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Function curve processing method and device, equipment and storage medium

A processing method and curve technology, which is applied in the field of image processing in educational information technology, and can solve the problems of low operability and inability to edit curves.

Inactive Publication Date: 2018-05-15
GUANGZHOU SHIYUAN ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, after the function curve is drawn, it cannot continue to be edited according to the set requirements, and the drawn curve has low operability

Method used

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  • Function curve processing method and device, equipment and storage medium
  • Function curve processing method and device, equipment and storage medium
  • Function curve processing method and device, equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] figure 1 It is a flow chart of a method for processing a function curve provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation where the shape of the function curve needs to be changed, and the method can be executed by the device for processing the function curve provided by the embodiment of the present invention. , the device may be implemented in software and / or hardware. refer to figure 1 , the method may specifically include the following steps:

[0024] S110. Determine at least one point on the function curve currently displayed in the preset coordinate system as a drag point.

[0025] Optionally, the preset coordinate system is a coordinate system adapted to the currently displayed function curve, wherein the information of the preset coordinate system may include: the unit length of the coordinate system, the corresponding relationship between the function curve and the coordinate system, and according to the current...

Embodiment 2

[0040] Figure 2a It is a flow chart of a method for processing a function curve provided by Embodiment 2 of the present invention. On the basis of the above embodiments, this embodiment "according to the curve type of the function curve, the coordinates of the reference point and the Real-time coordinates during the moving process of dragging points, determining and displaying the updated objective function expression and the objective function curve corresponding to the objective function expression" has been optimized. refer to Figure 2a , the method may specifically include the following steps:

[0041] S210. Determine at least one point on the function curve currently displayed in the preset coordinate system as a drag point.

[0042] S220. Control the dragging point to move in the preset coordinate system according to the dragging operation, and keep the position of at least one reference point on the function curve unchanged.

[0043] S230. Determine and display an ...

Embodiment 3

[0058] image 3 It is a schematic structural diagram of a device for processing a function curve provided in Embodiment 3 of the present invention, and the device is suitable for executing a method for processing a function curve provided in the embodiment of the present invention. like image 3 As shown, the device may specifically include:

[0059] Drag point determination module 310, configured to determine at least one point on the function curve currently displayed in the preset coordinate system as the drag point;

[0060] A moving module 320, configured to control the drag point to move in the preset coordinate system according to the drag operation, and keep the position of at least one reference point on the function curve unchanged;

[0061] A display module 330, configured to determine and display the updated objective function expression and the objective function expression according to the curve type of the function curve, the coordinates of the reference point...

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Abstract

The embodiment of the invention discloses a function curve processing method and device, equipment and a storage medium. The method comprises the steps of determining one or more points on a functioncurve currently displayed in a preset coordinate system as drag points; controlling the drag points to move in the preset coordinate system according to a drag operation, and keeping the positions ofone or more reference points on the function curve unchanged; according to a curve type of the function curve, coordinates of the reference points and real-time coordinates of the drag points in the movement process, determining and displaying an updated target function expression and a target function curve corresponding to the target function expression. The shape of the function curve is changed by automatically dragging the drag points on the function curve, and the function curve is updated and displayed in real time.

Description

technical field [0001] The invention relates to the field of image processing in educational information technology, in particular to a method, device, equipment and storage medium for processing function curves. Background technique [0002] When drawing a function curve on the electronic whiteboard, it is usually necessary to parse the string entered by the user into a mathematical expression, then draw the function image according to the mathematical expression, and trace the intersection point between the function image and the coordinate axis. In the prior art, after the function curve is drawn, it cannot be edited according to the set requirements, and the drawn curve has low operability. Contents of the invention [0003] Embodiments of the present invention provide a function curve processing method, device, device, and storage medium. By autonomously dragging a point on the function curve to change the shape of the function curve, real-time update and display of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/0484G06F9/451G06F17/17G06T11/20
CPCG06F3/04845G06F17/17G06T11/203
Inventor 张强
Owner GUANGZHOU SHIYUAN ELECTRONICS CO LTD