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Method for automatic obtaining engineering parameter values of sampling points in graph by using computer

A technology of automatic acquisition of engineering parameters, applied in calculation, electrical digital data processing, special data processing applications, etc., can solve the problem of inability to measure the position intuitively, and achieve the effect of easy operation, easy realization, and simple programming method

Inactive Publication Date: 2006-07-05
李强
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Problems solved by technology

In some complex coordinate systems such as multi-coordinate systems and logarithmic coordinates, it is impossible to intuitively measure the position of the point in the coordinate system for the engineering parameter values ​​corresponding to each point on the graph or curve.
[0005] Therefore, the present invention proposes a method for automatically obtaining engineering parameter values ​​of sampling points from graphics by using a computer, which solves the problem of taking values ​​of engineering parameters corresponding to graphic sampling points when there is no standard reference of mathematical models in the industry.

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  • Method for automatic obtaining engineering parameter values of sampling points in graph by using computer
  • Method for automatic obtaining engineering parameter values of sampling points in graph by using computer
  • Method for automatic obtaining engineering parameter values of sampling points in graph by using computer

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[0017] The coordinate system is that every graphics operation (including resizing, moving, and drawing) uses the coordinate system of the drawing area or container. Although the coordinate system can be used to achieve successful graphics effects, however, how to use the coordinate system to define the position of the form and control in the application is also very important. A coordinate system is a two-dimensional grid that defines locations on the screen, in a form, or in other containers such as picture boxes or Printer objects. Using the coordinates in the form, the position on the grid can be defined: (x,y) The x value is the position of the point along the x-axis, the leftmost being the default position 0. The y value is the position of the point along the y axis, with the top end being the default position of 0. Responding to mouse events can make the application respond to changes in the mouse position and state through the MouseDown and MouseMove events. Most cont...

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Abstract

The invention advances a method for automatically obtain engineering parameter values of sampling points from a graph by computer, obtaining the engineering parameter values of sampling points in the graph by conversion and calculation for a reference frame. And the method comprises the steps of: leading an to-be-processed graph or curve into a computer graph container, and obtaining the origin position of a user reference frame where the graph exists; according to the in-window position relation of all sampling points in the graph in the user reference frame, one by one determining their relative positions in the window; obtaining the relation between all the sampling points in a system reference frame, and calculating a distance between every two adjacent sampling points and using this as reference frame transform unit quantities of the system and user reference frames; moving a cursor to generate a cursor following value and using the unit quantities to obtain corresponding engineering parameter values to all sampling points.

Description

technical field [0001] The invention relates to a method for processing graphics by using a computer, in particular to a method for tracking the mouse in the graphics and obtaining engineering parameter values ​​of sampling points according to the coordinates of the current cursor. Background technique [0002] Nowadays, there are a large number of charts in engineering calculations, most of which are represented by various curves in the coordinate system. Usually, these charts are drawn by hand or with the help of drawing instruments. The value method at this time is through mathematics. The calculated results, that is, in order to obtain the engineering parameter values ​​of each point on the curve, it is necessary to establish a very complex mathematical model, and then combine the position of the point on the curve to carry out reverse calculation, in order to obtain the actual value corresponding to the point. Engineering parameter values. At p...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 李健忠李强张玉峰高伏
Owner 李强
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