JP6005317B1 - Drawing data creation method using a system for displaying and operating two-dimensional or three-dimensional object data - Google Patents

Abstract

To provide a drawing data creation method in which edited CAD data can be easily obtained from a measured point cloud. The present invention is a method using a system 1 in which a second means applies a virtual object to a part of a point cloud of an object displayed on an output device in response to a user input. The point group selecting step S2 for selecting as an element, the copying unit for executing copying or cutting on the object element selected in the point group selecting step, and the editing unit according to the input from the user, A placement step S4 for placing the copied object element in the virtual space by executing pasting or pasting and moving, and in the placement step S4, the point cloud obtained by measuring the real space The object element copied or duplicated in the duplication step S3 is arranged at a position continuous with the point group displayed in the virtual space so that a shape different from the above is displayed. [Selection] Figure 15

Description

  The present invention relates to a drawing data creation method using a system for displaying and operating two-dimensional or three-dimensional object data.

  Conventionally, a CAD (Computer Aided Design) system has been used for designing industrial products. In this case, the design drawing data created by the CAD system can be expressed as an object in a virtual space generated by a computer, and the operation of the product can be confirmed by operating or moving in the virtual space.

  In other words, by using the shape data created by the CAD system, it is possible to verify whether there is any interference between parts by assembling or moving the product in the virtual space. Can correct drawing data on a CAD system. As a prior patent related to such a technique, for example, there is one shown in Patent Document 1.

  On the other hand, in recent years, a real space has been measured using a three-dimensional measurement technique to acquire point cloud data. Many attempts have been made to generate drawing data semi-automatically based on the obtained point cloud data. However, both the automation rate and the quality of the results are insufficient. Work is required.

International Publication No. WO2005 / 041075

  In the conventional system, when placing product shape data in the virtual space, it is necessary to place existing products, parts, peripheral equipment, etc. in the same virtual space in order to check for component interference, etc. May occur. In such a case, existing parts and equipment other than products cannot be arranged in the virtual space without preparing drawing data created by CAD or the like. It is good when there is already drawing data for existing parts, equipment, etc., but when there is no drawing data, it has to be created from the beginning by using a CAD system, which takes time.

  The invention made in view of such circumstances is the invention described in Japanese Patent Application No. 2015-180187. By this invention, the system which can acquire the shape information of the existing components and facilities from the point cloud data obtained by measuring real space, and can handle it as a shape element in virtual space equivalent to drawing data is realized.

  On the other hand, conventionally, drawing data converted into CAD data, which is based on the measured point cloud, it is difficult to easily edit the display shape, or the data amount is reduced. It was difficult. That is, it is desirable that drawing data after editing having a shape different from the measured shape of the object can be easily obtained. Therefore, the present inventor has found that this problem can be solved by using the invention described in Japanese Patent Application No. 2015-180187.

  The present invention has been made in view of such circumstances, and in the case where the original data is a point cloud, creation of drawing data from which CAD data representing a shape different from the shape of the measured object can be easily obtained. It aims to provide a method.

  The drawing data creation method of the present invention includes a first means for displaying a point cloud obtained by measuring a real space in a virtual space represented on the output device, and one of the point clouds displayed on the output device. A second means for selecting a part or all as virtual object elements, and an object element composed of two-dimensional or three-dimensional shape data in a virtual space expressed on an output device together with the object element composed of the point cloud A third means for arranging, generating hierarchical structure data, and assigning the object element selected from the point group or the object element obtained from the shape data to each group in the same hierarchical structure data, the hierarchical structure Fourth means for recording the arrangement information of each object element in the data, and moving, copying, pasting, cutting, or deleting the object element displayed in the virtual space according to a user input Execution CAD data using a system for displaying and operating two-dimensional or three-dimensional object data having editing means for reflecting the execution result in the hierarchical structure data, or drawing data that can be converted into CAD data In accordance with a user input, the first means displays a point cloud of the object obtained by measuring the object in the virtual space in response to a user input, and a user input Accordingly, the second means selects a part of the point cloud of the object displayed on the output device as a virtual object element, and the editing is performed in response to a user input. A copying step for copying or cutting the object elements selected in the point group selection step; and the editing unit performs pasting or pasting and moving according to a user input. By the way Arranging the arranged object elements in the virtual space, and in the arranging step, the duplicating step is performed so that a shape different from the point group obtained by measuring the real space is displayed. The object element copied or duplicated in (1) is arranged at a position continuous with the point cloud displayed in the virtual space.

  According to the present invention, by using the above system, a part of the selected point cloud data can be copied and pasted, and the drawing data can be easily edited as a whole. Then, the object is displayed as one continuous object (or a series of scenery) by the arrangement process. This edited point cloud data can be converted into CAD data in the same manner as converting the measured point cloud into CAD data. That is, edited CAD data after editing having a shape different from the measured shape of the object can be easily obtained.

It is a whole lineblock diagram showing one embodiment of the present invention. It is a system configuration figure showing one embodiment of the present invention. It is a schematic block diagram which shows the process of a shape file in one Embodiment of this invention. It is a schematic block diagram which shows the process of a point cloud file in one Embodiment of this invention. It is a figure which shows the example of a display of shape and point cloud data in one Embodiment of this invention. It is a schematic block diagram which shows hierarchical structure data in one Embodiment of this invention. It is the schematic which shows the point cloud data display edit part in one Embodiment of this invention. It is a flowchart which shows the flow of a process in one Embodiment of this invention. It is a figure which shows the example of a reading process of point cloud data in one Embodiment of this invention. It is a figure which shows the example of a cutting-out process of point cloud data in one Embodiment of this invention. It is the schematic which shows the range designation | designated method of point cloud data in one Embodiment of this invention. It is the schematic which shows the example of an edit process of a shape and point cloud data in one Embodiment of this invention. It is the schematic which shows the example of an edit process of a shape and point cloud data in one Embodiment of this invention. It is a flowchart for demonstrating the drawing data creation method in one Embodiment of this invention. It is the displayed drawing data (CAD data) for demonstrating the edit by Example 1. FIG. It is another displayed drawing data (CAD data) for demonstrating the edit by Example 1. FIG. It is the displayed point cloud data for demonstrating the edit in FIG. It is the displayed drawing data (mesh data) for demonstrating the edit by Example 2. FIG. 10 is a flowchart for explaining a drawing data creation method according to the second embodiment. 12 is a flowchart for explaining a drawing data creation method according to the third embodiment. FIG. 10 is another displayed drawing data (CAD data) for explaining editing according to the third embodiment. FIG. 10 is another displayed drawing data (CAD data) for explaining editing according to the third embodiment. It is a flowchart for demonstrating the drawing data creation method in one Embodiment of this invention. It is the displayed drawing data (CAD data) for demonstrating the edit by the drawing data creation method 2. FIG.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the following, the basic (system) part is the same as the content described in Japanese Patent Application No. 2015-180187, and Japanese Patent Application No. 2015-180187 is cited. The following embodiments will be described by taking as an example a system 1 that uses a mixture of object data expressed by shapes and point clouds as an example of a two-dimensional / three-dimensional object manipulation system of the present invention.

(overall structure)
As shown in FIG. 1, the mixed utilization system 1 is connected to an input device 2 such as a mouse and a keyboard for inputting instructions to the system 1 and an output device 3 such as a display for displaying processing results. The CAD file 5 received from the CAD system 4 etc. and the point cloud text file 7 received from the spatial scanner 6 etc. are edited and output to the shape data / point cloud data / hierarchical structure data mixed file 8. It is.

  FIG. 2 is a system configuration diagram showing the system 1. The system 1 includes a program storage unit 15 in a bus 13 to which a CPU 10, a RAM 11, and an input / output interface 12 (to which the CAD system 4, the spatial scanner 6, the input device 2, and the output device 3 are connected) are connected. The data storage unit 14 is connected.

  The data storage unit 14 stores the CAD file 5, the point cloud text file 7, and the shape data / point cloud data / hierarchical structure data mixed file 8. The program storage unit 15 includes a CAD file processing unit 17, a point cloud text file processing unit 18, a shape data display editing unit 19, a point group data display editing unit 20, and a hierarchical structure data display editing unit 21. The mixed file input / output unit 24 is stored.

  Here, the program storage unit 15 and the data storage unit 14 are actually storage media such as a hard disk. Each component 17 to 24 is actually a computer software program, and functions as each component of the present invention by being called, expanded and executed on the RAM 11 by the CPU 10. .

Hereinafter, the operation of each of the components 17 to 24 will be described together with the actual operation.
(File input process)
First, as shown in FIG. 3, the CAD file processing unit 17 reads a CAD file 5 which is CAD drawing data and can process the shape data 27 and the hierarchical structure data display editing unit 21 which can be processed by the shape data display editing unit 19. It has a function of converting into CAD hierarchical structure data 26 that can be processed by. In this embodiment, the CAD file 5 is drawing data output by the external CAD system 4, but may be data created by other methods.

  Here, the “shape data” 27 is a set of mathematical formula information representing, for example, a curved surface / curve constituting a boundary of an object shape in a three-dimensional space. The CAD hierarchical structure data 26 is CAD-dedicated hierarchical structure data created when editing graphic data on the CAD system.

  As shown in FIG. 4, the point cloud text file processing unit 18 reads a point cloud text file 7 which is text point cloud information obtained by measuring an object existing in real space, and edits the point cloud data display / edit. It has a function of converting into point cloud data 28 that can be processed by the unit 20. Here, the “point group data” 28 is a set of coordinate values and color information of points in the three-dimensional space, and the set of points constitutes an object existing in the space. In this embodiment, the point cloud text file 7 is assumed to be data output from the external space scanner 6, but it may be created by other methods.

(Display and editing of shape data and point cloud data)
Next, functions of the shape data display editing unit 19, the point cloud data display editing unit 20, and the hierarchical structure data display editing unit 21 will be described. The shape data display editing unit 19 and the point cloud data display editing unit 20 read the shape data 27 and the point cloud data 28 processed by the CAD file processing unit 17 and the point cloud text file processing unit 18, respectively, and are shown in FIG. As described above, based on the hierarchical structure data 29 generated by the hierarchical structure data display editing unit 21, there is a function of outputting them as image data that can be displayed on a display or the like (the output device 3). In this example, the left side of the display screen is configured as a hierarchical structure data display unit 23, and the right side is configured as a shape data / point cloud data display unit 22.

  Here, the hierarchical structure data 29 generated by the hierarchical structure data display / editing section 21 is based on the CAD hierarchical structure data 26 included in the CAD file. The shape data 27 and the point cloud data 28 are collectively “grouped” and managed hierarchically. Here, the “group” is an element for collecting data (shape data 27, point cloud data 28) of a plurality of objects. In addition, since a group can group other groups, it has a tree structure in which the group is a node. This is represented by an acyclic directed graph. Here, the “acyclic directed graph” is a graph that has a direction from a parent to a child and cannot go around. FIG. 6 is a schematic diagram of an acyclic directed graph composed of groups, shape data, and point cloud data. This tree structure is “hierarchical structure data”. In each group, the arrangement information, display / non-display information, and color information of objects (shape data 27 and point cloud data 28) included in the group managed by the hierarchical structure data 29 are included. Contains information.

  As described above, the shape data display editing unit 19 and the point cloud data display editing unit 20 are the three-dimensional space of objects (shape data 27 and point cloud data 28) included in the group managed by the hierarchical structure data 29. The arrangement information, display / non-display information, and color information are read, and the objects of the point cloud data (point cloud 1) and shape data (shape 1, shape 2) are displayed in the same three-dimensional space. . Each shape data display editing unit 19 and point cloud data display editing unit 20 have a function of editing each data 27, 28 on the display based on the command from the mouse or the like. It is stored in the data 29. At this time, the hierarchical structure data display editing unit 21 assigns the attribute information including the name to each group managed by the hierarchical structure data 29, and the arrangement of the shape data 27 and the point cloud data 28 in the three-dimensional space. Information, display / non-display information, and color information can be added.

  The combination of the shape data 27, the point cloud data 28, and the hierarchical structure data 29 generated in this way can be output to the data storage unit 14 by the mixed file input / output unit 24 as the mixed file 8. Further, as shown in FIG. 7, the point cloud data display editing unit 20 includes a point cloud range designation unit 33 and a cut / delete / copy / integration unit 34.

(Mixed shape and point cloud data)
Hereinafter, a method of generating the mixed file 8 will be described using an actual example. FIG. 8 is a flowchart showing this process. In this example, the point cloud data is first edited. For this reason, first, the point cloud text file processing unit 18 reads the point cloud text file 7 in step S1. In this example, a point cloud text file 7 obtained by scanning the conference room space is used. This point cloud text file 7 is a text file composed of the spatial coordinates of the point cloud, color, read time, and the like.

  In step S2, the point cloud data display / editing unit 20 reads the point cloud data converted by the point cloud text file processing unit 18 and, as shown in FIG. 9, the shape data / point cloud data display unit 22 is read. The hierarchical structure data display editing unit 21 automatically generates the initial hierarchical structure of the hierarchical structure data 29 as shown in the figure. This initial data has a tree structure including the entire model, point group, group (_G1), and point group data (_S1).

  Next, in steps S3 and S4, a whiteboard is cut out from the point cloud data as an object existing in the space (FIG. 10). That is, the original point cloud data converted as described above is merely a set of a plurality of points, and a plurality of different objects existing in the space are not divided. Therefore, in this example, the whiteboard arranged in the conference room space is cut out as an object to be operated by this system.

  This clipping is started by designating the spatial coordinate range to be clipped by the point cloud range designating unit 33 of the point cloud data display editing unit 20 (step S3). In this example, the space is specified by first creating one box A as shown in FIG. 11 (a), and, as shown in FIG. 11 (b), several boxes B and C. It can be done in a complicated shape by adding or subtracting. In this example, the second box B (solid line) is added to the first box A (solid line), and the third box C (dashed line) is drawn, as shown in FIG. A range can be specified, and in this state, a “cutout” command can be given to cut out only the point cloud that falls within this range. This cuts out a complex object such as a whiteboard (step S4).

  Although not shown in this example, the point group selected by the box is colored red, for example, so that it can be recognized visually. In addition, the cutout is configured so that it can be repeated any number of times.

  Next, in step S5, the point cloud data of the cut-out whiteboard is arranged in the hierarchical structure data 29 (_S2). Specifically, the cut point cloud data (_S2) is included in the newly created group (_G2), and (_G2) is further included in (point cloud). Next, the arrangement information of the group (_G2) is edited and moved to a position different from the remaining point cloud data (_S1).

  As a result, the first point cloud data (_S1) is the remaining part excluding the whiteboard. FIG. 10 shows a 3D space rendering result after this operation.

  Next, in step S6, a CAD file representing the conference room is taken in and converted into shape data by the CAD file input unit, and placed in the hierarchical data in which the point cloud data including the whiteboard is placed (step S7, FIG. 12). In the tree structure of FIG. 12, (_S3) is shape data representing a conference room, (_G3) is a group including (_S3), and (shape) is a group including (_G3). In order to generate such hierarchical structure data, the hierarchical structure data display / editing unit reads the CAD hierarchical structure data included in the CAD file and includes it as a (shape) group under (the entire model). This is done automatically.

  Next, the group G2 under the point group is moved together with the point group data (_S2) to the hierarchical structure data of (shape), and then the arrangement information of the group (_G2) is edited, and an appropriate position considered by the user Place a whiteboard.

  In step S8, as shown in FIG. 13, a plurality of point groups representing the whiteboard are copied and arranged at different positions inside the shape data representing the building. To create such data, for example, the following is performed.

  First, (_S2) is copied to create (_S4), (_S5), and (_S6). Next, (_G4), (_G5), and (_G6) are created and include (_S4), (_S5), and (_S6), respectively. And (_G4), (_G5), (_G6) is included under (shape). Finally, the arrangement information of (_G4), (_G5), and (_G6) is edited, and the copied whiteboard is arranged at an appropriate position considered by the user.

  Thereby, mixed data of shape data and point cloud data as shown in FIG. 13 can be generated. The mixed file 8 is output to the data storage unit 14 by the mixed file input / output unit 24. In this embodiment, the mixed file input / output unit 24 outputs the mixed file of the shape data and the point cloud data in an intermediate format (for example, IGES format) for storing drawing information. As a result, the point cloud data can be operated with a drawing creation system such as CAD while the point cloud data remains unchanged.

  In addition, the mixed file input / output unit 24 can read the mixed file 8 and display it on the display units 22 and 23 of the display screen via the display editing units 19 to 21. Yes.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to said Embodiment, A various deformation | transformation is possible within the range of the summary of invention. For example, the above-described embodiment is a mixed utilization system of shape data and point cloud data, but may be a system that processes only point cloud data. In addition, the shape data is not limited to that output by CAD, and may be created by other various drawing creation software, or may handle a plurality of shape files. good. Similarly, the point cloud data may be created by any method.

(Summary of systems and programs)
The system of this embodiment can be described as follows. That is, according to the first main aspect of the present invention, a system for displaying and operating two-dimensional or three-dimensional object data, the point cloud obtained by measuring the real space is represented on the output device. A first means for displaying in the virtual space, a second means for selecting part or all of the point group displayed on the output device as a virtual object element, and two-dimensional or three-dimensional shape data. Third means for arranging an object element in a virtual space expressed on an output device together with an object element comprising the point group, and hierarchical structure data are generated, and each group in the same hierarchical structure data is assigned to each group from the point group. And a fourth means for recording arrangement information of each object element in the hierarchical structure data by causing the selected object element or the object element obtained from the shape data to belong. In other words, according to the above viewpoint, the point cloud obtained by measuring the real space is displayed in the virtual space represented on the output device, and one of the point clouds displayed on the output device is displayed. Representing the relationship between objects in a virtual space by generating hierarchical structure data and assigning the selected object elements to a group in the hierarchical structure It can be said that a system characterized by having a means for providing is provided.

  According to such a configuration, an existing CAD system is obtained by selecting and cutting out a point group in a specific range as an object from the data of the point group obtained by measuring the real space, and arranging it in a hierarchical structure. It is possible to obtain data that is handled in the same way as the shape data created by.

  Here, the means for generating the hierarchical structure data includes, for each object element belonging to the group of the hierarchical structure, in addition to the arrangement information, attribute information including a name, position information in the virtual space, display / non-display It is preferable that some or all of the display state and display color information can be set. According to another embodiment, the system further includes a mixed output for outputting the object element obtained from the shape data and the object element including the point group in an intermediate format for storing drawing information. It has a file output means.

  According to a second main aspect of the present invention, there is provided a method for displaying and operating a two-dimensional or three-dimensional object element executed by a computer, wherein the computer is obtained by measuring a real space. Displaying the point group in a virtual space represented on the output device, and selecting a part or all of the point group displayed on the output device as a virtual object element, and The computer arranges an object element composed of two-dimensional or three-dimensional shape data in a virtual space represented on an output device together with the object element composed of the point group, and the computer stores the hierarchical structure data. The hierarchical structure data is generated by assigning an object element selected from the point group or an object element obtained from the shape data to each group in the same hierarchical structure data. Method characterized by comprising the step of recording the location information of the object element, respectively, it is provided.

  Furthermore, according to a third main aspect of the present invention, there is provided a computer software program for displaying and operating a two-dimensional or three-dimensional object element, wherein a point cloud obtained by measuring a real space is stored in a computer. A step of displaying in the virtual space represented on the output device, a step of selecting part or all of the point cloud displayed on the output device as virtual object elements, and each group in the same hierarchical structure data And recording the arrangement information of the object elements in the hierarchical structure data by causing the object elements selected from the point group or the object elements obtained from the shape data to belong to the computer. A software program is provided.

(Drawing data creation method 1)
The drawing data creation method according to the present embodiment includes the above-described system 1, that is, a first means for displaying a point cloud obtained by measuring a real space in a virtual space represented on the output device, and a display on the output device. A second means for selecting a part or all of the set of point groups as virtual object elements, and an object element composed of two-dimensional or three-dimensional shape data is expressed on the output device together with the object element composed of the point group. A third means arranged in the virtual space, and generating hierarchical structure data, and by attaching an object element selected from a point cloud or an object element obtained from shape data to each group in the same hierarchical structure data, The fourth means for recording the arrangement information of each object element in the hierarchical structure data and the movement, copying, pasting, cutting, or deletion of the object element displayed in the virtual space according to the user input. And a system for displaying and manipulating two-dimensional or three-dimensional object data, which includes editing means for executing the division and reflecting the execution result in the hierarchical structure data.

  In addition, the system may include a conversion unit that converts the measured point group or the point group edited by the editing unit into drawing data (data that can be converted into CAD data or CAD data). The data that can be converted into CAD data includes point cloud data. The conversion means can convert the point cloud data into, for example, polygon data, mesh data, or CAD data. Further, the editing means is a means for demonstrating a function (editing function) provided in a general computer, and is a means that enables copying, pasting (paste), cutting, deleting, moving or the like of a selection target, A well-known thing can be utilized. The editing result is reflected and recorded on the hierarchical structure data.

  In the drawing data creation method of the present embodiment, as shown in FIG. 14, the first means displays a point cloud of the object obtained by measuring the object in the virtual space in response to a user input. A display step S1, a point group selection step S2 in which the second means selects a part of the point cloud of the object displayed on the output device as a virtual object element in response to a user input; In response to the input, the editing unit performs copying or cutting on the object element selected in the point group selection step, and the editing unit pastes or pastes depending on the user input. By executing the movement, the placement step S4 for placing the copied object element in the virtual space, and the conversion means converts the point cloud after the placement step S4 into drawing data in accordance with the user input. Conversion step S5. In the placement step S4, the object element copied or duplicated in the duplication step S3 is displayed in the virtual space (just before the placement) so that a shape different from the point cloud obtained by measuring the real space is displayed. It is arranged at a position continuous with the point cloud displayed on the screen. The consecutive positions can be paraphrased as, for example, adjacent positions, connected positions, or positions in contact with each other. By arranging the copied object elements (data) so as to be connected to the displayed object elements, the edited data is expressed as one object or a series of scenery.

Example 1
The object of Example 1 is a three-dimensional member (here, a pipe) having a longitudinal portion Z1 extending in a predetermined direction, as shown in FIG. The predetermined direction means the longitudinal direction of the longitudinal portion Z1. Here, in the arranging step S4, the three-dimensional member in which the length in the predetermined direction of the longitudinal portion Z1 is larger than the three-dimensional member X displayed based on the measured point cloud data itself by performing pasting or pasting and moving. Y is displayed in the virtual space. That is, the three-dimensional member Y in which the longitudinal part Z1 is extended is displayed. In this case, for example, a part of the longitudinal portion Z1 is cut out (copied and deleted), and the distance between two divided point group groups (which can be said to be an object element or a continuous lump) is the data on the screen. It is created by pasting (pasting) the copied data so that it is moved to be larger and is continuous with the divided point cloud.

  In summary, in the drawing data creation method of the first embodiment, the object is a three-dimensional member having a longitudinal portion extending in a predetermined direction. Is cut out from the point cloud, and the point cloud is divided into two point cloud groups. In the placement step S4, the editing means performs movement on at least one of the two point cloud groups in response to a user input. The three-dimensional member Y is displayed in the virtual space in which the distance between the point group groups is increased, and the length of the longitudinal portion Z1 in the predetermined direction is larger than the three-dimensional member X displayed based on the measured point group itself. The pasting or pasting and moving is executed.

  Also, as shown in FIG. 16, the same editing operation can be performed with another component. The drawing data creation method can also be described as follows with reference to FIG. That is, in the drawing data creation method, in response to a user input, the first means displays a point cloud of the object obtained by measuring the object in the virtual space, and in response to the user input. The second means selects a part of the point cloud of the object displayed on the output device as a virtual object element, and in response to the user input, the editing means The moving means (dividing process) for moving the object element selected in the first point group selecting process away from the unselected object element, and the second means on the output device in response to a user input According to the second point group selection step of selecting a part different from the portion selected in the first point group selection step of the point cloud of the target object displayed as a virtual object element, according to the user input, The editing means copies the object elements selected in the second point group selection process. In the replication process, the editing means performs pasting or pasting and moving in accordance with the user's input between the object elements separated by the moving process in the virtual space. Placing the copied object element. In the placement step, the object element copied in the duplication step is placed at a position that is continuous with the point group displayed in the virtual space.

  As shown in FIG. 17, a part of the object part of the copied longitudinal portion is finally pasted once or a plurality of times (three times in the figure) by “paste” or “paste and move”. Specifically, separated object elements are connected to each other, and one object (here, an industrial product) extended in the longitudinal direction is expressed. As described above, according to the present embodiment, CAD data can be easily edited.

(Example 2)
In the second embodiment, contrary to the first embodiment, the longitudinal portion Z1 is shortened as shown in FIG. Specifically, as shown in FIG. 19, the drawing data creation method of the second embodiment is a method using the system 1, and includes the display step S1, the point group selection step S2, and user input. In response, the editing unit deletes the object element selected in the point group selection step, and the editing unit moves to the point group after the deletion step in response to a user input. In the deletion step S3a, deletion is performed so as to divide the point group into two point group groups, and in the movement step S4a, movement is performed so as to connect the two point group groups. Is executed.

Example 3
The object of the third embodiment is a real space including a structure. In the drawing data creation method of the third embodiment, as shown in FIG. 20, the object selected by the editing means in the point group selection step S2 between the point group selection step S2 and the duplication step S3 according to the user's input. A deletion step S301 for deleting an element and a part of a point group other than the object element deleted in the deletion step S21 are selected as a virtual second object element in accordance with a user input. A two-point group selection step S302 is included. In the duplication step S3, the editing unit copies the second object element selected in the second point group selection step S22 in response to the user input. In the arrangement step S4, in response to the user input, The object element copied in the duplication step S3 is pasted or pasted and moved so as to fill the position of the object element deleted in the deletion step S301, that is, the blank portion formed in the deletion step S301.

  For example, as shown in FIG. 21, a part of a point cloud around a structure (here a bridge) (here, a part of a lawn) is selected and copied, and a blank part formed by deleting the structure is used. Paste the copied point cloud data. Thereby, the space after removing the structure is expressed as drawing data. Further, as shown in FIG. 22, according to the third embodiment, it is possible to delete a structure and use peripheral point cloud data (selection and copying) to fill the deleted portion.

(Drawing data creation method 2)
Further, another drawing data creation method using the system of this embodiment is as follows. That is, another drawing data creation method is a method using the above-described system 1, and as shown in FIG. 23, the first means is obtained by measuring the real space in response to a user input. A display step S901 for displaying the group in the virtual space, and a point group selection step in which the second means selects a part of the point group displayed on the output device as a virtual object element in response to a user input. In step S902, in response to a user input, the editing unit cuts out the first point group that is the point group selected in the point group selection step S902. In response to the user input, the conversion unit A first conversion step S904 for converting the second point cloud group, which is a point cloud after the cutting step S903, into black and white drawing data, and the conversion means converts the first point cloud group into the first point cloud in response to a user input. The color information that the group has On the drawing data created in the first conversion step S904, the second conversion step S905 for converting the drawing data into the drawing data, and the editing means performs pasting or pasting and moving according to the user's input. An arrangement step S906 in which the drawing data created in the second conversion step S905 is arranged at the arrangement position at the time of measurement of the first point group.

  According to this method, for example, as shown in FIG. 24, in CAD data, for example, a part of a factory, such as equipment in a factory, where the arrangement status or the like is to be confirmed with high accuracy is expressed in color. Can be represented. Black and white data has a smaller data amount (for example, about 60%) than color data, and the entire data amount can be reduced while suppressing a decrease in display accuracy (visibility).

(Other)
In the first to third embodiments, only the point cloud is selected and cut out from the displayed shape data, and the drawing data is compared with the data of only the point cloud (another data file in which only the point cloud is pasted). You may perform each process of a creation method. In addition, this method may be executed in a state where only the measured point cloud is read by the system and only the point cloud is displayed and recorded. In the drawing of the above embodiment, only the point cloud is displayed / edited. In the drawing data creation methods 1 and 2, it is executed for data of only point clouds (for example, data obtained by measurement or selected and cut), but shape data other than point clouds are arranged in the virtual space. Can be executed even in the Moreover, as a conversion means, it is a means to convert a point group into CAD data, A well-known thing can be utilized. Point cloud and point cloud data have the same meaning. The CAD data can also be said to be a CAD file. The system 1 may be a personal computer in which a computer software program (a program described in Japanese Patent Application No. 2015-1801187) that can execute the above functions on a computer is installed. Input (operation) by the user can be performed with a mouse or a keyboard. The present invention can also be said to be a method of adjusting the length of the longitudinal portion and a method of filling a blank portion in drawing data based on a point cloud.

DESCRIPTION OF SYMBOLS 1 ... Shape and point cloud data mixed utilization system, 2 ... Input device, 3 ... Output device,
4 ... CAD system etc. 5 ... CAD file 6 ... Spatial scanner etc.
7 ... Point cloud text file,
8 ... Shape data / point cloud data / hierarchical data mixed file,
10 ... CPU, 11 ... RAM, 12 ... I / O interface,
13 ... Bus, 14 ... Data storage, 15 ... Program storage,
17 ... CAD file processing unit, 18 ... Point cloud text file processing unit,
19 to 21 ... display editing unit, 19 ... shape data display editing unit,
20 ... Point cloud data display editing section, 21 ... Hierarchical data display editing section,
22 ... shape data / point cloud data display section, 23 ... hierarchical data display section,
24 ... Mixed file input / output unit, 26 ... CAD hierarchical structure data,
27.28 ... data, 27 ... shape data, 28 ... point cloud data,
29 ... Hierarchical structure data, 33 ... Point cloud range designation part,
34 ... Cut / Delete / Copy / Integration

Claims (6)

A first means for displaying a point cloud obtained by measuring the real space in a virtual space represented on the output device;
A second means for selecting a part or all of the point group displayed on the output device as a virtual object element;
A third means for arranging an object element composed of two-dimensional or three-dimensional shape data in a virtual space expressed on an output device together with the object element composed of the point group;
Hierarchical structure data is generated, and by assigning an object element selected from the point group or an object element obtained from the shape data to each group in the same hierarchical structure data, the hierarchical structure data A fourth means for recording arrangement information;
Editing means for executing movement, copying, pasting, cutting, or deletion of an object element displayed in the virtual space according to a user input, and reflecting the execution result in the hierarchical structure data; ,
A method for creating drawing data which is data that can be converted into CAD data or CAD data using a system for displaying and operating two-dimensional or three-dimensional object data having
In response to user input, the first means displays a point cloud of the object obtained by measuring the object in the virtual space; and
In response to a user input, the second means selects a part of the point cloud of the object displayed on the output device as a virtual object element; and
In accordance with a user input, the editing unit performs a copy process or a copy process for executing a copy or cut on the object element selected in the point group selection process;
In response to a user input, the editing unit performs pasting or pasting and moving to place the copied object element in the virtual space; and
Including
In the placement step, the object elements copied or cut out in the duplication step are displayed in the virtual space so that a shape different from the point cloud of the object obtained by measuring the real space is displayed. A drawing data creation method arranged at a position connected to a point cloud. The object is a three-dimensional member having a longitudinal portion extending in a predetermined direction,
In the duplication step, in response to a user input, the editing unit cuts out the object element selected in the point group selection step from the point group, and divides the point group into two point group groups,
In the arrangement step, the editing unit executes movement with respect to at least one of the two point group groups to increase a separation distance between the point group groups in accordance with a user input, and Pasting or pasting and moving is performed so that the three-dimensional member whose length in the predetermined direction is larger than the three-dimensional member displayed based on the measured point cloud itself is displayed in the virtual space. The drawing data creation method according to claim 1. Between the point group selection step and the duplication step, in response to a user input, the editing unit deletes the object element selected in the point group selection step, and in response to a user input, Including a second point group selection step of selecting a part of the point group other than the object element deleted in the deletion step as a virtual second object element;
In the duplication step, the editing means copies the second object element selected in the second point group selection step in response to a user input,
2. The pasting or pasting and moving of the object element copied in the duplication step is executed in the placement step so as to fill in the blank portion formed in the deletion step in response to a user input. Drawing data creation method described in 1. A first means for displaying a point cloud obtained by measuring the real space in a virtual space represented on the output device;
A second means for selecting a part or all of the point group displayed on the output device as a virtual object element;
A third means for displaying an object element composed of two-dimensional or three-dimensional shape data together with the object element composed of the point group in a virtual space represented on an output device;
Hierarchical structure data is generated, and by assigning an object element selected from the point group or an object element obtained from the shape data to each group in the same hierarchical structure data, the hierarchical structure data A fourth means for recording arrangement information;
Editing means for executing movement, copying, pasting, cutting, or deletion of an object element displayed in the virtual space according to a user input, and reflecting the execution result in the hierarchical structure data; ,
Conversion means for converting the point group into CAD data or drawing data which is data that can be converted into CAD data;
A drawing data creation method using a system for displaying and operating two-dimensional or three-dimensional object data having
In response to a user input, the first means displays the point cloud in the virtual space; and
In accordance with a user input, the second means selects a part of the point group displayed on the output device as a virtual object element;
In response to a user input, the editing means cuts out a first point cloud group that is a point cloud selected in the point cloud selection step; and
In response to a user input, the conversion means converts a second point cloud group, which is a point cloud after the cutting step, into black and white drawing data; and
A second conversion step in which the conversion means converts the first point cloud group into drawing data in a form reflecting color information of the first point cloud group in response to a user input;
In response to a user input, the editing means executes pasting or pasting and moving to the arrangement position at the time of measurement of the first point cloud group on the drawing data created in the first conversion step. An arrangement step of arranging the drawing data created in the second conversion step;
Drawing data creation method including A first means for displaying a point cloud obtained by measuring the real space in a virtual space represented on the output device;
A second means for selecting a part or all of the point group displayed on the output device as a virtual object element;
A third means for displaying an object element composed of two-dimensional or three-dimensional shape data together with the object element composed of the point group in a virtual space represented on an output device;
Hierarchical structure data is generated, and by assigning an object element selected from the point group or an object element obtained from the shape data to each group in the same hierarchical structure data, the hierarchical structure data A fourth means for recording arrangement information;
Editing means for executing movement, copying, pasting, cutting, or deletion of an object element displayed in the virtual space according to a user input, and reflecting the execution result in the hierarchical structure data; ,
A method for creating drawing data which is data that can be converted into CAD data or CAD data using a system for displaying and operating two-dimensional or three-dimensional object data having
In response to user input, the first means displays a point cloud of the object obtained by measuring the object in the virtual space; and
In response to a user input, the second means selects a part of the point cloud of the object displayed on the output device as a virtual object element; and
In response to a user input, the editing unit performs a deletion step of deleting the object elements selected in the point group selection step;
In response to a user input, the editing unit performs a movement process on the point cloud after the deletion process;
Including
In the deletion step, deletion is performed so as to divide the point cloud into two point cloud groups,
In the moving step, drawing data creation method in which movement is performed so as to connect the two point group groups. A first means for displaying a point cloud obtained by measuring the real space in a virtual space represented on the output device;
A second means for selecting a part or all of the point group displayed on the output device as a virtual object element;
A third means for displaying an object element composed of two-dimensional or three-dimensional shape data together with the object element composed of the point group in a virtual space represented on an output device;
Hierarchical structure data is generated, and by assigning an object element selected from the point group or an object element obtained from the shape data to each group in the same hierarchical structure data, the hierarchical structure data A fourth means for recording arrangement information;
Editing means for executing movement, copying, pasting, cutting, or deletion of an object element displayed in the virtual space according to a user input, and reflecting the execution result in the hierarchical structure data; ,
A method for creating drawing data which is data that can be converted into CAD data or CAD data using a system for displaying and operating two-dimensional or three-dimensional object data having
In response to user input, the first means displays a point cloud of the object obtained by measuring the object in the virtual space; and
A first point group selection step in which the second means selects a part of the point group of the object displayed on the output device as a virtual object element in response to a user input;
In response to a user input, the editing unit moves the object element selected in the first point group selection step so as to move away from the unselected object element;
In response to a user input, the second means applies a virtual object to a part of the point cloud of the object displayed on the output device that is different from the part selected in the first point cloud selection process. A second point group sorting step for sorting as an element;
In response to a user input, the editing unit performs a copying process for executing copying on the object elements selected in the second point group selecting process;
In response to a user input, the editing means performs pasting or pasting and moving to copy between the object elements separated by the moving step in the virtual space in the duplication step. An arrangement step of arranging the object elements,
Including
In the arrangement step, the drawing data creation method in which the object element copied in the duplication step is arranged at a position continuous with the point group displayed in the virtual space.