JPH0262678A - Drawing controller - Google Patents

Abstract

PURPOSE:To control a drawing in consideration of a balance between function and economical properties by controlling only some of drawing component elements as the graphic data and displaying this data after synthesization with the picture data. CONSTITUTION:A graphic data display part 4 takes the graphic data out of a graphic data file 7 automatically or by an instruction of an operator. Then the part 4 uses the drawing number showing a designated drawing A as a key and retrieves and takes the drawing frame coordinates of the drawing A out of a drawing frame file 6 and calculates the coordinate transformation coefficients between a drawing coordinate system and a pipe surface coordinate system based on the drawing coordinate values F1, F2, F3 and F4 and the pipe surface coordinate values F1<1>, F2<2>, F3<1> and F4<1>. Then the coordinate values P1, P2, P3 are converted into the coordinate values P1'', P2'', P3'' respectively based on the coordinate transformation coefficients and outputted to a display device 9. The device 9 superposes the input values P1'', P2'', P3'' onto the displayed picture data. Thus the picture data is synthesized with the graphic data.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a drawing management device, and more particularly to a drawing management device that manages drawing constituent elements constituting a drawing as graphic data and image data and displays them in a composite manner.

[Conventional technology]

Digitization of drawings can be roughly divided into digitization into graphic data (graphic data) and digitization into image data (image data).

By converting it into graphic data, you can recognize the individual figures that are the drawing components of the drawing. Therefore, the effects of using graphic data are great, such as being able to search for attribute data of a drawing component by specifying the drawing component, but the cost required to convert it into graphic data is large.

On the other hand, when converting into image data, the cost required for converting into image data is small, but it is not possible to link drawing components and attribute data in the drawing.

Among the drawing constituent elements included in a drawing, there are drawing constituent elements that require a relationship with attribute data, and drawing constituent elements that do not require individual recognition and only require that their image be restored. It is desirable to convert the former into graphic data, and the latter to convert into image data from the viewpoint of cost.

Conventionally, in this type of drawing management apparatus, graphic data and image data were handled separately, and drawing components of one drawing could only be handled in one of the formats. Therefore, if you want to recognize individual drawing components, all of the drawing components of the drawing are handled as graphic data (CAD system, etc.), and if you only need to recognize each drawing, the entire drawing is handled as image data. (electronic filing system, etc.).

[Problem to be solved by the invention]

In the above-mentioned conventional drawing management device, drawings are managed in the form of either figure data or image data, so only the drawing components in one drawing that require a relational search with attribute data are managed. It is not possible to manage the entire drawing as graphic data and display it in combination with image data, which is managed separately. The disadvantage is that it cannot be managed.

In view of the above-mentioned points, an object of the present invention is to manage only some of the drawing constituent elements of a drawing as graphic data and to display them in combination with image data, thereby taking into consideration the balance between functionality and economy. An object of the present invention is to provide a drawing management device that can manage drawings.

[Means to solve the problem]

The drawing management device of the present invention includes a graphic data input unit for converting and inputting drawing constituent elements in a drawing into graphic data and inputting the drawing frame coordinates of the drawing, and storing the graphic data converted and input by the graphic data input unit. An image data input section that converts and inputs drawings into image data, an image data file that stores the image data converted and input by this image data input section, and searches for image data from this image data file. an image data display unit that outputs the image data to the display device; a screen coordinate input unit that inputs the drawing frame coordinates of the image data displayed on the display device; Based on a drawing frame file that stores the drawing frame coordinates input in the figure data input section in pairs, and a coordinate conversion coefficient calculated based on the two types of drawing frame coordinates stored in pairs in this drawing frame file. a graphic data display section that converts the coordinate values of graphic data stored in the graphic data file and outputs the converted coordinate values to the display device; and a display device that displays the combined image data.

[Effect]

In the drawing management device of the present invention, the graphic data input section converts and inputs the drawing components in the drawing into graphic data, and also inputs the drawing frame coordinates of the drawing, and the graphic data file is a graphic data input by the graphic data input section. store data,
The image data input section converts and inputs the drawing into image data, the image data file stores the image data converted and input by the image data input section, and the image data display section searches the image data from the image data file and displays it on the display device. The screen coordinate input section inputs the drawing frame coordinates of the image data displayed on the display device, and the drawing frame file is input with the drawing frame coordinates input by the screen coordinate input section and the figure data input section. The drawing frame coordinates stored in pairs are stored in the drawing frame file, and the figure data display section calculates the coordinate conversion coefficients based on the two types of drawing frame coordinates stored in pairs in the drawing frame file. The coordinate values of the graphic data thus obtained are converted and output to a display device, and the display device synthesizes and displays the image data output by the image data display section and the image data output by the graphic data display section.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a drawing management device according to an embodiment of the present invention. The drawing management device according to this embodiment includes a graphic data input section 1, an image data input section 2, and a screen coordinate system. Input section 3, graphic data display section 4, and image data display section 5
, a drawing frame file 6 , a graphic data file 7 , an image data file 8 , and a display device 9 .

The figure data input unit 1 has a function of inputting drawing frame coordinates (coordinate values of the four corners of the drawing) using a coordinate reading device such as a digitizer and outputting them to a drawing frame file 6, and a figure component that is to be recognized as a figure. Input the coordinate values of a figure such as a point or line as figure data and create a figure data file 7.
The drawing frame coordinates and figure coordinate values can be defined based on any orthogonal coordinate system (drawing coordinate system) that can express all figures in the drawing as coordinate values. shall be carried out.

The image data input unit 2 inputs image data by scanning a drawing with an image reading device such as an image scanner, and outputs the input image data to an image data file 8.

The screen coordinate input unit 3 inputs the drawing frame coordinates (coordinate values of four corners) of the image data displayed on the display device 9 using a pointing device such as a mouse, and outputs it to the drawing frame file 6. Note that the coordinate values of the drawing frame coordinates of the image data are defined based on the screen coordinate system specific to the display device 9.

The graphic data display unit 4 extracts the graphic data of the drawing from the graphic data file 7, performs coordinate transformation for alignment to image data, and then displays it on the display device 9. Coefficients for coordinate conversion are based on two types of drawing frame coordinates stored in pairs in the drawing frame file 6: drawing frame coordinates based on the drawing coordinate system (hereinafter referred to as drawing coordinate values) and management. It is calculated using drawing frame coordinates (hereinafter referred to as pipe surface coordinate values) based on a surface coordinate system.

The image data display section 1 5 extracts the image data of the drawing from the image data file 8 and displays it on the display device 9 .

FIG. 2 is a diagram showing the structure of the drawing frame file 6. As shown in FIG. The drawing frame file 6 stores drawing frame coordinates corresponding to drawing numbers.

The drawing frame coordinates are the drawing coordinate values that are the coordinate values of the four corners (lower left, lower right, upper right, and upper left) of the graphic data input by the graphic data input unit 1, and the image input by the screen coordinate input unit 3. It consists of pairs with tube surface coordinate values, which are the coordinate values of the four corners of the data.

Next, the operation of the drawing management apparatus of this embodiment configured as described above will be explained.

First, an explanation will be given of the operation when managing a matrix having a drawing component that is desired to be recognized as a figure.

For example, three points PL in drawing A shown in FIG.

If the operator wants to recognize P2 and P3 as figures (to store them as figure data), the operator uses a coordinate reading device such as a digitizer to identify the three points PI.

The coordinates of P2 and P3 and the drawing frame coordinates for the drawing are input into the graphic data input section 1.

The figure data input part l is the three points P in the input drawing.
Convert L, P2, and P3 into coordinates (convert into graphic data) based on the drawing coordinate system, and create three points PI.

The coordinate values P+, Pt and l), l of P2 and P3 are stored in the graphic data file 7 together with the drawing number indicating drawing A. In addition, the graphic data input unit 1 similarly converts the drawing frame coordinates of the input drawing A into coordinates, and converts the drawing frame coordinates (!F+
, FZ, F3 and F4 are stored in the drawing frame file 6.

On the other hand, the operator reads image data on the drawing using an image reading device such as an image scanner and inputs the image data into the image data input section 2.

The image data input unit 2 stores the input image data for the drawing in the image data file 8 using the drawing number as an index. At this time, three points PI and P2 are stored as graphic data in the graphic data file 7 by the graphic data input section l.
and F3 are three points P1° of part of the image data of drawing A
, P,′ and P,°.

Next, the image data display section 5 retrieves the image data of drawing A from the image data file 8 and temporarily displays it on the display device 9.

When the image data of drawing A is displayed on the display device 9, the operator uses a pointing device such as a mouse to point to the drawing frame coordinates of the image data of drawing A displayed in the display bag N9. The drawing frame coordinates of the image data are input to the screen coordinate input section 3.

The tube surface coordinate input section 3 inputs the pointed tube surface coordinate value F+''
, F,', )-, +, and Fth' are measured and output to the drawing frame file 6, and as illustrated in FIG. 2, they correspond to the drawing coordinate values F+, Ft, F3, and F4 obtained earlier. and stores it in the drawing frame file 6.

The screen coordinate input unit 3 is a means for obtaining drawing frame coordinates on the screen of the display device 9 necessary for alignment of graphic data with image data, and is used to manage new drawings. used only when

Next, a description will be given of an operation for displaying on the display device 9 a composite display of graphic data and image data for the above-mentioned drawing having drawing constituent elements managed as graphic data.

First, the image data display section 5 is instructed by the operator to
The image data of drawing A is extracted from the image data file 8 and output to the display device 9.

Next, automatically or after an instruction from the operator, the graphic data display unit 4 retrieves the graphic data (coordinate values P+, Pg, and Pi from the graphic data file 7. Search and extract the drawing frame coordinates of drawing A from the drawing frame file 6 using the drawing number indicating the drawn drawing A as a key, and extract the drawing coordinate values F+, Fz, F2, and F4 and the pipe surface coordinate values F, ', F,'' , Fs'' and F, l, calculate the coordinate transformation coefficient between the drawing coordinate system and the pipe plane coordinate system, and convert the coordinates (Up,, pg and ps to l1Hl(ip,") based on the coordinate transformation coefficients.
, pt"h" and "F3" respectively, and display them on the display device 9.
Output to. Note that the well-known Helmert transformation formula is used as the coordinate transformation formula.

When the coordinate values P, ", Pt" and Pi are input, the display device 9 displays the coordinate value P+ on the displayed image data.
", P!" and P," are displayed in a superimposed manner.

As a result, the points P,', Pt° and Pyu as image data are located at the positions P+", Pg" and P, on the display device 9.
”, and the composition of image data and graphic data is completed.

Although this embodiment has been described with reference to point figures as figures to be synthesized, it goes without saying that similar synthesis is possible for line figures as well.

〔Effect of the invention〕

As explained above, the present invention allows drawings to be managed with a high degree of freedom and with a balance between performance and economy by managing drawings in two forms: graphic data and image data. effective.

In other words, the drawing components of the drawing that need to be recognized and attached with attribute data are managed as graphic data.
By managing things that only need to be restored as images on the display device as image data, drawing components that are managed as graphic data can be searched by association with attribute data, and can also be saved as low-quality data, which is an advantage of managing as image data. This has the effect of being able to pursue cost efficiency.

Therefore, it is possible to create economical drawing files in response to drawing search requests, and is useful for drawing management tasks where a drawing has a large number of drawing components and some of them require advanced search functionality. The contribution it makes is immeasurable.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a drawing management device according to an embodiment of the present invention, FIG. 2 is a diagram illustrating the configuration of the drawing frame file in FIG. 1, and FIG. 3 is a drawing management device according to this embodiment. FIG. 3 is a diagram for explaining the operation of the device. In the figure, - figure data input section, - image data input section, - screen coordinate input section, - figure data display section, - image data display section, - drawing frame file, - figure data file, - image data file, - It is a display device.

Claims (1)

[Scope of Claims] A graphic data input section for converting and inputting drawing constituent elements in a drawing into graphic data and inputting the drawing frame coordinates of the drawing, and a graphic that stores the graphic data converted and input by the graphic data input section. A data file, an image data input section that converts and inputs drawings into image data, an image data file that stores the image data converted and input by this image data input section, and searches and displays image data from this image data file. an image data display section for outputting to the device; a tube surface coordinate input section for inputting the drawing frame coordinates of the image data displayed on the display device; and the drawing frame coordinates input by the tube surface coordinate input section and the graphic data. The drawing frame file that stores the drawing frame coordinates inputted by the input unit in pairs, and the coordinate conversion coefficients calculated based on the two types of drawing frame coordinates stored in pairs in this drawing frame file. a graphic data display section that converts coordinate values of graphic data stored in a graphic data file and outputs the converted coordinates to the display device; 1. A drawing management device comprising: a display device that displays a composite image with image data.