CN109146995A - A kind of typhoon distribution drawing drawing method and system - Google Patents
A kind of typhoon distribution drawing drawing method and system Download PDFInfo
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- CN109146995A CN109146995A CN201810913403.3A CN201810913403A CN109146995A CN 109146995 A CN109146995 A CN 109146995A CN 201810913403 A CN201810913403 A CN 201810913403A CN 109146995 A CN109146995 A CN 109146995A
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/20—Drawing from basic elements, e.g. lines or circles
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Abstract
The present invention relates to deep-sea mining operating environment analysis field, a kind of typhoon distribution drawing drawing method and system are disclosed, to realize that the typhoon distribution map to specific region in sea area is drawn, simple to operation, implementation cost is low；Method S1 of the invention: selecting typhoon region to be analyzed, obtains the geographical location information in typhoon region to be analyzed, and is converted into region picture；Region picture is subjected to grid dividing, then all grids are screened, all grids comprising typhoon region is obtained, analyzes the geographical location information of all grids；History typhoon track message file is read, and historical path message file is parsed, obtains history typhoon track geographical location information；History typhoon track geographical location information is matched with the geographical location information of grid, and the typhoon quantity in each grid is calculated according to matching result, is then drawn according to how many pairs of grids of typhoon quantity.
Description
Technical field
The present invention relates to deep-sea mining operating environment analysis fields more particularly to a kind of typhoon to be distributed drawing drawing method and be
System.
Background technique
Ocean engineering belongs to the field of high investment, high risk, and in numerous hazard factors, ocean extreme weather is to influence most
It is serious one, especially for the ocean project for relying on ocean platform and operation ship.Including South China Sea, sea of Japan etc. is more
The northwest Pacific in a sea area is typhoon district occurred frequently, in history because the perils of the sea of the extreme weathers such as typhoon generation and accident disregard it
Number.Current each institute, enterprise can refer to the typhoon historical statistical data in sea area before implementing ocean engineering, avoid typhoon
High-incidence season, if the typhoon at the South Sea high-incidence season is November in June-.But disclosed Typhoon Activity rule is usually to carry out to entire sea area
Statistics, accurate reference can not be provided for the ocean engineering project of sea area specific region, it is even more impossible to provide the platform in entire sea area
Wind is distributed details, this is a pole to needing to carry out sea trial but the powerless mechanism for buying accurate Typhoon Information and company
It is big to hinder.
Summary of the invention
It is an object of that present invention to provide a kind of typhoon distribution drawing drawing method and systems, to realize to specific region in sea area
Typhoon distribution map draw, simple to operation, implementation cost is low.
To achieve the above object, the present invention provides a kind of typhoons to be distributed drawing drawing method, comprising the following steps:
S1: selecting typhoon region to be analyzed, obtains the geographical location information in the typhoon region to be analyzed, and is converted into area
Domain picture；
S2: the region picture is subjected to grid dividing, then all grids are screened, is obtained comprising typhoon region
All grids, analyze the geographical location information of all grids；
S3: history typhoon track message file is read, and the historical path message file is parsed, obtains history
Typhoon track geographical location information；
S4: the history typhoon track geographical location information is matched with the geographical location information of the grid, and
The typhoon quantity in each grid is calculated according to matching result, is then drawn according to how many pairs of grids of typhoon quantity.
Preferably, in the S2, described pair of all grids are screened specifically: will not include the grid view in typhoon region
For extra grid, all extra grids are removed.
Preferably, in the S2, after all grids obtained comprising typhoon region, it is each for further comprising the steps of:
A grid distributes a unique corresponding mark.
Preferably, the S4 specifically includes the following steps:
S41: obtain that the history typhoon starts the information in year, typhoon terminates the information in year and opens in the typhoon
Begin year and the typhoon terminate year between typhoon geographical location information, obtain typhoon geographical location information collection；
S42: being initialized as zero for the typhoon quantity in each grid, the typhoon geographical location information is concentrated each
A typhoon geographical location information is successively matched with the geographical location information of grid according to chronological order, if being consistent,
Think that the typhoon number occurred in the grid adds one, until each of described typhoon geographical location information collection typhoon geographical location
Information matches finish；
S43: traversing the typhoon quantity in each grid, characterizes quantity with gray value size, draws region to be analyzed
Typhoon be distributed grayscale image.
Preferably, in the S1, typhoon region to be analyzed is selected using google earth tool.
As a general technical idea, the present invention also provides a kind of typhoon distribution map drawing systems, comprising:
First unit: for obtaining the geographical location information in typhoon region to be analyzed, and it is converted into region picture；
Second unit: for the region picture to be carried out grid dividing, then all grids is screened, are wrapped
All grids in the region containing typhoon, analyze the geographical location information of all grids；
Third unit: it is solved for reading history typhoon track message file, and to the historical path message file
Analysis, obtains history typhoon track geographical location information；
Unit the 4th: for by the geographical location information of the history typhoon track geographical location information and the grid into
Row matching, and calculates the typhoon quantity in each grid according to matching result, then according to how many pairs of grids of typhoon quantity into
Row is drawn.
Preferably, in the second unit, described pair of all grids are screened specifically: will not include typhoon region
Grid is considered as extra grid, removes all extra grids.
Preferably, it in the second unit, after all grids obtained comprising typhoon region, further comprises the steps of:
A unique corresponding mark is distributed for each grid.
Preferably, Unit the 4th includes the first module, the second module and third module, and first module is used for
Obtain that the history typhoon starts the information in year, typhoon terminates the information in year and starts year and described in the typhoon
Wind terminate year between typhoon geographical location information, obtain typhoon geographical location information collection；
Second module is used to the typhoon quantity in each grid being initialized as zero, and the typhoon geographical location is believed
Breath collection each of typhoon geographical location information according to chronological order successively with the geographical location information of grid carry out
Match, if being consistent, then it is assumed that the typhoon number occurred in the grid adds one, until each of described typhoon geographical location information collection
Typhoon geographical location information is all matched and is finished；
The third module is used to traverse the typhoon quantity in each grid, characterizes quantity with gray value size, draws
Make the typhoon distribution grayscale image in region to be analyzed.
Preferably, in the first unit, typhoon region to be analyzed is selected using google earth tool.
The invention has the following advantages:
The present invention provides a kind of typhoon distribution drawing drawing method and system, selectes typhoon region to be analyzed, obtain it is described to
The geographical location information in analyzed vortex region, and it is converted into region picture；The region picture is subjected to grid dividing, it is then right
All grids are screened, and are obtained all grids comprising typhoon region, are analyzed the geographical location information of all grids；It reads
History typhoon track message file, and the historical path message file is parsed, obtain history typhoon track geography position
Confidence breath；The history typhoon track geographical location information is matched with the geographical location information of the grid, and according to
Matching result calculates the typhoon quantity in each grid, is then drawn according to how many pairs of grids of typhoon quantity；It is able to achieve
The typhoon distribution map of specific region in sea area is drawn, simple to operation, implementation cost is low, is further scientific research institutions and enterprise
Convenient and economic typhoon means of numerical analysis is provided.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the typhoon distribution drawing drawing method flow chart of the preferred embodiment of the present invention；
Fig. 2 is the administrative division map before the extra grid of removal of the preferred embodiment of the present invention；
Fig. 3 is the administrative division map after the extra grid of removal of the preferred embodiment of the present invention；
Fig. 4 is the method flow diagram for calculating typhoon quantity in grid of the preferred embodiment of the present invention；
Fig. 5 is the typhoon distribution map in region to be analyzed in the preferred embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be defined by the claims
Implement with the multitude of different ways of covering.
Embodiment 1
Referring to Fig. 1, the present embodiment provides a kind of typhoons to be distributed drawing drawing method, comprising the following steps:
S1: selecting typhoon region to be analyzed, obtains the geographical location information in typhoon region to be analyzed, and is converted into administrative division map
Piece；
S2: region picture is subjected to grid dividing, then all grids are screened, obtain the institute comprising typhoon region
There is grid, analyzes the geographical location information of all grids；
S3: history typhoon track message file is read, and historical path message file is parsed, obtains history typhoon
Path geographical location information；
S4: history typhoon track geographical location information is matched with the geographical location information of grid, and according to matching
As a result the typhoon quantity in each grid is calculated, is then drawn according to how many pairs of grids of typhoon quantity.
In above-mentioned steps, grid dividing is carried out by treating analyzed area, by the geographical location information of history typhoon track
It is matched with the geographical location information of grid, obtains the typhoon quantity of each grid, quantity is then characterized with gray value size
How much, the typhoon distribution grayscale image in region to be analyzed is drawn, is able to achieve and the typhoon distribution map of specific region in sea area is drawn, letter
Single easy to operate, implementation cost is low.
It should be noted that after the geographical location information for obtaining typhoon region to be analyzed, being stored in above-mentioned steps
For kml (Keyhole Markup Language, markup language) file, kml file is for describing and saving geography information
The coding criterion of (such as point, line, image, polygon and model)；And after analyzing the geographical location information of all grids, by it
Shapefile (ESRI Shapefile) file is saved as, shapefile file format is company of U.S. environment system research institute
(ESRI) the open format of a kind of spatial data developed.
Specifically, in practical applications, polygon tool is added by google earth first, selected manually to be analyzed
Typhoon region obtains the polygonal region to indicate typhoon region to be analyzed, and selected polygonal region is exported as kml text
Part, wherein the kml file includes the geographical location information for choosing typhoon region to be analyzed, zone boundary length and area surface
Product.
Then, kml file is converted into picture text using the system crossover tool in the arcmap component of arcgis software
Part carries out grid dividing to polygon typhoon region by the feature class tool in System data management device.That is, will be entirely wait divide
Analysis region division is multiple small net regions, to carry out more fine statistics and analysis to the Typhoon Information in region.It needs
It is noted that grid dividing is more, obtain that Typhoon Information is finer, and finally obtained typhoon distribution map is more accurate, but
It is excessive excessively to will lead to calculation amount for grid simultaneously, it is preferable that the embodiment of the present invention is in grid division, using latitude direction as grid
Length direction the size of each grid is set as 200*150km, but the present invention using longitudinal as the width direction of grid
It is not limited to that, in the case where being able to achieve identical function, moreover it is possible to phase be carried out to the division size of grid in a certain range
The adjustment answered.
Further, sliding-model control is carried out to the grid that division obtains using Arcgis tool, then will not will include platform
The grid in wind region is considered as extra grid, removes all extra grids, wherein administrative division map such as Fig. 2 institute before removing extra grid
Show, the administrative division map after removing extra grid is as shown in Figure 3.It then the use of the data-driven page is that unique correspond to is arranged in each grid
Label it is easy to use so that corresponding grid can be looked for by label during parsing to grid, mention
The speed of high analyte.The polygon typhoon region of discretization is saved as into the shp file that Python can be identified again.
Then, history typhoon track message file is read, and historical path message file is parsed, obtains history platform
Wind path diameter geographical location information；Above-mentioned shapefile file is read, parsing obtains the geographical location information of each grid.
In practical applications, referring to fig. 4, the present invention can also increase following steps and optimize:
S4: history typhoon track geographical location information is matched with the geographical location information of the grid, and according to
Matching result calculates the typhoon quantity in each grid, is then drawn according to how many pairs of grids of typhoon quantity.Specific packet
It includes:
S41: history typhoon starts the information in year, typhoon terminates the information in year and starts year and platform in typhoon for acquisition
Wind terminate year between typhoon geographical location information, obtain typhoon geographical location information collection.
Wherein, in the embodiment of the present invention choose typhoon start year be nineteen fifty, typhoon terminate year be 2017, obtain 1950
The geographical location information of all typhoons between year to 2017, obtains typhoon geographical location information collection.Wherein, typhoon is indicated with y
Year, ysIndicate that typhoon statistics starts year；yeIndicate that typhoon statistics terminates year, miIndicate typhoon quantity, L in i-th of gridyIt indicates
Typhoon year y typhoon quantity, j indicates j-th of typhoon in some typhoon year, and N indicates grid division quantity in survey region, and i is indicated
The label of grid in region.
S42: being initialized as zero for the typhoon quantity in each grid, by each of typhoon geographical location information collection platform
Wind geographical location information is successively matched with the geographical location information of grid according to chronological order, if being consistent, then it is assumed that
The typhoon number occurred in the grid adds one, that is, has mi=mi+1.Until each of typhoon geographical location information collection typhoon
Reason location information, which all matches, to be finished.
Specifically, each year between statistics typhoon year typhoon sum L is obtainedy, then occur according to typhoon in this year
Time sequencing successively matches the routing information of typhoon j each in this year with grid.In matching, firstly, by j-th
Typhoon grid corresponding with first label carries out the matching of position, if the two position is consistent, then it is assumed that occurs in the grid
Typhoon number adds one；If not being consistent, j-th of typhoon grid corresponding with next label is carried out to the matching of position, until
Complete the routing information matching of j-th of typhoon.Then, next typhoon of j-th of typhoon is chosen, that is, j=j+1, and press
It is matched according to above-mentioned matching process, until all typhoons in the typhoon year are all matched in corresponding grid.It chooses down again
All Typhoon Informations in one typhoon year are completed to match, have finally matched the institute in all typhoon years according to same principle
There is Typhoon Information, quantity occurs for the typhoon obtained in each grid.
S43: traversing the typhoon quantity in each grid, characterizes quantity with gray value size, draws region to be analyzed
Typhoon be distributed grayscale image.
It should be noted that the value interval range of gray value is 0-255, in practical operation, according to all grids
Gray value is carried out interval division, realizes the one-to-one correspondence of gray scale interval and typhoon quantity by the difference of typhoon quantity, with drafting to
The typhoon of analysis is distributed grayscale image, as shown in Figure 5.
Embodiment 2
With above method embodiment correspondingly, the present embodiment provides a kind of typhoon distribution map drawing systems, comprising:
First unit: for obtaining the geographical location information in typhoon region to be analyzed, and it is converted into region picture；
Second unit: for region picture to be carried out grid dividing, then all grids is screened, are obtained comprising platform
All grids in wind region, analyze the geographical location information of all grids；
Third unit: it parses, obtains for reading history typhoon track message file, and to historical path message file
To history typhoon track geographical location information；
Unit the 4th: for history typhoon track geographical location information to be matched with the geographical location information of grid,
And the typhoon quantity in each grid is calculated according to matching result, then drawn according to how many pairs of grids of typhoon quantity.
As the present embodiment preferred embodiment, in second unit, all grids are screened specifically: will not wrap
The grid for including typhoon region is considered as extra grid, removes all extra grids.
As the present embodiment preferred embodiment, in second unit, after obtaining all grids comprising typhoon region,
It further comprises the steps of: and distributes a unique corresponding mark for each grid.
As the present embodiment preferred embodiment, Unit the 4th includes the first module, the second module and third module,
For obtaining, history typhoon starts the information in year to first module, typhoon terminates the information in year and starts year and platform in typhoon
Wind terminate year between typhoon geographical location information, obtain typhoon geographical location information collection；
Second module is used to the typhoon quantity in each grid being initialized as zero, and typhoon geographical location information is concentrated
Each typhoon geographical location information is successively matched with the geographical location information of grid according to chronological order, if phase
Symbol, then it is assumed that the typhoon number occurred in the grid adds one, until each of typhoon geographical location information collection typhoon geography position
Information matches are set to finish；
Third module is used to traverse typhoon quantity in each grid, characterizes quantity with gray value size, draw to
The typhoon of analyzed area is distributed grayscale image.
As the present embodiment preferred embodiment, typhoon region to be analyzed is selected using google earth tool.
To be described in detail in the specific execution method and process self-love above method embodiment of above-mentioned each unit and module,
It does not repeat herein.
As described above, the present invention provides a kind of typhoon distribution drawing drawing method and system, typhoon region to be analyzed is selected, is obtained
The geographical location information in the typhoon region to be analyzed is taken, and is converted into region picture；The region picture is carried out grid to draw
Point, then all grids are screened, all grids comprising typhoon region is obtained, analyzes the geographical location of all grids
Information；History typhoon track message file is read, and the historical path message file is parsed, obtains history typhoon road
Diameter geographical location information；By the progress of the geographical location information of the history typhoon track geographical location information and the grid
Match, and the typhoon quantity in each grid is calculated according to matching result, is then drawn according to how many pairs of grids of typhoon quantity
System；It is able to achieve and the typhoon distribution map of specific region in sea area is drawn, simple to operation, implementation cost is low, is further scientific research
Institutes and enterprise provide convenient and economic typhoon means of numerical analysis.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of typhoon is distributed drawing drawing method, which comprises the following steps:
S1: selecting typhoon region to be analyzed, obtains the geographical location information in the typhoon region to be analyzed, and is converted into administrative division map
Piece；
S2: the region picture is subjected to grid dividing, then all grids are screened, obtain the institute comprising typhoon region
There is grid, analyzes the geographical location information of all grids；
S3: history typhoon track message file is read, and the historical path message file is parsed, obtains history typhoon
Path geographical location information；
S4: the history typhoon track geographical location information is matched with the geographical location information of the grid, and according to
Matching result calculates the typhoon quantity in each grid, is then drawn according to how many pairs of grids of typhoon quantity.
2. typhoon according to claim 1 is distributed drawing drawing method, which is characterized in that in the S2, described pair of all nets
Lattice are screened specifically: will not included that the grid in typhoon region is considered as extra grid, removed all extra grids.
3. typhoon according to claim 1 is distributed drawing drawing method, which is characterized in that described to be included in the S2
After all grids in typhoon region, further comprises the steps of: and distribute a unique corresponding mark for each grid.
4. typhoon according to claim 1 is distributed drawing drawing method, which is characterized in that the S4 specifically includes following step
It is rapid:
S41: obtain that the history typhoon starts the information in year, typhoon terminates the information in year and starts year in the typhoon
And the typhoon terminate year between typhoon geographical location information, obtain typhoon geographical location information collection；
S42: being initialized as zero for the typhoon quantity in each grid, by each of typhoon geographical location information collection platform
Wind geographical location information is successively matched with the geographical location information of grid according to chronological order, if being consistent, then it is assumed that
The typhoon number occurred in the grid adds one, until each of described typhoon geographical location information collection typhoon geographical location information
All matching finishes；
S43: traversing the typhoon quantity in each grid, characterizes quantity with gray value size, draws the platform in region to be analyzed
Wind is distributed grayscale image.
5. typhoon according to claim 1 is distributed drawing drawing method, which is characterized in that in the S1, using google
Earth tool selectes typhoon region to be analyzed.
6. a kind of typhoon distribution map drawing system characterized by comprising
First unit: for obtaining the geographical location information in typhoon region to be analyzed, and it is converted into region picture；
Second unit: for the region picture to be carried out grid dividing, then all grids is screened, are obtained comprising platform
All grids in wind region, analyze the geographical location information of all grids；
Third unit: it parses, obtains for reading history typhoon track message file, and to the historical path message file
To history typhoon track geographical location information；
A Unit the 4th: for carrying out the geographical location information of the history typhoon track geographical location information and the grid
Match, and the typhoon quantity in each grid is calculated according to matching result, is then drawn according to how many pairs of grids of typhoon quantity
System.
7. typhoon distribution map drawing system according to claim 6, which is characterized in that described right in the second unit
All grids are screened specifically: will not included that the grid in typhoon region is considered as extra grid, removed all extra grids.
8. typhoon distribution map drawing system according to claim 6, which is characterized in that in the second unit, described
To after all grids comprising typhoon region, further comprises the steps of: and distribute a unique corresponding mark for each grid.
9. typhoon distribution map drawing system according to claim 6, which is characterized in that Unit the 4th includes the first mould
Block, the second module and third module, for obtaining, the history typhoon starts the information in year to first module, typhoon terminates
Year information and in the typhoon start year and the typhoon terminate year between typhoon geographical location information, obtain
Typhoon geographical location information collection；
Second module is used to the typhoon quantity in each grid being initialized as zero, by the typhoon geographical location information collection
Each of typhoon geographical location information successively matched with the geographical location information of grid according to chronological order, if
It is consistent, then it is assumed that the typhoon number occurred in the grid adds one, until each of described typhoon geographical location information collection typhoon
Geographical location information is all matched and is finished；
The third module is used to traverse typhoon quantity in each grid, characterizes quantity with gray value size, draw to
The typhoon of analyzed area is distributed grayscale image.
10. typhoon distribution map drawing system according to claim 6, which is characterized in that in the first unit, use
Google earth tool selectes typhoon region to be analyzed.
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| CN111353217A (en) * | 2020-02-19 | 2020-06-30 | 中山大学 | Typhoon path prediction method, device, computer device and storage medium |
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