CN108510570A - Go out drawing method and device based on standard map service - Google Patents
Go out drawing method and device based on standard map service Download PDFInfo
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- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
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Abstract
The present invention provides drawing method and device is gone out based on standard map service, it is related to picture synthesis technical field, wherein being somebody's turn to do the drawing method that goes out based on standard map service includes：First, server obtains the current accuracy of GIS pictures, then, server obtains multiple and different figure layer precision according to the difference of the slicing mode of GIS pictures, secondly, server executes mixing operation to the corresponding GIS pictures of each figure layer precision one by one according to current accuracy, each mixing operation obtains an output picture, until all corresponding GIS pictures of figure layer precision all complete mixing operation, later, multiple output picture group synthetic standards are exported picture by server, and standard output picture is returned into browser, pass through the above-mentioned processing of server, people are eliminated the step of browser operates manually, enable people to conveniently get a figure based on standard map service.
Description
Technical field
The present invention relates to picture synthesis technical fields, more particularly to go out drawing method and device based on standard map service.
Background technology
Drawing system of GIS, that is, GIS-Geographic Information System (Geographic Information System, abbreviation GIS) is
It is a kind of based on primary spatial data and the integrated management of all kinds of professional spatial datas and application system, by Various types of data
Displaying, inquiry, statistics and analysis etc. are superimposed to realize the linkage displaying and management in space, attribute.GIS mono- opens drawing system and is based on gently
Magnitude browser browser access, but there are disadvantages in the management of space GIS data, for example, the GIS in input/output function
Data export, because directly operating the operating interactives such as GIS data, file and IO (Input/Output) in browser has limit
System.
But GIS mono- opens drawing system during client's direct use, if it is desired to for crucial map location data into
Row prints figure, for example, by a GIS picture 1:The land red-line of some plot range is superimposed upon digital line under 500 engineer's scales
It draws on figure, exports into normal pictures later and printed or reported.Currently, the conjunction of a complete standard output picture
Include mainly following several forms at method：
1. being zoomed in and out on a drawing system, later, sectional drawing tool is used on the picture that different scalings is formed
Picture is intercepted into, then a standard output picture is synthesized by tools such as PS.
2. by the profession GIS tools such as ArcGis, the corresponding map overlay rendering of GIS pictures is first fabricated to MXD formats
File the data of specified range are exported into figure later by exporting map sheet function, then pass through the upper legend of PS tools addition
Deng formation standard output picture.
3. cut the vector data of output area by cad file, manually the upper picture frame of addition, legend and title, then by CAD
Specified figure layer rank is zoomed to, later, standard output picture is exported by CAD.
As it can be seen that the building-up process of above-mentioned standard output picture is very cumbersome, user is needed to be manually operated in browser time-consuming
Arduously.
Invention content
In view of this, being designed to provide for the embodiment of the present invention goes out drawing method and dress based on standard map service
It sets, by the way that server etc. is arranged, improves the convenience of the synthesis of standard output picture.
In a first aspect, an embodiment of the present invention provides the drawing methods that goes out based on standard map service, including：
Server obtains the current accuracy of GIS pictures；
The server obtains multiple and different figure layer precision according to the difference of the slicing mode of the GIS pictures；
The server executes fusion to the corresponding GIS pictures of each figure layer precision one by one according to current accuracy
Operation, each mixing operation obtains an output picture, until all corresponding GIS pictures of the figure layer precision are all complete
At mixing operation；
Multiple output picture group synthetic standards are exported picture by the server, and the standard output picture is returned
Back to browser.
With reference to first aspect, an embodiment of the present invention provides the first possible embodiments of first aspect, wherein institute
Stating server, the GIS pictures corresponding to each figure layer precision execute mixing operation one by one according to current accuracy, every time
Mixing operation obtains an output picture, until all corresponding GIS pictures of the figure layer precision all complete fusion behaviour
Make, including：
The step of mixing operation, is as follows：
The server calculates the difference of the current accuracy and the figure layer precision；
The server judges the figure layer rank of the corresponding GIS pictures of the figure layer precision according to the difference；
The server obtains the corresponding line-column matrix of the figure layer rank, and, with the line-column matrix by the figure layer
The corresponding GIS pictures of rank are divided into multiple free hand drawings；
The multiple free hand drawing is fused into the output picture by the server.
With reference to first aspect, an embodiment of the present invention provides second of possible embodiments of first aspect, wherein institute
The current accuracy that server obtains GIS pictures is stated, including：
The server receives the coordinate value and pixel value that browser is sent, wherein the coordinate value and the pixel value
It is that the browser is calculated when receiving external output triggering according to the current GIS pictures；
The server calculates the ratio of the coordinate value and the pixel value, and, the ratio is denoted as described current
Precision.
The possible embodiment of with reference to first aspect the first, an embodiment of the present invention provides the third of first aspect
Possible embodiment, wherein the server judges the corresponding GIS pictures of the figure layer precision according to the difference
Figure layer rank, including：
The server extracts the maximum value of the corresponding figure layer precision of the GIS pictures under all slicing modes, and,
Multiple threshold intervals are divided between 0 and the maximum value；
The server is that a figure layer rank is arranged in each threshold interval；
The corresponding threshold interval of difference described in the whois lookup, and, judge the corresponding institute of the threshold interval
It is the corresponding figure layer rank of the GIS pictures to state figure layer rank.
The possible embodiment of with reference to first aspect the first, an embodiment of the present invention provides the 4th kind of first aspect
Possible embodiment, wherein the server obtains the corresponding line-column matrix of the figure layer rank, and, with the ranks square
The corresponding GIS pictures of the figure layer rank are divided into multiple free hand drawings by battle array, including：
The server obtains the origin X-coordinate X of the corresponding GIS pictures of the figure layer rank1, origin Y coordinate Y1、
Lower left corner X-coordinate X2, lower left corner Y coordinate Y2, upper right corner X-coordinate X3, upper right corner Y coordinate Y3, picture pixels Z；
The server calculates the line number L in the lower left corner1=floor ((Y2-Y1)/(Z*S)), wherein S indicates the figure layer
The corresponding figure layer precision of rank；
The server calculates the row number L in the lower left corner2=floor ((X2-X1)/(Z*S)), wherein S indicates the figure layer
The corresponding figure layer precision of rank；
The server calculates the line number L in the upper right corner3=floor ((Y3-Y1)/(Z*S)), wherein S indicates the figure layer
The corresponding figure layer precision of rank；
The server calculates the row number L in the upper right corner4=floor ((X3-X1)/(Z*S)), wherein S indicates the figure layer
The corresponding figure layer precision of rank；
The server obtains the line-column matrix L=(L3-L1, L4-L2)；
The GIS pictures are divided into (L by the server according to the line-column matrix L3-L1)*(L4-L2) a free hand drawing.
The possible embodiment of with reference to first aspect the first, an embodiment of the present invention provides the 5th kind of first aspect
Possible embodiment, wherein the multiple free hand drawing is fused into the output picture by the server, including：
The server extracts the coordinate in the line-column matrix；
The server merges the multiple free hand drawing in same coordinate, obtains the output picture.
Second of possible embodiment with reference to first aspect, an embodiment of the present invention provides the 6th kind of first aspect
Possible embodiment, wherein multiple output picture group synthetic standards are exported pictures by the server, and by the mark
Quasi- output picture returns to browser, including：
The server is that the output picture is superimposed legend according to standard map service；
The server is the output picture addition picture frame after being superimposed legend, obtains the standard output picture；
The standard output picture is returned to the browser by the server.
Second aspect, an embodiment of the present invention provides the map devices that goes out based on standard map service, including：
Current accuracy acquisition module obtains the current accuracy of GIS pictures for server；
Figure layer precision acquisition module is more according to the different acquisitions of the slicing mode of the GIS pictures for the server
A different figure layer precision；
Mixing operation module, for the server according to current accuracy one by one to the corresponding institute of each figure layer precision
It states GIS pictures and executes mixing operation, each mixing operation obtains an output picture, until all figure layer precision correspond to
The GIS pictures all complete mixing operation；
Multiple output picture group synthetic standards are exported picture by picture synthesis module for the server, and will
The standard output picture returns to browser.
The third aspect, the embodiment of the present invention also provide a kind of terminal, including memory and processor, and memory is for depositing
Storage supports processor to execute the program for going out drawing method based on standard map service that above-mentioned aspect provides, and processor is configured as
For executing the program stored in memory.
Fourth aspect, the embodiment of the present invention also provide a kind of computer readable storage medium, computer readable storage medium
On be stored with computer program, when computer program is run by processor execute any of the above-described method the step of.
It is provided in an embodiment of the present invention that drawing method and device are gone out based on standard map service, wherein study plot should be based on
Figure service the drawing method that goes out include：First, server obtains the current accuracy of GIS pictures, i.e., the GIS figures under current slice mode
The current accuracy of piece, then, server obtain multiple and different figure layer precision according to the difference of the slicing mode of GIS pictures,
Secondary, server executes mixing operation, each mixing operation to the corresponding GIS pictures of each figure layer precision one by one according to current accuracy
An output picture is obtained, multiple output pictures can be obtained after traversing aforesaid operations, in this way, until all figure layer precision pair
The GIS pictures answered all complete mixing operation, and later, multiple output picture group synthetic standards are exported picture by server, and will mark
Quasi- output picture returns to browser, can be by GIS pictures according to different figures by the automatic implementation procedure of above-mentioned server
Layer precision carries out mixing operation one by one, and then is combined into standard output picture, and standard output picture is returned to browser and is looked into
It sees, compared with prior art, drawing method should be gone out without people in a browser manually to GIS pictures based on standard map service
It is handled, it is convenient and efficient.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The purpose of the present invention and other advantages are in specification, claims
And specifically noted structure is realized and is obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 shows the flow chart for going out drawing method based on standard map service that the embodiment of the present invention is provided；
Fig. 2 shows the sons for going out step S101 in drawing method based on standard map service that the embodiment of the present invention is provided
Flow chart；
Fig. 3 shows the son for going out step S103 in drawing method based on standard map service that the embodiment of the present invention is provided
Flow chart；
Fig. 4 shows the son for going out step S104 in drawing method based on standard map service that the embodiment of the present invention is provided
Flow chart；
Fig. 5 shows the structure connection figure for going out map device based on standard map service that the embodiment of the present invention is provided.
Icon：1- current accuracy acquisition modules；2- figure layer precision acquisition modules；3- mixing operation modules；4- pictures synthesize
Module.
Specific implementation mode
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
The every other embodiment obtained under the premise of going out creative work, shall fall within the protection scope of the present invention.
It is the system for having input/output function that GIS mono-, which opens drawing system, and during current use, people want to utilize
Above-mentioned GIS mono- opens drawing system, needs to be operated manually in browser end.Existing operating method includes mainly following several shapes
Formula：1. zoomed in and out on a drawing system, later, on the picture that different scalings is formed with the interception of sectional drawing tool at
Picture, then synthesize a standard output picture by tools such as PS.2., first will be corresponding by the profession GIS tools such as ArcGis
Map overlay rendering be fabricated to MXD files, later by export map sheet function, the data of specified range are exported into figure, then
Upper legend etc. is added by PS tools, forms standard output picture.3. the vector data of output area is cut by cad file,
The upper picture frame of addition, legend and title manually, then CAD is zoomed into specified figure layer rank, later, standard output is exported by CAD
Picture.As it can be seen that the building-up process at present about standard output picture is very cumbersome.
Based on this, an embodiment of the present invention provides drawing method and device is gone out based on standard map service, below by reality
Example is applied to be described.
Embodiment 1
Referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the drawing method that goes out based on standard map service that the present embodiment proposes specifically includes
Following steps：
Step S101：Server obtains the current accuracy of GIS pictures.
First, it introduces lower GIS mono- and opens the GIS pictures externally shown in drawing system, in general, the GIS in GIS mono- opens drawing system
Picture is three-dimensional, can be by rotating above-mentioned GIS pictures, to be obtained from when people want to check the GIS pictures of different angle
The GIS pictures at the visual angle that oneself wants.Also, GIS pictures can also be according to the figure layer, rank, accuracy relation that section protocol defines
The GIS pictures of different stage (i.e. different zoom ratio) are obtained, for example, 1:200 certain county's map and 1:500 certain county
Figure.
Above-mentioned steps S101 is described in detail below：
Step S1011：Server receives the coordinate value and pixel value that browser is sent, wherein coordinate value and pixel value are equal
It is that browser is calculated when receiving external output triggering according to current GIS pictures.
When people want to obtain the current accuracy of GIS pictures shown in current browser, sent before this to browser
Outside output triggering calculates the coordinate of current GIS pictures in this way, being browser later after receiving external output triggering
Value and pixel value, and the coordinate value being calculated and pixel value are sent to server.
Step S1012：The ratio of server coordinates computed value and pixel value, and, ratio is denoted as current accuracy.
Since the size of coordinate value indicates that the range that a GIS picture is included, the size of pixel value indicate a GIS
The readability of picture, therefore, in order to effectively weigh the attribute of a GIS picture, server receive above-mentioned coordinate value and
The ratio of coordinates computed value and pixel value after pixel value, and using the above-mentioned ratio being calculated as current accuracy.
Step S102：Server obtains multiple and different figure layer precision according to the difference of the slicing mode of GIS pictures.
Server obtains different figure layer rank and precision according to the section protocol of GIS pictures, can determine in section protocol
One slice figure layer of justice, is divided into how many a ranks (engineer's scale), each rank can define precision or resolution ratio, can also define and cut
The information such as piece origin and slice range.General GIS mono-, which opens drawing system base map section protocol, can define 18 ranks, and rank is got over
Large scale is smaller.
In the processing procedure of GIS pictures, it will usually carry out slicing treatment to GIS pictures, i.e., selected different slice is former
After point, the slice parameters such as resolution ratio and initial slice range, different GIS pictures are obtained.Correspondingly, opening drawing system in GIS mono-
In, the GIS pictures after having carried out different slicing treatments are previously stored in server.In the present embodiment, in order to accurately obtain
To the figure layer precision of GIS pictures, need to search the different figure layers essences of the corresponding GIS pictures of different slicing modes in the server
Degree, comprehensively and effectively to obtain the All Layers precision of GIS pictures.
Step S103：Server executes fusion behaviour to the corresponding GIS pictures of each figure layer precision one by one according to current accuracy
Make, each mixing operation obtains an output picture, until all corresponding GIS pictures of figure layer precision all complete fusion behaviour
Make.
As can be seen from the above description, the same point of a GIS picture can correspond to different figures under different figure layer precision
Piece content, in order to completely effectively consider each particular content of point on different dimensions in GIS pictures.Server is one by one
Mixing operation is executed to the corresponding GIS pictures of each figure layer precision, each mixing operation obtains an output picture, until all
The corresponding GIS pictures of figure layer precision all complete mixing operation until.
The step of above-mentioned mixing operation, is described in detail below below：
Step S1031：Server calculates the difference of current accuracy and figure layer precision.
As can be seen from the above description, the figure layer precision of GIS pictures has multiple.In the present embodiment, using current accuracy as base
Standard is compared with each figure layer precision one by one that is, on the basis of the current accuracy of the GIS pictures under current slice mode, with
This considers each figure layer precise manner of GIS pictures.
When it is implemented, for the GIS pictures of each figure layer precision, server calculates the difference of current accuracy and figure layer precision
Value.The difference between each figure layer precision i.e. by the size (relative value) of above-mentioned difference to characterize GIS pictures.
Step S1032：Server judges the figure layer rank of the corresponding GIS pictures of figure layer precision according to difference.Specific implementation
When include：
(1) server extracts the maximum value of the corresponding figure layer precision of all GIS pictures, when it is implemented, server before this
The corresponding figure layer precision of all GIS pictures is obtained, for example, the figure layer precision got is respectively a, b, c ... t, wherein t is
Maximum value, then, server therefrom extracts maximum values of the t as the corresponding figure layer precision of all GIS pictures.Also, 0 with most
Multiple threshold intervals are divided between big value t, the specific number of the threshold interval after division can carry out flexibly according to usage scenario
Setting.
(2) server is that a figure layer rank is arranged in each threshold interval, since threshold interval is a continuous range
Value, in order to quantify to each threshold interval, server is that a figure layer rank is arranged in each threshold interval, using as rear
The reference that continuous figure layer precision compares.
(3) the corresponding threshold interval of whois lookup difference, and, the figure layer grade of the corresponding GIS pictures of judgement figure layer precision
It Wei not the corresponding figure layer rank of threshold interval.In this way, after server has calculated multiple differences, pass through the corresponding threshold value of difference
Section determines figure layer rank, multiple continuous threshold interval discretizations to obtain.
Step S1033：Server obtains the corresponding line-column matrix of figure layer rank, and, with line-column matrix by figure layer rank pair
The GIS pictures answered are divided into multiple free hand drawings.In order to which the corresponding GIS pictures of different figure layer ranks are processed into multiple free hand drawings, in this reality
It applies in example, a line-column matrix is corresponded to each figure layer rank to realize, in order to effectively represent the corresponding ranks square of GIS pictures
The size of battle array, when specific implementation include：
(1) server obtains the origin X-coordinate X of the corresponding GIS pictures of figure layer rank1, origin Y coordinate Y1, lower left corner X sit
Mark X2, lower left corner Y coordinate Y2, upper right corner X-coordinate X3, upper right corner Y coordinate Y3, picture pixels Z.
(2) server calculates the line number L in the lower left corner1=floor ((Y2-Y1)/(Z*S)), wherein S indicates figure layer rank pair
The figure layer precision answered.Wherein, the basic function of floor functions is realized as follows：
(3) server calculates the row number L in the lower left corner2=floor ((X2-X1)/(Z*S)), wherein S indicates figure layer rank pair
The figure layer precision answered.
The minimum value of line-column matrix is characterized by the calculating of the line number and row number in the above-mentioned lower left corner.
(4) server calculates the line number L in the upper right corner3=floor ((Y3-Y1)/(Z*S)), wherein S indicates figure layer rank pair
The figure layer precision answered.
(5) server calculates the row number L in the upper right corner4=floor ((X3-X1)/(Z*S)), wherein S indicates figure layer rank pair
The figure layer precision answered.
The maximum value of line-column matrix is characterized by the calculating of the line number and row number in the above-mentioned upper right corner.
(6) server obtains line-column matrix L=(L3-L1, L4-L2)。
(7) GIS pictures are divided into (L by server according to line-column matrix L3-L1)*(L4-L2) a free hand drawing.
The size of entire line-column matrix is characterized by the calculating of above-mentioned maximum value and minimum difference.And by obtaining
The corresponding GIS pictures of each figure layer rank are divided into multiple free hand drawings by each coordinate points of line-column matrix.
Step S1034：Multiple free hand drawings are fused into output picture by server.Include when specific implementation：
(1) coordinate in server extraction line-column matrix, that is, after getting above-mentioned line-column matrix, server is in above-mentioned ranks
Coordinate is extracted in matrix.
(2) after getting above-mentioned coordinate, server merges multiple free hand drawings in same coordinate, i.e., will each scheme
Multiple free hand drawings in the corresponding same coordinate of layer precision are overlapped, and obtain output picture, in this way, output picture is in each slice
There is the output picture of at least one fusion to correspond under mode, to ensure the spatial integrity of output picture.
Step S104：Multiple output picture group synthetic standards are exported picture by server, and standard output picture is returned
To browser.Aforesaid operations are illustrated below：
Step S1041：Server is that output picture is superimposed legend according to standard map service, needs exist for illustrating
It is that the new edition standard map that standard map service, which is country's mapping geography information office's geography information, researches and develops with map department tissue is online
Service system defines multiple standards, including legend in the online service system.Map is looked into for the ease of people
It sees, server is that output picture is superimposed legend according to standard map service, and the specific placement location of legend and size etc. can bases
Usage scenario etc. is flexibly set.
Step S1042：In order to further ensure the integrality of picture, server is the output picture addition after being superimposed legend
Picture frame obtains standard output picture, needs exist for illustrating, and above-mentioned picture frame can be pre-stored mark in server
Quasi- picture frame, either, the individual character picture frame etc. that people are voluntarily drawn by browser.
Step S1043：Standard output picture is returned to browser by server, i.e., after above-mentioned processing procedure, takes
Business device end has obtained standard output picture by automatic running, and standard output picture is sent to browser, so that people look into
It sees.
In conclusion the drawing method that goes out provided in this embodiment based on standard map service includes：First, server obtains
The current accuracy of GIS pictures, i.e. figure layer precision under the current slicing mode of GIS pictures, then, server is according to GIS pictures
The difference of slicing mode obtain multiple and different figure layer precision, secondly, server is according to current accuracy one by one to each figure layer
The corresponding GIS pictures of precision execute mixing operation, and each mixing operation obtains an output picture, until all figure layer precision
Until corresponding GIS pictures all complete mixing operation, later, multiple output picture group synthetic standards are exported picture by server,
As output picture addition upper legend, picture frame etc., and standard output picture is returned into browser, by above-mentioned processing, save
People oneself carry out the steps of picture scaling, cutting etc. in browser, so as to voluntarily handle server well standard
Output picture is transmitted directly to people and checks, convenient and efficient.
Embodiment 2
Referring to Fig. 5, present embodiments providing the map device that goes out based on standard map service includes：
Current accuracy acquisition module 1 obtains the current accuracy of GIS pictures for server.
Figure layer precision acquisition module 2 is obtained for server according to the difference of the slicing mode of GIS pictures multiple and different
Figure layer precision.
Mixing operation module 3 one by one holds the corresponding GIS pictures of each figure layer precision according to current accuracy for server
Row mixing operation, each mixing operation obtains an output picture, until all corresponding GIS pictures of figure layer precision are all completed
Mixing operation.
Picture synthesis module 4, for server by multiple output picture group synthetic standards output picture, and by standard output
Picture returns to browser.
It is provided in an embodiment of the present invention that map device is gone out based on standard map service, with above-described embodiment offer based on mark
Quasi- Map Services go out drawing method technical characteristic having the same, so can also solve identical technical problem, reach identical
Technique effect.
The embodiment of the present invention additionally provides a kind of terminal, including memory and processor, and memory is supported for storing
Processor executes the program of above-described embodiment method, and processor is configurable for executing the program stored in memory.
The embodiment of the present invention also provides a kind of computer readable storage medium, and meter is stored on computer readable storage medium
Calculation machine program, when computer program is run by processor the step of the method for execution any of the above-described.
It should be noted that each embodiment in this specification is described in a progressive manner, each embodiment weight
Point explanation is all difference from other examples, and the same or similar parts between the embodiments can be referred to each other.
The technology effect for going out drawing method and device, realization principle and generation based on standard map service that the embodiment of the present invention is provided
Fruit is identical with preceding method embodiment, and to briefly describe, device embodiment part does not refer to place, can refer to preceding method implementation
Corresponding contents in example.
In several embodiments provided herein, it should be understood that disclosed device and method can also pass through
Other modes are realized.The apparatus embodiments described above are merely exemplary, for example, the flow chart in attached drawing and block diagram
Show the device of multiple embodiments according to the present invention, the architectural framework in the cards of method and computer program product,
Function and operation.In this regard, each box in flowchart or block diagram can represent the one of a module, section or code
Part, a part for the module, section or code, which includes that one or more is for implementing the specified logical function, to be held
Row instruction.It should also be noted that at some as in the realization method replaced, the function of being marked in box can also be to be different from
The sequence marked in attached drawing occurs.For example, two continuous boxes can essentially be basically executed in parallel, they are sometimes
It can execute in the opposite order, this is depended on the functions involved.It is also noted that every in block diagram and or flow chart
The combination of box in a box and block diagram and or flow chart can use function or the dedicated base of action as defined in executing
It realizes, or can be realized using a combination of dedicated hardware and computer instructions in the system of hardware.
In addition, each function module or unit in each embodiment of the present invention can integrate and to form an independence
Part, can also be modules individualism, can also two or more modules be integrated to form an independent portion
Point.
It, can be with if the function is realized and when sold or used as an independent product in the form of software function module
It is stored in a computer read/write memory medium.Based on this understanding, technical scheme of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be expressed in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic disc or CD.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence, can not be interpreted as indicating or implying relative importance.Moreover, term " packet
Include ", "comprising" or any other variant thereof is intended to cover non-exclusive inclusion so that including the mistake of a series of elements
Journey, method, article or equipment include not only those elements, but also include other elements that are not explicitly listed, either
Further include for elements inherent to such a process, method, article, or device.In the absence of more restrictions, by sentence
The element that "including a ..." limits, it is not excluded that also deposit in the process, method, article or apparatus that includes the element
In other identical element.
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, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.It should be noted that：Similar label and letter exist
Similar terms are indicated in following attached drawing, therefore, once being defined in a certain Xiang Yi attached drawing, are then not required in subsequent attached drawing
It is further defined and is explained.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. going out drawing method based on standard map service, which is characterized in that including：
Server obtains the current accuracy of GIS pictures；
The server obtains multiple and different figure layer precision according to the difference of the slicing mode of the GIS pictures；
The server executes fusion to the corresponding GIS pictures of each figure layer precision one by one according to the current accuracy
Operation, each mixing operation obtains an output picture, until all corresponding GIS pictures of the figure layer precision are all complete
At mixing operation；
Multiple output picture group synthetic standards are exported picture by the server, and the standard output picture is returned to
Browser.
2. according to claim 1 go out drawing method based on standard map service, which is characterized in that the server according to
The GIS pictures corresponding to each figure layer precision execute mixing operation to current accuracy one by one, and each mixing operation obtains
One output picture, until all corresponding GIS pictures of the figure layer precision all complete mixing operation, including：
The step of mixing operation, is as follows：
The server calculates the difference of the current accuracy and the figure layer precision；
The server judges the figure layer rank of the corresponding GIS pictures of the figure layer precision according to the difference；
The server obtains the corresponding line-column matrix of the figure layer rank, and, with the line-column matrix by the figure layer rank
The corresponding GIS pictures are divided into multiple free hand drawings；
The multiple free hand drawing is fused into the output picture by the server.
3. according to claim 1 go out drawing method based on standard map service, which is characterized in that the server obtains
The current accuracy of GIS pictures, including：
The server receives the coordinate value and pixel value that browser is sent, wherein the coordinate value and the pixel value are
The browser is when receiving external output triggering according to current GIS pictures calculating；
The server calculates the ratio of the coordinate value and the pixel value, and, the ratio is denoted as the current accuracy.
4. according to claim 2 go out drawing method based on standard map service, which is characterized in that the server according to
The difference judges the figure layer rank of the corresponding GIS pictures of the figure layer precision, including：
The server extracts the maximum value of the corresponding figure layer precision of the GIS pictures under all slicing modes, and, 0
Multiple threshold intervals are divided between the maximum value；
The server is that a figure layer rank is arranged in each threshold interval；
The corresponding threshold interval of difference described in the whois lookup, and, judge the corresponding figure of the threshold interval
Level Wei not the corresponding figure layer rank of the GIS pictures.
5. according to claim 2 go out drawing method based on standard map service, which is characterized in that the server obtains
The corresponding line-column matrix of the figure layer rank, and, with the line-column matrix by the corresponding GIS pictures point of the figure layer rank
At multiple free hand drawings, including：
The server obtains the origin X-coordinate X of the corresponding GIS pictures of the figure layer rank1, origin Y coordinate Y1, lower-left
Angle X-coordinate X2, lower left corner Y coordinate Y2, upper right corner X-coordinate X3, upper right corner Y coordinate Y3, picture pixels Z；
The server calculates the line number L in the lower left corner1=floor ((Y2-Y1)/(Z*S)), wherein S indicates the figure layer rank
Corresponding figure layer precision；
The server calculates the row number L in the lower left corner2=floor ((X2-X1)/(Z*S)), wherein S indicates the figure layer rank
Corresponding figure layer precision；
The server calculates the line number L in the upper right corner3=floor ((Y3-Y1)/(Z*S)), wherein S indicates the figure layer rank
Corresponding figure layer precision；
The server calculates the row number L in the upper right corner4=floor ((X3-X1)/(Z*S)), wherein S indicates the figure layer rank
Corresponding figure layer precision；
The server obtains the line-column matrix L=(L3-L1, L4-L2)；
The GIS pictures are divided into (L by the server according to the line-column matrix L3-L1)*(L4-L2) a free hand drawing.
6. according to claim 2 go out drawing method based on standard map service, which is characterized in that the server is by institute
It states multiple free hand drawings and is fused into the output picture, including：
The server extracts the coordinate in the line-column matrix；
The server merges the multiple free hand drawing in same coordinate, obtains the output picture.
7. according to claim 3 go out drawing method based on standard map service, which is characterized in that the server will be more
A output picture group synthetic standards export picture, and the standard output picture is returned to browser, including：
The server is that the output picture is superimposed legend according to standard map service；
The server is the output picture addition picture frame after being superimposed legend, obtains the standard output picture；
The standard output picture is returned to the browser by the server.
8. going out map device based on standard map service, which is characterized in that including：
Current accuracy acquisition module obtains the current accuracy of GIS pictures for server；
Figure layer precision acquisition module, it is multiple not according to the difference acquisition of the slicing mode of the GIS pictures for the server
Same figure layer precision；
Mixing operation module, it is corresponding to each figure layer precision described one by one according to current accuracy for the server
GIS pictures execute mixing operation, and each mixing operation obtains an output picture, until all figure layer precision are corresponding
The GIS pictures all complete mixing operation；
Multiple output picture group synthetic standards are exported picture by picture synthesis module for the server, and will be described
Standard output picture returns to browser.
9. a kind of terminal, which is characterized in that including memory and processor, the memory supports processor to hold for storing
The program of any one of row claim 1 to 7 the method, the processor are configurable for executing and be stored in the memory
Program.
10. a kind of computer readable storage medium, it is stored with computer program on computer readable storage medium, feature exists
In when computer program is run by processor the step of any one of execution the claims 1 to 7 the method.
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