CN109062416A - The state transition method and device of map - Google Patents
The state transition method and device of map Download PDFInfo
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- CN109062416A CN109062416A CN201811007016.XA CN201811007016A CN109062416A CN 109062416 A CN109062416 A CN 109062416A CN 201811007016 A CN201811007016 A CN 201811007016A CN 109062416 A CN109062416 A CN 109062416A
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- 230000003993 interaction Effects 0.000 description 10
- 230000006870 function Effects 0.000 description 9
- 238000012545 processing Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/017—Gesture based interaction, e.g. based on a set of recognized hand gestures
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0484—Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/06—Topological mapping of higher dimensional structures onto lower dimensional surfaces
- G06T3/073—Transforming surfaces of revolution to planar images, e.g. cylindrical surfaces to planar images
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Abstract
The invention discloses a kind of state transition method of map and devices.Wherein, this method comprises: showing map image in current interface；Detecting state switching signal, wherein display state of the state switching signal for map image switches over, and display state includes: spherical surface state or flat state；Map image after detecting state switching signal, after display switching, wherein the map image after switching is mapped by the coordinate value of pixel each in map image.The technical problem that the state transition method complexity that the present invention solves map in the prior art is high, transfer efficiency is low.
Description
Technical field
The present invention relates to teaching application fields, in particular to the state transition method and device of a kind of map.
Background technique
In real life, the earth is round, but the map used in real life is plane.It is answered in teaching
With in field, in order to be the plane map how being transformed into life to student's Dynamic Display earth, the shape of to map is needed
State is converted.The conversion process of traditional sphere map and plane map is usually in some period by calculating ball in real time
Vertex position of the face in 3D (three-dimensional, full name 3Dimensions) space is realized.But the complexity of this mode
Height causes entire transfer efficiency lower, needs to wait the long period just the map after capable of viewing conversion.
For the low problem of the state transition method complexity height of map in the prior art, transfer efficiency, not yet mention at present
Effective solution scheme out.
Summary of the invention
The embodiment of the invention provides a kind of state transition method of map and devices, at least to solve in the prior art
The technical problem that the state transition method complexity of figure is high, transfer efficiency is low.
According to an aspect of an embodiment of the present invention, a kind of state transition method of map image is provided, comprising: working as
Map image is shown in front interface；Detecting state switching signal, wherein state switching signal is used for the display shape of to map image
State switches over, and display state includes: spherical surface state or flat state；After detecting state switching signal, display switching
Map image afterwards, wherein the map image after switching is reflected by the coordinate value of pixel each in map image
It penetrates.
Further, detecting state switching signal includes following one or more: the state that detection programmable button generates is cut
Change signal；Detect the state switching signal that default gesture operation generates.
Further, it includes following one or more for presetting gesture operation: scaling gesture clicks gesture, preset direction
Slide.
According to another aspect of an embodiment of the present invention, a kind of state transition method of map image is additionally provided, comprising: obtain
Take map image；Detecting state switching signal, wherein display state of the state switching signal for map image is cut
It changes, display state includes: spherical surface state or flat state；After detecting state switching signal, obtain every in map image
The coordinate value of a pixel；The coordinate value of each pixel is mapped in map image, the map image after being switched.
Further, the coordinate value of each pixel is mapped in map image, the map image after being switched
It include: the coordinate mapping relations for obtaining map image, wherein coordinate mapping relations are for characterizing the same pixel in flat
Relationship between coordinate value in the map image of surface state and the coordinate value in the map image in spherical surface state；Based on seat
The coordinate value of each pixel is mapped in mark mapping relations to map image, each picture in the map image after being switched
The coordinate value of vegetarian refreshments；Map image based on the coordinate value of each pixel in the map image after switching, after generating switching.
Further, coordinate mapping relations include: the first mapping relations and the second mapping relations, wherein the second mapping is closed
It is for characterizing coordinate value of the same pixel in the map image in flat state and pre-set dimension and being in spherical surface
The relationship between coordinate value in the map image of state, the first mapping relations are for characterizing the same pixel in plane
The pass between coordinate value in coordinate value in the map image of state and pre-set dimension and the map image in flat state
System.
Further, obtaining the first mapping relations includes: the radius for obtaining the map image in spherical surface state；Based on half
The coordinate value of diameter, each pixel in the map image in flat state and pre-set dimension and the map in spherical surface state
Coordinate value in image obtains the first mapping relations.
Further, the first mapping relations include: each pixel in the Map in flat state and pre-set dimension
Abscissa as in is the product of the radian value of radius longitude corresponding with each pixel；Each pixel is in planar
Ordinate in the map image of state and pre-set dimension is the product of the radian value of radius latitude corresponding with each pixel；Its
In, key player on a team's functional value of the radian value of the corresponding latitude of each pixel is each pixel in the Map for being in spherical surface state
The ratio of ordinate and radius as in, the sine function of the radian value of the corresponding longitude of each pixel are each pixel
The ratio of abscissa and the first product in the map image in spherical surface state, the first product are that each pixel is corresponding
The cosine function value of the radian value of latitude and the product of radius.
Further, obtaining the second mapping relations includes: to obtain the dimension scale of the map image in flat state；Base
In the dimension scale of the map image in flat state, pre-set dimension is obtained；Based on pre-set dimension and in flat state
The coordinate value of the dimension scale of map image and each pixel in the map image in flat state and pre-set dimension
Coordinate value in the map image in flat state, obtains the second mapping relations.
Further, the second mapping relations include: each pixel in the Map in flat state and pre-set dimension
Abscissa as in is the difference of the second product and dimension scale, and the second product is default wide and each pixel in pre-set dimension
The product of abscissa of the point in the map image in flat state, default width are multiplying for the first preset value and dimension scale
Product；Ordinate of each pixel in the map image in flat state and pre-set dimension is that third product and second are default
The difference of value, third product are the abscissa with the first preset value and each pixel in the map image in flat state
Product.
Further, in the case where the display state of map image is spherical surface state, over the ground based on coordinate mapping relations
The coordinate value of each pixel is mapped in figure image, the coordinate value packet of each pixel in the map image after being switched
Include: the coordinate value based on each pixel in the first mapping relations to map image is mapped, obtain in flat state and
The coordinate value of each pixel in the map image of pre-set dimension；Based on the second mapping relations in flat state and default ruler
The coordinate value of each pixel is mapped in very little map image, and each pixel is first in the map image after being switched
Beginning coordinate value.
Further, in the case where the display state of map image is flat state, over the ground based on coordinate mapping relations
The coordinate value of each pixel is mapped in figure image, the coordinate value packet of each pixel in the map image after being switched
Include: the coordinate value based on each pixel in the second mapping relations to map image is mapped, obtain in flat state and
The coordinate value of each pixel in the map image of pre-set dimension；Based on the first mapping relations in flat state and default ruler
The coordinate value of each pixel is mapped in very little map image, and each pixel is first in the map image after being switched
Beginning coordinate value.
According to another aspect of an embodiment of the present invention, a kind of state converter of map image is additionally provided, comprising: the
One display module, for showing map image in current interface；Detection module is used for detecting state switching signal, wherein shape
Display state of the state switching signal for map image switches over, and display state includes: spherical surface state or flat state；The
Two display modules, for the map image after detecting state switching signal, after display switching, wherein the ground after switching
Figure image is mapped by the coordinate value of pixel each in map image.
Further, detecting state switching signal includes following one or more: the state that detection programmable button generates is cut
Change signal；Detect the state switching signal that default gesture operation generates.
Further, it includes following one or more for presetting gesture operation: scaling gesture clicks gesture, preset direction
Slide.
According to another aspect of an embodiment of the present invention, a kind of state converter of map image is additionally provided, comprising: the
One obtains module, for obtaining map image；Detection module is used for detecting state switching signal, wherein state switching signal is used
It is switched in the display state of to map image, display state includes: spherical surface state or flat state；Second obtains module,
For obtaining the coordinate value of each pixel in map image after detecting state switching signal；Mapping block, for pair
The coordinate value of each pixel is mapped in map image, the map image after being switched.
Further, mapping block includes: the first acquisition submodule, for obtaining the coordinate mapping relations of map image,
Wherein, coordinate mapping relations are used to characterize coordinate value of the same pixel in the map image in flat state and are in
The relationship between coordinate value in the map image of spherical surface state；First mapping submodule, for being based on coordinate mapping relations pair
The coordinate value of each pixel is mapped in map image, the coordinate of each pixel in the map image after being switched
Value；Submodule is generated, the Map for the coordinate value based on each pixel in the map image after switching, after generating switching
Picture.
Further, coordinate mapping relations include: the first mapping relations and the second mapping relations, wherein the second mapping is closed
It is for characterizing coordinate value of the same pixel in the map image in flat state and pre-set dimension and being in spherical surface
The relationship between coordinate value in the map image of state, the first mapping relations are for characterizing the same pixel in plane
The pass between coordinate value in coordinate value in the map image of state and pre-set dimension and the map image in flat state
System.
Further, the first acquisition submodule includes: first acquisition unit, for obtaining the Map for being in spherical surface state
The radius of picture；First processing units, for based on radius, each pixel in flat state and the Map of pre-set dimension
Coordinate value in coordinate value as in and the map image in spherical surface state, obtains the first mapping relations.
Further, the first mapping relations include: each pixel in the Map in flat state and pre-set dimension
Abscissa as in is the product of the radian value of radius longitude corresponding with each pixel；Each pixel is in planar
Ordinate in the map image of state and pre-set dimension is the product of the radian value of radius latitude corresponding with each pixel；Its
In, key player on a team's functional value of the radian value of the corresponding latitude of each pixel is each pixel in the Map for being in spherical surface state
The ratio of ordinate and radius as in, the sine function of the radian value of the corresponding longitude of each pixel are each pixel
The ratio of abscissa and the first product in the map image in spherical surface state, the first product are that each pixel is corresponding
The cosine function value of the radian value of latitude and the product of radius.
Further, the first acquisition submodule includes: second acquisition unit, for obtaining the Map for being in flat state
The dimension scale of picture；The second processing unit obtains default ruler for the dimension scale based on the map image in flat state
It is very little；Third processing unit, dimension scale and each picture for the map image based on pre-set dimension and in flat state
Vegetarian refreshments is in the coordinate value in the map image in flat state and pre-set dimension and the map image in flat state
Coordinate value obtains the second mapping relations.
Further, the second mapping relations include: each pixel in the Map in flat state and pre-set dimension
Abscissa as in is the difference of the second product and dimension scale, and the second product is default wide and each pixel in pre-set dimension
The product of abscissa of the point in the map image in flat state, default width are multiplying for the first preset value and dimension scale
Product；Ordinate of each pixel in the map image in flat state and pre-set dimension is that third product and second are default
The difference of value, third product are the abscissa with the first preset value and each pixel in the map image in flat state
Product.
Further, in the case where the display state of map image is spherical surface state, the first mapping submodule includes: the
One map unit is mapped for the coordinate value based on each pixel in the first mapping relations to map image, is obtained everywhere
The coordinate value of each pixel in flat state and the map image of pre-set dimension；Second map unit, for being based on second
Mapping relations map the coordinate value of each pixel in the map image in flat state and pre-set dimension, are cut
The initial coordinate values of each pixel in map image after changing.
Further, in the case where the display state of map image is flat state, the first mapping submodule includes: the
Three map units are mapped for the coordinate value based on each pixel in the second mapping relations to map image, are obtained everywhere
The coordinate value of each pixel in flat state and the map image of pre-set dimension；4th map unit, for being based on first
Mapping relations map the coordinate value of each pixel in the map image in flat state and pre-set dimension, are cut
The initial coordinate values of each pixel in map image after changing.
According to another aspect of an embodiment of the present invention, a kind of storage medium is additionally provided, storage medium includes the journey of storage
Sequence, wherein equipment where control storage medium executes the state transition method of above-mentioned map image in program operation.
According to another aspect of an embodiment of the present invention, a kind of processor is additionally provided, processor is used to run program,
In, program executes the state transition method of above-mentioned map image when running.
It in embodiments of the present invention, can be after real-time detection to state switching signal, by every in map image
The coordinate value of a pixel is mapped, and the map image after being switched is mapped by coordinate compared with prior art
The conversion for realizing spherical surface and plate, without being realized by calculating the vertex position in 3d space, that is, without 3D phase
The instruction of pass can be realized, to reach reduction User Exploitation Capability Requirement, reduce the complexity of state transition method, be promoted
The technical effect of the treatment effeciency of state transition method, and then solve the state transition method complexity of map in the prior art
High, transfer efficiency low technical problem.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of flow chart of the state transition method of map image according to an embodiment of the present invention；
Fig. 2 is the flow chart of the state transition method of another map image according to an embodiment of the present invention；
Fig. 3 is the figure of just trading when a kind of optional spherical radius according to an embodiment of the present invention is intended to infinite；
Fig. 4 is the figure of just trading after a kind of optional spherical radius according to an embodiment of the present invention reduces；
Fig. 5 is the figure of just trading that spherical surface is completely covered in a kind of optional map image graphic according to an embodiment of the present invention；
Fig. 6 is a kind of optional spherical coordinate calculation of longitude & latitude schematic diagram according to an embodiment of the present invention；
Fig. 7 is a kind of schematic diagram of the initial coordinate system of optional map image according to an embodiment of the present invention；
Fig. 8 is the schematic diagram of coordinate system after a kind of optional map image graphic mapping according to an embodiment of the present invention；
Fig. 9 is a kind of schematic diagram of the state converter of map image according to an embodiment of the present invention；And
Figure 10 is the schematic diagram of the state converter of another map image according to an embodiment of the present invention.
Specific embodiment
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment 1
According to embodiments of the present invention, a kind of embodiment of the state transition method of map image is provided, needs to illustrate
It is that step shown in the flowchart of the accompanying drawings can execute in a computer system such as a set of computer executable instructions,
Also, although logical order is shown in flow charts, and it in some cases, can be to be different from sequence execution herein
Shown or described step.
Fig. 1 is a kind of flow chart of the state transition method of map image according to an embodiment of the present invention, as shown in Figure 1,
This method comprises the following steps:
Step S102, shows map image in current interface.
Specifically, in teaching application scenarios, in order to show how the earth and plane map image are converted to classmate,
It can need to carry out the map image picture of state conversion in intelligent interaction plate first, the display state of the map image can
To be spherical surface state either flat state.
Step S104, detecting state switching signal, wherein state switching signal for map image display state into
Row switching, display state includes: spherical surface state or flat state.
Optionally, detecting state switching signal includes following one or more: the state switching that detection programmable button generates
Signal；Detect the state switching signal that default gesture operation generates.
Specifically, in teaching application scenarios, the display of to map image is chosen whether as needed in order to facilitate teacher
State switches over, and a programmable button can be shown in intelligent interaction plate, and teacher can be generated by clicking the key
The state switching signal that the current display state of to map image switches over.
Further, it includes following one or more for presetting gesture operation: scaling gesture clicks gesture, preset direction
Slide.
Specifically, in teaching application scenarios, in order to facilitate operation of teacher, a gesture operation, example can be preset
Such as, it can be set to operate by amplifying gesture and realize the switching of spherical surface to plane, realize plane to ball by reducing gesture operation
The switching in face；The switching of spherical surface and plane can be realized by double-clicking the earth；Or it can be grasped by the sliding slided to the right
Make to realize the switching of spherical surface to plane, realizes the switching of plane to spherical surface by carrying out gesture operation again.When teacher's needs pair
When the display state of map image switches over, can by carrying out corresponding gesture operation on intelligent interaction plate, thus
Generate the switching signal that the current display state of to map image switches over.
Step S106, the map image after detecting state switching signal, after display switching, wherein after switching
Map image is mapped by the coordinate value of pixel each in map image.
It specifically, can be in order to realize that the relevant knowledge of different 3D can be achieved with the animation of spherical surface and plane conversion
It is calculated by the coordinate value of the pixel in algorithm to map image to reach the conversion process of simulation spherical surface and plane.Example
Such as, the mapping relations that the coordinate value of the same pixel between spherical surface and plane can be pre-established, by will currently show shape
The coordinate value of each pixel is mapped as the coordinate value under another display state in map image under state, further according to right
The coordinate value of pixel is answered to generate the map image after corresponding display state switching.And switching is shown in intelligent interaction plate
Map image afterwards, by show former map image and and switching after map image between animation effect, obtain spherical surface and
The animation of plane conversion.
In a kind of optional scheme, in teaching application scenarios, taught in teacher by intelligent interaction plate
In the process, the map image of a certain display state can be shown, in intelligent interaction plate in order to show spherical surface peace to classmate
The transition animation in face, teacher can be by clicking the programmable button shown on intelligent interaction plate or on intelligent interaction plate
It carries out default gesture operation and realizes that map image current display state is converted, so that intelligent interaction plate is able to detect that
Corresponding state switching signal, may further pass through the coordinate value of each pixel in pre-set algorithm to map image
Coordinate mapping is carried out, the coordinate value of each pixel under another display state is obtained, thus the map image after being switched,
And shown by intelligent interaction plate, complete entire stateful switchover process.
Using the above embodiment of the present invention, to map image can be passed through after real-time detection to state switching signal
In the coordinate value of each pixel mapped, the map image after being switched is mapped by coordinate compared with prior art
The conversion that spherical surface and plate can be realized, without being realized by calculating the vertex position in 3d space, that is, without
The relevant instruction of 3D can be realized, to reach reduction User Exploitation Capability Requirement, reduce the complexity of state transition method,
The technical effect of the treatment effeciency of state transition method is promoted, and then the state transition method for solving map in the prior art is multiple
Miscellaneous degree height, transfer efficiency low technical problem.
Embodiment 2
According to embodiments of the present invention, a kind of embodiment of the state transition method of map image is additionally provided, needs to illustrate
, step shown in the flowchart of the accompanying drawings can hold in a computer system such as a set of computer executable instructions
Row, although also, logical order is shown in flow charts, and it in some cases, can be to be different from sequence herein
Execute shown or described step.
Fig. 2 is the flow chart of the state transition method of another map image according to an embodiment of the present invention, such as Fig. 2 institute
Show, this method comprises the following steps:
According to another aspect of an embodiment of the present invention, a kind of state transition method of map image is additionally provided, comprising:
Step S202 obtains map image.
Step S204, detecting state switching signal, wherein state switching signal for map image display state into
Row switching, display state includes: spherical surface state or flat state.
Step S206 obtains the coordinate value of each pixel in map image after detecting state switching signal.
Step S208, the coordinate value of each pixel is mapped in map image, the map image after being switched.
Optionally, step S208, the coordinate value of each pixel is mapped in map image, the ground after being switched
Figure image includes: the coordinate mapping relations for obtaining map image, wherein coordinate mapping relations exist for characterizing the same pixel
Relationship between coordinate value in map image in flat state and the coordinate value in the map image in spherical surface state；
Coordinate value based on each pixel in coordinate mapping relations to map image is mapped, in the map image after being switched
The coordinate value of each pixel；Map based on the coordinate value of each pixel in the map image after switching, after generating switching
Image.
Further, coordinate mapping relations may include: the first mapping relations and the second mapping relations, wherein second reflects
Relationship is penetrated for characterizing coordinate value of the same pixel in the map image in flat state and pre-set dimension and being in
The relationship between coordinate value in the map image of spherical surface state, the first mapping relations are being in for characterizing the same pixel
Between coordinate value in flat state and the coordinate value in the map image of pre-set dimension and the map image in flat state
Relationship.
Specifically, in teaching application scenarios, in order to avoid various sizes of map image picture, go out in mapping process
Existing deviation or mistake, the problem of leading to not to realize the conversion of spherical surface and plane, therefore can be for the Map of arbitrary size
As picture maps to pre-set dimension, for example, mapping to width is 2*whRatio, in a height of 2 rectangular area, in rectangular area
The coordinate value range of pixel is as follows: x1:[-whRatio, whRatio], y1:[-1,1], wherein whRadio is original map
The ratio of width to height of image graphic.
Optionally, obtaining the first mapping relations includes: the radius for obtaining the map image in spherical surface state；Based on half
The coordinate value of diameter, each pixel in the map image in flat state and pre-set dimension and the map in spherical surface state
Coordinate value in image obtains the first mapping relations.
It should be noted that teacher can be by the map in flat state and pre-set dimension in teaching application scenarios
Image is converted to the map image in spherical surface state, as shown in figure 3, the 1 of map picture, 3 two side can be along spherical surface
Weft mapping, 2,4 two sides can be mapped along the warp of spherical surface.When spherical radius is intended to just infinite, picture is orthogonal
The presentation effect of projection view is approximately plane.As shown in figure 4, when spherical radius R gradually becomes smaller, in rectangular projection view,
The weft of spherical surface keeps horizontal, and warp bends.Meanwhile the longitude and latitude region of map picture covering gradually increases.Such as Fig. 5 institute
Show, when the value of spherical radius R meet π * R=map picture it is high when, spherical surface is completely covered in map picture, is mapped to a circle
Ball.At this point, the side 1 of map picture is mapped to the arctic point of spherical surface, the side 3 of map image picture is mapped to the Geophysical South Pole of spherical surface,
The side 2,4 of map picture is mapped to same warp.
Specifically, in teaching application scenarios, when spherical surface is completely covered in map image, π * R=2, therefore the minimum value of R
For 2/ π.The value range of R be [2/ π, ∞).For convenience of calculating, take param=1/R, thus the value range of param be (0,
π/2].Above-mentioned radius can be set in corresponding value range by teacher according to field research needs.
Further, the first mapping relations include: each pixel in the Map in flat state and pre-set dimension
Abscissa as in is the product of the radian value of radius longitude corresponding with each pixel；Each pixel is in planar
Ordinate in the map image of state and pre-set dimension is the product of the radian value of radius latitude corresponding with each pixel；Its
In, key player on a team's functional value of the radian value of the corresponding latitude of each pixel is each pixel in the Map for being in spherical surface state
The ratio of ordinate and radius as in, the sine function of the radian value of the corresponding longitude of each pixel are each pixel
The ratio of abscissa and the first product in the map image in spherical surface state, the first product are that each pixel is corresponding
The cosine function value of the radian value of latitude and the product of radius.
Specifically, the first mapping relations: x1=α R, y1=β R are obtained by following formula, whereinR is radius, and β is for characterizing the corresponding latitude of each pixel
Radian value, α is used to characterize the radian value of the corresponding longitude of each pixel, and (x1, y1) is that each pixel is being in plane
Coordinate value in the map image of state and pre-set dimension, (x2, y2) are each pixel in the Map for being in spherical surface state
Coordinate value as in.
As shown in fig. 6, can establish the coordinate (x1, y1) of the map image arbitrary point in flat state and pre-set dimension
With the transformation equation of the coordinate (x2, y2) of spherical surface arbitrary point rectangular projection, namely the first mapping relations that foundation is as above.Spherical surface is appointed
It anticipates point (x2, y2, z2), is projected as (x2, y2) on x/y plane.It is possible to further the radian of the corresponding latitude of determination
Value isThe radian value of corresponding longitude isDue to umbilical point longitude
Corresponding arc length is equal to the absolute value of plane map image x coordinate after expansion, and the corresponding arc length of latitude is equal to plane earth after expansion
The absolute value of figure image y-coordinate.Therefore, map image corresponding points coordinate (x1, y1) in flat state and pre-set dimension
Coordinate value x1=α R, y1=β R.
Optionally, obtaining the second mapping relations includes: to obtain the dimension scale of the map image in flat state；It is based on
Map image dimension scale in flat state, obtains pre-set dimension；Based on pre-set dimension and in the map of flat state
The coordinate value and place of the dimension scale of image and each pixel in the map image in flat state and pre-set dimension
Coordinate value in the map image of flat state obtains the second mapping relations.
Specifically, above-mentioned dimension scale can be the ratio of width to height whRadio of original map image graphic, and above-mentioned is default
Size may include: default wide and default length, and presetting width is 2 × whRadio, presets a height of 2.It as shown in Figure 7 and Figure 8, can be with
Establish under map image Point Coordinates (x1, y1) and initial coordinate in flat state and pre-set dimension (namely in flat
In the map image of surface state) transformation equation of coordinate (x0, y0), namely establish the second mapping relations as above.
Further, the second mapping relations include: each pixel in the Map in flat state and pre-set dimension
Abscissa as in is the difference of the second product and dimension scale, and the second product is default wide and each pixel in pre-set dimension
The product of abscissa of the point in the map image in flat state, default width are multiplying for the first preset value and dimension scale
Product；Ordinate of each pixel in the map image in flat state and pre-set dimension is that third product and second are default
The difference of value, third product are the abscissa with the first preset value and each pixel in the map image in flat state
Product.
Specifically, the second mapping relations: x1=(2x0-1) × whRadio, y1=2y0-1 are obtained by following formula,
In, (x0, y0) is coordinate value of each pixel in the map image in flat state.Formula x1=can be passed through
(2x0-1) × whRadio, y1=2x1-1 maps coordinates to width for 2 × whRadio, in a height of 2 predeterminable area.The seat
Any point (x0, y0) in mark system represents point actual coordinate and the wide high ratio of picture, for example, the point (x0, y0) is right
The actual coordinate answered is (x0*width, y0*height), and wherein width is the developed width of map image picture, and height is
The actual height of map image picture.
It should be noted that in the case that the display state of map image is different, the mapping used in coordinate mapping process
Relationship can back mapping each other.
Further, in the case where the display state of map image is spherical surface state, over the ground based on coordinate mapping relations
The coordinate value of each pixel is mapped in figure image, the coordinate value packet of each pixel in the map image after being switched
Include: the coordinate value based on each pixel in the first mapping relations to map image is mapped, obtain in flat state and
The coordinate value of each pixel in the map image of pre-set dimension；Based on the second mapping relations in flat state and default ruler
The coordinate value of each pixel is mapped in very little map image, and each pixel is first in the map image after being switched
Beginning coordinate value.
In a kind of optional scheme, in teaching application scenarios, spherical surface state is in the map image currently shown
In the case where, after determining that teacher needs to carry out display state conversion, each pixel is orthogonal in available map image
The coordinate (x2, y2) of projection, and by the first above-mentioned mapping relations, namely pass through formula x1=α R, y1=β R,Respective pixel point is obtained in flat state and pre-set dimension
Map image in coordinate (x1, y1), further by the second above-mentioned mapping relations, namely pass through formula x0=(x1/
WhRadio+1)/2, y0=(y1+1)/2 obtains the initial coordinate of respective pixel point in the map image in flat state
(x0, y0), to obtain the final map image in flat state.
Further, in the case where the display state of map image is flat state, over the ground based on coordinate mapping relations
The coordinate value of each pixel is mapped in figure image, the coordinate value packet of each pixel in the map image after being switched
Include: the coordinate value based on each pixel in the second mapping relations to map image is mapped, obtain in flat state and
The coordinate value of each pixel in the map image of pre-set dimension；Based on the first mapping relations in flat state and default ruler
The coordinate value of each pixel is mapped in very little map image, and each pixel is first in the map image after being switched
Beginning coordinate value.
In a kind of optional scheme, in teaching application scenarios, flat state is in the map image currently shown
In the case where, it is initial in the available map image currently shown after determining that teacher needs to carry out display state conversion
Under coordinate system, the initial coordinate (x0, y0) of each pixel, and pass through above-mentioned the second mapping relations namely formula x1=
(2x0-1) × whRadio and y1=2x1-1, available respective pixel point is in the map in flat state and pre-set dimension
Coordinate (x1, y1) in image further by the firstth above-mentioned mapping relations, namely passes through formula x1=α R, y1=β R,Inverse formula, obtain in the map image under spherical surface state
Coordinate (x2, y2), to obtain the final map image in spherical surface state.
Embodiment 3
According to embodiments of the present invention, a kind of embodiment of the state converter of map image is additionally provided.
Fig. 9 is a kind of schematic diagram of the state converter of map image according to an embodiment of the present invention, as shown in figure 9,
The device includes: the first display module 92, detection module 94 and the second display module 96.
Wherein, the first display module 92 in current interface for showing map image；Detection module 94 is for detecting shape
State switching signal, wherein display state of the state switching signal for map image switches over, and display state includes: ball
Surface state or flat state；Second display module 96 is used for after detecting state switching signal, the map after display switching
Image, wherein the map image after switching is mapped by the coordinate value of pixel each in map image.
Optionally, detecting state switching signal includes following one or more: the state switching that detection programmable button generates
Signal；Detect the state switching signal that default gesture operation generates.
Optionally, it includes following one or more for presetting gesture operation: scaling gesture clicks gesture, the cunning of preset direction
Dynamic operation.
Embodiment 4
According to embodiments of the present invention, a kind of embodiment of the state converter of map image is additionally provided.
Figure 10 is the schematic diagram of the state converter of another map image according to an embodiment of the present invention, such as Figure 10 institute
Show, which includes: the first acquisition module 102, the acquisition module 106 of detection module 104, second and mapping block 108.
Wherein, first module is obtained, for obtaining map image；Detection module 104 is used for detecting state switching signal,
In, display state of the state switching signal for map image switches over, and display state includes: spherical surface state or planar
State；Second, which obtains module 106, is used for after detecting state switching signal, obtains the coordinate of each pixel in map image
Value；Coordinate value of the mapping block 108 for each pixel in map image is mapped, the Map after being switched
Picture.
Optionally, mapping block includes: the first acquisition submodule, for obtaining the coordinate mapping relations of map image,
In, coordinate mapping relations are used to characterize coordinate value of the same pixel in the map image in flat state and are in ball
The relationship between coordinate value in the map image of surface state；First mapping submodule, for being based on coordinate mapping relations over the ground
The coordinate value of each pixel is mapped in figure image, the coordinate value of each pixel in the map image after being switched；
Submodule is generated, the map image for the coordinate value based on each pixel in the map image after switching, after generating switching.
Further, coordinate mapping relations include: the first mapping relations and the second mapping relations, wherein the second mapping is closed
It is for characterizing coordinate value of the same pixel in the map image in flat state and pre-set dimension and being in spherical surface
The relationship between coordinate value in the map image of state, the first mapping relations are for characterizing the same pixel in plane
The pass between coordinate value in coordinate value in the map image of state and pre-set dimension and the map image in flat state
System.
Further, the first acquisition submodule includes: first acquisition unit, for obtaining the Map for being in spherical surface state
The radius of picture；First processing units, for based on radius, each pixel in flat state and the Map of pre-set dimension
Coordinate value in coordinate value as in and the map image in spherical surface state, obtains the first mapping relations.
Further, the first mapping relations include: each pixel in the Map in flat state and pre-set dimension
Abscissa as in is the product of the radian value of radius longitude corresponding with each pixel；Each pixel is in planar
Ordinate in the map image of state and pre-set dimension is the product of the radian value of radius latitude corresponding with each pixel；Its
In, key player on a team's functional value of the radian value of the corresponding latitude of each pixel is each pixel in the Map for being in spherical surface state
The ratio of ordinate and radius as in, the sine function of the radian value of the corresponding longitude of each pixel are each pixel
The ratio of abscissa and the first product in the map image in spherical surface state, the first product are that each pixel is corresponding
The cosine function value of the radian value of latitude and the product of radius.
Further, first processing units are also used to obtain the first mapping relations: x1=α R, y1=β by following formula
R, whereinR is radius, and β is corresponding for characterizing each pixel
Latitude radian value, α is used to characterize the radian value of the corresponding longitude of each pixel, and (x1, y1) is that each pixel is being located
Coordinate value in flat state and the map image of pre-set dimension, (x2, y2) are the ground that each pixel is in spherical surface state
Coordinate value in figure image.
Optionally, the first acquisition submodule includes: second acquisition unit, for obtaining the map image for being in flat state
Dimension scale；The second processing unit obtains default ruler for the dimension scale based on the map image in flat state
It is very little；Third processing unit, dimension scale and each picture for the map image based on pre-set dimension and in flat state
Vegetarian refreshments is in the coordinate value in the map image in flat state and pre-set dimension and the map image in flat state
Coordinate value obtains the second mapping relations.
Further, the second mapping relations include: each pixel in the Map in flat state and pre-set dimension
Abscissa as in is the difference of the second product and dimension scale, and the second product is default wide and each pixel in pre-set dimension
The product of abscissa of the point in the map image in flat state, default width are multiplying for the first preset value and dimension scale
Product；Ordinate of each pixel in the map image in flat state and pre-set dimension is that third product and second are default
The difference of value, third product are the abscissa with the first preset value and each pixel in the map image in flat state
Product.
Further, third processing unit is also used to obtain the second mapping relations by following formula: x1=(2x0-1) ×
WhRadio, y1=2x1-1, wherein (x0, y0) is coordinate value of each pixel in the map image in flat state,
WhRadio is dimension scale, and pre-set dimension includes: default wide and default height, and presetting width is 2 × whRadio, presets a height of 2.
Preferably, in the case where the display state of map image is spherical surface state, the first mapping submodule includes: first
Map unit is mapped for the coordinate value based on each pixel in the first mapping relations to map image, is in
The coordinate value of each pixel in flat state and the map image of pre-set dimension；Second map unit, for being reflected based on second
It penetrates relationship to map the coordinate value of each pixel in the map image in flat state and pre-set dimension, be switched
The initial coordinate values of each pixel in map image afterwards.
Preferably, in the case where the display state of map image is flat state, the first mapping submodule includes: third
Map unit is mapped for the coordinate value based on each pixel in the second mapping relations to map image, is in
The coordinate value of each pixel in flat state and the map image of pre-set dimension；4th map unit, for being reflected based on first
It penetrates relationship to map the coordinate value of each pixel in the map image in flat state and pre-set dimension, be switched
The initial coordinate values of each pixel in map image afterwards.
Embodiment 5
According to embodiments of the present invention, a kind of embodiment of storage medium is additionally provided, storage medium includes the program of storage,
Wherein, the state that equipment where control storage medium executes the map image in above-described embodiment 1 and 2 when program is run is converted
Method.
Embodiment 6
According to embodiments of the present invention, a kind of embodiment of processor is additionally provided, processor is for running program, wherein
Program executes the state transition method of the map image in above-described embodiment 1 and 2 when running.
The serial number of the above embodiments of the invention is only for description, does not represent the advantages or disadvantages of the embodiments.
In the above embodiment of the invention, it all emphasizes particularly on different fields to the description of each embodiment, does not have in some embodiment
The part of detailed description, reference can be made to the related descriptions of other embodiments.
In several embodiments provided herein, it should be understood that disclosed technology contents can pass through others
Mode is realized.Wherein, the apparatus embodiments described above are merely exemplary, such as the division of the unit, Ke Yiwei
A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or
Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual
Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of unit or module
It connects, can be electrical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple
On unit.It can some or all of the units may be selected to achieve the purpose of the solution of this embodiment according to the actual needs.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit
It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list
Member both can take the form of hardware realization, can also realize in the form of software functional units.
If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product
When, it can store in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially
The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words
It embodies, which is stored in a storage medium, including some instructions are used so that a computer
Equipment (can for personal computer, server or network equipment etc.) execute each embodiment the method for the present invention whole or
Part steps.And storage medium above-mentioned includes: that USB flash disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
Reservoir (RAM, Random Access Memory), mobile hard disk, magnetic or disk etc. be various to can store program code
Medium.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (16)
1. a kind of state transition method of map characterized by comprising
Map image is shown in current interface；
Detecting state switching signal, wherein the state switching signal is for cutting the display state of the map image
It changes, the display state includes: spherical surface state or flat state；
Map image after detecting the state switching signal, after display switching, wherein the Map after the switching
It seem to be mapped by the coordinate value to each pixel in the map image.
2. the method according to claim 1, wherein detecting state switching signal includes following one or more:
Detect the state switching signal that programmable button generates；
Detect the state switching signal that default gesture operation generates.
3. according to the method described in claim 2, it is characterized in that, the default gesture operation includes following one or more:
The slide for scaling gesture, clicking gesture, preset direction.
4. a kind of state transition method of map characterized by comprising
Obtain map image；
Detecting state switching signal, wherein the state switching signal is for cutting the display state of the map image
It changes, the display state includes: spherical surface state or flat state；
After detecting the state switching signal, the coordinate value of each pixel in the map image is obtained；
The coordinate value of each pixel in the map image is mapped, the map image after being switched.
5. according to the method described in claim 4, it is characterized in that, to the coordinate value of each pixel in the map image into
Row mapping, the map image after being switched include:
Obtain the coordinate mapping relations of the map image, wherein the coordinate mapping relations are for characterizing the same pixel
Pass between the coordinate value in the coordinate value in the map image in flat state and the map image in spherical surface state
System；
It is mapped based on coordinate value of the coordinate mapping relations to each pixel in the map image, obtains described cut
The coordinate value of each pixel in map image after changing；
Map image based on the coordinate value of each pixel in the map image after the switching, after generating the switching.
6. according to the method described in claim 5, it is characterized in that, the coordinate mapping relations include: the first mapping relations and
Second mapping relations, wherein second mapping relations are for characterizing the same pixel in flat state and default ruler
Relationship between coordinate value in very little map image and the coordinate value in the map image in spherical surface state, described first reflects
Relationship is penetrated for characterizing coordinate value of the same pixel in the map image in flat state and pre-set dimension and being in
The relationship between coordinate value in the map image of flat state.
7. according to the method described in claim 6, it is characterized in that, acquisition first mapping relations include:
Obtain the radius of the map image in spherical surface state；
Based on the radius, each pixel in flat state and in the map image of pre-set dimension coordinate value and
Coordinate value in map image in spherical surface state obtains first mapping relations.
8. the method according to the description of claim 7 is characterized in that first mapping relations include:
Abscissa of each pixel in the map image in flat state and pre-set dimension is the radius and institute
State the product of the radian value of the corresponding longitude of each pixel；
Ordinate of each pixel in the map image in flat state and pre-set dimension is the radius and institute
State the product of the radian value of the corresponding latitude of each pixel；
Wherein, key player on a team's functional value of the radian value of the corresponding latitude of each pixel is that each pixel is being in ball
The ratio of ordinate in the map image of surface state and the radius, the radian value of the corresponding longitude of each pixel
Sine function is the ratio of abscissa and first product of each pixel in the map image in spherical surface state,
First product is the cosine function value of the radian value of the corresponding latitude of each pixel and the product of the radius.
9. according to the method described in claim 6, it is characterized in that, acquisition second mapping relations include:
Obtain the dimension scale of the map image in flat state；
Based on the dimension scale of the map image in flat state, the pre-set dimension is obtained；
Dimension scale and each pixel based on the pre-set dimension and the map image in flat state
Coordinate in the coordinate value in the map image in flat state and pre-set dimension and the map image in flat state
Value, obtains second mapping relations.
10. according to the method described in claim 9, it is characterized in that, second mapping relations include:
Abscissa of each pixel in the map image in flat state and pre-set dimension is the second product and institute
The difference of dimension scale is stated, second product is that default wide and each pixel in the pre-set dimension is being in flat
The product of abscissa in the map image of surface state, the default width are the product of the first preset value and the dimension scale；
Each pixel is third product and the in the ordinate in flat state and in the map image of pre-set dimension
The difference of two preset values, the third product are with first preset value and each pixel in flat state
The product of abscissa in map image.
11. according to the method described in claim 6, it is characterized in that, the display state in the map image is spherical surface state
In the case where, it is mapped, is obtained based on coordinate value of the coordinate mapping relations to each pixel in the map image
The coordinate value of each pixel includes: in map image after the switching
It is mapped, is obtained in flat based on coordinate value of first mapping relations to each pixel in the map image
The coordinate value of each pixel in surface state and the map image of pre-set dimension；
Based on second mapping relations to each pixel in the map image in flat state and pre-set dimension
Coordinate value is mapped, the initial coordinate values of each pixel in the map image after obtaining the switching.
12. according to the method described in claim 6, it is characterized in that, the display state in the map image is flat state
In the case where, it is mapped, is obtained based on coordinate value of the coordinate mapping relations to each pixel in the map image
The coordinate value of each pixel includes: in map image after the switching
It is mapped, is obtained in flat based on coordinate value of second mapping relations to each pixel in the map image
The coordinate value of each pixel in surface state and the map image of pre-set dimension；
Based on first mapping relations to each pixel in the map image in flat state and pre-set dimension
Coordinate value is mapped, the initial coordinate values of each pixel in the map image after obtaining the switching.
13. a kind of state converter of map characterized by comprising
First display module, for showing map image in current interface；
Detection module is used for detecting state switching signal, wherein the state switching signal is for showing the map image
Show that state switches over, the display state includes: spherical surface state or flat state；
Second display module, for the map image after detecting the state switching signal, after display switching, wherein
Map image after the switching is mapped by the coordinate value to each pixel in the map image.
14. a kind of state converter of map characterized by comprising
First obtains module, for obtaining map image；
Detection module is used for detecting state switching signal, wherein the state switching signal is for showing the map image
Show that state switches over, the display state includes: spherical surface state or flat state；
Second obtains module, for obtaining each pixel in the map image after detecting the state switching signal
The coordinate value of point；
Mapping block maps, the map after being switched for the coordinate value to each pixel in the map image
Image.
15. a kind of storage medium, which is characterized in that the storage medium includes the program of storage, wherein run in described program
When control the storage medium where equipment perform claim require any one of 1 to 12 described in map state conversion side
Method.
16. a kind of processor, which is characterized in that the processor is for running program, wherein right of execution when described program is run
Benefit require any one of 1 to 12 described in map state transition method.
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