Automatic drawdown software for the database map of the two-tune land use

Two-tune Land use database

automatic drawdown software [smilemap] Introduction

(Description: The GIS platform software has been updated from ArcGIS9.3 to ArcGIS10.0)

(a) Introduction to the Software interface:

Automatic drawdown control main program (C # Development: Internal FME driven for fully automated process, parametric processing)

Manual drawdown Assistance Program (ArcGIS Engine 9.3 Development: Narrow polygon selection, annotation, charting, reporting, quality check)

The handler is implemented in the FME + C # + ArcGIS 9.3 program, which basically implements the automatic operation of the drawdown operation process. During the downsizing process, highly complex geometric calculations, automated (process-based) processing steps were taken. 90-95% task to computer completion (around 5% or 0.5~1 days for manual intervention treatment). Increase the artificial efficiency more than 10 times times.

• Process processing (FME Inside) within the program in accordance with the pre-configured "drawdown rules". Drawdown and post-processing calculations are completed consecutively.

• Parametric control of drawdown process: based on the specifications stipulated in the GB document, the user can also modify the configuration according to the test area characteristics.

• One machine can perform the automatic drawdown of two counties at the same time without unattended operation. One person can supervise multiple machines crazy batch processing.

L Accept Data Format: Mapgis file, ArcGIS (shape file/File geodatbase folder/Access file).

L Output Data format: Mapgis file, ArcGIS (Shape/file geodatbase/access), MapInfo file.

L implementation of scale from 1:5,000 to 1:1/5/10/25/50/100/400 of the downsizing process. Regional/provincial-level puzzles can be downsized.

L at the same time have a manual mapping interface, complete mapping, data selection, editing, statistical reports, data browsing inspection and other functions.

When actually using the software, the user only needs to do:

1: The program comes with a wizard, new drawdown area, the two-tuning results data in Mapgis or ESRI (Shape file, file geodatase or Access file) and placed in the specified format of the drawdown Data folder At the same time, produce the authorization characteristic file (to produce the authorization description file by the provincial administrative area file xzq.shp, all the original data files); The user obtains the customer License authorization file and pays for the software author, and the one-time payment is only applicable to this year's data in this area, and the data will be invalidated after the change.

2: Run the program, read the specified drawdown Data folder, a small number of parameter settings, and process the drawdown. In addition to the narrow surface of the selection and cutting needs a certain manual participation, the other drawdown process all realized automatically. all the operation of the spot, the selection of the linear figure (thinning) has been automatically processed, without requiring the operator to have strong drawdown skills and knowledge to master the drawdown operation.

3: Other necessary manual post-processing (note selection, statistical reports, graphic printing, quality visual inspection).

(ii) Description of drawdown characteristics:

1: All drawdown process parameterization: Users can pre-modify the Access database configuration file to specify the drawdown effect. By using the two-class numerical value as the key word, several control values are set for the drawdown process, which achieves the effect of fully parameterized control.

2: Drawdown ratio: from 1:10,000 à1:400 million. (Raw data scale is 1:5000/10000)

3: The scope and area of the entire survey area by the provincial level issued XZQ.SHP constraints. Can ensure that the area of the village unchanged, the township within the same area, boundaries within the area unchanged. To achieve the drawdown before and after the area of the same, the boundary without gaps.

4: The area of each township/village remains unchanged. The plot was reduced to a township/village area. However, in the case of the reduction of the area of Hongo, there is exchange between the villages within the township and the area of the land.

5: The strip is transformed into a linear figure. Can specify which classes can be converted to linear figures. The line width after the conversion is pre-judged. (but not all narrow faces will change line: Protected water network, you can continue to maintain the surface characteristics.) ）

6: Adjacent Fusion: A class of two, a class, the smallest area and other parameters to determine the comprehensive order. In the adjacent fusion, some of the annexed small patches are converted into scattered figures according to the rules, and participate in the subsequent area deduction calculation, which makes the two-class statistic more balanced.

7: Scattered Fusion: residents, reservoirs and other types of land if the distance is too close to occur fusion. The program built in a variety of types of scattered fusion of "weight" sequence, to ensure that the gland relationship is reasonable.

8: Figure exaggeration: Mining, residential and other important categories of the smallest area of the individual settings. Exaggerated handling can be set to preserve important figures.

9: Water networks, road network protection + long-narrow surface widening treatment, to prevent the transformation of important surface objects into a linear form. This is very useful in the preservation of important highways and rivers.

10: In the process of downsizing and simplification, we realize right angle protection and long-narrow sharp angle removing function.

11: The boundary of the map spot is treated by the curve extraction and thinning according to the regulation. The reduction of the surface boundary can lead to: quality drawdown / Wall Chart drawdown / Smart Simplification 3 types of drawdown effect. Regardless of the drawdown, the outermost boundaries of the boundary and the administrative area are maintained in a consistent manner, not beyond the bounds of grin.

12: Linear figures are based on grade, width and length. Through the parallel spacing limit, the length limit, the network connectivity guarantee (village pass, road network and water net smoothness), linear density limit, mesh size Limited Index intelligent selection of linear features, basically do not need to participate in human to complete excellent selection effect. This is done in the traditional manual drawdown, which must depend entirely on artificial experience.

After the change of the patch boundary, the linear figure which was interspersed with the pattern of the speckle boundary is still in the correct topological relationship through the "fit" algorithm. This is a major flaw and difficulty in the traditional manual drawdown.

13: Can be combined with arcsde+oracle, the output drawdown before and after the area statistical report, in order to compare and analyze the correctness of drawdown.

14: Not only to achieve a single test area of the drawdown process fully automatic, but also can be multi-test Area batch processing, unattended.

15: Provide an off-the-shelf ArcGIS symbol library to observe the similarity of the rendering patterns before and after drawdown of the entire area, and to visually check the correctness of drawdown. The chart is automatically generated with a small amount of decoration to output the wall chart of the survey area.

(iii) Summary of the drawdown process:

1: Automatic data preprocessing: Aggregation Township/village range, for subsequent processing decision processing range and unit list. For water/road network protection pretreatment (set: Dltb.tbybh=1 ...).

2: Automatically perform a à node capture operation (the nodes of the map and line figures are aligned to the ground, eliminating the node drift).

3: Automatic execution of a long and narrow figure to turn the line figures. Merge the cross-section of the narrow polygon, the center of the broken surface and the two sides annexation.

4: Automatic execution of a hash surface of the fusion operations (such as residential land and other features, the occurrence of similar fusion).

5: Automatic implementation of a map of the district drawdown. For adjacent fusion processing. Produce sporadic figures.

6: Automatic implementation of the zonal drawdown of the results of the merger, simplification, numbering, the administrative area to constrain the entire area, the elimination of small cracks.

7: Automatic execution of the object exaggerated processing. To protect important figures.

8: Automatic implementation of a water network, road networks, protective gland + narrow surface widening treatment. The protection of important figures is mapped with polygon elements.

9: Automatic execution of a ground class symbol point generation, the generation of the boundaries of the ground.

10: Automatic implementation of a linear figure of the intelligent extraction of the selection, broken line connection, and land-type map adjacent to the relationship between the processing of area allocation.

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11: Manual view of the results of the correctness, rationality, parameter adjustment after the return processing (try again).

12: Water network, road network, such as the demand in the late artificial completion, correction.

13: Manual processing à text selection, annotation label generation

14: Results management à use of management software: Area acreage, reports, automatic generation of wall charts and two processing (notes, etc.).

15: Data Packaging: Converting to other target electronic data formats. Formats such as Mapinfo, MapGIS, and ArcGIS.

(iv) Main results of the automatic drawdown:

1: Ground class pattern Plaque dltb_sb_result.shp

2: Linear figures xzdw_sb_result.shp

3: Sporadic objects Lxdw_sb_result.shp

4: Ground class boundary dljx_sb_result.shp

5: Canton Xzq_sb_result.shp

6: Administrative Boundaries XZQJX_SB_RESULT.SHP

7: Basic Farmland JBNTBHTB.SHP

(v) Software licensing and data security design:

1: Use XZQ.SHP + 6 counties Code (or 4-bit city-level code) to generate an authorization file to license the software to execute. Remote e-mail authorization can also be directly authorized on-site.

2: Software authors do not contact the data of party A, both parties only need to authorize the operation. The drawdown process is controlled by the data producers themselves.

3: Handlers and processing rules are encrypted. Processing rules are customized by the software author.

(vi) Historical background and experience in research and development

1: Over 3 years, research and development personnel engaged in land resources development more than 15 years, from beginning to end adhere to achieve "fully automatic" downsizing as the goal.

2: Experience the participation and dedication of departments, companies, and individuals in multiple regions. Chongqing, Chengdu, Wuhan, Beijing, Tianjin, Jiangxi, Shenyang, Guangzhou and other land research and development.

3: The drawdown of more than 60 area data has been measured. Including Jiangsu, Hainan, Sichuan, Tibet, Henan, Hebei, Hubei, northeast, Yunnan and other types of landscape data. Can handle 1:5,000 road network/water networks intensive data in Jiangsu (Guangdong etc).

4: Two-time development based on international first-class platform algorithms such as FME and ArcGIS, supporting domestic mainstream GIS data formats (input and output Mapgis, etc.). The underlying algorithm is advanced, the processing process is reliable, the control means are varied and the level of presentation is abundant.

(vii) Software drawdown algorithm effect example

Examples of algorithms: the recognition of narrow faces, the central axis of and the elimination of the shape of the narrow polygon elements	Algorithm example: Narrow surface to center line, face is crushed (Preparation for annexation and elimination)
Algorithm example: to the area size, the ground class code as the grouping rules of the broken surface annexation, red thick line for the integrated border, the fine lines for the previous boundary (color is not the two-tone rules of the color system, only indicative description)	Algorithm example: Integration of Settlement hash (The picture shows the merging of 3 adjacent hash faces)
Examples of quality drawdown algorithms: Thin-drawn and small-curved straight smoothing processing of curved nodes (For Master plan revision effect is more ideal)	An example of an axial preprocessing algorithm for long and narrow objects: linear objects are divided into three levels, construction nets, primary and secondary distinguishing cutting, attribute assignment and auxiliary work (for the processing of dense road network/water networks, such as Jiangsu/Guangdong and other land 1:5,000 of the original data drawdown has special effects)
The following classes of ground-class plaques are the default protection values: 101,102,104,105,111,117,118,201,202	Intelligent thinning experience of linear features: Similar short-term string connection, suspension characteristics calculation, parallel spacing limit, length limit, density limit, connectivity protection, mesh density limitation and elimination of small mesh. The process parameters are based on the parameters stipulated in the drawdown technical document of the Ministry of Land and Resources.
Right Angle protection
	Line veneer: Guarantees the topological relationship between the ground and line figures after the simplification is maintained

(eight) software development and Process Control technology

Control of thinning parameters for linear ground objects
Simultaneous execution of two survey area drawdown batch tasks
Background process monitoring: anti-"suspended animation", automatic elimination of Error alarm message box, drawdown log view, interrupt processing process

(ix) Efficiency and hours, costs

1: Manual Operation one: long and narrow pattern before the axis of the pre-selection (including cutting operations). According to the complexity of the test area, from a few minutes, hours, to 1-2 days, the general survey area will not exceed half a day. The manual drawdown Assist program integrates specific tools (polygon segmentation, Attribute point selection Modification).

2: Manual Operation II: By-election of line-like figures. In the software after the intelligent extraction of linear features, if the results are not rigorous enough, you can manually re-by-election of some figures, in order to increase the road network, water networks, villages and towns of connectivity. 1-2 hours, usually not more than half a day. The manual drawdown Assist program integrates specific tools (line segmentation, cross-layer line copying, line deletion).

3: Manual operation of the third: cartography operation, soon. Due to the manual drawdown process, the depth of custom surveying area wall chart function. Manual main add annotation, perform printing. Print helper elements can be automatically generated according to preset parameters.

4: Manual operation of the four: a visual look at the map. Manual-assisted downsizing has been integrated with the data loading of commonly used search charts, visual inspection tools (flashing, transparent, rolling blinds). Manual visual inspection can be staged several times (after the middle axis, after downsizing, after simplification, the line-like objects after thinning).

5: Optional operation--topology check and graphics defect fine-grained exclusion. 1-2 hours is enough.

6: Optional operation--report. The current version requires the installation of Oracle and ARCSDE (the reporting feature of this program is from the two tuning data repository).

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Automatic drawdown software for the database map of the two-tune land use