CN110084515A - A kind of river XiLin disk evaluation model construction method based on ArcGIS platform - Google Patents
A kind of river XiLin disk evaluation model construction method based on ArcGIS platform Download PDFInfo
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Abstract
The invention discloses a kind of river XiLin disk evaluation model construction method based on ArcGIS platform, comprising: formulate the assessment indicator system of river XiLin disk；River XiLin disk assessment indicator system includes level-one evaluation index, two-level appraisement index and metrics evaluation item, and carries out weight assignment for a two-level appraisement index；Wherein it is determined that in the assessment indicator system index at different levels evaluation method are as follows: metrics evaluation item is evaluated to obtain the evaluation of estimate of two-level appraisement index；The evaluation of estimate of two-level appraisement index is weighted to obtain the evaluation of estimate of level-one evaluation index by its corresponding weight；The evaluation of estimate of level-one evaluation index is weighted to obtain overall assessment result by its corresponding weight；In ArcGIS model constructor, according to two-level appraisement index, subitem evaluation model is established using related tool；According to level-one evaluation index, overall assessment model is established using related tool.Quantization, standardization, procedure, the automation of the disk appraisal of river XiLin are pushed through the invention.
Description
Technical field
The present invention relates to environmental evaluation technical field, especially a kind of river XiLin disk evaluation model based on ArcGIS platform
Construction method.
Background technique
Application of the GIS technology in the planning construction of China Urban Areas is increasingly mature, and in grass roots planning construction
And management aspect, GIS technology application also compare lag, for river XiLin disk evaluation in terms of research more lack.Chuan Xi
Woods disk evaluation model is a kind of with targetedly evaluation model, and there is no standardization and systematization, traditional evaluation sides at present
The problem of method and means are primarily present the following aspects and defect:
1, traditional assessment technique more falls behind, and new technology is higher using threshold, and technical operation is caused not catch up with theory
The paces of research；
2, traditional evaluation means are more perceptual, mostly use qualitative analysis method and means, lack the data supporting of quantization,
Scientific and reasonability has to be hoisted；
3, traditional evaluation method and means are time-consuming and laborious, need manually to calculate, working efficiency is lower more；
4, traditional evaluation method and means are unfavorable for the systematization, standardization and storage of workflow, in work next time
As when need to think deeply again process, recycling rate of waterused is extremely low；
5, traditional evaluation method is unfavorable for displaying and the Visualization of achievement and procedure file, the persuasion of scheme compared with
It is weak；
6, traditional evaluation method and means are more focused on theoretical method, are technically difficult to realize attribute and knot spatially
It closes.
Summary of the invention
The technical problems to be solved by the present invention are: in view of the above problems, providing a kind of based on ArcGIS platform
River XiLin disk evaluation model construction method, the river XiLin disk evaluation model constructed through the invention, push river XiLin disk evaluation
Quantization, standardization, procedure, the automation of work, reduce new technology uses threshold, increases substantially working efficiency, is promoted
Science, the reasonability of scheme.
The technical solution adopted by the invention is as follows:
A kind of river XiLin disk evaluation model construction method based on ArcGIS platform, comprising the following steps:
(1) assessment indicator system of river XiLin disk is formulated；River XiLin disk assessment indicator system includes that level-one evaluation refers to
Mark, two-level appraisement index and metrics evaluation item, and weight assignment is carried out for a two-level appraisement index；Wherein it is determined that the evaluation
The evaluation method of index at different levels in index system are as follows: metrics evaluation item is evaluated to obtain the evaluation of estimate of two-level appraisement index；
The evaluation of estimate of two-level appraisement index is weighted to obtain the evaluation of estimate of level-one evaluation index by its corresponding weight；By one
The evaluation of estimate of grade evaluation index is weighted to obtain overall assessment result by its corresponding weight；
(2) in ArcGIS model constructor, according to two-level appraisement index, subitem evaluation mould is established using related tool
Type；
(3) on the basis of itemizing evaluation model building, according to level-one evaluation index, overall comment is established using related tool
Valence model.
Further, in step (1): the method for carrying out weight assignment for a two-level appraisement index is expert graded, coupling
Close one of enabling legislation and Evaluation formula or multiple combinations.
Further, the level-one evaluation index includes: regional conditions a, self-condition b, auxiliary facility c, cultural resource d
With Industrial Function e；The weight assignment of level-one evaluation index is respectively as follows: regional conditions weight Wa, self-condition weight Wb, with being arranged
Apply weight Wc, cultural resource weight Wd and Industrial Function weight We；
The two-level appraisement index includes: geological location a1, Traffic area location a2 and Lv Dao position a3；Water body resource b1, woods
The wooden resource b2, farmland resource b3, Courtyard Space b4, environmental sanitation b5 and path resource b6；Infrastructure c1, public affairs take facility c2；
Material and culture d1 and nonmaterial culture d2；Industry Foundation e1 and development condition e2；The weight assignment of two-level appraisement index is respectively as follows:
Geological location weight Wa1, Traffic area location weight Wa2 and Lv Dao position weight Wa3；Water body resource weight Wb1, forest tree resource weight
Wb2, farmland resource weight Wb3, Courtyard Space weight Wb4, environmental sanitation weight Wb5 and path resource weight Wb6；Infrastructure
Weight Wc1, public affairs take facility weight Wc2；Material and culture weight Wd1 and nonmaterial culture weight Wd2；Industry Foundation weight We1 and
Development condition weight We2；
The metrics evaluation item include: away from urban district distance, away from scenic spot distance, away from township distance；Away from expressway entrance away from
From, away from main roads with a distance from；Away from the green track pitch in region from；Living space, Water quality；Percentage of forest cover, forest coordination of landscape degree,
Forest value；Farmland Landscape grace degree；Space skin texture harmony, architectural scene characteristic；Environmental sanitation tidiness；Outgoing road is just
Victory, internal passageway systematicness；The comprehensive property of infrastructure such as water, electricity and gas news；The public affairs such as quotient, doctor, text, body take very well equipped；
Provincial, city-level, historical relic at county level or ruins richness；Provincial, city-level, cultural heritage richness at county level；The existing superior degree of industry；It produces
Industry development potentiality.
Further, the evaluation of estimate of two-level appraisement index is weighted to obtain level-one evaluation by its corresponding weight
The calculation formula of the evaluation of estimate of index are as follows:
A=a1*Wa1+a2*Wa2+a3*Wa3；
B=b1*Wb1+b2*Wb2+b3*Wb3+b4*Wb4+b5*Wb5+b6*Wb6；
C=c1*Wc1+c2*Wc2；
D=d1*Wd1+d2*Wd2；
E=e1*We1+e2*We2；
The evaluation of estimate of level-one evaluation index is weighted to obtain based on overall assessment result by its corresponding weight
Calculate formula are as follows: Z=a*Wa+b*Wb+c*Wc+d*Wd+e*We.
Further, step (2), according to two-level appraisement index, is built in ArcGIS model constructor using related tool
Vertical subitem evaluation model includes:
The evaluation of the area position model established based on two-level appraisement index a1, a2, a3；
The self-condition evaluation model established based on two-level appraisement index b1, b2, b3, b4, b5, b6；
The auxiliary facility evaluation model established based on two-level appraisement index c1, c2；
The cultural resource evaluation model established based on two-level appraisement index d1, d2；
The Industrial Function evaluation model established based on two-level appraisement index e1, e2.
Further, step (3), according to level-one evaluation index, uses correlation on the basis of itemizing evaluation model building
The overall assessment model that tool is established includes: the overall assessment model established based on level-one evaluation index a, b, c, d, e.
Further, step (3), according to level-one evaluation index, uses correlation on the basis of itemizing evaluation model building
The method that tool establishes overall assessment model are as follows: on the basis of itemizing evaluation model building, " weighted sum " tool is used, it is right
Level-one evaluation index a, b, c, d, e is weighted according to the weight of level-one evaluation index, and the totality for obtaining river XiLin disk is commented
Valence is as a result, complete the building of overall assessment model.
Further, the data mode of the input data of river XiLin disk evaluation model is needed according to the metrics evaluation
Item determines；The form of the input data includes form attributes data and space vector data, using ArcGIS platform by table
Attribute data is mounted with space vector data, the basic input data as corresponding model；The basis input data
Data format is .shape.
Further, when the data mode of the input data determined according to metrics evaluation item is space vector data, make
With " polycyclic buffering ", " joint ", " addition field " and " calculated field " tool, space vector data is evaluated to obtain second level
The evaluation of estimate of evaluation index uses " face turnstile lattice " tool that two-level appraisement index is converted to raster data；
When the data mode of the input data determined according to metrics evaluation item is form attributes data, " addition word is used
Section " and " calculated field " tool, calculates the evaluation of estimate of the two-level appraisement index of form attributes data, use " face turnstile lattice " work
Two-level appraisement index is converted to raster data by tool；
" weighted sum " tool of use is weighted to obtain level-one to the two-level appraisement index for being converted to raster data
The evaluation of estimate of evaluation index, the corresponding building for completing subitem evaluation model.
Further, debugging and the setting of parameter should be carried out to established river XiLin disk evaluation model, and to setting
The input of each parameter provides descriptive language；The setting of the parameter includes input element, outgoing route and title, Yi Jibi
The variable modification wanted.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, the present invention is based on river XiLin disk evaluation model of ArcGIS platform construction, attribute data and space vector are realized
The combination of data, and it is able to achieve the Visualization of data, so that scheme is more intuitive, more rationally, with more persuasion property.
2, the present invention is based on river XiLin disk evaluation models of ArcGIS platform construction, use threshold reducing ArcGIS technology
While, than traditional evaluation method and means with more scientific, reasonability.
3, the present invention is based on river XiLin disk evaluation models of ArcGIS platform construction, qualitative analysis means are changed into quantitative
Analysis, data are accurately calculated, and result credibility greatly promotes.
4, the present invention is based on river XiLin disk evaluation model of ArcGIS platform construction, by appraisal procedure, systematization,
Standardization, automation, it is reusable in need of work next time, repetitive operation amount is greatly reduced, work is improved
Efficiency.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the work flow diagram of river XiLin disk evaluation model structure of the invention.
Fig. 2 is the assessment indicator system schematic diagram of river XiLin disk evaluation model of the invention.
Fig. 3 is the structural schematic diagram of river XiLin disk evaluation model of the invention.
Fig. 4 is the operation result exemplary visual effect picture of river XiLin disk evaluation model of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention, i.e., described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is logical
The component for the embodiment of the present invention being often described and illustrated herein in the accompanying drawings can be arranged and be designed with a variety of different configurations.
Therefore, claimed invention is not intended to limit to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but be merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not having
Every other embodiment obtained under the premise of creative work is made, shall fall within the protection scope of the present invention.
ArcGIS model constructor is the Measurement index for construction work stream, is one and is used to create, edit
With the application program of administrative model.Model is a series of workflow that geographical handling implements are cascaded, it will wherein one
Input of the output of a tool as another tool.According to specific work requirements, pass through the Combination Design of different tools, two
Secondary exploitation, can be formed has targetedly new tool model, to realize the procedure of relevant work, automation.
A kind of river XiLin disk evaluation model construction method based on ArcGIS platform provided by the invention, as shown in Figure 1-3,
Include:
(1) preparation of data
For the present invention is based on river XiLin disk evaluation models of ArcGIS platform, in order to reduce the error rate of model, use
.shape data format inputs river XiLin disk data.It is corresponding firstly the need of being prepared according to river XiLin disk assessment indicator system
Form attributes data and space vector data are mounted attribute data and space vector data using ArcGIS platform, are made
For the basic input data of corresponding model.
(2) evaluation of the area position model is constructed
After DSR, combination tool case constructs first subitem model in ArcGIS model constructor.Using " more
Ring buffering " tool carries out buffer finish blasting to the township of metrics evaluation item, urban district, scenic spot respectively, will be buffered using " joint " tool
It analyzes obtained data to be combined, " addition field ", " calculated field " tool is used to be assigned accordingly according to buffering result
Value calculates.
Further, it uses " face turnstile lattice " tool that data are switched to raster data according to evaluation of estimate, obtains geological location
The evaluation of estimate of a1；Similarly, buffer finish blasting is carried out to main roads, expressway entrance and exit using " polycyclic buffering " tool, obtained
To the evaluation of estimate of Traffic area location a2；Similarly, the evaluation of estimate of the position Lv Dao a3 is obtained.
Further, it to geological location a1, is handed over using " weighted sum " tool according to the weighted value of two-level appraisement index
Logical position a2, Lv Dao position a3 is weighted summation analysis, obtains the evaluation result of level-one evaluation index regional conditions a.So far,
It has been basically completed the building of evaluation of the area position model.
(3) self-condition evaluation model is constructed
The scoring item index of self-condition mostly come to status situation know the real situation and survey data, data type are table
Case form mounts the space vector data of list data and woods disk in ArcGIS, and " addition field " is used after mounting
Tool adds corresponding field in the attribute list of woods disk data, and uses " calculating " tool to respective field according to evaluation
The particular content of item carries out assignment: being evaluated Living space, Water quality to obtain the evaluation of estimate of water body resource b1；To forest
Coverage rate, forest coordination of landscape degree, forest value are evaluated to obtain the evaluation of estimate of forest tree resource b2；To Farmland Landscape grace degree
The evaluation of estimate to farmland resource b3 evaluated；Space skin texture harmony, architectural scene characteristic are evaluated to obtain courtyard
The evaluation of estimate of space b4；Environmental sanitation tidiness is evaluated to obtain the evaluation of estimate of environmental sanitation b5；It is convenient to outgoing road
Property, internal passageway systematicness are evaluated to obtain the evaluation of estimate of path resource b6.
Further, woods disk data are turned according to the evaluation of estimate of b1, b2, b3, b4, b5, b6 using " face turnstile lattice " tool
Be changed to raster data, then using " weighted sum " tool set corresponding two-level appraisement index weights to b1, b2, b3, b4,
The raster data of b5, b6 carry out the evaluation result that level-one evaluation index self-condition b is calculated.So far, it has been basically completed certainly
The building of figure part evaluation model.
(4) auxiliary facility evaluation model is constructed
The data of auxiliary facility scoring item are similar with self-condition, and data type is attribute data, mainly to status
The fishing expedition of situation.Main contents include that the comprehensive property of infrastructure, the public affairs such as quotient, doctor, text, body such as water, electricity and gas news take facility
Integrity.Main to use " addition field ", " calculated field " tool, specific steps can refer to the building side of self assessment model
Method calculates the evaluation of estimate of c1, c2.
Further, " face turnstile lattice ", " weighted sum " tool is used the evaluation of estimate of c1, c2 to be converted and assigned power meter
Calculation obtains the evaluation result of level-one evaluation index auxiliary facility c, is basically completed the building of auxiliary facility evaluation model.
(5) cultural resource evaluation model is constructed
The construction method and self-condition evaluation model of cultural resource evaluation model and the building of auxiliary facility evaluation model
Method is consistent, main to use " addition field ", " calculated field ", " face turnstile lattice ", " weighted sum " tool, and specific steps can join
It is carried out according to above method, obtains the evaluation of estimate of d1, d2 and the evaluation result of level-one evaluation index cultural resource d, be basically completed
The building of cultural resource evaluation model.
(6) Industrial Function evaluation model is constructed
The construction method of Industrial Function evaluation model is slightly different with the construction method of model above, uses regional conditions
Method is applied in combination in evaluation model and self-condition evaluation model construction method, and the scoring item main contents of Industrial Function are existing
There are the superior degree of industry and industry development potentiality, the existing superior degree data type of industry is attribute data, comes from status industry feelings
The fishing expedition data of condition.The specific evaluation criterion of industry development potentiality be woods disk apart from important Industrial Function development zone away from
From according to the corresponding assignment evaluation of the distance of distance progress.
Further, " addition field ", " calculated field " tool are used referring to above method, it is superior to existing industry spend into
Row assignment calculates, and obtains the evaluation of estimate of Industry Foundation e1.
Further, " polycyclic buffering " tool is used, buffer finish blasting is carried out to main Industrial Function development zone, is used
" addition field ", " calculated field " tool carry out corresponding assignment calculating according to buffering result, are developed the evaluation of condition e2
Value.
Further, " face turnstile lattice ", " weighted sum " tool are used, e1, e2 are switched into raster data, and according to corresponding
Two-level appraisement index weights be weighted, obtain the evaluation result of Industrial Function e, be basically completed Industrial Function evaluation mould
The building of type.
(7) overall assessment model is constructed
On the basis of above every evaluation model building, use " weighted sum " tool, to level-one evaluation index a, b,
C, d, e are weighted according to the weight of level-one evaluation index, obtain river XiLin disk overall assessment result.So far, substantially complete
At the building of 5 itemize evaluation model and 1 overall assessment model.
(8) model measurement and parameter setting
Further, established river XiLin disk evaluation model needs to carry out test repeatedly and modifies adjustment to guarantee mould
Type does not malfunction, it is easier to use.Established river XiLin disk evaluation model is stored in the same tool box in ArcGIS platform
In, to share and to reuse.
Further, in order to facilitate the shared and popularization and use of river XiLin disk evaluation model, workflow is reduced, to foundation
Good river XiLin disk evaluation model carries out debugging and the setting of parameter, is made river XiLin disk evaluation model by the setting of parameter
It is substantially reduced with threshold, realizes the application of " foolproof ", do not understand that the personnel of development model can also quickly finish evaluation work
Make.The setting of parameter includes input element, outgoing route and title, the modification of necessary variable etc..
Further, descriptive language is provided to the input of each parameter of setting, in order to which user quickly understands
The purpose of input, output and variable adjustment.
So far, the building of river XiLin disk evaluation model has been fully completed.Entire workflow is recorded among the model,
Form a new modeling tool.When using model, as existing tool, it is only necessary to simple double click operation, according to
Prompt inputs corresponding data and parameter, clicks the appraisal that confirming button can be automatically performed river XiLin disk.
(9) Visualization of evaluation result
After the completion of the operation of river XiLin disk evaluation model, subitem evaluation result and overall assessment result are obtained, comprising: position item
Part evaluation, self-condition evaluation, auxiliary facility evaluation, cultural resource evaluation, Industrial Function evaluation and overall assessment figure.?
A variety of Visualizations of result data may be implemented in ArcGIS platform, the one of which of visualization example expression is such as Fig. 4 institute
Show.
River XiLin disk evaluation model based on ArcGIS platform construction through the invention pushes river XiLin disk using new technology
Quantization, standardization, procedure, the automation of appraisal, reduce new technology uses threshold, increases substantially working efficiency,
Science, the reasonability of lifting scheme.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of river XiLin disk evaluation model construction method based on ArcGIS platform, which comprises the following steps:
(1) assessment indicator system of river XiLin disk is formulated；River XiLin disk assessment indicator system includes level-one evaluation index, two
Grade evaluation index and metrics evaluation item, and weight assignment is carried out for a two-level appraisement index；Wherein it is determined that the evaluation index body
The evaluation method of index at different levels in system are as follows: metrics evaluation item is evaluated to obtain the evaluation of estimate of two-level appraisement index；By second level
The evaluation of estimate of evaluation index is weighted to obtain the evaluation of estimate of level-one evaluation index by its corresponding weight；Level-one is evaluated
The evaluation of estimate of index is weighted to obtain overall assessment result by its corresponding weight；
(2) in ArcGIS model constructor, according to two-level appraisement index, subitem evaluation model is established using related tool；
(3) on the basis of itemizing evaluation model building, according to level-one evaluation index, overall assessment mould is established using related tool
Type.
2. disk evaluation model construction method in river XiLin as described in claim 1, which is characterized in that in step (1): for a second level
The method that evaluation index carries out weight assignment is expert graded, couples one of enabling legislation and Evaluation formula or a variety of groups
It closes.
3. disk evaluation model construction method in river XiLin as described in claim 1, which is characterized in that
The level-one evaluation index includes: regional conditions a, self-condition b, auxiliary facility c, cultural resource d and Industrial Function e；
The weight assignment of level-one evaluation index is respectively as follows: regional conditions weight Wa, self-condition weight Wb, auxiliary facility weight Wc, text
Change resource weight Wd and Industrial Function weight We；
The two-level appraisement index includes: geological location a1, Traffic area location a2 and Lv Dao position a3；Water body resource b1, forest money
Source b2, farmland resource b3, Courtyard Space b4, environmental sanitation b5 and path resource b6；Infrastructure c1, public affairs take facility c2；Substance
Cultural d1 and nonmaterial culture d2；Industry Foundation e1 and development condition e2；The weight assignment of two-level appraisement index is respectively as follows: geography
Position weight Wa1, Traffic area location weight Wa2 and Lv Dao position weight Wa3；Water body resource weight Wb1, forest tree resource weight Wb2,
Farmland resource weight Wb3, Courtyard Space weight Wb4, environmental sanitation weight Wb5 and path resource weight Wb6；Infrastructure weight
Wc1, public affairs take facility weight Wc2；Material and culture weight Wd1 and nonmaterial culture weight Wd2；Industry Foundation weight We1 and development
Condition weight We2；
The metrics evaluation item include: away from urban district distance, away from scenic spot distance, away from township distance；Away from expressway entrance distance, away from
Main roads distance；Away from the green track pitch in region from；Living space, Water quality；Percentage of forest cover, forest coordination of landscape degree, forest
Value；Farmland Landscape grace degree；Space skin texture harmony, architectural scene characteristic；Environmental sanitation tidiness；Outgoing road is convenient
Property, internal passageway systematicness；The comprehensive property of infrastructure such as water, electricity and gas news；The public affairs such as quotient, doctor, text, body take very well equipped；It saves
Grade, city-level, historical relic at county level or ruins richness；Provincial, city-level, cultural heritage richness at county level；The existing superior degree of industry；Industry
Development potentiality.
4. disk evaluation model construction method in river XiLin as claimed in claim 3, which is characterized in that by commenting for two-level appraisement index
Value is weighted to obtain the calculation formula of the evaluation of estimate of level-one evaluation index by its corresponding weight are as follows:
A=a1*Wa1+a2*Wa2+a3*Wa3；
B=b1*Wb1+b2*Wb2+b3*Wb3+b4*Wb4+b5*Wb5+b6*Wb6；
C=c1*Wc1+c2*Wc2；
D=d1*Wd1+d2*Wd2；
E=e1*We1+e2*We2；
The calculating for being weighted to obtain overall assessment result by its corresponding weight for the evaluation of estimate of level-one evaluation index is public
Formula are as follows: Z=a*Wa+b*Wb+c*Wc+d*Wd+e*We.
5. disk evaluation model construction method in river XiLin as claimed in claim 3, which is characterized in that step (2) is in ArcGIS mould
In type composer, according to two-level appraisement index, include: using the subitem evaluation model that related tool is established
The evaluation of the area position model established based on two-level appraisement index a1, a2, a3；
The self-condition evaluation model established based on two-level appraisement index b1, b2, b3, b4, b5, b6；
The auxiliary facility evaluation model established based on two-level appraisement index c1, c2；
The cultural resource evaluation model established based on two-level appraisement index d1, d2；
The Industrial Function evaluation model established based on two-level appraisement index e1, e2.
6. disk evaluation model construction method in river XiLin as claimed in claim 3, which is characterized in that step (3) is evaluated in subitem
It the use of the overall assessment model that related tool is established include: based on level-one according to level-one evaluation index on the basis of model construction
The overall assessment model that evaluation index a, b, c, d, e are established.
7. disk evaluation model construction method in river XiLin as claimed in claim 6, which is characterized in that step (3) is evaluated in subitem
On the basis of model construction, according to level-one evaluation index, the method for establishing overall assessment model using related tool are as follows: itemizing
On the basis of evaluation model building, " weighted sum " tool is used, level-one evaluation index a, b, c, d, e is referred to according to level-one evaluation
Target weight is weighted, and obtains the overall assessment of river XiLin disk as a result, completing the building of overall assessment model.
8. disk evaluation model construction method in river XiLin as described in claim 1, which is characterized in that described river XiLin disk evaluates mould
The data mode of the input data of type needs to be determined according to the metrics evaluation item；The form of the input data includes table category
Property data and space vector data, are mounted form attributes data with space vector data using ArcGIS platform, as
The basic input data of corresponding model；The data format of the basis input data is .shape.
9. disk evaluation model construction method in river XiLin as claimed in claim 8, which is characterized in that when true according to metrics evaluation item
When the data mode of fixed input data is space vector data, " polycyclic buffering ", " joint ", " addition field " and " meter are used
Calculate field " tool, it is evaluated to obtain the evaluation of estimate of two-level appraisement index to space vector data, uses " face turnstile lattice " tool
Two-level appraisement index is converted into raster data；
When the data mode of the input data determined according to metrics evaluation item is form attributes data, use " addition field " and
" calculated field " tool, calculates the evaluation of estimate of the two-level appraisement index of form attributes data, uses " face turnstile lattice " tool will
Two-level appraisement index is converted to raster data；
" weighted sum " tool of use is weighted the two-level appraisement index for being converted to raster data to obtain level-one evaluation
The evaluation of estimate of index, the corresponding building for completing subitem evaluation model.
10. disk evaluation model construction method in river XiLin as described in claim 1, which is characterized in that established river XiLin
Disk evaluation model should carry out debugging and the setting of parameter, and provide descriptive language to the input of each parameter of setting；It is described
The setting of parameter includes input element, outgoing route and title and the modification of necessary variable.
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