JPH0195307A - Display device for three-dimensional form - Google Patents

Abstract

PURPOSE:To easily check a 3-dimensional form by displaying the 3-dimensional form of a structure in the form of 2-dimensional data in response to the height of the structure obtained when the structure is viewed at the upper side of a reference plane set optionally. CONSTITUTION:The 3-dimensional data on the work supplied to a display processor 21 is stored in a data memory 22. Then the section forms of a reference plane set optionally and plural planes parallel to said reference plane are transformed into the 2-dimensional data and stored in a frame memory 23. These 2-dimensional data are set on each other on a plane for each block and sent to a CRT 24. The arithmetic result of the processor 21 is stored in the memory 22 and the display data is updated according to the change of the section form of the work. The colors of a section form 31 of the reference plane and a section form 33 of the highest part of the plane are specified. Then the intermediate section form is set by a mixing ratio between said two colors and based on the relevant data.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a three-dimensional shape display device that displays a three-dimensional shape on a two-dimensional display surface.

(Prior art) When creating a program for machining center processing using a numerical control device, it is necessary to check whether the automatically calculated three-dimensional shape is as designed. Three-dimensional plotters were used. Recently, a method has also been developed that uses a graphic display to draw a three-dimensional shape according to a specific projection method and confirm the shape without trial cutting.

(Problems to be Solved by the Invention) In such a conventional method, it takes time to check the program, and the cost increases accordingly. Moreover, when drawing a three-dimensional shape, especially a free-form surface, it is not possible to accurately judge the details of the shape from the screen alone.
There were problems such as the need for trial cutting.

The present invention has been made in view of the above points, and it is an object of the present invention to provide a three-dimensional shape display device that allows the results of programming to be confirmed immediately and at high speed.

(Means for Solving the Problems) According to the present invention, in a three-dimensional shape display device that displays a three-dimensional shape of a structure by converting it into two-dimensional data, the structure is provided with a standard at predetermined spatial coordinates. coordinate setting means for setting a plane; calculation means for dividing the reference plane into a plurality of blocks and determining height data for each block of the structure; A three-dimensional shape display device comprising: a data conversion means for forming two-dimensional data for each of a plurality of planes parallel to each other; and a display means for forming display data from the two-dimensional data for each of these planes. Can be provided.

(Function) In the three-dimensional shape display device of the present invention, the three-dimensional shape of a structure is displayed on a CRT screen using two-dimensional data formed according to the height when viewed from above an arbitrarily set reference plane. It can be displayed on a two-dimensional screen such as

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows a display device 2 connected to a host processor 1.
It is a block diagram showing an example.

The shape of the workpiece to be machined by the NC machine tool is read into the host processor 1 from the programmed NC tape 3 as data on the three-dimensional shape of the structure. The display device 2 is used, for example, in an automatic programming device having a keyboard that allows modification of the NC tape 3 in an interactive manner, and is composed of a dedicated display processor 21, a data memory 22, a frame memory 23, and a CRT 24. has been done.

Figure 2 (a) shows the reference plane X set for the workpiece.
An example of the display screen 30 when the workpiece shape is viewed from above -Y is shown. 3B is a view of the work in the Y-Z plane of the set spatial coordinates, and FIG. 1E is a view of the work in the X-Z plane. In the screen of FIG. 3(a), the workpiece cross-sectional shape 31
is shown divided into a plurality of blocks divided at equal intervals in each axis direction, and the cross-sectional shape 32.33 of the workpiece in a plane parallel to a reference plane set at a unit height in the Z-axis direction is shown. has been done. Workpiece cross-sectional shape 31, 32, 33 respectively
is displayed in a different color for each block included therein, for example, by increasing the density of the color depending on the height.

In the above embodiment, the three-dimensional data about the workpiece supplied to the display processor 21 is stored in the data memory 22, and from there the cross-sectional shape on an arbitrarily set reference plane and a plurality of planes parallel to the reference plane are calculated. It is reconstructed as dimensional data and stored in the frame memory 23. These two-dimensional data on a plurality of planes are then superimposed in corresponding blocks and sent to the CRT 24. Further, the calculation results in the processor 21 are stored in the data memory 22, and the display data can be updated according to changes in the cross-sectional shape of the workpiece obtained by processing data from programs sequentially supplied. In the CRT 24, the color of the image displayed in color may change depending on the height from the reference plane, but the colors of the cross-sectional shape 31 at the reference plane and the cross-sectional shape at the top plane are each specified, and the colors displayed in the middle By setting the mixing ratio of the two colors based on the cross-sectional shape of the cross-sectional shape, you can change the density of the color at different heights.
The display device can be constructed at low cost.

In addition, in the case of monochrome display, even if the brightness of the display segment is changed according to the data of the block,
A three-dimensional shape can be displayed using the converted two-dimensional data.

The present invention has been described above in connection with the illustrated embodiments, but the present invention can take various configurations within the scope and spirit of the claims, and unless there are special circumstances, , there is no intention to limit the invention to the details described.

(Effects of the Invention) As explained above, according to the present invention, the programming result can be checked instantly and at high speed using two-dimensional data according to the height, and the three-dimensional shape can be easily checked. Display devices can be provided.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing an example of a display image. 1... host processor, 2... display device. Patent applicant Representative of FANUC Co., Ltd. Patent attorney Minoru Tsuji

Claims (1)

[Scope of Claims] (1) In a three-dimensional shape display device that displays a three-dimensional shape of a structure by converting it into two-dimensional data, coordinate setting means sets a reference plane at a predetermined spatial coordinate for the structure. a calculation means for dividing the reference plane into a plurality of blocks and determining height data for each block of the structure; and a plurality of planes parallel to the reference plane according to the height data for each block. 1. A three-dimensional shape display device comprising: data converting means for forming two-dimensional data for each plane; and display means for forming display data from the two-dimensional data for each plane. (2) The three-dimensional shape display according to claim (1), wherein the display means performs a predetermined color calculation using two-dimensional data to determine the display color for each block. Device. (3) The three-dimensional shape display device according to claim (1), wherein the display means displays the display data by changing brightness.