CN107346247A - A kind of electric power GIS module realizing method based on Power Graphics System - Google Patents
A kind of electric power GIS module realizing method based on Power Graphics System Download PDFInfo
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- CN107346247A CN107346247A CN201710539459.2A CN201710539459A CN107346247A CN 107346247 A CN107346247 A CN 107346247A CN 201710539459 A CN201710539459 A CN 201710539459A CN 107346247 A CN107346247 A CN 107346247A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/30—Creation or generation of source code
- G06F8/34—Graphical or visual programming
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
Abstract
The invention provides a kind of electric power GIS module realizing method based on Power Graphics System, this method determines the transformational relation between Power Graphics System coordinate system and projected coordinate system first, and parsing obtains the conversion formula between projected coordinate system and Power Graphics System coordinate system.Projection coordinate's value of geo-spatial data and power equipment data is changed respectively, obtain the coordinate value under Power Graphics System coordinate system, then geo-spatial data and power equipment data are loaded according to the coordinate value after conversion under Power Graphics System coordinate system, and drafting displaying is carried out, the basic operational functions such as finally addition positioning, translation, scaling.The present invention realizes a lightweight electric power GIS module, possesses generalized information system basic function, meets the needs of power system shows power equipment spatial information to GIS technology, highly merged with Power Graphics System, implementation process is relatively convenient, relative inexpensiveness, is more favorable for being engineered popularization.
Description
Technical field
The present invention relates to a kind of electric power GIS module realizing method based on Power Graphics System, belongs to electric power GIS technology neck
Domain.
Background technology
With popularization of the electric power GIS in each power industry field such as generating, transmission of electricity, power transformation, distribution, scheduling, electric power figure
The shape framework of various demands under to(for) electric power GIS module are constantly suggested.Electric power GIS module is more by using business software at present
Realize, or completed using open source software by research staff, the former needs high cost, and the latter then grow by the R＆D cycle, to research and development
Personnel requirement is higher.In this context, the demand for the lightweight electric power GIS module realized to relatively low cost, easily is more strong
Strong, there is an urgent need to corresponding implementation method.
The content of the invention
To solve the above problems, the invention provides a kind of electric power GIS module realizing method based on Power Graphics System,
Efficient, easy electric power GIS module implementation process is proposed, improves the operating efficiency of electric power GIS application developer, effectively
It is cost-effective, and use can be highly merged with Power Graphics System, it is easy to engineering staff to promote.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of electric power GIS module realizing method based on Power Graphics System, is comprised the steps of：
（1）Projected coordinate system used in analysis foundation geodata and power equipment data；Determine Power Graphics System coordinate system
Transformational relation between projected coordinate system, and obtain the conversion formula between projected coordinate system and electric power graphs coordinate system；
（2）Coordinate value projection coordinate's value of geo-spatial data being converted under Power Graphics System coordinate system.According in electricity
Try hard to the loading geo-spatial data of the coordinate value under shape system coordinate system and draw displaying.
（3）Coordinate value projection coordinate's set occurrence of electric data being converted under Power Graphics System coordinate system.According to
Coordinate value under Power Graphics System coordinate system loads electric data and draws displaying.
（4）Acted for GIS modules addition positioning, translation, scaling mouse action, realize the GIS modules of a lightweight.
2nd, according to the method for claim 1, it is characterised in that the step（1）Implementation process be：
（1.1）The conventional projected coordinate system of geo-spatial data is parsed, using the intersection point after central meridian and equatorial projection as seat
Origin is marked, axis of ordinates y is projected as, it is specified that y-axis is northwards for just with central meridian；Axis of abscissas x is projected as with equator,
It is just, so as to form plane right-angle coordinate eastwards to provide x-axis；
（1.2）Calculate the span [- w, w] of x-axis, the span [- h, h] of y-axis respectively according to projection pattern；
（1.3）Provide that drawing coordinate system is to be used as origin using the upper left corner according to power system figure Description standard（0,0）, x seats
Mark is incremented by the right, and y-coordinate is incremented by downwards；
（1.4）Projection coordinate's value is converted to according to below equation the coordinate value under Power Graphics System coordinate system：
x= gisX + w；
y = h – gisY；
Wherein x, y represent the x and y coordinates value under Power Graphics System coordinate system respectively；GisX, gisY represent projection coordinate respectively
X and y coordinates value under system.
Preferably, step（1）It is middle to calculate the conventional projected coordinate system of geo-spatial data, thrown with central meridian and equator
The intersection point of movie queen is the origin of coordinates, and axis of ordinates y is projected as, it is specified that y-axis is northwards for just with central meridian；With the throwing in equator
Shadow is axis of abscissas x, it is specified that x-axis is just eastwards, so as to form plane right-angle coordinate.According to the projection pattern of projected coordinate system
The span [- w, w] of x-axis, the span [- h, h] of y-axis are calculated respectively.Power system figure Description standard provides, electric
Power graphics system drawing coordinate is to be used as origin using the upper left corner（0,0）, x coordinate is incremental to the right, and y-coordinate is incremented by downwards.According to
Lower formula is converted to projection coordinate's value the coordinate value under Power Graphics System coordinate system：
x = gisX + w ;
y = h - gisY;
Wherein x, y represent the x and y coordinates value under Power Graphics System coordinate system respectively；GisX, gisY represent projection coordinate respectively
Longitude and latitude under system.
Compared with prior art, beneficial effects of the present invention are：The dependence to business software can be reduced first, saved into
This, while the research and development time using research staff is reduced, operating efficiency is improved, secondly can be melted well with Power Graphics System
Close, finally the module be easy to engineering staff grasp, it is simple efficiently, beneficial to engineering popularization.
Brief description of the drawings
Fig. 1 is the electric power GIS module realizing method flow chart based on Power Graphics System；
Fig. 2 is projected coordinate system and electric power graphs coordinate system relation schematic diagram；
Fig. 3 is Web Mercator projection coordinate system schematic diagrames；
Fig. 4 is that the electric power GIS module based on Power Graphics System realizes schematic diagram.
Embodiment
Below in conjunction with the present invention accompanying drawing, using geo-spatial data, electric data Web Mercator projections coordinate system as
Technical scheme is clearly and completely described example.
A kind of electric power GIS module realizing method based on Power Graphics System, its implementation process are：
Step 1：Projected coordinate system used in analysis foundation geodata and power equipment data；Determine Power Graphics System coordinate
Transformational relation between system and projected coordinate system, and obtain the public affairs of the conversion between projected coordinate system and electric power graphs coordinate system
Formula.
1.1：Web Mercator projection coordinate systems（Fig. 3）, using equator as standard parallel, the first meridian passes through as center
Line, both intersection points are the origin of coordinates, and y-axis is northwards for just；X-axis is eastwards for just.
1.2：X-axis span is [- 20037508.3427892,20037508.3427892], y-axis span for [-
20037508.3427892 20037508.3427892].
1.3：Power Graphics System coordinate system is to be used as origin using the upper left corner（0,0）, x coordinate is incremental to the right, and y-coordinate is downward
It is incremented by.
1.4：Projection coordinate's value is converted to according to below equation the coordinate value under Power Graphics System coordinate system：
x =gisX +20037508.3427892 ;
y = 20037508.3427892 - gisY ;
Wherein x, y represent the x and y coordinates value under Power Graphics System coordinate system respectively；GisX, gisY represent projection coordinate respectively
X and y coordinates value under system.
Step 2：The Web Mercator projection coordinate values of geo-spatial data are converted under Power Graphics System coordinate system
Coordinate value.According to the coordinate value loading geo-spatial data under Power Graphics System coordinate system and draw displaying.
Step 3：Coordinate value projection coordinate's value of power equipment data being converted under Power Graphics System coordinate system.Root
According to the coordinate value loading electric data under Power Graphics System coordinate system and draw displaying.
Step 4：The basic operational functions such as addition positioning, translation, scaling, realize the electric power GIS module of lightweight（Fig. 4）.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (2)
1. a kind of electric power GIS module realizing method based on Power Graphics System, it is characterised in that comprise the following steps：
（1）Projected coordinate system used in analysis foundation geodata and power equipment data；Determine Power Graphics System coordinate system
Transformational relation between projected coordinate system, the conversion that parsing is obtained between projected coordinate system and Power Graphics System coordinate system are public
Formula；
（2）Coordinate value projection coordinate's value of geo-spatial data being converted under Power Graphics System coordinate system, according to electric power
Coordinate value under graphics system coordinate system loads geo-spatial data and draws displaying；
Coordinate value projection coordinate's value of power equipment data being converted under Power Graphics System coordinate system, according to electric power graphs
Coordinate value under system coordinate system loads electric data and draws displaying；
（3）Operational motion is added for GIS modules, realizes the electric power GIS module of a lightweight.
2. according to the method for claim 1, it is characterised in that the step（1）Implementation process be：
（1.1）The conventional projected coordinate system of geo-spatial data is parsed, using the intersection point after central meridian and equatorial projection as seat
Origin is marked, axis of ordinates y is projected as, it is specified that y-axis is northwards for just with central meridian；Axis of abscissas x is projected as with equator,
It is just, so as to form plane right-angle coordinate eastwards to provide x-axis；
（1.2）Calculate the span [- w, w] of x-axis, the span [- h, h] of y-axis respectively according to projection pattern；
（1.3）Provide that drawing coordinate system is to be used as origin using the upper left corner according to power system figure Description standard（0,0）, x seats
Mark is incremented by the right, and y-coordinate is incremented by downwards；
（1.4）Projection coordinate's value is converted to according to below equation the coordinate value under Power Graphics System coordinate system：
x= gisX + w；
y = h – gisY；
Wherein x, y represent the x and y coordinates value under Power Graphics System coordinate system respectively；GisX, gisY represent projection coordinate respectively
X and y coordinates value under system.
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Citations (3)
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| CN102279407A (en) * | 2011-03-02 | 2011-12-14 | 河南送变电建设公司 | Method for correcting global positioning system (GPS) of electric transmission line poles and towers |
| US20130139114A1 (en) * | 2009-07-17 | 2013-05-30 | Wxanalyst, Ltd. | Transparent interface used to independently manipulate and interrrogate n-dimensional focus objects in virtual and real visualization systems |
| CN106056465A (en) * | 2016-05-20 | 2016-10-26 | 国网辽宁省电力有限公司大连供电公司 | Alarm range display method based on power grid flow diagram |
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2017
- 2017-07-04 CN CN201710539459.2A patent/CN107346247A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130139114A1 (en) * | 2009-07-17 | 2013-05-30 | Wxanalyst, Ltd. | Transparent interface used to independently manipulate and interrrogate n-dimensional focus objects in virtual and real visualization systems |
| CN102279407A (en) * | 2011-03-02 | 2011-12-14 | 河南送变电建设公司 | Method for correcting global positioning system (GPS) of electric transmission line poles and towers |
| CN106056465A (en) * | 2016-05-20 | 2016-10-26 | 国网辽宁省电力有限公司大连供电公司 | Alarm range display method based on power grid flow diagram |
Non-Patent Citations (1)
| Title |
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| 许辉: "基于Web墨卡托投影地理信息系统设计与实现", 《电脑编程技巧与维护》 * |
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Application publication date: 20171114 |