CN114299142B - Missile threat range determining method and device on two-dimensional world map - Google Patents
Missile threat range determining method and device on two-dimensional world map Download PDFInfo
- Publication number
- CN114299142B CN114299142B CN202111601775.0A CN202111601775A CN114299142B CN 114299142 B CN114299142 B CN 114299142B CN 202111601775 A CN202111601775 A CN 202111601775A CN 114299142 B CN114299142 B CN 114299142B
- Authority
- CN
- China
- Prior art keywords
- missile
- range
- series
- world map
- point coordinates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention provides a method, device electronic equipment and storage medium for determining a missile threat range on a two-dimensional world map, wherein the determining method comprises the steps of firstly serializing circles on the surface of a ground into a series of point coordinates; the circle on the surface of the earth takes a missile launching point as the center of a circle and the missile range as the radius; then, respectively translating the series of point coordinates to the right and the left by 360 degrees in the longitude direction and reserving the series of point coordinates before translation; wherein the translation operation is performed in a two-dimensional coordinate system with longitude as abscissa and latitude as ordinate; wherein the two-dimensional world map is drawn in the range of the abscissa of the coordinate system of [ -30,300] or [ -180,180]; finally, judging whether the south pole and the north pole are in the missile range, and determining the missile threat range according to the judgment result, the series of point coordinates before translation and the series of point coordinates after translation; the invention can accurately determine the threat range of the missile on the two-dimensional world map when the missile range is large.
Description
Technical Field
The invention relates to the technical field of maps, in particular to a method and a device for determining a missile threat range on a two-dimensional world map, electronic equipment and a storage medium.
Background
The world map is formed by cutting the earth surface along one direction and then spreading and paving the earth surface; the world map of the atlantic edition and the world map of the atlantic edition are commonly used internationally; the cutting lines of the two are respectively 30 degrees longitude lines and 180 degrees longitude lines of the west longitude; the meridian coordinate ranges of the world map after cutting are [ -30,300], [ -180,180]; when a circle is drawn on the earth and the earth is cut along one direction, the effect of the circle on a map after being unfolded and tiled can be split by the upper boundary, the lower boundary, the left boundary and the right boundary of the map, so that the condition that the circle on a two-dimensional world map drawn in a conventional sense is inaccurate is caused, and when the threat range of a missile is determined, the inaccuracy of the circle drawn on the two-dimensional world map has great influence, so that a method capable of accurately drawing the circle on the two-dimensional world map is needed to accurately determine the threat range of the missile.
Disclosure of Invention
The embodiment of the invention provides a method and a device for determining a missile threat range on a two-dimensional world map, which can accurately determine the missile threat range on the two-dimensional world map.
In a first aspect, an embodiment of the present invention provides a method for determining a threat range of a missile on a two-dimensional world map, where the method for determining the threat range of the missile includes:
serializing a circle of the earth's surface into a series of point coordinates;
the circle on the surface of the earth takes a missile launching point as the center of a circle and the missile range as the radius;
the point coordinate is based on longitude as an abscissa and latitude as an ordinate;
translating the series of point coordinates to the right and left by 360 degrees in the longitude direction respectively and reserving the series of point coordinates before translation;
wherein the translation operation is performed in a two-dimensional coordinate system with longitude as abscissa and latitude as ordinate, and the range of the abscissa of the two-dimensional coordinate system is from negative infinity to positive infinity;
wherein the two-dimensional world map is drawn in a range with an abscissa of [ -30,300] or [ -180,180] in the coordinate system;
and judging whether the south pole and the north pole are in the missile range, and determining the missile threat range according to the judgment result, the series of point coordinates before translation and the series of point coordinates after translation.
Optionally, a geodetic theme correct problem correlation algorithm is used when serializing a circle of the earth's surface into a series of point coordinates.
Optionally, the determining method further includes setting a region where the two-dimensional world map is located as a cropping zone;
setting the area where the two-dimensional world map is located as a cropping area, wherein the part of the series of point coordinates before translation and the part of the series of point coordinates after translation outside the two-dimensional world map are deleted;
and a curve formed by a series of point coordinates retained on the two-dimensional world map is the boundary of the missile threat range.
Optionally, if the judgment result is that only the south pole is within the range of the missile, the boundary of the missile threat range is split by the south boundary of the two-dimensional world map, and the missile threat range is an area surrounded by the boundary of the missile threat range and the south boundary of the two-dimensional world map.
Optionally, if the judgment result shows that only the north pole is within the range of the missile, the boundary of the missile threat range is split by the north boundary of the two-dimensional world map, and the missile threat range is an area surrounded by the boundary of the missile threat range and the north boundary of the two-dimensional world map.
Optionally, if the judgment result shows that the south pole and the north pole are both within the range of the missile, the missile threat range is an area defined by the boundary of the missile threat range, the east-west boundary and the south-north boundary of the two-dimensional world map.
Optionally, if the judgment result shows that the south pole and the north pole are not within the range of the missile, the missile threat range is a closed graphic area defined by a series of point coordinates on the two-dimensional world map.
In a second aspect, an embodiment of the present invention provides a missile threat range determination apparatus on a two-dimensional world map, where the determination apparatus includes:
the calculation module is used for serializing the circles on the earth surface into a series of point coordinates;
the circle on the surface of the earth takes a missile launching point as a circle center and takes a missile range as a radius;
the point coordinate is based on longitude as an abscissa and latitude as an ordinate;
the translation module is used for respectively translating the series of point coordinates to the right and the left by 360 degrees in the longitude direction and reserving the series of point coordinates before translation;
wherein the translation operation is performed in a two-dimensional coordinate system with longitude as abscissa and latitude as ordinate, and the range of the abscissa of the two-dimensional coordinate system is from negative infinity to positive infinity;
wherein the two-dimensional world map is drawn in a range with an abscissa of [ -30,300] or [ -180,180] in the coordinate system;
and the judgment and determination module is used for judging whether the south pole and the north pole are in the range of the missile and determining the threat range of the missile according to the judgment result, the series of point coordinates before translation and the series of point coordinates after translation.
In a third aspect, an embodiment of the present invention provides an electronic device, which includes a memory and a processor, where the memory stores a computer program, and the processor implements the method according to any one of the first aspect when executing the program.
In a fourth aspect, an embodiment of the invention provides a computer-readable storage medium on which is stored a computer program which, when executed by a processor, implements the method of any one of the first aspects.
Advantageous effects
The invention provides a method, device electronic equipment and storage medium for determining a missile threat range on a two-dimensional world map, wherein the determining method comprises the steps of firstly serializing circles on the surface of a ground into a series of point coordinates; the circle on the surface of the earth takes a missile launching point as a circle center and takes a missile range as a radius; the point coordinate is based on longitude as an abscissa and latitude as an ordinate; then, respectively translating the series of point coordinates to the right and the left by 360 degrees in the longitude direction and reserving the series of point coordinates before translation; wherein the translation operation is performed in a two-dimensional coordinate system with longitude as abscissa and latitude as ordinate, and the range of the abscissa of the two-dimensional coordinate system is from negative infinity to positive infinity; wherein the two-dimensional world map is drawn in a range with an abscissa of [ -30,300] or [ -180,180] in the coordinate system; finally, judging whether the south pole and the north pole are in the missile range, and determining the missile threat range according to the judgment result, the series of point coordinates before translation and the series of point coordinates after translation; through the steps, the missile threat range can be accurately determined on the two-dimensional world map when the missile range is large.
It should be understood that the statements herein reciting aspects are not intended to limit the critical or essential features of any embodiment of the invention, nor are they intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.
Drawings
The above and other features, advantages and aspects of various embodiments of the present invention will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar elements.
FIG. 1 is a flow chart of a method for determining threat areas of missiles on a two-dimensional world map according to an embodiment of the invention;
FIG. 2 shows an exemplary illustration of the area of a missile threat zone with only a south pole within range of the missile for embodiments of the present invention;
FIG. 3 shows an exemplary plot of the area of a missile threat zone with only the North Pole within range of the missile for an embodiment of the invention;
FIG. 4 shows an exemplary plot of an area of a missile threat range when both the south and north poles are within range of the missile according to embodiments of the present invention;
FIG. 5 shows another example plot of a region of a missile threat range when both the south and north poles are within range of the missile in accordance with an embodiment of the invention;
FIG. 6 shows an exemplary plot of the area of a missile threat zone when neither the south nor the north pole is within range of the missile in an embodiment of the invention;
fig. 7 is a schematic structural diagram of a missile threat range determination device on a two-dimensional world map according to an embodiment of the present invention;
fig. 8 is a block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in one or more embodiments of the present disclosure, the technical solutions in one or more embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in one or more embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all embodiments. All other embodiments that can be derived by a person skilled in the art from one or more of the embodiments described herein without making any inventive step shall fall within the scope of protection of this document.
The present invention is described below with specific examples, and it should be noted that the descriptions in the examples of the present application are only for clearly illustrating the technical solutions in the examples of the present application, and do not limit the technical solutions provided in the examples of the present application.
Fig. 1 shows a flowchart of a missile threat range determination method on a two-dimensional world map according to an embodiment of the present invention. Referring to fig. 1, the determination method includes:
s20, serializing the circles on the earth surface into a series of point coordinates;
specifically, a geodetic theme correct problem correlation algorithm is used to serialize circles of the earth's surface into a series of point coordinates; the circle on the surface of the earth takes a missile launching point as the center of a circle and the missile range as the radius; the point coordinates are longitude as abscissa and latitude as ordinate;
the geodetic measurement subject calculation problem correlation algorithm comprises the steps of directly carrying out integral operation on an ellipsoid of the earth on the basis of a differential equation of a geodetic line in a geodetic coordinate system, wherein an integral expression must be expanded by a series number;
solving the geodetic problem on a spherical surface on the basis of Bai Saier geodetic projection;
solving the geodetic theme problem by using a map projection theory, and adopting orthomorphic projection to a spherical surface, equidistant projection and orthomorphic projection to a plane;
s40, respectively translating the series of point coordinates to the right and the left by 360 degrees in the longitude direction and reserving the series of point coordinates before translation;
specifically, the series of point coordinates obtained in step S20 are respectively shifted to the right and left by 360 degrees in the longitudinal direction in a two-dimensional coordinate system having longitude as an abscissa and latitude as an ordinate, and the series of point coordinates obtained in step S20 are retained; the range of the abscissa of the two-dimensional coordinate system is minus infinity to plus infinity and a two-dimensional world map is drawn within the range of the abscissa of the coordinate system of [ -30,300] or [ -180,180];
s60, judging whether the south pole and the north pole are in the missile range, and determining the missile threat range according to the judgment result, the series of point coordinates before translation and the series of point coordinates after translation.
Specifically, firstly, whether the south pole and the north pole are in the range of the missile needs to be judged; then determining the missile threat range by setting the area of the two-dimensional world map as a clipping area according to the judgment result; setting the area where the two-dimensional world map is located as a cropping area, wherein the part of the series of point coordinates before translation and the part of the series of point coordinates after translation outside the two-dimensional world map are deleted;
if the judgment result is that only the south pole is in the missile range, the boundary of the missile threat range is split by the south boundary of the two-dimensional world map, and the missile threat range is an area enclosed by the boundary of the missile threat range and the south boundary of the two-dimensional world map; if the judgment result is that only the north pole is in the missile range, the boundary of the missile threat range is split by the north boundary of the two-dimensional world map, and the missile threat range is an area enclosed by the boundary of the missile threat range and the north boundary of the two-dimensional world map; if the judgment result is that the south pole and the north pole are both within the missile range, the missile threat range is an area defined by the boundary of the missile threat range, east-west boundary and south-north boundary of the two-dimensional world map; and if the judgment result shows that the south pole and the north pole are not in the range of the missile, the missile threat range is a closed graphic area defined by a series of point coordinates on the two-dimensional world map.
The invention provides a method, device electronic equipment and storage medium for determining a missile threat range on a two-dimensional world map, wherein the determining method comprises the steps of firstly serializing circles on the surface of a ground into a series of point coordinates; the circle on the surface of the earth takes a missile launching point as the center of a circle and the missile range as the radius; the point coordinate is based on longitude as an abscissa and latitude as an ordinate; then, respectively translating the series of point coordinates to the right and the left by 360 degrees in the longitude direction and reserving the series of point coordinates before translation; wherein the translation operation is performed in a two-dimensional coordinate system with longitude as abscissa and latitude as ordinate, and the range of the abscissa of the two-dimensional coordinate system is from negative infinity to positive infinity; wherein the two-dimensional world map is drawn in a range with an abscissa of [ -30,300] or [ -180,180] in the coordinate system; finally, judging whether the south pole and the north pole are in the missile range, and determining the missile threat range according to the judgment result, the series of point coordinates before translation and the series of point coordinates after translation; through the steps, the missile threat range can be accurately determined on the two-dimensional world map when the missile range is large.
FIG. 2 shows an exemplary illustration of the area of a missile threat zone with only a south pole within range of the missile for embodiments of the present invention; as shown in the figure:
when the south pole is in the missile range and the north pole is not in the missile range, the two-dimensional world map area is set as a clipping area, and the threat range of the missile after deleting the series of point coordinates before translation and the series of point coordinates after translation outside the two-dimensional world map is an area enclosed by the boundary of the threat range of the missile and the south boundary of the two-dimensional world map, as shown in fig. 2.
FIG. 3 shows an exemplary plot of the area of threat zone of a missile with only the arctic within range of the missile for an embodiment of the invention;
when the north pole is in the missile range and the south pole is not in the missile range, the two-dimensional world map area is set as a clipping area, and the threat range of the missile after deleting the series of point coordinates before translation and the series of point coordinates after translation outside the two-dimensional world map is an area enclosed by the boundary of the threat range of the missile and the north boundary of the two-dimensional world map, as shown in fig. 3.
When the south pole and the north pole are both in the range of the missile, the two-dimensional world map area is set as a clipping area, and the threat range of the missile after deleting the series of point coordinates before translation and the series of point coordinates after translation outside the two-dimensional world map is the area defined by the boundary of the threat range of the missile, east-west boundaries of the two-dimensional world map and four south-north boundaries; as shown in fig. 4 and 5.
FIG. 6 shows an exemplary plot of the area of a missile threat zone when neither the south nor the north pole is within range of the missile in an embodiment of the invention;
when the south pole and the north pole are not in the range of the missile, the step of setting a two-dimensional world map area as a clipping area is not needed, and the threat range of the missile is a closed graphic area defined by a series of point coordinates on the two-dimensional world map; as shown in fig. 6.
Based on the same inventive concept, the embodiment of the present invention further provides a device for determining a threat range of a missile on a two-dimensional world map, which can be used for implementing the method for determining a threat range of a missile on a two-dimensional world map described in the above embodiments, as described in the following embodiments: because the principle of solving the problems of the device for determining the threat range of the missile on the two-dimensional world map is similar to the method for determining the threat range of the missile on the two-dimensional world map, the implementation of the device for determining the threat range of the missile on the two-dimensional world map can refer to the implementation of the method for determining the threat range of the missile on the two-dimensional world map, and repeated parts are not described again. As used hereinafter, the term "unit" or "module" may be a combination of software and/or hardware that implements a predetermined function. While the system described in the embodiments below is preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.
Fig. 7 shows a block diagram of a missile threat range determination apparatus on a two-dimensional world map according to an embodiment of the present invention. As shown in fig. 7, the determining means includes:
the calculation module is used for serializing the circles on the earth surface into a series of point coordinates;
the circle on the surface of the earth takes a missile launching point as the center of a circle and the missile range as the radius;
the point coordinate is based on longitude as an abscissa and latitude as an ordinate;
the translation module is used for respectively translating the series of point coordinates to the right and the left by 360 degrees in the longitude direction and reserving the series of point coordinates before translation;
wherein the translation operation is performed in a two-dimensional coordinate system with longitude as abscissa and latitude as ordinate, and the range of the abscissa of the two-dimensional coordinate system is from negative infinity to positive infinity;
wherein the two-dimensional world map is drawn in a range with an abscissa of [ -30,300] or [ -180,180] in the coordinate system;
and the judgment and determination module is used for judging whether the south pole and the north pole are in the range of the missile and determining the threat range of the missile according to the judgment result, the series of point coordinates before translation and the series of point coordinates after translation.
The embodiment of the invention provides a device for determining the threat range of a missile on a two-dimensional world map, wherein the device sequences circles on the surface of the earth into a series of point coordinates through a computing module 20; the translation module 40 is used for respectively translating the series of point coordinates to the right and the left by 360 degrees in the longitude direction and reserving the series of point coordinates before translation; and the judgment and determination module 60 is used for judging whether the south pole and the north pole are in the range of the missile and determining the threat range of the missile according to the judgment result, the series of point coordinates before translation and the series of point coordinates after translation.
The invention provides a method, device electronic equipment and storage medium for determining a missile threat range on a two-dimensional world map, wherein the determining method comprises the steps of firstly serializing circles on the surface of a ground into a series of point coordinates; the circle on the surface of the earth takes a missile launching point as the center of a circle and the missile range as the radius; the point coordinate is based on longitude as an abscissa and latitude as an ordinate; then, respectively translating the series of point coordinates to the right and the left by 360 degrees in the longitude direction and reserving the series of point coordinates before translation; wherein the translation operation is performed in a two-dimensional coordinate system with longitude as abscissa and latitude as ordinate, and the range of the abscissa of the two-dimensional coordinate system is from negative infinity to positive infinity; wherein the two-dimensional world map is drawn in a range with an abscissa of [ -30,300] or [ -180,180] in the coordinate system; finally, judging whether the south pole and the north pole are in the missile range, and determining the missile threat range according to the judgment result, the series of point coordinates before translation and the series of point coordinates after translation; through the steps, the missile threat range can be accurately determined on the two-dimensional world map when the missile range is large.
Fig. 8 is a schematic structural diagram of an electronic device to which an embodiment of the present invention can be applied, and as shown in fig. 8, the electronic device includes a Central Processing Unit (CPU) 801 which can perform various appropriate actions and processes according to a program stored in a Read Only Memory (ROM) 802 or a program loaded from a storage section 1008 into a Random Access Memory (RAM) 803. In the RAM 803, various programs and data necessary for system operation are also stored. The CPU 801, ROM 802, and RAM 803 are connected to each other via a bus 804. An input/output (I/O) interface 805 is also connected to bus 804.
The following components are connected to the I/O interface 805: an input portion 806 including a keyboard, a mouse, and the like; an output section 807 including a signal such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage portion 808 including a hard disk and the like; and a communication section 809 including a network interface card such as a LAN card, a modem, or the like. The communication section 809 performs communication processing via a network such as the internet. A drive 810 is also connected to the I/O interface 805 as necessary. A removable medium 811 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 810 as necessary, so that the computer program read out therefrom is mounted on the storage section 808 as necessary.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units or modules described in the embodiments of the present invention may be implemented by software, or may be implemented by hardware. The described units or modules may also be provided in a processor, and may be described as: a processor includes a computation module, a translation module, and a determination module, where the names of these modules do not in some cases constitute a definition of the module itself, for example, the computation module may also be described as "a computation module that sequences the boundaries of the missile threat range into a series of point coordinates on a two-dimensional world map using a geodetic topic calculation problem correlation algorithm".
As another aspect, the present invention further provides a computer-readable storage medium, which may be the computer-readable storage medium included in the missile threat range determination apparatus on the two-dimensional world map according to the above embodiment; or it may be a computer-readable storage medium that exists separately and is not built into the electronic device. The computer readable storage medium stores one or more programs for use by one or more processors in performing a method for missile threat range determination on a two-dimensional world map as described herein.
The foregoing description is only exemplary of the preferred embodiments of the invention and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the invention. For example, the above features and the technical features (but not limited to) having similar functions disclosed in the present invention are mutually replaced to form the technical solution.
Claims (4)
1. A missile threat range determination method on a two-dimensional world map is characterized by comprising the following steps:
serializing a circle of the earth's surface into a series of point coordinates;
the circle on the surface of the earth takes a missile launching point as the center of a circle and the missile range as the radius;
the point coordinate is based on longitude as an abscissa and latitude as an ordinate;
respectively translating the series of point coordinates to the right and left by 360 degrees in the longitude direction and reserving the series of point coordinates before translation;
wherein the translation operation is performed in a two-dimensional coordinate system with longitude as abscissa and latitude as ordinate, and the range of the abscissa of the two-dimensional coordinate system is from negative infinity to positive infinity;
wherein the two-dimensional world map is drawn in the range of the abscissa of the coordinate system of [ -30,300] or [ -180,180];
judging whether the south pole and the north pole are in the missile range, and determining the missile threat range according to the judgment result, the series of point coordinates before translation and the series of point coordinates after translation;
using a geodetic theme correct problem correlation algorithm when serializing circles on the earth's surface into a series of point coordinates;
the geodetic measurement subject calculation problem correlation algorithm comprises the steps of directly carrying out integral operation on an ellipsoid of the earth on the basis of a differential equation of a geodetic line in a geodetic coordinate system, wherein an integral expression must be expanded by a series number;
solving the geodetic problem on a spherical surface on the basis of Bai Saier geodetic projection;
solving the problem of the geodetic theme by using a map projection theory, and adopting orthomorphic projection to a spherical surface, equidistant projection and orthomorphic projection to a plane;
the determination method further comprises the step of setting the area where the two-dimensional world map is located as a cropping area;
setting the area where the two-dimensional world map is located as a cropping zone, wherein the part of the series of point coordinates before translation and the part of the series of point coordinates after translation outside the two-dimensional world map are deleted;
a curve formed by a series of point coordinates reserved on the two-dimensional world map is the boundary of the threat range of the missile;
if the judgment result is that only the south pole is within the missile range, the boundary of the missile threat range is split by the south boundary of the two-dimensional world map, and the missile threat range is an area defined by the boundary of the missile threat range and the south boundary of the two-dimensional world map;
if the judgment result is that only the north pole is in the missile range, the boundary of the missile threat range is split by the north boundary of the two-dimensional world map, and the missile threat range is an area enclosed by the boundary of the missile threat range and the north boundary of the two-dimensional world map;
if the judgment result shows that the south pole and the north pole are both in the missile range, the missile threat range is an area defined by the boundary of the missile threat range, the east-west boundary and the south-north boundary of the two-dimensional world map;
and if the judgment result is that both the south pole and the north pole are not in the range of the missile, the threat range of the missile is a closed graphic area defined by a series of point coordinates on the two-dimensional world map.
2. A two-dimensional world map missile threat range determination apparatus for executing the two-dimensional world map missile threat range determination method according to claim 1, wherein the determination apparatus comprises:
the calculation module is used for serializing the circles on the earth surface into a series of point coordinates;
the circle on the surface of the earth takes a missile launching point as a circle center and takes a missile range as a radius;
the point coordinates are longitude as abscissa and latitude as ordinate;
the translation module is used for respectively translating the series of point coordinates to the right and the left by 360 degrees in the longitude direction and reserving the series of point coordinates before translation;
wherein the translation operation is performed in a two-dimensional coordinate system with longitude as abscissa and latitude as ordinate, and the range of the abscissa of the two-dimensional coordinate system is from negative infinity to positive infinity;
wherein the two-dimensional world map is drawn in a range with an abscissa of [ -30,300] or [ -180,180] in the coordinate system;
the judgment and determination module is used for judging whether the south pole and the north pole are in the missile range and determining the missile threat range according to the judgment result, the series of point coordinates before translation and the series of point coordinates after translation;
using a geodetic theme correct problem correlation algorithm when serializing circles on the earth's surface into a series of point coordinates;
the geodetic measurement subject calculation problem correlation algorithm comprises the steps of directly carrying out integral operation on an ellipsoid of the earth on the basis of a differential equation of a geodetic line in a geodetic coordinate system, wherein an integral expression must be expanded by a series number;
solving the geodetic problem on a spherical surface on the basis of Bai Saier geodetic projection;
solving the geodetic theme problem by using a map projection theory, and adopting orthomorphic projection to a spherical surface, equidistant projection and orthomorphic projection to a plane;
the determination method further comprises the step of setting the area where the two-dimensional world map is located as a cropping area;
setting the area where the two-dimensional world map is located as a cropping area, wherein the part of the series of point coordinates before translation and the part of the series of point coordinates after translation outside the two-dimensional world map are deleted;
wherein a curve formed by a series of point coordinates retained on the two-dimensional world map is the boundary of the missile threat range;
if the judgment result is that only the south pole is in the missile range, the boundary of the missile threat range is split by the south boundary of the two-dimensional world map, and the missile threat range is an area enclosed by the boundary of the missile threat range and the south boundary of the two-dimensional world map;
if the judgment result is that only the north pole is in the missile range, the boundary of the missile threat range is split by the north boundary of the two-dimensional world map, and the missile threat range is an area enclosed by the boundary of the missile threat range and the north boundary of the two-dimensional world map;
if the judgment result shows that the south pole and the north pole are both in the missile range, the missile threat range is an area defined by the boundary of the missile threat range, the east-west boundary and the south-north boundary of the two-dimensional world map;
and if the judgment result is that both the south pole and the north pole are not in the range of the missile, the threat range of the missile is a closed graphic area defined by a series of point coordinates on the two-dimensional world map.
3. An electronic device comprising a memory and a processor, the memory having stored thereon a computer program, wherein the processor, when executing the computer program, implements the method of claim 1.
4. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the method of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111601775.0A CN114299142B (en) | 2021-12-24 | 2021-12-24 | Missile threat range determining method and device on two-dimensional world map |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111601775.0A CN114299142B (en) | 2021-12-24 | 2021-12-24 | Missile threat range determining method and device on two-dimensional world map |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114299142A CN114299142A (en) | 2022-04-08 |
| CN114299142B true CN114299142B (en) | 2022-11-04 |
Family
ID=80969468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111601775.0A Active CN114299142B (en) | 2021-12-24 | 2021-12-24 | Missile threat range determining method and device on two-dimensional world map |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114299142B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108829904A (en) * | 2018-03-09 | 2018-11-16 | 中国人民解放军海军大连舰艇学院 | The calculation method in enemy plane and missile threat area in a kind of surface ship air-defense |
| CN110704057A (en) * | 2019-10-09 | 2020-01-17 | 腾讯科技（深圳）有限公司 | Service processing method based on map service and related device |
| CN112084287A (en) * | 2020-09-14 | 2020-12-15 | 广东弓叶科技有限公司 | Electronic map generation method and device and electronic map |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104699922B (en) * | 2015-04-01 | 2017-11-28 | 东北电力大学 | The design method of turbine condenser cooling water secondary filter and its disc screen frame |
| CN110297261B (en) * | 2019-07-08 | 2022-08-30 | 卡斯柯信号有限公司 | Satellite navigation simulation system and method for simulating train running track |
| CN112859130B (en) * | 2021-01-14 | 2022-08-16 | 山东瑞联博地理信息有限公司 | High-precision electronic map position matching method for field navigation patrol |
| CN112991535B (en) * | 2021-04-19 | 2021-07-27 | 中国人民解放军国防科技大学 | Three-dimensional space situation representation method and device of height information enhanced ink cartoo map |
-
2021
- 2021-12-24 CN CN202111601775.0A patent/CN114299142B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108829904A (en) * | 2018-03-09 | 2018-11-16 | 中国人民解放军海军大连舰艇学院 | The calculation method in enemy plane and missile threat area in a kind of surface ship air-defense |
| CN110704057A (en) * | 2019-10-09 | 2020-01-17 | 腾讯科技（深圳）有限公司 | Service processing method based on map service and related device |
| CN112084287A (en) * | 2020-09-14 | 2020-12-15 | 广东弓叶科技有限公司 | Electronic map generation method and device and electronic map |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114299142A (en) | 2022-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109300190B (en) | Three-dimensional data processing method, device, equipment and storage medium | |
| US11423061B2 (en) | Tile server | |
| EP3561796A1 (en) | Tiled map generating method and apparatus in virtual map, and tiled map updating method and apparatus in virtual map | |
| CN112233240B (en) | Three-dimensional vector data slicing method and device of three-dimensional vector map and electronic equipment | |
| US8564596B2 (en) | Techniques for density mapping | |
| CN112800915B (en) | Building change detection method, device, electronic equipment and storage medium | |
| EP3828720A2 (en) | Method and apparatus for merging data of building blocks, device and storage medium | |
| CN111090716B (en) | Vector tile data processing method, device, equipment and storage medium | |
| US20210207975A1 (en) | Map coordinate processing method, map coordinate processing device, electronic device, and storage medium | |
| CN108572999B (en) | Method and device for searching AOI contour of interest surface | |
| CN112927336A (en) | Shadow processing method and device for three-dimensional building for road information display | |
| CN111523061B (en) | Method and apparatus for generating interest plane | |
| CN114299142B (en) | Missile threat range determining method and device on two-dimensional world map | |
| CN110782391B (en) | Image processing method and device in driving simulation scene and storage medium | |
| CN113761618A (en) | 3D simulation road network automation construction method and system based on real data | |
| CN111870953A (en) | Height map generation method, device, equipment and storage medium | |
| WO2023123583A1 (en) | Fusion method, apparatus and system suitable for geological data and geographic information data | |
| CN112907741B (en) | Terrain scene generation method and device, electronic equipment and storage medium | |
| CN113379913B (en) | Underground space generation method and device and computer equipment | |
| US20230131901A1 (en) | Method for processing map data, and electronic device | |
| CN116483936A (en) | Mass GIS vector data loading method and system based on dynamic tile technology | |
| CN115422313A (en) | Method and device for obtaining optimal data set of cloud tile data | |
| CN113674435A (en) | Image processing method, electronic map display method and device and electronic equipment | |
| CN113220813A (en) | Electronic map area generation method and device, electronic equipment and storage medium | |
| CN118031984A (en) | Method, device, equipment and storage medium for determining initial value of vehicle positioning |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |