JPS63239564A - Graphic information input system - Google Patents

Abstract

PURPOSE:To improve the efficiency of graphic processing operation by inputting the geometric shape of a graphic element and an information symbol indicating attribute information to a computer and reading the graphic element and attribute information out of the position relation between the both at the same time. CONSTITUTION:A graphic 1 consists of graphic elements 1a-1e and symbols 1a'-1e' indicating attribute information on mountains and forests or the like are described previously in respective closed curves. An automatic graphic reader 2 reads position information for the graphic elements 1a-1e and position coordinates and previously defined identification codes for the symbols 1a'-1e'. Those data are recorded on a magnetic tape 4. Then the computer 5 extracts the symbols 1a'-1e' from the magnetic tape 4 and retrieves closed curves 1a-1e which include them to give the identification codes that the symbols 1a'-1e' have. Thus, the graphic elements 1a-1e are registered in a memory corresponding to the attribute information on mountains and forests or the like automatically. Consequently, the graphic elements 1a-1e can be specified only by inputting the identification codes on a keyboard 7.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a graphic information input method, and more specifically, in a graphic processing system using a computer, geometric The present invention relates to a graphic information input method in which a shape and semantic information (hereinafter referred to as attribute information) possessed by the graphic element are input in association with each other.

(Prior Art) Conventionally, when the geometrical shapes of various figures are electronically read and processed by a computer system in vector format, not only the geometrical shapes of the graphical elements constituting the figure are handled; , Attribute information representing various things represented by each graphical element is often handled at the same time.For example, Figure 4 is a land use classification map of a certain area as a graphic 31 input to a computer system. , this graphic 3J is composed of graphic elements 31a to 31a classified by land use purpose as attribute information. Here, the graphical elements 31a to 31e correspond to, for example, a mountain forest, a graphical element 31b, a field, a residential area, a residential area, a residential area, a city area, and a factory area, respectively.

If such a figure 31 is to be processed by a computer system, for example, a graphic display device may be used to classify it by land use purpose and display the colors, or to calculate the area for each land use purpose separately. Processing such as calculating the land use rate of When performing such processing, the computer system needs to associate attribute information indicating the purpose of use with each of the graphic elements 31a to 31e whose geometric shapes have been read.

For this reason, conventionally, the geometrical shapes of each graphical element 31a to 31e are read by an automatic graphic reader or digitizer, etc., and input into a computer system.
Thereafter, attribute information is associated with the graphic elements 31a to 31e displayed on the graphic display device using a light pen or the like.

Specifically, as shown in FIG. 5, first, a point within a closed curve indicating the outline of a graphic element 31a displayed on the display screen 32 of the graphic display device is indicated using a light pen or the like ( 31a' indicates the indicated position). Then, the land use purpose "Mountains and Forests" as the attribute information corresponding to this graphical element 31a is selected from the menu display sections 33a to 33e on the tablet 33, and the corresponding menu display section 33a is designated ('33a' indicates the position).

By repeating this operation, each graphic element 318 to 3
1e and each attribute information of the menu display sections 33a to 33e are registered in association with each other, and the colors for each land use purpose will be used in subsequent processes such as displaying and calculating the land use rate for each purpose. Predetermined arithmetic processing or the like is performed within the computer system on the graphical elements 318 to 31e specified in accordance with the attribute information by input operations from the menu display sections 33a to 33a and appropriate keyboards.

(Problems to be Solved by the Invention) However, this method requires input operations using a graphic display device or tablet when associating graphic elements with attribute information, which requires a lot of effort and time. There was also the problem that the load on the computer system increased.

The present invention was proposed to solve the above problems, and its purpose is to simultaneously read information symbols representing attribute information of each graphic element when reading the geometric shape of the graphic element. An object of the present invention is to provide a graphic information input method that automatically associates graphic elements with attribute information, thereby reducing the labor and operating time of an operator and the load on a computer system.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides information symbols such as symbols and numbers representing attribute information possessed by a graphical element, corresponding to the geometrical shape of the graphical element. The graphic element and attribute information are written in advance in a closed curve, for example, a closed curve or a virtual closed curve that indicates the outline of a graphic element, and based on the positional relationship between the closed curve and the information symbol corresponding to the geometric shape input into the computer system. The feature is that it is input in association with.

(Operation) According to the present invention, the geometrical shape of one graphic element and a unique information symbol previously described in correspondence with this geometrical shape are simultaneously read by an automatic graphic reading device or the like. computer system.

The geometric shape, the position coordinates of the information symbol, and the identification code of the information symbol are input via a magnetic tape or the like. Then, focusing on the positional coordinates of a certain information symbol, a closed curve that includes this positional coordinate is searched for, the closed curve is recognized as a graphical element corresponding to the information symbol, and the identification code is given to the graphical element. Correlate graphic elements and attribute information.

Example) An embodiment of the present invention will be described below with reference to FIG.

First, FIG. 1 shows a drawing in which a figure 1 is inputted into a computer system according to the present invention, and this figure 1 is, for example, a land use classification map of a certain area as described above. In addition, the figure 1 consists of figure elements 1a to 1e, and the purpose of land use as attribute information is, for example, the figure element 1a is a forest, the figure tb is a field, the figure 1c is a residential area, the figure 1d is an urban area, and the figure 1e is a factory. It corresponds to each region.

In this embodiment, each graphic element 18 to 1e
Inside the closed curve showing the outline of the information symbols La' to le
' is written in advance.

This figure 1 is generated by the figure information input system 10 shown in FIG.
At this time, the geometric shapes of the graphic elements 18 to 1e are read by the automatic figure reading device 2 (or digitizer 3).

For example, each graphic element 18 to 1e is regarded as a polygon, and the coordinates of each vertex are read, and at the same time, the position coordinates of the information symbols la' to le' in the graphic elements 18 to le are read, and the coordinates of each of the information symbols la' to le' are read. Read the predefined identification code. Here, if the information symbols la' to le' are numbers rather than symbols as illustrated, the numbers themselves are read. That is, in this case, the information symbol, that is, the number itself becomes the identification code. The geometric shapes and information symbols la″ of each of these graphical elements 1a to 1e
The data such as the coordinates related to ~le' are output in the state of magnetic recording on the magnetic tape 4, for example.

The computer system 5 then extracts the geometrical shapes and information symbols l of the graphical elements 18 to 1e from the magnetic tape 4.
After reading all the data related to a' to le', for example, the position coordinates of the information symbol la' are extracted. next,
A closed curve that includes this position coordinate is searched using a well-known algorithm, and the graphic element 1a is specified by the closed curve.
The identification code of the information symbol la' is assigned to the information symbol la'. By doing so, one graphic element 1a and its attribute information "mountain/forest" can be automatically correlated via the information symbol 18'', and this correspondence is registered in the memory within the computer system 5.

The above-described association is performed for all graphic elements 1a to 1e. Then, when performing processing such as displaying the color classification for each land use purpose or calculating the land use rate, each identification code can be entered using an input device such as the keyboard 7 shown in Fig. 2. , graphic elements 18 to 1e having attribute information corresponding to these identification codes are identified,
It will be used for calculation processing etc. by the computer system 5.

In FIG. 2, numeral 6 indicates a graphic display device on which processing results such as color display are displayed.

Here, closed curves of graphical elements describing information symbols are as shown in FIGS. 1 and 3 (a).

When the geometrical shape of the graphic elements 18 to 18 le and IA is planar and the outline itself forms a closed curve (IA" in FIG. 3 (a)), information symbols la' to le' and IA are placed within the closed curve.
A' is written, and the graphic element IB is created as shown in Figure 3 (b).
If is a point, the outline of a square circumscribed to a circle with radius r centered at that point, or if the graphic element IC is a straight line as shown in Figure 3 (C), the center is the straight line. The contours of rectangles with length IXm are defined as virtual closed curves IB''', ic'' and information symbols IB are placed inside them.
', IC' should be written.

In addition, graphical elements IB as shown in FIGS. 3(b) and (c)
, When reading the geometrical shape of an IC, the coordinates of a point and the coordinates of the starting point and ending point of a straight line are read, respectively.

Further, the information symbol in the present invention may be a word of the attribute information itself.

(Effects of the Invention) As described in detail above, according to the present invention, an information symbol representing attribute information together with the geometric shape of a graphic element is input into a computer system, and the graphic element and attribute information are determined based on the positional relationship between the two. Since it is automatically matched, the manual matching using a graphic display device, tablet, etc. as in the past is no longer necessary, reducing the operator's labor and operation time and the load on the computer system. be able to.

This has the effect of increasing the efficiency of a series of graphic processing operations performed by the computer system.

[Brief explanation of the drawing]

1 to 3 are for explaining one embodiment of the present invention, and FIG. 1 is an explanatory diagram of an input figure. Figure 2 is a configuration diagram of the graphic information input system, Figure 3 (a)
, (B), and (C) are explanatory diagrams of closed curves corresponding to graphical elements, respectively; FIGS. 4 and 5 are explanatory diagrams of conventional examples, and FIG. 4 is an explanatory diagram of an input graphic. FIG. 5 is an explanatory diagram showing the operation of the correspondence between graphic elements and attribute information. 1...Figures 1a-le, IA-1c...
Graphical elements la' to Is', IA' to Ic'-information symbols ■A'' to IC''...Closed curve 2...Automatic figure reading device 4...Magnetic tape 5...Computer system 10... Graphic information input system patent applicant Fuji Electric Co., Ltd. Figure 1 Figure 2 Figure 3 (B) (C) Figure 4
Figure 31'c Figure 5

Claims (1)

[Claims] In a graphic information input method in which the geometrical shape of a graphical element constituting a graphical element and attribute information possessed by the graphical element are input into a computer system, an information symbol representing the attribute information is input to the geometrical shape of the graphical element. , and input the graphic element and attribute information in correspondence based on the positional relationship between the closed curve and the information symbol corresponding to the geometrical shape input into the computer system. A graphical information input method featuring the following.