KR100458543B1 - Comparing method of 2d cad file using graphic type - Google Patents

Abstract

The present invention is a result of the modification and supplementation between the two files while simultaneously viewing the two files to be compared and compared to the method of reviewing and reflecting the file data modifications in the existing 2D CAD file view 1: 1 To show the user at a glance. To this end, when the user selects two files to be compared and reflects the file comparison, three screens appear on the screen.

The original files are displayed on the first and second screens, and data modifications and additions of the two files are displayed on the third screen. In addition, even if the file is not the same type, this method uses a graphic comparison method so that it can be easily compared.

Description

2D CAD File Comparison Method by Graphic Method {COMPARING METHOD OF 2D CAD FILE USING GRAPHIC TYPE}

The present invention relates to a file comparison method, which is a method for comparing 2D CAD files in a CAD viewer, and not only to view two files at the same time but also to display the comparison result according to a method selected by a user through different screens. .

The CAD viewer program is a program for kenning (drawing) a drawing created by a computer aided design (CAD) program in various ways. Examples of conventional CAD viewer programs include Volo View of AutoCAD (AutoCAD).

First, the 1: 1 data comparison method of existing 2D CAD files is defined as follows.

1) All elements of the first file are displayed on the screen. At this time, the elements are classified and stored in its own DB (database).

2) All elements of the second file are displayed on the screen. At this time, the elements are classified and stored in its own DB.

3) In order to show the comparison result on the screen, the following work is performed with the data of 1) and 2) work.

First, all data of the first file is displayed on the screen. Before drawing all the data of the second file on the screen, compare all the elements of the second file stored in the DB with all the elements of the first file through a certain iterative routine (characters of each element (element type, element name) If the same element is already displayed on the screen, draw it invisibly. Conversely, if an element is missing from the first file, it will appear on the screen.

The above method is a method for comparing 2D files in CAD Viewer, and each method (1.Show all elements, 2.Show deleted elements, 3.Added elements when you want to display the file comparison result in the way you want) If you apply as shown), since all the data are compared and displayed on the screen at that time, the data comparison time is significantly increased accordingly.

In addition, the purpose of using the existing CAD file was to allow users to read the drawings and work with the data. However, these minute data corrections are frequently made since arbitrary drawings are often modified and supplemented through various processes. However, if the supplement is confirmed using the existing 1: 1 data comparison method, the difficulty of the verification work is not burdened with time investment by water.

In addition, even when comparing files of different formats that have undergone different processes, the existing 1: 1 data comparison method has an inefficient iteration.

And if you compare files with large file size, the comparison time will increase drastically.

The present invention has been made to solve the above problems of the prior art, unlike the conventional 2D CAD file comparison method of 1: 1 data comparison, 2D CAD file is faster than conventional data comparison method using a graphic method It is an object to provide a comparison method.

In addition, an object of the present invention is to provide a method for comparing 2D CAD files by a graphic method for quickly and simply checking even a minute difference in frequently modified or supplemented matters through various processes.

Another object of the present invention is to provide a method for comparing 2D CAD files by an efficient and fast graphic method using graphics in comparing files of different formats through various processes.

FIG. 1A illustrates an example of displaying one of two 2D CAD files to be compared on a screen.

FIG. 1B illustrates an example of displaying another one of two 2D CAD files to be compared on a screen.

1C shows an example of displaying all elements of the compared 2D CAD files on the screen.

2 is a flowchart showing each process of presenting all elements in the 2D CAD file comparison method of the present invention.

3 illustrates an example of displaying all elements on the screen in the 2D CAD file comparison method of the present invention.

4A illustrates an example of displaying one of two 2D CAD files to be compared on a screen.

4B shows an example of displaying deleted elements of the compared 2D CAD files on the screen.

5 is a flowchart showing each process of indicating deleted elements in the 2D CAD file comparison method of the present invention.

FIG. 6 illustrates an example of displaying deleted elements on a screen in the 2D CAD file comparison method of the present invention.

7A illustrates an example of displaying one of two 2D CAD files to be compared on a screen.

7B shows an example of displaying the added elements of the two compared 2D CAD files on the screen.

FIG. 8 is a flowchart illustrating each process of displaying an added element in the 2D CAD file comparison method of the present invention.

FIG. 9 illustrates an example of displaying an added element indicator in a 2D CAD file comparison method of the present invention on a screen.

The present invention provides a method for providing a 2D CAD file comparison in a graphical manner; A first step of opening the first file and displaying the first file in the virtual memory; A second step of opening the second file and displaying the second file in the virtual memory; And a third process of displaying all elements represented in the virtual memory on a screen.

The first process may include setting an element of the first file to a first color, wherein the first color is red.

The second process may include setting elements of the second file to a second color, and setting the second color to light blue.

In addition, the third process may include: a third process of displaying an original element of the first file in the set first color on one side of a screen; A third step of displaying the original element of the second file in the set second color on the other side of the screen; Step 3-3 of comparing the elements of the first file and the elements of the second file on the screen of the remaining part; Provided to include a.

In addition, the step 3-3 may include setting a portion where a graphic overlaps on the display screen of the first file and the second file to a white color to be displayed on the screen by using a function. And displaying a window displaying a character string "All elements" on one side of the screen. The function preferably uses an OpenGL graphics library function (glEnable (GL_BLEND)) that can set the Color Mixing effect.

In addition, the process of 3-3 may display the first file element on the screen in the set first color and set the element of the second file to the same color as the background color to set the element of the second file in the first color. And displaying the file overlapping on the displayed screen, and displaying a window displaying a string of "deleted elements" on one side of the screen.

In addition, in the third-3 process, the second file element is displayed on the screen in the set second color, and the first file element is set to the same color as the background color to set the element of the first file. And displaying the file as overlapping on the displayed screen, and displaying a window displaying a string of "added elements" on one side of the screen.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art. If described in detail with reference to the accompanying drawings the configuration and operation of the present invention.

FIG. 1A illustrates an example in which the first file is set to red and displayed on a screen.

FIG. 1B illustrates an example of displaying the second file on a screen by setting the second file to a light blue color.

The process of displaying the first file and the second file on the screen in the set color is as follows.

<Color Table Variable>

VD_COLOR_RED; // Select the color of elements in red (can be changed)

VD_COLOR_CYAN; // Select the color of the elements in sky blue (can be changed)

VD_COLOR_BACKGROUND; // set background color (can be changed)

<Leading variable>

COLORREF bkColor; // Display screen color

VcFile * pFirstFile; // pointer to the first file (including all elements)

pFirstFile-> m_stColor; // colors of the elements of the first files

VcFile * pSecondFile; // pointer to the second file (including all elements)

pSecondFile-> m_stColor; // color of elements of the second files

/ * <Normal Draw Routine> * /

/ * Color the elements of the files * /

pFirstFile-> m_stColor = VD_COLOR_RED; // turn all elements of the first file to red

// Set.

pSecondFile-> m_stColor = VD_COLOR_CYAN; // all elements of the second file are light blue

// set to.

/ * Draw function call for each file (draws all elements with a preselected color * /

pFirstFile-> Draw (); // Draw the first file in red on the screen.

pSecondFile-> Draw (); // Draw the second file in light blue on the screen.

Figure 1c is a graphical method of comparing the 2D CAD file includes a common part of the two 2D CAD file in which the graphic overlapping part of the first file and the second file is set to white due to the graphic function (OpenGL) An example of displaying all elements of the first file and the second file on the screen is shown.

The function used is glBlendFunc (GL_ONE, GL_ONE) which can set the Color Mixing effect among OpenGL graphic library functions supported by the Windows operating system. If you set the function with this option, the overlapping color is white.

OpenGL is the computer industry's standard application program interface (API) for defining two- and three-dimensional graphic images. The OpenGL graphics adapter makes it easy to write applications that do the same on any operating system.

OpenGL defines a set of commands or functions that are executed immediately, each of which allows you to draw a picture or make special effects. OpenGL is independent of the window characteristics of each operating system, but provides special access routines by operating system to make OpenGL work well within the window environment of each system.

OpenGL comes with a number of built-in features that can be called through the API, including hidden face removal, transparency, antialiasing, texture representation, pixel manipulation, modeling for transformations, and atmospheric effects ( Functions such as fog, smoke and haze).

The process of setting the common part to white using the OpenGL function is as follows.

pFirstFile-> m_stColor = VD_COLOR_RED; // select the color of the first file as red

pFirstFile-> Draw (); // Draw the first file on the screen in the selected color.

pSecondFile-> m_stColor = VD_COLOR_CYAN; // color of second file to CYAN color

//selection

/ * Setup and use OpenGL functions on Windows * /

glEnable (GL_BLEND); // specify to use the Mixing effect

glBlendFunc (GL_ONE, GL_ONE); // If this option is selected with OpenGL function,

// Colors are white due to the mixing effect.

pSecondFile-> Draw (); // Draw the second file on the screen in the selected color.

// where the first file overlaps with the mixing effect

// selected, so if it overlaps, it will appear white.

glDisable (GL_BLEND); // Turn off the Mixing effect.

2 is a flowchart illustrating a process of showing all elements in a 2D CAD file comparison method according to the present invention. Each process of the present invention will be described in detail with reference to the drawings.

First, a 2D CAD first file to be compared is opened from a user, and all elements of the first file are set to red and stored in the virtual memory (S210).

Next, a 2D CAD file to be compared with the user is opened from the user, and all elements of the second file are set to light blue and stored in the virtual memory (S220).

Next, the common elements of the first file and the second file are stored in the virtual memory by using the OpenGl (Graphic Library Function) function so that the overlapping part of the graphic is set to white (S230).

Next, all elements including the common part of the first file and the second file and the first file and the second file stored in the virtual memory are displayed on the screen (S250).

The above processes are performed in the virtual memory (S240), the speed is greatly improved compared to the conventional method (comparison-> draw on the screen-> compare-> draw on the screen ...).

3 illustrates an example in which all elements are displayed on a screen in the 2D CAD file comparison method according to the present invention. The upper left 3-1 screen is the original of the first file displayed in the set red color, and the lower left 3-3 screen is the original of the second file displayed in the set sky blue. The screen on the right (3-3) is a result screen showing all the elements of the two 2D CAD file comparison method, the elements shown in white represent the common elements of the first file and the second file, the elements corresponding to the light blue Elements not present in the first file but present in the second file are shown. The elements corresponding to red represent elements that exist in the first file but do not exist in the second file. One side 3-4 of the right side of the screen further displays a display window indicating “all elements” of each comparison method.

4A illustrates an example in which the first file is set to red and displayed on a screen.

4B illustrates an example of displaying deleted elements in the file graphic comparison method. Portions common to each other of the first file and the second file are set to a background color, thereby obtaining an effect that is not actually seen by the eyes. Therefore, only the element of the first file deleted in the result screen is displayed in red. That is, when the second file is set to the same color as the background color, the common part of the first file and the second file and all the elements of the second file are displayed on the screen as the background color and are hidden on the screen. The result is that only deleted elements that belong are displayed in red.

The method of displaying the common part in the background color is a method in which all elements of the second file are set to the same color as the screen background color and then wrapped and displayed on the screen on which FIG. 4A is drawn. As a result, the common parts of the first file and the second file are visually hidden on the screen in the same color as the background color.

The process of displaying only the deleted elements in setting the common part of the 2D CAD files and the second file to the same color as the background color and comparing the 2D CAD files is as follows.

/ * Show deleted elements (based on the first file: indicates an element that exists in the first file but does not exist in the second file) * /

pFirstFile-> m_stColor = VD_COLOR_RED; // every element in the first file

// selected red.

pFirstFile-> Draw (); // Draw all the elements of the first file in red.

pSecondFile-> m_stColor = VD_COLOR_BACKGROUND; // same color as background

// Select all elements of the second file.

pSecondFile-> Draw (); // You can see the overlap effect as the background color

// Only deleted elements of the first file appear in red.

5 is a flowchart illustrating a process of representing deleted elements in a 2D CAD file comparison method according to the present invention. Each process of the present invention will be described in detail with reference to the drawings.

First, a user receives a 2D CAD first file to be compared from a user and opens it, and sets all elements of the first file to red and stores them in the virtual memory (S510).

Next, another 2D CAD second file to be compared is opened from the user, and all elements of the second file are set to the same color as the background color and stored in the virtual memory (S520).

Next, the element deleted after the comparison between the first file and the second file and the first file and the second file stored in the virtual memory is displayed on the screen (S540).

The above processes are performed in the virtual memory (S530), the speed is greatly improved compared to the conventional method (comparison-> draw on the screen-> compare-> draw on the screen ...).

6 illustrates an example in which deleted elements are displayed on a screen in the 2D CAD file comparison method according to the present invention. The upper left 6-1 screen is the original of the first file displayed in the set red color, and the lower left 6-2 screen is the original of the second file displayed in the set sky blue. The screen on the right (6-3) is a result screen showing the deleted elements of the 2D CAD file comparison method by the graphical method, the elements corresponding to the red elements present in the first file but not present in the second file It is shown. The common part of the second file, the first file, and the second file is displayed on the screen in the same color as the background color, and is displayed to be hidden on the screen background. One side 6-4 of the right side of the screen further displays a display window indicating “deleted element” in the 2D CAD file comparison method by a graphic method.

7A illustrates an example of displaying the second file on a screen by setting the second file to a light blue color.

7B illustrates an example of displaying an added element of the file graphic comparison method. Portions common to each other of the first file and the second file may be set as a background color to obtain an effect that is not actually visible to the eyes. Therefore, only the elements of the second file added to the result screen appear on the screen in light blue. That is, when the first file is set to the same color as the background color, the common part of the first file and the second file and all elements of the first file are displayed on the screen as the background color and are hidden on the screen. Only the added elements that belong are the result of displaying in light blue.

The method of displaying the common part in the background color is a method in which all elements of the first file are set to the same color as the screen background color and then wrapped and displayed on the screen in which FIG. 7B is drawn. As a result, the common parts of the first file and the second file are visually hidden on the screen in the same color as the background color.

The process of setting the common part of the 2D CAD files and the first file to the same color as the background color and showing only the added elements in the comparison of the 2D CAD files is as follows.

/ * Show added elements (based on the first file: indicates an element that exists in the second file but does not exist in the first file) * /

pSecondFile-> m_stColor = VD_COLOR_CYAN; // every element in the second file

// selected as light blue.

pSecondFile-> Draw (); // Draw all the elements of the second file in light blue.

pFirstFile-> m_stColor = VD_COLOR_BACKGROUND; // same color as background

// Select all elements of the first file.

pFirstFile-> Draw (); // You can see the overlap effect as the background color

// Only added elements of the second file appear in light blue.

8 is a flowchart illustrating a process of showing an added element in a 2D CAD file comparison method according to the present invention. Each process of the present invention will be described in detail with reference to the drawings.

First, a user receives a 2D CAD first file to be compared from a user, opens, sets all the elements of the first file to the same color as the background color, and stores the same in a virtual memory (S810).

Next, another 2D CAD second file to be compared is received from the user and opened, and all elements of the second file are set to light blue and stored in the virtual memory (S820).

Next, the element added after the comparison of the first file and the second file and the first file and the second file stored in the virtual memory is displayed on the screen (S840).

The above processes are performed in the virtual memory (S830), the speed is greatly improved compared to the conventional method (comparison-> draw on the screen-> compare-> draw on the screen ...).

FIG. 9 illustrates an example of displaying an added element on a screen in the 2D CAD file comparison method according to the present invention. The upper left 9-1 screen is the original of the first file displayed in the set red color, and the lower left 9-2 screen is the original of the second file displayed in the set sky blue.

The screen on the right (9-3) is a result screen showing the added elements of the 2D CAD file comparison method by the graphical method, the elements corresponding to the light blue color are present in the second file but not present in the first file It is shown. Common parts of the first file, the first file, and the second file are displayed on the screen in the same color as the background color, and are displayed to be hidden on the screen background. One side screen 9-4 of the right side additionally displays a display window indicating “added element” in the 2D CAD file comparison method by a graphic method.

While the present invention has been described with reference to preferred embodiments, it will be understood that this is for the purpose of understanding and not of limitation. In addition, it will be understood that various modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.

According to the configuration of the present invention as described above, unlike the conventional 2D CAD file comparison method of 1: 1 data comparison, due to the comparison method using the graphic method compared with the conventional method 2D CAD file comparison faster than the conventional method It is effective to provide a method.

In addition, the present invention is effective in providing a 2D CAD file comparison method by a graphic method for quickly and simply checking even a minute difference in a frequently modified and supplemented matter through various processes.

In addition, the present invention is effective in providing a method for comparing 2D CAD files by an efficient and fast graphic method in comparing files of different formats through various processes.

Claims (14)

CLAIMS What is claimed is: 1. A method for providing a 2D CAD file comparison by two graphics schemes; A first step of opening the first file and displaying the first file in the virtual memory; A second process of opening the second file and displaying the second file in the virtual memory; And a third step of displaying all the elements represented in the virtual memory on a screen. The method of claim 1, The first process further comprises the step of setting the elements of the first file to the first color. The method of claim 2, And setting the first color to red. The method of claim 1, The second process further comprises setting the elements of the second file to a second color. The method of claim 4, wherein 2D CAD file comparison method using a graphic method, characterized in that the second color is set to light blue. The method of claim 1, The third process may include: a third process of displaying an original element of the first file on the one side of the screen in the set first color; A third step of displaying the original element of the second file in the set second color on the other side of the screen; 3-3 process of comparing the elements of the first file and the elements of the second file on the screen of the remaining part; 2D CAD file comparison method by a graphic method comprising a. The method of claim 6, The 3-3 process may further include displaying all elements of the first file and the second file on the screen in the set first color and the second color. How to compare 2D CAD files. The method of claim 7, wherein And setting a portion where a graphic overlaps on the display screen of the first file and the second file to white by using a function so that the first file and the second file are displayed on the overlapped screen. 2D CAD file comparison method by the graphic method provided. The method of claim 8, The method further comprises using an OpenGL graphics library function (glEnable (GL_BLEND)) that can set the Color Mixing effect. The method of claim 8, And displaying a window displaying a string "All Elements" on one side of the screen. The method of claim 6, In step 3-3, the first file element is displayed on the screen in the set first color, and the elements of the second file are set to the same color as the background color by setting the elements of the second file to the same color. A method of comparing 2D CAD files by a graphic method, further comprising the step of displaying the displayed screen by overlapping the displayed screen. The method of claim 11, And displaying a window displaying a character string of "deleted element" on one side of the screen. The method of claim 6, In step 3-3, the second file element is displayed on the screen in the set second color, and the first file element is set to the same color as the background color to display the element of the first file. 2D CAD file comparison method by a graphic method, characterized in that it further comprises the step of displaying by overlapping on the screen. The method of claim 13, And displaying a window displaying a character string "added element" on one side of the screen.