WO2017152703A1

WO2017152703A1 - Three-dimensional tag implementation method and device

Info

Publication number: WO2017152703A1
Application number: PCT/CN2016/113204
Authority: WO
Inventors: 陈天龙
Original assignee: 广州视睿电子科技有限公司
Priority date: 2016-03-11
Filing date: 2016-12-29
Publication date: 2017-09-14
Also published as: CN105825551A

Abstract

A three-dimensional tag implementation method and device. The method comprises the steps of: obtaining click coordinates on a three-dimensional model interface (S110); performing a hit test according to the click coordinates to obtain an information list of the hit test (S120); if the information list is not empty, obtaining, according to the information list, a three-dimensional model closest to the click coordinates and an intersection point corresponding to the closest three-dimensional model (S130); obtaining the direction, the distance, and the angle of a tag to be generated according to the intersection point and the position of the intersection point in the closest three-dimensional model (S140); generating a three-dimensional geometric figure according to the direction, the distance, and the angle of the tag to be generated (S150); and adding a text edit control to the three-dimensional geometric figure to generate a three-dimensional tag (S160). The method can add a three-dimensional tag to a three-dimensional model without editing by using professional editing software, and therefore is simple to operate and suitable for non-professional persons.

Description

Three-dimensional label implementation method and device

Technical field

The present invention relates to the field of multi-dimensional model technologies, and in particular, to a method and an apparatus for implementing a three-dimensional label.

Background technique

A three-dimensional model is a polygonal representation of an object, usually displayed by a computer or other video device. The displayed object can be a real world entity or a fictional object. Currently, 3D models have been used in a variety of different fields, such as accurate models for making organs in the medical industry, buildings or landscapes used in the construction industry, models for displaying compounds in the multimedia teaching industry, etc. .

When using 3D models, users often need to mark on the 3D model to indicate what is in a position on the 3D model and so on. In the prior art, the two-dimensional model is often used to mark the three-dimensional model, but the added two-dimensional label cannot follow the rotation, scaling, and the like of the three-dimensional model, and the information of the remark cannot be saved, and the operation experience is poor. If a professional editing software is used to add a three-dimensional label, the operation is complicated and the usage conditions are too high, which affects the use of most users.

Summary of the invention

Based on this, it is necessary to provide a method and apparatus for realizing a simple operation of a three-dimensional label in response to the above problems.

In order to achieve the above object, the technical solution adopted by the present invention is as follows:

A three-dimensional label implementation method includes the steps of:

Get the click coordinates on the 3D model interface;

Performing a hit test according to the click coordinates to obtain a list of information of the hit test;

If the information list is not empty, obtain a three-dimensional model closest to the click coordinate according to the information list, and an intersection point corresponding to the latest three-dimensional model;

Obtaining a direction, a distance, and an angle of the label to be generated according to the intersection point and the position of the intersection point in the closest three-dimensional model;

Generating a three-dimensional geometric figure according to the direction, distance, and angle of the label to be generated;

Add a text editing control to the three-dimensional geometry to generate a three-dimensional label.

The three-dimensional label implementation method of the present invention, when the user clicks on the three-dimensional model interface, performs a hit test according to the two-dimensional coordinates of the click. If there is a three-dimensional model in the point, the three-dimensional model closest to the click point and the three-dimensional coordinates of the intersection point are acquired according to the information list. To determine the position and angle of the label, generate a three-dimensional geometry, and add a text editing control to the geometry to generate a three-dimensional label. The invention realizes adding a three-dimensional label in the three-dimensional model, and the added three-dimensional label can follow the rotation, zooming and the like of the three-dimensional model, and the operation experience is good; without professional editing software for editing, the user only needs to perform the usual position at the position where the label needs to be added. With the click operation, you can directly add the 3D label to the corresponding location, which is convenient and flexible, easy to operate, and suitable for non-professionals.

In one embodiment, the hit test is performed according to the click coordinates, and the step of obtaining the information list of the hit test includes: converting the click coordinates into a cone ray having the click coordinates as a vertex; and obtaining a hit according to the cone ray A list of information tested, wherein the list of information includes a three-dimensional model intersecting the cone ray and an intersection point.

In an embodiment, after generating the three-dimensional label, the method further includes the step of: storing the information of the three-dimensional label into a corresponding file according to a storage rule corresponding to the format of the latest three-dimensional model. The invention can save the information of the label (three-dimensional information and edited text information), and can directly display the three-dimensional label when the next time is opened, which is convenient for the user to use.

In an embodiment, after the information of the three-dimensional tag is stored in the corresponding file, the method further includes the step of deleting the three-dimensional tag by deleting the information of the three-dimensional tag in the file. If the 3D label is no longer needed to be displayed, the user only needs to delete the corresponding information in the file, and the 3D label is no longer displayed, and the operation is simple and convenient.

In one embodiment, after obtaining the information list of the hit test, the method further includes the step of: returning the click coordinates on the three-dimensional model interface if the information list is empty. If the user does not have any 3D models in the point, then do not add 3D tags and continue to monitor the click operation.

In one embodiment, the click coordinates include coordinates of a mouse click, coordinates of a keyboard click, and coordinates of a touch point.

A three-dimensional label implementation device includes:

Clicking on the coordinate acquisition module for acquiring the click coordinates on the three-dimensional model interface;

An information list obtaining module, configured to perform a hit test according to the click coordinates, and obtain a list of information of the hit test;

a list information obtaining module, configured to acquire, according to the information list, a three-dimensional model closest to the click coordinate and an intersection point corresponding to the closest three-dimensional model, when the information list is not empty;

a label information determining module, configured to obtain a direction, a distance, and an angle of the label to be generated according to the intersection point and the position of the intersection point in the closest three-dimensional model;

a geometric image generating module, configured to generate a three-dimensional geometric figure according to a direction, a distance, and an angle of the label to be generated;

A three-dimensional label generation module is configured to add a text editing control to the three-dimensional geometric figure to generate a three-dimensional label.

The three-dimensional label implementing device of the present invention performs a hit test according to the two-dimensional coordinates of the click when the user clicks on the three-dimensional model interface, and if there is a three-dimensional model in the point, obtains the three-dimensional model closest to the clicked point and the three-dimensional coordinates of the intersecting point according to the information list. To determine the position and angle of the label, generate a three-dimensional geometry, and add a text editing control to the geometry to generate a three-dimensional label. The invention realizes adding a three-dimensional label in the three-dimensional model, and the added three-dimensional label can follow the rotation, zooming and the like of the three-dimensional model, and the operation experience is good; without professional editing software for editing, the user only needs to perform the usual position at the position where the label needs to be added. With the click operation, you can directly add the 3D label to the corresponding location, which is convenient and flexible, easy to operate, and suitable for non-professionals.

In one embodiment, the information list obtaining module includes: a coordinate conversion unit configured to convert the click coordinates into a cone ray having the click coordinates as a vertex; a list obtaining unit configured to acquire according to the cone ray A list of information for a hit test, wherein the list of information includes a three-dimensional model intersecting the cone ray and an intersection point.

In one embodiment, the three-dimensional tag implementation apparatus of the present invention further includes a tag information saving module connected to the three-dimensional tag generating module, and the tag information saving module is configured to store the rule according to a format corresponding to a format of the latest three-dimensional model. The information of the three-dimensional label is stored in the corresponding file. The invention can save the information of the label (three-dimensional information and edited text information), and can directly display the three-dimensional label when the next time is opened, which is convenient for the user to use.

In one embodiment, the three-dimensional label implementation apparatus of the present invention further includes a label deletion module connected to the label information storage module, the label deletion module deleting the three-dimensional label by deleting information of the three-dimensional label in the file. delete. If the 3D label is no longer needed to be displayed, the user only needs to delete the corresponding information in the file, and the 3D label is no longer displayed, and the operation is simple and convenient.

In one embodiment, when the list of information is empty, the click coordinate acquisition module reacquires the click coordinates on the three-dimensional model interface. If the user does not have any 3D models in the point, then do not add 3D tags and continue to monitor the click operation.

DRAWINGS

1 is a schematic flow chart of an embodiment of a method for implementing a three-dimensional label according to the present invention;

2 is a schematic structural view of Embodiment 1 of a three-dimensional label implementation device according to the present invention;

3 is a schematic structural diagram of an embodiment of an information list obtaining module according to the present invention;

4 is a schematic structural diagram of Embodiment 2 of a three-dimensional label implementation device according to the present invention;

FIG. 5 is a schematic structural diagram of Embodiment 3 of a three-dimensional tag implementation apparatus according to the present invention.

detailed description

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and preferred embodiments.

As shown in FIG. 1 , a method for implementing a three-dimensional label includes the following steps:

S110. Obtain a click coordinate on the three-dimensional model interface.

S120. Perform a hit test according to the click coordinates to obtain a list of information of the hit test.

S130. If the information list is not empty, obtain a three-dimensional model that is closest to the click coordinate according to the information list, and an intersection point corresponding to the latest three-dimensional model;

S140. Obtain a direction, a distance, and an angle of the label to be generated according to the intersection point and a position of the intersection point in the closest three-dimensional model.

S150. Generate a three-dimensional geometric figure according to a direction, a distance, and an angle of the label to be generated.

S160. Add a text editing control to the three-dimensional geometric figure to generate a three-dimensional label.

The invention realizes adding a three-dimensional label in the three-dimensional model, and the added three-dimensional label can follow the rotation, zooming and the like of the three-dimensional model, and the operation experience is good; without professional editing software for editing, the user only needs to perform the usual position at the position where the label needs to be added. With the click operation, you can directly add the 3D label to the corresponding location, which is convenient and flexible, easy to operate, and suitable for non-professionals.

In step S110, a common three-dimensional model file is imported, for example, a three-dimensional model file such as *.obj, *.dae, *.fbx, *.3ds, and the three-dimensional model is correctly rendered onto the interface, that is, a three-dimensional model interface is obtained. The 3D model interface supports operations such as rotation and scaling of the 3D model.

When a three-dimensional label needs to be added, the user performs a normal click operation at a position where the three-dimensional label needs to be added, and the click coordinates obtained according to the click operation are two-dimensional coordinates. There are many ways to obtain click coordinates. For example, in one embodiment, the click coordinates may include coordinates of a mouse click, coordinates of a keyboard click, coordinates of a touch point, and the like. That is, the user can click through the mouse or the keyboard, or directly touch with a finger or the like.

In step S120, when the user performs a click operation, the hit test is performed with the coordinates of the click point. In an embodiment, the step of performing a hit test according to the click coordinates to obtain a list of information of the hit test may include:

Converting the click coordinates to a cone ray with the click coordinates as a vertex;

A list of information of the hit test is obtained from the cone ray, wherein the list of information includes a three-dimensional model intersecting the cone ray and an intersection point. The list of information may also include information such as visual objects and grids that intersect the cone ray.

In one embodiment, after obtaining the information list of the hit test, the method further includes the step of: returning the click coordinates on the three-dimensional model interface if the information list is empty. If the information list is empty, that is, any 3D model is not clicked. If no comment is added, the operation is ended and the click coordinates are reacquired.

If the obtained information list is not empty, there is a three-dimensional model in the point to perform subsequent operations.

In step S130, when making a hit test, the cone ray may intersect with a plurality of three-dimensional models, that is, information of a plurality of three-dimensional models and corresponding intersection points may exist in the information list. According to the information of the information list, the three-dimensional model closest to the click coordinate and the intersection point (hit point) of the cone ray with the nearest three-dimensional model are calculated, wherein the intersection point is a three-dimensional coordinate.

In step S140, the intersection point obtained in step S130 is the root of the label to be generated, and the direction, distance and angle of the label to be generated are determined according to the position of the intersection point in the three-dimensional model. For example, the X coordinate of the intersection point is smaller than the X point of the intermediate coordinate of the three-dimensional model, that is, the intersection point is in the left half of the three-dimensional model, and the label to be generated extends to the left.

After the direction, the distance and the angle of the label to be generated are obtained in step S150, a three-dimensional geometric figure can be dynamically generated according to the information in the corresponding position in the three-dimensional model, wherein the manner of generating the three-dimensional geometric image can be according to the prior art. The existing way to achieve.

In step S160, after the three-dimensional geometric figure is obtained, a text editing control is added to the three-dimensional geometric figure to generate a three-dimensional label, and the user can double-click to edit the label content. The manner in which text editing controls are added to a three-dimensional geometric image can be implemented in accordance with methods already available in the prior art.

In order to facilitate the next use, the user needs to store the tag information. Therefore, in an embodiment, after generating the three-dimensional label, the method may further include: step, according to the storage rule corresponding to the format of the latest three-dimensional model, the information of the three-dimensional label, including the content of the user-edited note, and the position of the three-dimensional label itself. Three-dimensional information is stored in the corresponding file. After storage, the 3D label will be automatically displayed the next time the file is opened.

When you do not need to display 3D tags, you need to delete the added 3D tags. In an embodiment, after the information of the three-dimensional tag is stored in the corresponding file, the method may further include the step of deleting the three-dimensional tag by deleting the information of the three-dimensional tag in the file. The user can also directly select the 3D label to be deleted in the interface, and delete the 3D label directly by using the shortcut key.

In order to better understand the present invention, the following is introduced in conjunction with a specific application scenario.

When the teacher explains the structure of the compound through the 3D model, in order to make it easier for the student to understand the elements of a certain position, it is necessary to add a three-dimensional label to the three-dimensional model. By using the method of the invention, the teacher only needs to click on the corresponding position, then the 3D label can be directly added to the 3D model, and then the teacher can double-click to edit the content of the 3D label, and directly complete the process of adding the 3D label at the explanation site. And the added 3D tags can follow the operations of rotation and scaling of the 3D model. It can be seen from the specific application that the invention can facilitate the teacher to add the three-dimensional label, and also enables the student to quickly and accurately capture the information.

Based on the same inventive concept, the present invention further provides a three-dimensional label implementing device, and a specific embodiment of the device of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 2, a three-dimensional label implementation device includes:

Clicking on the coordinate acquisition module 110 for acquiring click coordinates on the three-dimensional model interface;

The information list obtaining module 120 is configured to perform a hit test according to the click coordinates to obtain a list of information of the hit test;

The list information obtaining module 130 is configured to: when the information list is not empty, acquire a three-dimensional model that is closest to the click coordinate according to the information list, and an intersection point corresponding to the latest three-dimensional model;

a label information determining module 140, configured to obtain a direction, a distance, and an angle of the label to be generated according to the intersection point and the position of the intersection point in the closest three-dimensional model;

a geometric image generating module 150, configured to generate a three-dimensional geometric figure according to a direction, a distance, and an angle of the label to be generated;

The three-dimensional label generating module 160 is configured to add a text editing control to the three-dimensional geometric figure to generate a three-dimensional label.

There are many ways to obtain click coordinates. For example, in one embodiment, the click coordinates may include coordinates of a mouse click, coordinates of a keyboard click, coordinates of a touch point, and the like. That is, the user can click through the mouse or the keyboard, or directly touch with a finger or the like.

When the user performs a click operation, the information list obtaining module 120 performs a hit test with the coordinates of the click point to obtain a list of information. In an embodiment, as shown in FIG. 3, the information list obtaining module 120 may include:

a coordinate conversion unit 1201, configured to convert the click coordinate into a cone ray with the click coordinate as a vertex;

The list obtaining unit 1202 is configured to obtain a list of information of the hit test according to the cone ray, wherein the list of information includes a three-dimensional model intersecting the cone ray and an intersection point and the like.

In one embodiment, when the list of information is empty, the click coordinate acquisition module 110 reacquires the click coordinates on the three-dimensional model interface. If the information list is empty, that is, any 3D model is not clicked. If no comment is added, the operation is ended and the click coordinates are reacquired.

If the acquired information list is not empty, the list information acquisition module 130 calculates a three-dimensional model closest to the click coordinate and the intersection point (hit point) of the cone ray with the nearest three-dimensional model based on the information of the information list. The tag information determining module 140 determines, as the root of the tag to be generated, the intersection point, and determines the direction, distance, and angle of the tag to be generated according to the position of the intersection point in the three-dimensional model. The geometric image generation module 150 dynamically generates a three-dimensional geometric figure based on the information at corresponding positions in the three-dimensional model. The three-dimensional label generation module 160 adds a text editing control to the three-dimensional geometric figure to generate a three-dimensional label. The user can double-click to edit the label content.

In order to facilitate the next use, the user needs to store the tag information. Therefore, in one embodiment, as shown in FIG. 4, the apparatus of the present invention may further include a tag information saving module 170 connected to the three-dimensional tag generating module 160. The tag information saving module 170 is configured to store the information of the three-dimensional tag into a corresponding file according to a storage rule corresponding to a format of a recent three-dimensional model.

When you do not need to display 3D tags, you need to delete the added 3D tags. In an embodiment, as shown in FIG. 5, the apparatus of the present invention may further include a label deletion module 180 connected to the label information saving module 170, and the label deletion module 180 deletes the three-dimensional label in the file. Information to delete the three-dimensional label. The user can also directly select the 3D label to be deleted in the interface, and delete the 3D label directly by using the shortcut key.

Other technical features of the device of the present invention are the same as those of the present invention, and are not described herein.

The technical features of the above-described embodiments may be arbitrarily combined. For the sake of brevity of description, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be considered as the scope of this manual.

The above-described embodiments are merely illustrative of several embodiments of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be determined by the appended claims.

Claims

A method for implementing a three-dimensional label, comprising the steps of:

Get the click coordinates on the 3D model interface;

Performing a hit test according to the click coordinates to obtain a list of information of the hit test;

If the information list is not empty, obtain a three-dimensional model closest to the click coordinate according to the information list, and an intersection point corresponding to the latest three-dimensional model;

Obtaining a direction, a distance, and an angle of the label to be generated according to the intersection point and the position of the intersection point in the closest three-dimensional model;

Generating a three-dimensional geometric figure according to the direction, distance, and angle of the label to be generated;

Add a text editing control to the three-dimensional geometry to generate a three-dimensional label.
The method for implementing a three-dimensional tag according to claim 1, wherein the step of performing a hit test according to the click coordinates to obtain a list of information for a hit test comprises:

Converting the click coordinates to a cone ray with the click coordinates as a vertex;

A list of information of the hit test is obtained from the cone ray, wherein the list of information includes a three-dimensional model intersecting the cone ray and an intersection point.
The method for implementing a three-dimensional tag according to claim 1, wherein

After generating the 3D tag, it also includes the steps:

The information of the three-dimensional label is stored in a corresponding file according to a storage rule corresponding to a format of a recent three-dimensional model;

After storing the information of the three-dimensional label into the corresponding file, the method further includes the steps of:

The three-dimensional tag is deleted by deleting the information of the three-dimensional tag in the file.
The method for implementing a three-dimensional tag according to claim 1, wherein after obtaining the information list of the hit test, the method further comprises the steps of:

If the information list is empty, the step of obtaining the click coordinates on the three-dimensional model interface is returned.
The method for implementing a three-dimensional tag according to any one of claims 1 to 4, wherein the click coordinates include coordinates of a mouse click, coordinates of a keyboard click, and coordinates of a touch point.
A three-dimensional label implementation device, comprising:

Clicking on the coordinate acquisition module for acquiring the click coordinates on the three-dimensional model interface;

An information list obtaining module, configured to perform a hit test according to the click coordinates, and obtain a list of information of the hit test;

a list information obtaining module, configured to acquire, according to the information list, a three-dimensional model closest to the click coordinate and an intersection point corresponding to the closest three-dimensional model, when the information list is not empty;

a label information determining module, configured to obtain a direction, a distance, and an angle of the label to be generated according to the intersection point and the position of the intersection point in the closest three-dimensional model;

a geometric image generating module, configured to generate a three-dimensional geometric figure according to a direction, a distance, and an angle of the label to be generated;

A three-dimensional label generation module is configured to add a text editing control to the three-dimensional geometric figure to generate a three-dimensional label.
The apparatus for implementing a three-dimensional tag according to claim 6, wherein the information list obtaining module comprises:

a coordinate conversion unit, configured to convert the click coordinate into a cone ray with the click coordinate as a vertex;

a list obtaining unit for acquiring a list of information of a hit test according to the cone ray, wherein the list of information includes a three-dimensional model intersecting the cone ray and an intersection point.
The three-dimensional label implementing device according to claim 6, wherein

The 3D tag implementation device further includes a tag information saving module connected to the 3D tag generating module, where the tag information saving module is configured to store information of the 3D tag according to a storage rule corresponding to a format of a recent 3D model. Go to the corresponding file;

The three-dimensional label implementation apparatus further includes a label deletion module connected to the label information storage module, and the label deletion module deletes the three-dimensional label by deleting information of the three-dimensional label in the file.
The three-dimensional tag implementation apparatus according to claim 6, wherein when the information list is empty, the click coordinate acquisition module reacquires the click coordinates on the three-dimensional model interface.
The three-dimensional label implementing apparatus according to any one of claims 6 to 9, wherein the click coordinates include coordinates of a mouse click, coordinates of a keyboard click, and coordinates of a touch point.