CN107609183A - Original coordinates data are converted to the method, apparatus and equipment of spherical coordinate data - Google Patents
Original coordinates data are converted to the method, apparatus and equipment of spherical coordinate data Download PDFInfo
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- CN107609183A CN107609183A CN201710912353.2A CN201710912353A CN107609183A CN 107609183 A CN107609183 A CN 107609183A CN 201710912353 A CN201710912353 A CN 201710912353A CN 107609183 A CN107609183 A CN 107609183A
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Abstract
The invention discloses a kind of method that original coordinates data are converted to spherical coordinate data, by obtaining the original coordinates data under original coordinate system, further according to the transformational relation between the original coordinate system and goal-selling coordinate system, the original coordinates data are converted into longitude and latitude degrees of data, then according to the transformational relation between the goal-selling coordinate system and default spheric coordinate system, the longitude and latitude data are converted into spherical coordinate data.It can be seen that the present invention makes full use of original coordinates data, it is only necessary to obtains original coordinates data, it is possible to realizes automatically original coordinates data being first converted into latitude data, be reconverted into spherical coordinate data.Whole transfer process is realized automatically, is saved manpower and time, is reduced transfer process complexity, improve conversion efficiency.Present invention also offers a kind of device, equipment and a kind of readable computer storage medium that original coordinates data are converted to spherical coordinate data, its effect are corresponding with the above method.
Description
Technical field
The present invention relates to field of computer technology, and original coordinates data are converted into spherical coordinate number more particularly to one kind
According to method, apparatus, equipment and a kind of computer-readable recording medium.
Background technology
In city survey and engineering survey, in order to meet the actual demand in engineering, it is often necessary to establish local coordinate system
System, for example, for the city survey in Hangzhou, establishes Hangzhou City coordinate system.And other application scenarios are considered, it is in need
Using some spheric coordinate systems.For example, in face of space technology, information technology and its application technology fast development and extensively it is general
And the science in the field such as China's space flight, ocean, earthquake, meteorology, water conservancy, construction, planning, geologic survey, land and resources administration is ground
Studying carefully needs one using universal reference benchmark as background, national unified, harmonious coordinate system.Therefore, it is necessary to utilize
Coordinate Conversion is realized a kind of origin coordinate system transform to another spherical coordinate system.
In the prior art, a kind of coordinate transformation method is to utilize common point to solve the conversion parameter between two sets of coordinate systems,
Coordinate Conversion is realized using conversion parameter.For example, two dimension seven can be selected to join the Coordinate Conversion of the provincial scope of national one-level
Number transformation models, provincial following Coordinate Conversion can select three-dimensional four parameter model or plane four parameter model, and for
Relatively independent plane coordinate system, Coordinate Conversion can be realized by establishing coordinate system transition.
Another coordinate transformation method is, by being realized with the high-grade translocation with CGCS2000 coordinates to inferior grade
The method that GPS network coordinate enters row constraint adjustment realizes Coordinate Conversion.
Also a kind of coordinate transformation method is to change the point with ITRF frame coordinates in fact by transferring frame and epoch
Existing Coordinate Conversion.
However, above prior art coordinate transform process is sufficiently complex, and needs manually to choose special point, it is time-consuming to take
Power, conversion efficiency are very low.
The content of the invention
Original coordinates data are converted into the method, apparatus of spherical coordinate data, set it is an object of the invention to provide a kind of
Standby and a kind of computer-readable recording medium, to solve coordinate transform process complexity, waste time and energy, conversion efficiency is low to ask
Topic.
In order to solve the above technical problems, the present invention provides a kind of side that original coordinates data are converted to spherical coordinate data
Method, including：
Obtain the original coordinates data under original coordinate system；
According to the transformational relation between the original coordinate system and goal-selling coordinate system, the original coordinates data are turned
It is changed to longitude and latitude degrees of data；
According to the transformational relation between the goal-selling coordinate system and default spheric coordinate system, by the longitude and latitude degrees of data
Be converted to spherical coordinate data.
Wherein, before the original coordinates data under the acquisition original coordinate system, in addition to：
Origin system is obtained, line displacement is entered to the origin system and obtains the original coordinate system.
Wherein, the transformational relation according between the goal-selling coordinate system and default spheric coordinate system, by described in
Longitude and latitude data, which are converted to spherical coordinate data, to be included：
According to the ellipticity of the earth, major radius and short radius, the national earth coordinates are pre-established, according to described default
Transformational relation between target-based coordinate system and the national earth coordinates, the longitude and latitude data are converted into geodetic coordinates number
According to.
Wherein, the transformational relation according between the original coordinate system and goal-selling coordinate system, will be described original
Coordinate data, which is converted into latitude data, to be included：
According to the transformational relation between the original coordinate system and goal-selling coordinate system, by GDAL by the original seat
Mark data are converted to longitude and latitude degrees of data；
The transformational relation according between the goal-selling coordinate system and default spheric coordinate system, by the longitude and latitude
Data, which are converted to spherical coordinate data, to be included：
According to the transformational relation between the goal-selling coordinate system and default spheric coordinate system, by GDAL by the warp
Latitude data is converted to spherical coordinate data.
Present invention also offers a kind of device that original coordinates data are converted to spherical coordinate data, including：
Acquisition module：For obtaining the original coordinates data under original coordinate system；
First modular converter：For according to the transformational relation between the original coordinate system and goal-selling coordinate system, inciting somebody to action
The original coordinates data are converted to longitude and latitude degrees of data；
Second modular converter：For being closed according to the conversion between the goal-selling coordinate system and default spheric coordinate system
The longitude and latitude data are converted to spherical coordinate data by system.
Wherein, described device also includes：
Offset module：For obtaining origin system, line displacement is entered to the origin system and obtains the original coordinates
System.
Wherein, first modular converter can be also used for, and according to the ellipticity of the earth, major radius and short radius, build in advance
The international earth coordinates are found, are closed according to the conversion between the goal-selling coordinate system and the international earth coordinates
The longitude and latitude data are converted to geodetic coordinates data by system.
Wherein, first modular converter can be also used for, according to the original coordinate system and goal-selling coordinate system it
Between transformational relation, the original coordinates data are converted to by longitude and latitude degrees of data by GDAL；
Second modular converter can be also used for, according between the goal-selling coordinate system and default spheric coordinate system
Transformational relation, the longitude and latitude data are converted to by spherical coordinate data by GDAL.
In addition, present invention also offers a kind of equipment that original coordinates data are converted to spherical coordinate data, including：
Memory, for storing computer program；
Processor, realize during for performing the computer program and foregoing original coordinates data are converted into spherical coordinate number
According to method the step of.
Finally, present invention also offers a kind of computer-readable recording medium, deposited on the computer-readable recording medium
Contain computer program, the computer program is realized when being executed by processor foregoing to be converted to sphere by original coordinates data and sit
The step of marking the method for data.
The method provided by the present invention that original coordinates data are converted to spherical coordinate data, by obtaining original coordinates
Original coordinates data under system, further according to the transformational relation between the original coordinate system and goal-selling coordinate system, by described in
Original coordinates data are converted to longitude and latitude degrees of data, then according between the goal-selling coordinate system and default spheric coordinate system
Transformational relation, the longitude and latitude data are converted into spherical coordinate data.
It can be seen that compared with prior art, the side provided by the invention that original coordinates data are converted to spherical coordinate data
Method, make full use of original coordinates data, it is only necessary to obtain original coordinates data, it is possible to automatic to realize original coordinates data elder generation
Latitude data is converted into, is reconverted into spherical coordinate data.Whole transfer process is realized automatically, saves manpower and time,
Transfer process complexity is reduced, improves conversion efficiency.
Present invention also offers a kind of device, equipment and one kind that original coordinates data are converted to spherical coordinate data
Readable computer storage medium, its effect is corresponding with the above-mentioned method that original coordinates data are converted to spherical coordinate data,
Here repeat no more.
Brief description of the drawings
, below will be to embodiment or existing for the clearer explanation embodiment of the present invention or the technical scheme of prior art
The required accompanying drawing used is briefly described in technology description, it should be apparent that, drawings in the following description are only this hair
Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the flow of the embodiment of the method one provided by the invention that original coordinates data are converted to spherical coordinate data
Figure；
Fig. 2 is the flow of the embodiment of the method two provided by the invention that original coordinates data are converted to spherical coordinate data
Figure；
Fig. 3 is the structured flowchart of the device provided by the invention that original coordinates data are converted to spherical coordinate data.
Embodiment
The core of the present invention, which is to provide, a kind of to be converted to the method, apparatus of spherical coordinate data by original coordinates data, sets
Standby and a kind of computer-readable recording medium, transfer process complexity is reduced, is saved manpower and time, improve conversion efficiency.
In order that those skilled in the art more fully understand the present invention program, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.Obviously, described embodiment is only part of the embodiment of the present invention, rather than
Whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
The embodiment of the method one provided by the invention that original coordinates data are converted to spherical coordinate data is described below, joins
See Fig. 1, embodiment one specifically includes：
Step S11：Obtain the original coordinates data under original coordinate system.
In the present embodiment, original coordinates data are the data under original coordinate system, and original coordinates data are seats to be converted
Data are marked, original coordinate system can be local coordinate.
Coordinate Conversion typically in GIS-Geographic Information System, it is that a coordinate system is projected into another coordinate system, accordingly
, the coordinate of model is also transformed into another coordinate system from a coordinate system, that is, model vertices are changed from a coordinate system
To another coordinate system.Therefore, original coordinate data can be model vertices data in the present embodiment.
Step S12：According to the transformational relation between the original coordinate system and goal-selling coordinate system, by the original seat
Mark data are converted to longitude and latitude degrees of data.
Specifically, original coordinate system and preset coordinate system can be pre-entered, pass through the GDAL that increases income, it is possible to realize original
Beginning coordinate data projects to preset coordinate data.That is, input original coordinate system and goal-selling coordinate system and then defeated
Enter original coordinates data, pass through the GDAL that increases income, it is possible to data of the original coordinates data under goal-selling coordinate system are obtained,
It is exactly longitude and latitude degrees of data.
Step S13：According to the transformational relation between the goal-selling coordinate system and default spheric coordinate system, by the warp
Latitude data is converted to spherical coordinate data.
In the present embodiment, spheric coordinate system can be pre-established, then input spherical coordinate, it is possible to which being realized by GDAL will
Longitude and latitude data are converted to spherical coordinate data.
The method that original coordinates data are converted to spherical coordinate data that the present embodiment is provided, by obtaining original seat
Original coordinates data under mark system, further according to the transformational relation between the original coordinate system and goal-selling coordinate system, by institute
State original coordinates data and be converted to longitude and latitude degrees of data, then according between the goal-selling coordinate system and default spheric coordinate system
Transformational relation, the longitude and latitude data are converted into spherical coordinate data.
It can be seen that the method that original coordinates data are converted to spherical coordinate data that the present embodiment provides, makes full use of original
Beginning coordinate data, it is only necessary to obtain original coordinates data, it is possible to realize automatically and original coordinates data are first converted into latitude
Data, it is reconverted into spherical coordinate data.Whole transfer process is realized automatically, is saved manpower and time, is reduced converted
Journey complexity, improves conversion efficiency.
The method that original coordinates data are converted to spherical coordinate data of the offer of embodiment one can realize automatic conversion
Data, human time is saved, reduce switch complexity, improve conversion efficiency.But because original coordinates data may
It is a larger data, is unfavorable for being calculated.For this situation, the invention provides be converted to original coordinates data
The embodiment of the method two of spherical coordinate data, referring to Fig. 2, embodiment two specifically includes：
Step S21：Origin system is obtained, line displacement is entered to the origin system and obtains original coordinate system.
Specifically, origin system can be obtained, origin system is entered according to data of the model under origin system
The rational skew of row.For example, deviant can be 4*4 matrix.
Step S22：Obtain the model vertices data under original coordinate system.
It is corresponding with step S21, the model vertices data under original coordinate system are obtained, that is, model is sat in origin
Coordinate data under mark system is offset accordingly, and what is obtained is exactly model vertices data of the model under original coordinate system.
Step S23：According to the transformational relation between the original coordinate system and goal-selling coordinate system, by GDAL by original
Beginning coordinate data is converted into latitude data.
Step S24：According to the ellipticity of the earth, major radius and short radius, the national earth coordinates are pre-established.
Specifically, the formula that longitude and latitude (B, L, H) is transformed into original coordinate system (X, Y, Z) isIn formulaN is the radius of prime vertical；A is the length of reference ellipsoid
Semiaxis, b are the semi-minor axis of reference ellipsoid；E is the first flat heart rate of reference ellipsoid.
It can derive accordingly, the formula that original coordinate system (X, Y, Z) is converted into latitude (B, L, H) is
In formula, e ' is the second flat heart rate of reference ellipsoid；According to the ellipticity of the earth,
Major radius, short radius parameter, you can construct national earth coordinates.
Step S25：According to the transformational relation between the goal-selling coordinate system and the national earth coordinates, pass through
Longitude and latitude data are converted to national geodetic coordinates data by GDAL.
Specifically, according to latitude and longitude value, calculate national geodetic coordinates and fasten corresponding position.I.e. according to longitude, latitude,
Height value, calculate value corresponding to national earth coordinates.Model data under original coordinate system, all summits are all according to this side
Method carries out computing.
The method that original coordinates data are converted to spherical coordinate data that the present embodiment provides, not only can automatically be changed
Realize, save manpower and time, reduce switch complexity, improve conversion efficiency.Can also be by being closed to origin system
The skew of reason obtains original coordinate system so that model vertices data of the model under original coordinate system are easier to calculate, and reduce
Difficulty in computation, further increase Coordinate Conversion efficiency.
The device provided in an embodiment of the present invention that original coordinates data are converted to spherical coordinate data is situated between below
Continue, it is described below by original coordinates data be converted to the devices of spherical coordinate data with it is above-described by original coordinates data
The method for being converted to spherical coordinate data can be mutually to should refer to.
Fig. 3 is the structural frames of the device provided in an embodiment of the present invention that original coordinates data are converted to spherical coordinate data
Figure, the device can include：
Acquisition module 31：For obtaining the original coordinates data under original coordinate system.
First modular converter 32：For according to the original coordinate system and goal-selling coordinate system, by the original coordinates
Data are converted to longitude and latitude degrees of data.
Second modular converter 33：For according to the goal-selling coordinate system and default spheric coordinate system, by the longitude and latitude
Degrees of data is converted to spherical coordinate data.
Described device can also include：
Offset module：For obtaining origin system, line displacement is entered to the origin system and obtains the original coordinates
System.
Wherein, first modular converter can be also used for, and according to the ellipticity of the earth, major radius and short radius, build in advance
The international earth coordinates are found, are closed according to the conversion between the goal-selling coordinate system and the international earth coordinates
The longitude and latitude data are converted to geodetic coordinates data by system.
Wherein, first modular converter can be also used for, according to the original coordinate system and goal-selling coordinate system it
Between transformational relation, the original coordinates data are converted to by longitude and latitude degrees of data by GDAL.
Second modular converter can be also used for, according between the goal-selling coordinate system and default spheric coordinate system
Transformational relation, the longitude and latitude data are converted to by spherical coordinate data by GDAL.
The device that original coordinates data are converted to spherical coordinate data of the present embodiment be used to realizing it is foregoing will be original
The method that coordinate data is converted to spherical coordinate data, therefore original coordinates data are converted in the device of spherical coordinate data
The visible method that original coordinates data are converted to spherical coordinate data hereinbefore of embodiment embodiment part.
For example, acquisition module 31, the first modular converter 32 and the second modular converter 33, are respectively used to realize step S11 in the above method,
Step S12 and step S13.So its embodiment is referred to the description of corresponding various pieces embodiment, herein not
Repeat again.
The device that original coordinates data are converted to spherical coordinate data of the present embodiment offer is foregoing by original for realizing
The method that beginning coordinate data is converted to spherical coordinate data, therefore, the effect of the present embodiment turn original coordinates data with foregoing
It is corresponding to be changed to the effect of spherical coordinate data, is not repeating herein.
In addition, present invention also offers a kind of equipment that original coordinates data are converted to spherical coordinate data, bag
Include：
Memory, for storing computer program；
Processor, realize during for performing the computer program and foregoing original coordinates data are converted into spherical coordinate number
According to method the step of.
Finally present invention also offers a kind of computer-readable recording medium, stored on the computer-readable recording medium
There is a computer program, the computer program is realized when being executed by processor foregoing is converted to spherical coordinate by original coordinates data
The step of method of data.
It is provided by the invention that original coordinates data are converted into the equipment of spherical coordinate data and a kind of computer-readable
Storage medium, for realize it is foregoing original coordinates data are converted to spherical coordinate data method the step of, its act on before
It is corresponding to state method, repeats no more here.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be with it is other
The difference of embodiment, between each embodiment same or similar part mutually referring to.For dress disclosed in embodiment
For putting, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is referring to method part
Explanation.
Professional further appreciates that, with reference to the unit of each example of the embodiments described herein description
And algorithm steps, can be realized with electronic hardware, computer software or the combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software, the composition and step of each example are generally described according to function in the above description.These
Function is performed with hardware or software mode actually, application-specific and design constraint depending on technical scheme.Specialty
Technical staff can realize described function using distinct methods to each specific application, but this realization should not
Think beyond the scope of this invention.
Directly it can be held with reference to the step of method or algorithm that the embodiments described herein describes with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Above to method, apparatus, the equipment provided by the present invention that original coordinates data are converted to spherical coordinate data
And a kind of computer-readable recording medium is described in detail.Specific case used herein to the principle of the present invention and
Embodiment is set forth, and the explanation of above example is only intended to help the method and its core concept for understanding the present invention.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, can also be right
The present invention carries out some improvement and modification, and these are improved and modification is also fallen into the protection domain of the claims in the present invention.
Claims (10)
- A kind of 1. method that original coordinates data are converted to spherical coordinate data, it is characterised in that including：Obtain the original coordinates data under original coordinate system；According to the transformational relation between the original coordinate system and goal-selling coordinate system, the original coordinates data are converted to Longitude and latitude degrees of data；According to the transformational relation between the goal-selling coordinate system and default spheric coordinate system, by the longitude and latitude data conversion For spherical coordinate data.
- 2. the method as described in claim 1, it is characterised in that it is described acquisition original coordinate system under original coordinates data it Before, in addition to：Origin system is obtained, line displacement is entered to the origin system and obtains the original coordinate system.
- 3. the method as described in claim 1, it is characterised in that described to be sat according to the goal-selling coordinate system and default sphere Transformational relation between mark system, the longitude and latitude data are converted into spherical coordinate data includes：According to the ellipticity of the earth, major radius and short radius, the national earth coordinates are pre-established, according to the goal-selling Transformational relation between coordinate system and the national earth coordinates, the longitude and latitude data are converted into geodetic coordinates data.
- 4. the method as described in claim 1, it is characterised in that described according to the original coordinate system and goal-selling coordinate system Between transformational relation, the original coordinates data are converted into longitude and latitude data includes：According to the transformational relation between the original coordinate system and goal-selling coordinate system, by GDAL by the original coordinates number According to being converted into latitude data；The transformational relation according between the goal-selling coordinate system and default spheric coordinate system, by the longitude and latitude degrees of data Being converted to spherical coordinate data includes：According to the transformational relation between the goal-selling coordinate system and default spheric coordinate system, by GDAL by the longitude and latitude Data are converted to spherical coordinate data.
- A kind of 5. device that original coordinates data are converted to spherical coordinate data, it is characterised in that including：Acquisition module：For obtaining the original coordinates data under original coordinate system；First modular converter：For according to the transformational relation between the original coordinate system and goal-selling coordinate system, will described in Original coordinates data are converted to longitude and latitude degrees of data；Second modular converter：For according to the transformational relation between the goal-selling coordinate system and default spheric coordinate system, inciting somebody to action The longitude and latitude data are converted to spherical coordinate data.
- 6. device as claimed in claim 5, it is characterised in that described device also includes：Offset module：For obtaining origin system, line displacement is entered to the origin system and obtains the original coordinate system.
- 7. device as claimed in claim 5, it is characterised in that first modular converter is additionally operable to：According to the ellipticity of the earth, Major radius and short radius, the international earth coordinates are pre-established, it is big according to the goal-selling coordinate system and the world Transformational relation between ground coordinate system, the longitude and latitude data are converted into geodetic coordinates data.
- 8. device as claimed in claim 5, it is characterised in that first modular converter is additionally operable to：According to the original seat The original coordinates data are converted to the longitude and latitude number of degrees by the transformational relation between mark system and goal-selling coordinate system by GDAL According to；Second modular converter is additionally operable to：Closed according to the conversion between the goal-selling coordinate system and default spheric coordinate system The longitude and latitude data are converted to spherical coordinate data by system by GDAL.
- A kind of 9. equipment that original coordinates data are converted to spherical coordinate data, it is characterised in that including：Memory, for storing computer program；Processor, realize original coordinates data as described in any one of Claims 1-4 during for performing the computer program The step of being converted to the method for spherical coordinate data.
- 10. a kind of computer-readable recording medium, it is characterised in that be stored with computer on the computer-readable recording medium Program, realize when the computer program is executed by processor and turn original coordinates data as described in any one of Claims 1-4 The step of being changed to the method for spherical coordinate data.
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| CN111324172A (en) * | 2018-12-13 | 2020-06-23 | 北京松果电子有限公司 | Remote rod calibration method and device, electronic equipment and storage medium |
| CN111429529A (en) * | 2020-04-10 | 2020-07-17 | 浙江大华技术股份有限公司 | Calibration method for coordinate transformation, electronic equipment and computer storage medium |
| CN111447002A (en) * | 2020-03-18 | 2020-07-24 | 重庆邮电大学 | High-speed terminal switching strategy method for satellite mobile communication system |
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