information input by the input unit and the direction indicated by the derived normal direction information is equal to or less than a predetermined angle. It is good also as what detects the relevant information which faces the said substantially front by detecting relevant information. Thereby, the relevant information can be easily detected. Note that the input by the input means includes input from an external device via a communication line such as a local area network, the Internet, or an intranet, in addition to input via an input device such as a keyboard or a pointing device. .

  In particular, the input means of the present invention may further input the predetermined angle as in the fourth aspect of the present invention. Thereby, the display range of related information can be set.

  Furthermore, the present invention provides a selection instruction input means for inputting a selection instruction of a drawing surface to be displayed when there are a plurality of drawing surfaces of the related information, as in the invention described in claim 5, and the selection An exclusion unit that excludes from the display target related information other than the drawing surface indicated by the selection instruction input by the instruction input unit may be further provided. Thereby, when there are a plurality of related information drawing planes, it is possible to prevent a decrease in the visibility of the related information due to overlapping display of the related information.

  On the other hand, in order to achieve the above object, the three-dimensional image display method according to claim 6 displays a three-dimensional image and related information related to the three-dimensional image with reference to a display position of the three-dimensional image. A three-dimensional image display method for displaying a predetermined position in a predetermined direction so that the image information indicating the three-dimensional image is stored in advance, and the related information is position information indicating the position. In addition, the information is stored in advance in association with the direction information indicating the direction, the related information facing substantially front in a state where the three-dimensional image is displayed is detected based on the direction information, and the detected related information is detected in the position. It is displayed together with the three-dimensional image at a position indicated by information.

  Therefore, according to the three-dimensional image display method according to the sixth aspect, since it operates in the same manner as the first aspect, the shape of the entire three-dimensional image to be displayed is the same as the first aspect. It can be grasped and the visibility to related information related to the three-dimensional image can be improved.

  According to the sixth aspect of the present invention, as in the seventh aspect of the present invention, the related information includes at least one of annotation information indicating an annotation related to the three-dimensional image and dimensional information indicating a dimension of the three-dimensional image. It is good. Thereby, the visibility with respect to at least one of an annotation and a dimension can be improved.

  Further, in the invention according to claim 6 or 7, as in the invention according to claim 8, the direction of the line of sight when displaying the three-dimensional image (the two-dimensional image corresponding to the display surface 2). The visual line direction information indicating the normal direction (normal direction of the projection plane) of the image obtained by projecting on the two-dimensional plane is input and the normal line indicating the normal direction of the drawing plane on which the related information is drawn Direction information is derived based on the direction information, and the abbreviation is obtained by detecting related information in which an angle between a direction indicated by the line-of-sight direction information and a direction indicated by the normal direction information is equal to or less than a predetermined angle. It is good also as what detects the relevant information which faces the front. Thereby, the relevant information can be easily detected.

  On the other hand, in order to achieve the above object, the three-dimensional image display program according to claim 9 displays a three-dimensional image and related information related to the three-dimensional image with reference to a display position of the three-dimensional image. A three-dimensional image display program for displaying a predetermined position at a predetermined position so as to face a predetermined direction, wherein the related information facing substantially in front of the three-dimensional image is displayed as direction information indicating the direction. And a display step of displaying the related information detected by the detection step together with the three-dimensional image at a position indicated by the position information indicating the position.

  Therefore, according to the three-dimensional image display program according to the ninth aspect, the computer can be caused to act similarly to the first aspect of the invention. The shape of the entire three-dimensional image can be grasped, and the visibility of related information related to the three-dimensional image can be improved.

  According to the ninth aspect of the present invention, as in the tenth aspect of the present invention, the related information includes at least one of annotation information indicating an annotation related to the three-dimensional image and dimensional information indicating a dimension of the three-dimensional image. It is good. Thereby, the visibility with respect to at least one of an annotation and a dimension can be improved.

  Further, in the invention according to claim 9 or claim 10, as in the invention according to claim 11, the direction of the line of sight when displaying the three-dimensional image (2 corresponding to the display surface). An input step for inputting line-of-sight direction information indicating the normal direction of the image obtained by projecting onto the two-dimensional plane (the normal direction of the projection plane), and the normal direction of the drawing plane on which the related information is drawn A derivation step for deriving normal direction information based on the direction information, and the detection step is derived by the direction indicated by the line-of-sight direction information input by the input step and the derivation step. The related information facing the substantially front may be detected by detecting related information in which an angle between the direction indicated by the normal direction information is a predetermined angle or less. Thereby, the relevant information can be easily detected.

  According to the present invention, a three-dimensional image is displayed and related information related to the three-dimensional image is displayed in a predetermined direction with a predetermined position on the basis of the display position of the three-dimensional image. In doing so, image information indicating the three-dimensional image is stored in advance, and the related information is stored in advance in association with position information indicating the position and direction information indicating the direction, and the three-dimensional image is displayed. The related information facing substantially front in the state is detected based on the direction information, and the detected related information is displayed at the position indicated by the position information together with the three-dimensional image. The effect that the shape of the whole image can be grasped and the visibility with respect to related information related to the three-dimensional image can be improved is obtained.

  The best mode for carrying out the present invention will be described below in detail with reference to the drawings.

  First, the configuration of a three-dimensional image display device 10 to which the present invention is applied will be described with reference to FIGS.

  As shown in FIG. 1, a three-dimensional image display apparatus 10 according to the present embodiment includes a control unit 12 that controls the overall operation of the apparatus, a keyboard 14 that is used for inputting various information and the like from a user, The mouse 16 includes a display 18 that displays processing results, various menu screens, messages, and the like by the apparatus. That is, the three-dimensional image display device 10 according to the present embodiment is configured by a commercially available (general purpose) personal computer.

  Next, with reference to FIG. 2, the configuration of the main part of the electrical system of the three-dimensional image display apparatus 10 according to the present embodiment will be described.

  As shown in the figure, the three-dimensional image display device 10 includes a CPU (central processing unit) 22 that controls the operation of the entire three-dimensional image display device 10, and a RAM 24 that is used as a work area when the CPU 22 executes various programs. A ROM 26 in which various control programs, various parameters, and the like are stored in advance; a hard disk 28 used for storing various types of information; the above-described keyboard 14, mouse 16, and display 18, and an externally connected device; An external interface 30 for exchanging various types of information is electrically connected to each other via a system bus BUS. A printer 50 (not shown in FIG. 1) is connected to the external interface 30.

  Therefore, the CPU 22 accesses the RAM 24, ROM 26 and hard disk 28, acquires various information via the keyboard 14 and mouse 16, displays various information on the display 18, and prints various information using the printer 50 via the external interface 30. , Respectively.

  FIG. 3 schematically shows main storage contents of the hard disk 28 provided in the three-dimensional image display device 10. As shown in the figure, the hard disk 28 is provided with a database area DT for storing various databases and a program area PG for storing programs for performing various processes.

  The database area DT includes three types of databases: a three-dimensional image database DT1, an annotation database DT2, and a dimension database DT3.

  The three-dimensional image database DT1 according to the present embodiment includes three-dimensional coordinate data (hereinafter referred to as “three-dimensional image information”) indicating the shape of a three-dimensional image to be displayed, information defining a surface (which point and Information indicating which points are connected), information defining a solid (for example, information indicating the center and radius in the case of a sphere), and the like are stored. Since the 3D image information and the like are known in the past, further explanation here is omitted.

  On the other hand, the annotation database DT2 according to the present embodiment is information (hereinafter referred to as “annotation data”) about annotations added in advance to the 3D image indicated by the 3D image information stored in the 3D image database DT1. Is stored for each corresponding three-dimensional image.

  FIG. 4 schematically shows the data structure of the annotation data according to the present embodiment. As shown in FIG. 6 and FIG. 6, the annotation data according to the present embodiment includes the start point coordinates indicating the position of the drawing start point of the corresponding annotation, the drawing direction vector indicating the drawing direction, and the characters constituting the annotation. Each information of the character upper direction vector indicating the direction, the character information indicating the character (character string) constituting the annotation, the character font indicating the font pattern of the character, and the character size indicating the size of the character are stored for each annotation. It is configured as a thing.

  On the other hand, the dimension database DT3 according to the present embodiment is information on dimensions (hereinafter referred to as “dimension data”) added in advance to the three-dimensional image indicated by the three-dimensional image information stored in the three-dimensional image database DT1. Is stored for each corresponding three-dimensional image.

  FIG. 5 schematically shows the data structure of the dimension data according to the present embodiment. As shown in FIG. 7 and FIG. 7, the dimension data according to the present embodiment is the dimension connecting the two auxiliary lines 1 and 2 that indicate the part that is the target of dimension notation, and the auxiliary lines. Lines and dimensions are divided into three types: auxiliary line 1 and auxiliary line 2 and dimension line, each information of the start point coordinates indicating the position of the drawing start point and the end point coordinates indicating the position of the drawing end point, The dimension includes dimension information (numerical data) indicating a dimension, a numerical expression indicating a numerical format of the dimension, a character font indicating a font pattern of a character (character string) indicating the dimension, and a character size indicating the size of the character. Each piece of information is configured to be stored for each dimension.

  Note that information indicating each coordinate in the annotation data and the dimension data is a coordinate value based on the display position of the corresponding three-dimensional image.

  By the way, the three-dimensional image display apparatus 10 according to the present embodiment displays a three-dimensional image in a two-dimensionally projected state on the display 18 as shown in FIG. 8 as an example, and corresponds to the three-dimensional image. The annotations and dimensions added are displayed. At this time, instead of displaying all the annotations and dimensions, the direction of the line of sight when displaying the three-dimensional image (the method of the image obtained by projecting the three-dimensional image onto the two-dimensional plane corresponding to the display surface) The angle X between the line-of-sight vector v indicating the line direction (normal direction of the projection plane) and the normal vector n indicating the normal direction of the plane (drawing plane) on which the annotations and dimensions are drawn is set in advance. Only those with an angle α or less are displayed.

  Next, the operation of the 3D image display apparatus 10 according to the present embodiment will be described.

  First, with reference to FIG. 9, the operation of the three-dimensional image display device 10 when displaying annotations and dimensions will be described. Note that FIG. 9 illustrates the annotation / dimension executed by the CPU 22 of the three-dimensional image display device 10 when the user inputs an instruction to display the annotation and the dimension by operating the keyboard 14, the mouse 16, and the like. 4 is a flowchart showing a flow of processing of a display processing program, and the program is stored in advance in a program area PG of the hard disk. Here, a case where a three-dimensional image to be displayed (hereinafter referred to as a “display target image”) is designated by the user and displayed on the display 18 in order to avoid complications will be described. Here, a case where there are a plurality of annotation data and dimension data corresponding to the display target image will be described.

  First, in step 100 in the figure, the line-of-sight vector v and the angle α are acquired. In the annotation / dimension display processing program according to the present embodiment, the user can obtain the line-of-sight vector v by rotating the three-dimensional image displayed on the display 18 around the center of gravity point. This is done by obtaining the normal direction of the three-dimensional image displayed at this time (actually the projected image projected on the two-dimensional plane) as the line-of-sight vector v. However, the present invention is not limited to this, and information indicating the line-of-sight vector v may be directly input via the keyboard 14. In the annotation / dimension display processing program according to the present embodiment, the acquisition of the angle α is performed by directly inputting information indicating the angle α through the keyboard 14, but the present invention is not limited to this. Needless to say.

  In the next step 102, for any one of the annotation data and the dimension data corresponding to the display target image (hereinafter referred to as “processing target data”), the plane on which the corresponding annotation is drawn (hereinafter referred to as “annotation drawing plane”). The normal vector n of a plane on which dimensions are drawn (hereinafter referred to as “dimension drawing surface”. See also FIG. 7) is derived.

  Note that the normal vector n when the processing target data is annotation data can be derived by calculating the outer product of the drawing direction vector and the character upward vector of the annotation data. In addition, the normal vector n in the case where the processing target data is dimension data is the dimension line vector from the start point coordinate to the end point coordinate of the dimension line of the dimension data and the end point from the start point coordinate of the auxiliary line 1 or the auxiliary line 2 It can be derived by calculating the outer product with the auxiliary line vector leading to the coordinates.

  In the next step 104, an angle X between the line-of-sight vector v acquired in step 100 and the normal vector n derived by the process in step 102 is calculated by the following equation (1).

  In the next step 106, it is determined whether or not the angle X is equal to or smaller than the angle α. If the determination is affirmative, the process proceeds to step 108, and the annotation or dimension indicated by the processing target data is determined based on the processing target data. The displayed position and state are displayed on the display 18, and then the process proceeds to step 110. If the determination at step 106 is negative, the process proceeds to step 110 without executing the process at step 108.

  In step 110, it is determined whether or not the processing in steps 102 to 108 has been completed for all the annotation data and dimension data corresponding to the display target image. If the determination is negative, the processing returns to step 102. When the determination is affirmative, the annotation / dimension display processing program is terminated. Note that when the processes in steps 102 to 110 are repeatedly executed, the annotation data or the dimension data that has not been processed until then is set as the processing target data.

  By executing the above annotation / dimension display processing program, as shown in FIG. 8 as an example, the annotations and dimensions attached to the three-dimensional image together with the three-dimensional image are displayed only if they are substantially facing the front. Will be.

  By the way, when annotations and dimensions displayed on a plurality of drawing planes are displayed by the annotation / dimension display processing program, annotations and dimensions displayed on different drawing planes are displayed in an overlapping manner, making it difficult to see. May end up. For this reason, the 3D image display apparatus 10 according to the present embodiment has an annotation / dimension display switching function for displaying only a part of the drawing surface.

  Next, with reference to FIG. 10, the operation of the three-dimensional image display device 10 when executing the annotation / size display switching function will be described. FIG. 10 shows a three-dimensional image when the user inputs an instruction to execute the annotation / dimension display switching function by operating the keyboard 14 or mouse 16 after the annotation / dimension display processing program is executed. 4 is a flowchart showing a flow of processing of an annotation / size display switching processing program executed by the CPU 22 of the display device 10, and the program is also stored in the program area PG of the hard disk 28 in advance.

  First, in step 200 in the figure, information indicating a range of a distance between a predetermined viewpoint (here, the center position of the display surface of the display 18) and a drawing surface of annotations and dimensions to be displayed is acquired. . In the annotation / dimension display switching processing program according to the present embodiment, acquisition of information indicating the range of the distance is displayed on the display 18 as an example as shown in FIG. The range designation arrows Y1 and Y2 in the slider are acquired by moving with the mouse 16, but the present invention is not limited to this. For example, the coordinate information indicating the position range of the drawing surface to be displayed is input to the user. It can also be set as the form acquired by this.

  In the next step 202, with respect to any one of the annotation and dimension drawing surfaces displayed by the annotation / dimension display processing program (hereinafter referred to as “processing object drawing surface”), the processing object drawing surface and the above-described drawing surface. The distance D to the viewpoint is calculated, and in the next step 204, it is determined whether or not the distance D is within the distance range indicated by the information acquired by the processing of step 200, and a negative determination is made. If YES in step 206, the annotation and dimension of the processing target drawing surface displayed on the display 18 are erased, and then the processing proceeds to step 208. If the determination in step 204 is affirmative, the process proceeds to step 208 without executing the process in step 206.

  In Step 208, it is determined whether or not the processing of Step 202 to Step 206 has been completed for all drawing surfaces whose angle X is equal to or smaller than the angle α. If the determination is negative, the processing returns to Step 202. When the determination is affirmative, the annotation / dimension display switching processing program is terminated. Note that when the processes in steps 202 to 208 are repeatedly executed, a drawing surface that has not been processed until then is set as a processing target drawing surface.

  The image displayed by executing the annotation / dimension display processing program or the image whose display state is switched by executing the annotation / dimension display switching processing program can be printed by the printer 50.

  As described above in detail, in the present embodiment, a three-dimensional image is displayed, and related information related to the three-dimensional image is determined in advance at a predetermined position on the basis of the display position of the three-dimensional image. When displaying the image so as to face the specified direction, image information indicating the three-dimensional image (here, three-dimensional image information) is stored in advance, and the related information is displayed as position information indicating the position (here, start point coordinates). And each information of the end point coordinates) and direction information indicating the direction (here, each information of a drawing direction vector, a character upward direction vector, a dimension line vector, and an auxiliary line vector) are stored in advance, and the three-dimensional Based on the direction information, the related information facing substantially in front with an image displayed is detected, and the detected related information is detected at the position indicated by the position information. Since the displayed together with, it is possible to improve the visibility of the related information is three-dimensional image overall shape to be displayed can be grasped, and related to the 3-dimensional image.

  In the present embodiment, since the related information is annotation information indicating an annotation related to the three-dimensional image and dimensional information indicating a dimension of the three-dimensional image, visibility of the annotation and the dimension can be improved. .

  In the present embodiment, the line-of-sight direction information (here, the line-of-sight vector v) indicating the direction of the line of sight when the three-dimensional image is displayed is input, and the normal of the drawing surface on which the related information is drawn Normal direction information indicating a direction (here, normal vector n) is derived based on the direction information, and a direction indicated by the input gaze direction information and a direction indicated by the derived normal direction information Since the related information facing the substantially front is detected by detecting the related information in which the angle (here, the angle X) is equal to or smaller than the predetermined angle (here, the angle α), the related information is simply Can be detected.

  Moreover, in this Embodiment, since the said predetermined angle can be input, the display range of related information can be set easily.

  Furthermore, in the present embodiment, when there are a plurality of drawing planes of the related information, an instruction to select a drawing plane to be displayed (in this case, an instruction input by a slider) is input, and the input selection instruction Since related information other than the displayed drawing surface is excluded from the display target, it is possible to prevent a decrease in visibility of related information due to overlapping display of related information when there are a plurality of related information drawing surfaces. it can.

  As mentioned above, although this invention was demonstrated using embodiment, the technical scope of this invention is not limited to the range as described in the said embodiment. Various changes or improvements can be added to the above-described embodiment without departing from the gist of the present invention, and embodiments to which such changes or improvements are added are also included in the technical scope of the present invention.

  The above embodiments do not limit the invention according to the claims (claims), and all the combinations of features described in the embodiments are essential for the solution of the invention. Is not limited. The above embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. Even if some constituent requirements are deleted from all the constituent requirements shown in the above-described embodiment, as long as an effect is obtained, a configuration from which these several constituent requirements are deleted can be extracted as an invention.

  For example, the configuration of the three-dimensional image display device 10 described in the above embodiment (see FIGS. 1 to 3) is merely an example, and it is needless to say that the configuration can be appropriately changed without departing from the gist of the present invention. . For example, the printer 50 connected to the three-dimensional image display apparatus 10 is not essential and can be deleted.

  The data structure of the annotation data and dimension data (see FIGS. 4 and 5) shown in the above embodiment is also an example, and items to be stored are added or unnecessary items are deleted as necessary. Needless to say, the stored contents of each item can be changed as appropriate.

  The processing flow (see FIGS. 9 and 10) of the annotation / dimension display processing program and the annotation / dimension display switching processing program shown in the above embodiment is also an example, and does not depart from the gist of the present invention. Needless to say, it can be changed as appropriate.

  Furthermore, the configuration of the display screen shown in the above embodiment (see FIGS. 8 and 11) is also an example, and it is needless to say that the display screen can be appropriately changed without departing from the gist of the present invention.

It is a perspective view which shows the external appearance of the three-dimensional image display apparatus which concerns on embodiment. It is a block diagram which shows the principal part structure of the electric system of the three-dimensional image display apparatus which concerns on embodiment. It is a schematic diagram which shows the main memory content of the hard disk with which the three-dimensional image display apparatus which concerns on embodiment was equipped. It is a schematic diagram which shows the data structure of the annotation data which concern on embodiment. It is a schematic diagram which shows the data structure of the dimension data which concern on embodiment. It is the schematic where it uses for description of the annotation data which concerns on embodiment. It is the schematic where it uses for description of the dimension data which concern on embodiment. It is the schematic which shows the display state example of the three-dimensional image which concerns on embodiment, an annotation, and a dimension, a gaze vector, and a normal vector. It is a flowchart which shows the flow of a process of the annotation and dimension display processing program which concerns on embodiment. It is a flowchart which shows the flow of a process of the annotation / dimension display switching process program which concerns on embodiment. It is the schematic which shows the example of a display state of the slider which concerns on embodiment, and the example of the state of the drawing surface made into the display object by the said slider.

Explanation of symbols

10 3D image display device 14 Keyboard (input means)
16 mouse (selection instruction input means)
18 Display (display means)
22 CPU (detection means)
28 Hard disk (storage means)

Claims (11)

A three-dimensional image display device that displays a three-dimensional image and displays related information related to the three-dimensional image so as to face a predetermined direction at a predetermined position with reference to the display position of the three-dimensional image Because
Storage means for storing in advance image information indicating the three-dimensional image and storing the related information in advance in association with position information indicating the position and direction information indicating the direction;
Detecting means for detecting the related information facing substantially front in a state where the three-dimensional image is displayed based on the direction information;
Display means for displaying the related information detected by the detection means together with the three-dimensional image at a position indicated by the position information;
A three-dimensional image display device. The three-dimensional image display apparatus according to claim 1, wherein the related information is at least one of annotation information indicating an annotation related to the three-dimensional image and dimension information indicating a dimension of the three-dimensional image. An input unit for inputting gaze direction information indicating a gaze direction when displaying the three-dimensional image;
The detection means derives normal direction information indicating a normal direction of a drawing surface on which the related information is drawn based on the direction information, and a direction indicated by the line-of-sight direction information input by the input means The three-dimensional according to claim 1 or 2, wherein the related information facing the substantially front is detected by detecting related information in which an angle between the direction indicated by the derived normal direction information is a predetermined angle or less. Image display device. The three-dimensional image display apparatus according to claim 3, wherein the input unit further inputs the predetermined angle. A selection instruction input means for inputting a selection instruction of a drawing surface to be displayed when there are a plurality of drawing surfaces of the related information;
Exclusion means for excluding related information other than the drawing surface indicated by the selection instruction input by the selection instruction input means from the display target;
The three-dimensional image display device according to any one of claims 1 to 4, further comprising: A three-dimensional image display method for displaying a three-dimensional image and displaying related information related to the three-dimensional image so as to face a predetermined direction at a predetermined position with reference to the display position of the three-dimensional image Because
The image information indicating the three-dimensional image is stored in advance, and the related information is stored in advance in association with the position information indicating the position and the direction information indicating the direction,
Based on the direction information, the related information facing the front is displayed in a state where the three-dimensional image is displayed,
Displaying the detected related information together with the three-dimensional image at a position indicated by the position information;
3D image display method. The three-dimensional image display method according to claim 6, wherein the related information is at least one of annotation information indicating an annotation regarding the three-dimensional image and dimension information indicating a dimension of the three-dimensional image. The line of sight direction information indicating the direction of the line of sight when displaying the three-dimensional image is input, and the normal direction information indicating the normal direction of the drawing surface on which the related information is drawn is derived based on the direction information. ,
The related information which faces the said substantially front is detected by detecting the relevant information in which the angle between the direction shown by the said gaze direction information and the direction shown by the said normal direction information is a predetermined angle or less. The three-dimensional image display method according to claim 7. A three-dimensional image display program for displaying a three-dimensional image and displaying related information related to the three-dimensional image in a predetermined direction at a predetermined position on the basis of the display position of the three-dimensional image Because
A detection step of detecting the related information facing substantially front in a state where the three-dimensional image is displayed based on direction information indicating the direction;
A display step of displaying the related information detected by the detection step together with the three-dimensional image at a position indicated by position information indicating the position;
A three-dimensional image display program for causing a computer to execute. The three-dimensional image display program according to claim 9, wherein the related information is at least one of annotation information indicating an annotation related to the three-dimensional image and dimension information indicating a dimension of the three-dimensional image. An input step of inputting gaze direction information indicating a gaze direction when displaying the three-dimensional image;
A derivation step of deriving normal direction information indicating a normal direction of a drawing surface on which the related information is drawn based on the direction information;
Further comprising
In the detection step, related information in which an angle between the direction indicated by the line-of-sight direction information input by the input step and the direction indicated by the normal direction information derived by the derivation step is equal to or less than a predetermined angle. The three-dimensional image display program according to claim 9 or 10, wherein the related information facing substantially the front is detected by detecting.

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