CN104850902A - Regional agricultural key farming season online visualization prediction method - Google Patents
Regional agricultural key farming season online visualization prediction method Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000009313 farming Methods 0.000 title claims description 36
- 238000012800 visualization Methods 0.000 title claims description 7
- 230000000007 visual effect Effects 0.000 claims abstract description 20
- 238000009331 sowing Methods 0.000 claims description 15
- 241001275944 Misgurnus anguillicaudatus Species 0.000 claims description 14
- 238000003306 harvesting Methods 0.000 claims description 13
- 230000010365 information processing Effects 0.000 claims description 9
- 230000009466 transformation Effects 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 4
- 230000004044 response Effects 0.000 claims description 4
- 238000004364 calculation method Methods 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims description 2
- 238000005259 measurement Methods 0.000 claims 1
- 238000003860 storage Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 10
- 239000003973 paint Substances 0.000 description 7
- 238000012271 agricultural production Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000009877 rendering Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
本发明公开了一种区域农业关键农事季节在线可视化预报的方法，包括以下步骤：步骤1、利用Arcmap制作区域农业地图底图并发布；步骤2、建立关键农事季节的地理信息处理模型并发布地理处理服务；步骤3、对关键农事季节区域的绘制；步骤4、进行距离和面积量算；步骤5、调整关键农事季节绘制区域的边界；步骤6、确定和输出关键农事季节可视化最终结果图。本发明的方法，能够以图表的方式结合地图，直观的将农事季节随着时间和空间变化展现出来；借助先进的网络技术和地理处理技术更能高效合理的安排农事种植，具有高效、便捷、可视化特点。
The invention discloses a method for online visual forecasting of key agricultural seasons in regional agriculture. Processing service; step 3, drawing the key agricultural season area; step 4, calculating the distance and area; step 5, adjusting the boundary of the key agricultural season drawing area; step 6, determining and outputting the final visual result map of the key agricultural season. The method of the present invention can be combined with maps in the form of charts to intuitively display the agricultural seasons as time and space change; with the help of advanced network technology and geographic processing technology, agricultural planting can be arranged more efficiently and reasonably, with high efficiency, convenience, Visual features.
Description
Technical field
The invention belongs to regional agriculture production management and meteorological hazard prediction early warning technology field, relate to the method for the crucial farming season online visual forecast of a kind of regional agriculture.
Background technology
In recent years, agrometeorological hazard occurrence frequency is high, kind is many, scope is wide, and meteorological disaster directly affects agricultural production, and during mostly occurring in crucial farming season.For Regional Distribution rule and the occurrence characteristics of meteorological disaster, before Hazard Meteorological arrives, guiding agricultural production is carried out in order, completes spring ploughing smoothly and sows in spring, harvests and sows in summer, and autumn harvest autumn sowing becomes particularly crucial.
Current key farming season Meteorological Services is by government departments such as weather bureaus mostly, the foundation twenty-four solar terms, 72 pentad are main criteria, adopt the mode of manual input text, guiding agricultural production is carried out with the form of fat file notice, usually with poor in timeliness, cover comprehensively, areal variation not obviously, the problem such as performance is not directly perceived, be difficult to ensure carrying out smoothly of farming activities.
Summary of the invention
The object of this invention is to provide the method for the crucial farming season online visual forecast of a kind of regional agriculture, to solve in prior art mainly government department and formulate file, the foundation twenty-four solar terms, 72 pentad are main criteria, adopt the mode of manual input text, carry out guiding agricultural production with the form of fat file notice, there is poor in timeliness, cover not comprehensively, areal variation is obvious not, show not problem intuitively.
The technical solution adopted in the present invention is, the method for the crucial farming season online visual forecast of a kind of regional agriculture, comprises the following steps:
Step 1, Arcmap is utilized to make regional agriculture map base map issuing;
Step 2, the geographic information processing model of foundation crucial farming season are also issued geography and are processed service;
Step 3, drafting to region of crucial farming season;
Step 4, carry out Distance geometry area measuring;
The border of step 5, adjustment key farming season drawing area;
Step 6, determine and export crucial farming season visual net result figure.
The invention has the beneficial effects as follows, the mode of the method sing on web GIS, relevant weather personnel, in the process making crucial farming season weather forecast product, can take into account the conditions such as phenology meteorology while dependence solar term; Not merely rely on the form of word, in the mode of chart in conjunction with map, intuitively farming season can be shown along with Time and place changes; By the arrangement farming plantation that network technology and the geographical treatment technology of advanced person more can be efficient and rational, for agricultural production escorts; Have efficient, convenient, visual feature, can reduce meteorologist's workload in key farming season reporting services to a great extent, simplify the operation flow process, and General Promotion meteorology is agriculture service ability.
Accompanying drawing explanation
Fig. 1 is the map base map of the inventive method embodiment presumptive area;
Fig. 2 is the transaction module figure of the inventive method presumptive area;
Fig. 3 is the crucial farming season presumptive area polygon rendering figure of the inventive method;
Fig. 4 is the inventive method crucial farming season presumptive area process service execution result schematic diagram.
In figure, 1. state circle, 2. county's name, 3. circle of county.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
The method of the crucial farming season online visual forecast of regional agriculture of the present invention, comprises the following steps:
Step 1, Arcmap is utilized to make regional agriculture map base map issuing;
Step 2, the geographic information processing model of foundation crucial farming season are also issued geography and are processed service;
Step 3, drafting to region of crucial farming season;
Step 4, carry out Distance geometry area measuring;
The border of step 5, adjustment key farming season drawing area;
Step 6, determine and export crucial farming season visual net result figure.
Below for Meteorological Services of harvesting and sowing in summer in the crucial farming season of state, Linxia, Gansu Province, the concrete steps of the inventive method are described in detail.
Step 1, Arcmap is utilized to make regional agriculture map base map issuing
First, Arcmap desktop software is utilized to carry out registration and rectification to administrative region at county level, national city map, therefrom cut out the local geographic information of face layer and the zone boundary of line chart layer of setting administrative region, as shown in Figure 1, embodiment is cities and counties belonging to state, Linxia, Gansu Province, comprise the state circle 1 in state, Linxia, county's name 2 and circle of county 3, a service definition file is created after producing map base map (document), its suffix is set to .sd, be a portable file again by service definition Document encapsulation, wherein contain Service Properties, the relevant information such as function and COS,
Then, input the URL address http://< server name >:6080/arcgis/manager/ of ArcGIS Server (service managerZ-HU) in a browser, with keeper (Manager) identity logs service managerZ-HU, select the service definition file that will issue in Services tab in service managerZ-HU, click next step input service newname; In default situations, service definition file is by under being distributed to catalogue file folder specified in service managerZ-HU configuration; Clicking issue, is Map Services by service definition file distribution.
Step 2, the geographic information processing model of foundation crucial farming season are also issued geography and are processed service
Utilize the model constructor in Arcmap, cutting order is performed in ArcToolbox, arranging input parameter type is Feature set, as Fig. 2, using state, Linxia map as base map (i.e. cutting key element), input polygon (input key element) state, cutting Linxia map, input key element, cutting key element and output key element are all set to model parameter, so far, geographic information processing model is set up complete;
Run this geographic information processing model, on service managerZ-HU, be shared as geographical process service by running the result successfully, service execution mode is asynchronous execution, chooses " returning results Map Services " option.
Step 3, drafting to region of crucial farming season
3.1) the service season that selection will be drawn in control panel and paint type, wherein serve that Season select spring ploughing is sowed in spring, summer harvesting and sowing, autumn harvest autumn sowing or other opportunitys, the paint type that corresponding spring ploughing is sowed in spring has following one week suitable sowing division, be comparatively suitable for sowing division, be not suitable for sowing division and other; The paint type of corresponding summer harvesting and sowing has heading, blooms, milking maturity, will gather in, gather in, gathered in and other, and the paint type of corresponding autumn harvest autumn sowing has will be gathered in the crops, gathering in the crops and gathering in the crops;
A kind of color block of choosing that can be corresponding when selecting paint type carries out distinctiveness display on map.
3.2) the self-defined figure of reading and saving in XML file, shows on the map base map layer that is added to after completing.
3.2.1) by calling a dojo.xhrGet function in Dojo kit in HTTP request, carry out requested database server (be two different equipment from the service managerZ-HU in step 1) resource in URL mode, access obtains the address that graphical page getGraphic.aspx and URL identifies;
3.2.2) be Json character string by XML data Content Transformation, define a StringBuilder object on the backstage of page getGraphic.aspx, the path path according to XML file finds XML file; By the property content of the label in XML file and label, be spliced into a Json character string according to the AppendFormat method of StringBuilder object, finally return this Json character string;
3.2.3) to step 3.2.2) in the JSon string data that returns carry out pre-service, then pass to the call back function of load properties point in dojo.xhrGet function, call back function can be called after the database server resource of request successfully return;
3.2.4) the function graphics.add that call back function performs in ArcGIS API for javascript adds self-defined figure to map base map and shows;
3.3) define drawing tools and drafting polygon Show Styles is set
Definition drawing instrument toolbars.Draw, in ArcGIS API for Javascript, event response process function map.on loads successfully at map base map and activates drawing instrument, the color of filled polygon is set, wherein the rgb value of Fill Color is random value, as shown in Figure 3, map is clicked with mouse and draws out a polygonal region along a direction, represent " will gather in " regional extent in summer harvesting and sowing Meteorological Services with this.
3.4) drawing area call geographical process service
Using step 3.3) in the polygonal region drawn as geography process import of services parameter, call geographical process service.
Because three parameters (namely input key element, cutting key element and export key element) of geographic information processing model in step 2 are all model parameters, parameter can change flexibly, such as, select as required to arrange the map that cutting key element is state, Linxia map or certain counties and cities of subordinate, state, Linxia.
3.5) delete step 3.3) the middle polygon drawn, by step 3.4) in geographical process service operation result to be added to map base map layer, according to paint type color corresponding under COS in control panel, rendering result layer, as shown in Figure 4, if what when drawing polygon, COS was selected is summer harvesting and sowing Meteorological Services, what corresponding paint type was selected is to gather in, will gather in corresponding color is RGB (255, 0, 255), region " will be gathered in " with this color rendering, other regions simultaneously on map are covered by the polygon of different colours respectively, the distribution of summer harvesting and sowing different phase spatial visualization is represented with this, thus guiding agricultural production is carried out in order more intuitively.
Step 4, carry out Distance geometry area measuring
4.1) projective transformation
The coordinate system at map base map place is geographic coordinate system, need to be transformed into plane coordinate system (corresponding to computer screen), only be in plane coordinate system and just can carry out Distance geometry area measuring, so will projective transformation be done, carry out the conversion of coordinate system.
If calculate the conversion apart from then adopting " isogonism " to project, if the conversion that reference area then adopts " equivalance " to project.
4.2) the amount calculation of distance or area is carried out according to the line drawn or face
Judge that geometric figure type is line (polyline) or face (polygon), if just carry out lengths distance exam for line type; If simplify face operation for Noodles type needs first to carry out simplify, and then carry out area measuring.
The border of step 5, adjustment key farming season drawing area
Definition edit tool toolbars.Edit, activates drawing instrument in event response process function map.on;
Choose the region of crucial farming season generated in step 3, editor's break of region, can editor be pulled to the single break in border or translation be carried out to region entirety, such as choose " will gather in " region in summer harvesting and sowing farming season, all breaks of zone boundary are activated, both can carry out dragging editor by mouse, also can move integrally whole " will gather in " region.
Step 6, determine and export crucial farming season visual net result figure
6.1) region of crucial farming season in determining step 5 after adjustment
6.1.1) by calling a dojo.xhrGet function in Dojo kit in HTTP request, requested database server resource is carried out in URL mode, the address that the access Delete Shape page deleteFile.aspx and URL identifies, a judgement is done on Delete Shape page backstage, judge whether XML file exists, if existed, then carry out deleting the operation of this XML file;
6.1.2) attribute of polygonal region is set, mainly id and title, adopts the mode that parameter is corresponding.All polygonal regions covered on map base map after adjustment last in step 5 are read out, the corresponding id of each polygonal region, title all called after graphic of all polygonal regions, by calling dojo.toJson function in Dojo kit, will all polygonal regions be got and be converted to Json format string;
6.1.3) the Json character string of all polygonal regions is submitted to database server to preserve, an XmlDocument object is defined on the backstage of page saveGraphic.aspx, the path path of XML file is set, by the Json character string of all polygonal regions, according to the label of the SelectSingleNode method splicing XML file of XmlDocument object, with the tag attributes content of the CreateElement method of XmlDocument object splicing XML file, with this, all graphical informations are saved as XML file;
6.2) preserve and export final visualization result of crucial farming season
Call the PrintingTools service in ArcGIS API for Javascript, adopt predefined map base map layout, adjustment resolution obtains map base map image (namely by deriving such map requests), export key farming season prog chart, thus more convenient shared visual achievement.
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| CN110647573A (en) * | 2019-09-17 | 2020-01-03 | 泰华智慧产业集团股份有限公司 | Chart visual editing method and system based on database technology |
| CN111400420A (en) * | 2019-10-22 | 2020-07-10 | 上海凯泉泵业（集团）有限公司 | Method for calling geographic information processing service based on geographic information system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112989149A (en) * | 2019-12-13 | 2021-06-18 | 广州极飞科技股份有限公司 | Information display method and device and electronic equipment |
| CN114429508A (en) * | 2020-10-15 | 2022-05-03 | 中国石油化工股份有限公司 | Method, device, electronic equipment and medium for compiling digital oil and gas exploration degree map |
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Application publication date: 20150819 |