JPH0488573A - Method and device for inputting relative coordinates - Google Patents

Abstract

PURPOSE:To prevent complicated operations and input error by setting the state of automatically enabling the input of relative coordinates in the case of a snap input, and displaying the starting position of the relative input by a cursor. CONSTITUTION:When an operator inputs the coordinate values of a line segment by the snap input, a program automatically moves to the relative input, the graphic data of the line segment designated by the snap input and a picture data for relative input are written in a video RAM 9a, and a picture for urging the relative input to the operator is displayed on the screen of a display 5. In this picture, the word of 'relative' is displayed in a line at the upper part of the screen, and an X mark is displayed at an end point on the line segment designated by the snap input so as to clearly show which coordinate position the relative input is executed from. The operator confirms the point to start the relative input according to this picture and inputs the relative values of X=1000 and Y=1000, for example, from a keyboard 2.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an input method and apparatus for inputting the coordinate position of a figure into a CAD system using an input device such as a mouse or a digitizer.

[Prior Art] Conventionally, when creating an architectural drawing using a CAD system, etc., the architectural drawing being created is displayed on the display of the CAD system, and the coordinate position on the architectural drawing is determined using a mouse, a digitizer, etc. Snap input and relative coordinate input were used to operate and input.

[Problems to be Solved by the Invention] However, in the conventional snap input, relative input operations from the snapped point are complicated. For example, if you input relative coordinates from the end point of the line segment, X = 1000.
．． When inputting the coordinates of Y=1000, as shown in the flowchart in Figure 4(b), select "Change final point" of Object □ Snap #1), then "End point"
Select #2), specify the line segment #3), then select "Relative"#4), and then input the relative value (#5). Since such input processing is necessary, the complexity of operations is unavoidable. Also,
On the screen for inputting relative coordinates, as shown in Figure 4(a), only "relative" is displayed in the display line at the top of the screen, so it is not very noticeable, and furthermore, it is difficult to see which point Since there is no visible mark on the screen to indicate whether the relative input is relative, I sometimes found myself skipping the relative input because I could tell where the relative input started.

The present invention solves the above problems, and makes it possible to automatically input relative coordinates during snap input. At this time, the relative input start position can be moved with a cursor in order to prompt the input of coordinate values for relative input. It is an object of the present invention to provide a relative coordinate input method and device that can display relative coordinates to eliminate complexity of operation and input errors.

1. Means for Solving the Problem] In order to achieve the above object, the invention of claim 1 resides in an input method of inputting coordinate position data of figures such as architectural drawings into a computer using an input means such as a mouse. When snap input is performed using the input means, the system automatically waits for relative coordinate input, and at this time the relative coordinate input start position is displayed with a cursor.

The invention of claim 2 provides an input device including an input means such as a mouse for inputting coordinate position data of a figure such as an architectural drawing into a computer, and a display means for displaying the figure on a screen. When performing this, the system automatically waits for relative M coordinate input, and at the same time, the relative coordinate input start position is displayed with a cursor on the display means.

[Operation] According to the method described in claim 1, the end point input at the time of snap input is set as the start position of relative coordinate input, the relative coordinate input state is automatically entered, and the start position is clearly indicated with a cursor.

According to the apparatus according to the second aspect, the coordinate position data inputted by the input means indicates an end point on the figure displayed on the screen by the display means, and this end point is set as the relative coordinate input start position. This starting position is clearly indicated by a cursor on the screen.

[Embodiment] Hereinafter, a CAD system according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows the block configuration of the CAD system.

The CAD system includes a hard disk 1 that stores files of architectural drawings, etc., a keyboard 2 (input means) and a mouse 3 (input means) for inputting coordinate positions on the architectural drawings, etc.
A CAD main body 4 that imports input coordinate data and creates graphic data of an architectural drawing, and a display 5 (output means) that displays the graphic data processed by this CAD main body 4.
and a plotter 6 (output means) that outputs the graphic data as an architectural diagram on recording paper.

The CAD main body 4 has a C controller that controls the input device and the entire device.
Pυ7, ROM8 that stores CAD programs, RAM9 that serves as a work area for creating architectural drawing data, and CA
It consists of an interface 10 for receiving and passing data etc. between the D main body 4 and the input/output device.

The RAM 9 is provided with a video RAM 9a area, and by writing graphic data into the video RAM 9a, graphics such as architectural drawings are displayed on the display 5.

The CAD program stored in the ROM 8 includes a coordinate input program that allows snap input and relative input using the keyboard 2 and mouse 3. The operations performed by the operator upon execution of this coordinate manual program will be described below with reference to FIG. 2.

During execution of the input program, when the operator inputs the coordinate values of a line segment using snap input, the program automatically shifts to relative input, and the graphic data of the line specified by snap input and the screen for relative input are displayed on the video ram 9a. The data is written, and as shown in FIG. 2, a screen is displayed on the screen of the display 5 that prompts the operator to input relative information.

On this screen, "relative" is displayed in the line at the top of the screen, and an X mark is displayed at the end point on the line segment specified by the snap input to clearly indicate from which coordinate position the relative input is made.

The operator confirms the point at which relative input is to be started on the screen, and inputs, for example, the relative value X-1000Y=1000 from the keyboard 2.

Next, the coordinate input operation of the CAD system configured as described above will be explained based on the flowchart of FIG. 3 showing the operation procedure.

During snap input, when an end point is selected with this snap input, the object snap [1 end point change] is automatically selected, the object snap [Select end point #11] is selected, and the snap input is performed. Indicate the line segment input in (#2).

After that, go to relative input and specify the relative input start position,
Input the relative value (1000, 1000><#3) and finish the coordinate input.

Thus, after the snap input, relative input is automatically executed, and a mark is displayed on the display screen to clearly indicate the position at which relative input is to be started, prompting the operator to input relative coordinate values.

In addition, in the claims, the relative coordinate input start position is described as a cursor display, and in the above embodiment, it is shown as an X mark, but this display can be done in various ways. The position may be displayed by changing the color.

[Effects of the Invention] As described above, according to the present invention, the system automatically enters a state of waiting for relative coordinate input at the time of snap input, so the number of operations for inputting coordinates by the operator was conventionally required to be five. In addition, the start position of the relative input is clearly indicated by a mark such as a cursor on the screen, so it is possible to avoid skipping the relative coordinate input, and the operability of the operation is improved. can be achieved.

[Brief explanation of the drawing]

FIG. 1 is a block configuration diagram of a CAD system according to an embodiment of the present invention, FIG. 2 is a diagram showing a screen displayed on the display when inputting relative coordinates, FIG. 3 is a flowchart showing the operation procedure for inputting coordinates, and FIG. Figures 4(a) and 4(b) are a diagram showing a conventional input screen and a flowchart showing an operating procedure, respectively. 2... Keyboard, 3... Mouse, 5-mount display, 6... Plotter, 7... CPtJ7.9a...
・Video Ram. Applicant Daikin Industries, Ltd. Figure 1 Figure (b)

Claims (2)

[Claims] (1) In an input method that inputs the coordinate position data of figures such as architectural drawings into a computer using an input means such as a mouse, when performing snap input using the input means, the system automatically waits for input of relative coordinates. An input method characterized in that, at this time, a cursor is displayed to indicate the starting position of relative coordinate input. (2) In an input device equipped with an input means such as a mouse for inputting coordinate position data of a figure such as an architectural drawing into a computer, and a display means for displaying the figure on a screen, when performing snap input using the input means. A relative coordinate input device, characterized in that it automatically waits for input of relative coordinates, and at this time displays a relative coordinate input start position on the display means with a cursor.