JPH0765202A - Model estimating processor - Google Patents

Abstract

PURPOSE:To obtain the model estimating processor which can modify a three- dimensional graph figure on a display screen and automatically estimates a model corresponding to the modification as to the generation of the model. CONSTITUTION:The processor which displays plotting data showing the model inputted from an input part 12 at a display part 13 as a three-dimensional solid graph through a graph processing part 11 is provided with a model estimation part 14; and the graph processing part 11 generates updated plotting data and modifies a display of the figure according to a modification indication when the modification of the figure displayed at the display part 13 is indicated on the figure and the model estimation part 14 estimates the model corresponding to the figure after the update through the specific modification based upon the difference between the updated plotting data and the corresponding to original data.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention, in a device for displaying a three-dimensional solid graph figure from a given model, automatically changes the model by changing the graph display on the screen. The present invention relates to a model estimation processing device that can be estimated dynamically.

[0002]

2. Description of the Related Art FIG. 6 shows an example of the configuration of an apparatus for displaying a three-dimensional solid graph figure from a given model. The user can define, for example, a desired functional expression as information representing the model from a keyboard of the input unit 2 or the like. 3 is input, the graph processing unit 1 displays the function formula on the display screen of the display unit 3 as shown in FIG. 3A for confirmation, and if there is a predetermined key input indicating confirmation, the input of the model is completed. Is displayed at the right end as in (b). The example model shown is a simultaneous linear equation in a known multivariate analysis.

Next, in order to display a three-dimensional solid graph, it is necessary to determine three elements from among an arbitrary number of elements, so the graph processing unit 1 changes the variables that are different from the function formula of the input model. Is extracted and displayed as an element selection as shown in FIG. 3B, and three of the displayed variables are selected by operating the cursor from the input unit 2 on the display screen (see FIG. 3). (B) is an example in which y, ρ, and t are selected).

Next, in order to specify the range of values to be displayed, the graph processing unit 1 displays "range:" and three element names as shown in FIG. 3C, and inputs each range to the underlined part. In addition, the fixed value to be given to other variables is input by "value:".

Since the necessary information is gathered as described above, the drawing data within the specified range is obtained by the function formula and three elements (eg y, ρ,
Let the value of t) be the point coordinates in the three-dimensional space. Next, display data is generated from the drawing data of these points so that a three-dimensional graph having the obtained points on the surface is displayed as a bird's-eye view,
On the display screen of the display unit 3, the figure of the three-dimensional solid graph as shown in the example of FIG.

When a three-dimensional solid graph is displayed in this manner for the purpose of evaluating the validity of the model, the model is corrected by observing the figure and determining that the model is inappropriate. Consider and make a modified model.

To that end, apart from the display screen, the difference between the graph displayed separately by the user and the expected graph is assumed, and the user considers the modification of the model necessary to fill the difference, Create a modified model.

[0008]

In order to evaluate the modified model obtained as a result, the model is input again as described above, and the displayed three-dimensional solid graph is judged, and it is judged to be a valid model. Until the graph figure is displayed, the above-described model correction, model re-input, and graph display observation / evaluation operations must be repeated.

According to the present invention, the three-dimensional solid graph figure displayed based on the model as described above can be changed on the display screen, and the model corresponding to the changed figure is automatically estimated. The object is a model estimation processing device.

[0010]

FIG. 1 is a block diagram showing the configuration of the present invention. FIG. 1 is a configuration of a model estimation processing device, in which the graph processing unit 11 displays drawing data representing the model on the display unit 3 as a three-dimensional solid graph according to the model input from the input unit 12, A model estimation unit 14 is provided.

When there is an input for instructing to change the figure displayed on the display section 13 on the figure, the graph processing section 11 generates updated drawing data in accordance with the change instruction and changes the figure. Change the display.

The model estimating unit 14 estimates a model corresponding to the updated figure by a predetermined change process based on the difference between the updated drawing data and the corresponding original drawing data.

[0013]

With the model estimation processing device of the present invention, the three-dimensional solid graph figure generated and displayed from the model can be corrected on the display screen to the shape expected to be obtained from the desired model. When the graph is modified to, the model corresponding to the modified graph is automatically estimated.

Therefore, when the displayed graph does not have the expected shape, there is no need for the user to create and re-enter a modified model as in the conventional case, and more accurate model modification becomes possible, resulting in a three-dimensional model. The operation for creating an appropriate model while evaluating with a three-dimensional graph can be carried out extremely easily and quickly.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a graph processing unit 11, an input unit 12 and a display unit 13 have described the input of a first model definition and the display of a three-dimensional solid graph based on the input with reference to the conventional FIG. The graph processing unit 1, the input unit 2, and the display unit 3 operate in the same manner.

According to the present invention, when the user corrects the graphic of the displayed three-dimensional solid graph on the display screen,
For example, the user designates a plane by operating the cursor on the display screen with the keys of the input unit 12 or an appropriate pointing device after designating the “disconnect” instruction displayed at the lower right of the screen with a cursor or the like. .

When the designation is made, the graph display unit 11 appropriately highlights the ridge line of the solid graph cut in the plane as shown in FIG. 4B (in the example of the figure, the y-ρ plane is displayed. When the confirmation input is received, for example, another window is overlapped as shown in the upper right of FIG. 5C, and a figure showing the ridge line of the cut surface (in the figure) is displayed. Display a solid curve).

Therefore, when the user operates the cursor from the input unit 12 to specify a change by, for example, a so-called dragging operation that specifies a point on the displayed curve and a position to move the point, the graph processing unit Reference numeral 11 sequentially displays a curve corrected so as to pass through the designated point by a broken line or the like as in the illustrated example.

When the user looks at the curved line shape of the broken line and inputs an instruction to confirm the change, the graph processing section 11 generates and saves the drawing data of the three-dimensional solid graph corresponding to the correction, and Based on the drawing data, FIG.
Change as follows and display the figure of the three-dimensional solid graph.
The above figure correction operation may be repeated as many times as necessary.
The modified drawing data for each time is saved.

When the user obtains the desired graphic display by the above operation, the graph processing section 11 requests the model estimating section 14 for processing, because an instruction to end the operation is input. The model estimation unit 14 estimates the functional expression of the new model based on the difference between the corrected data and the corresponding original data, for example, by using the function identification method by applying the least squares method of the known multivariate analysis. First, a difference function formula is obtained, and the difference function formula is added to the function formula of the original model to estimate the function formula of the model corresponding to the figure of the corrected three-dimensional solid graph.

Therefore, the graph processing unit 11 calculates the functional formula of the model obtained by the model estimating unit 14 as shown in FIG.
Display as shown in (d). In the case of estimating by the above-described arithmetic method as in the illustrated example, generally, the error formula ei as in the original function formula disappears in the function formula of the estimation model.

FIG. 2 is a diagram showing an example of the processing flow of the present invention. In the figure, when the figure of the three-dimensional solid graph is displayed based on the already input model, the figure is corrected. , Shows a flow of processing for estimating a model corresponding to the modification.

That is, when the cutting instruction is input, the graph processing unit 11 receives the designation of the cutting surface in processing step 20,
In processing step 21, a window is provided so as to be superimposed on the solid graph, and the curve of the ridge line of the cut surface is displayed in the window according to the drawing data.

Next, in processing step 22, when a change input is input by dragging operation for one point on the curve on the displayed cut surface graphic, in processing step 23, the curve corresponding to the change is broken. Display with.

In processing step 24, it is discriminated whether or not a confirmation instruction has been input, and if not confirmed, processing returns to processing step 22 and the next change of point is processed in the same manner as described above. When the change is confirmed in this way, in step 25, the drawing data corresponding to the confirmed change curve is determined and saved. This changed drawing data is, for example, in the case of the figure illustrated in FIG. 4, for each value of y determined from the value of t for determining the cutting plane and each value of ρ, each changed value y Stored as'.

Then, in step 26, the figure of the three-dimensional solid graph is corrected and displayed according to the changed drawing data. In the processing step 27, the operation end instruction input or the cutting instruction input is discriminated, and if the cutting instruction is issued, the process returns to the processing step 20 and waits for the next cut surface designation, whereby the above operation can be repeated a necessary number of times.

If it is an operation end instruction, the graph processing unit 11
From the model estimating unit 1 to request processing from the model estimating unit 1.
4 is a processing step 28, in which the difference between the old and new drawing data for the changed portion is obtained from the drawing data held in the graph processing unit 11.

In the processing step 29, the model estimating unit derives a difference function formula based on this difference data, and adds the difference function formula to the function formula of the model to obtain the estimation function formula of the new model. Displays the obtained functional formula as an estimation model.

In the above description, the three-dimensional solid graph being displayed on the screen is operated on one plane. However, it is a matter of course that a plurality of cutting planes may be used in the present invention, and a plurality of planes are instructed to be cut. At this time, a plurality of cross-sectional graph display windows are displayed, and all window operation corrections are reflected in the model correction.

If necessary, the user requests the display of a three-dimensional solid graph by replacing the displayed function model of the estimated model with the function function of the original model. Check the sex.

[0031]

As is apparent from the above description, according to the present invention, when a valid model is created while evaluating a three-dimensional solid graph displayed on the device, the displayed graph does not have the expected shape. In addition, since the user does not need to create and re-enter the modified model as in the conventional method, and the model can be more accurately modified,
There is a remarkable industrial effect that the operation for creating the model can be carried out extremely easily and quickly.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of the present invention.

FIG. 2 is a flow chart of processing of the present invention.

FIG. 3 is a diagram illustrating a screen such as model input.

FIG. 4 is a diagram (part 1) explaining a graph display screen.

FIG. 5 is a diagram (part 2) explaining a graph display screen.

FIG. 6 is a block diagram showing a conventional configuration example.

[Explanation of symbols]

 1, 11: Graph processing unit 2, 12: Input unit 3, 13: Display unit 14: Model estimation unit 20 to 30: Processing steps

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location 8125-5L G06F 15/62 350 K

Claims (1)

[Claims] 1. A graph processing unit (11) comprises an input unit (12).
A model estimating unit (14) is provided in a device that displays drawing data representing the model as a three-dimensional solid graph on a display unit (13) according to the model input from the model processing unit (11). When there is an input for instructing to change the figure displayed on the section (13) on the figure, updated drawing data is generated to change the display of the figure according to the change instruction, and the model estimation is performed. The unit (14) is configured to estimate a model corresponding to the updated figure by a predetermined change process based on a difference between the updated drawing data and the corresponding original drawing data. Model estimation processing device.