CN105321144A - Map dynamic projection display system and method - Google Patents
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Abstract
The present invention provides a map dynamic projection display system and method. The system comprises: a geodetic coordinate data management unit, for storing and maintaining geodetic coordinate data; a human-computer interaction interface, for receiving input interactive operation instructions and parameters; a map projection transform data processing unit, for dynamically acquiring a geodetic coordinate data collection according to the interactive operation instructions and parameters, and performing real-time projection on the geodetic coordinate data collection to transform the geodetic coordinate data collection into a plane map coordinate data collection; and a plane map data management and display unit, for displaying the plane map coordinate data collection as a plane map . According to the system and method provided by the present invention, by means of dynamically inputting projection parameters by interactive operation and based on the geodetic coordinate data, a real-time map projection computing job is performed to acquire partial plane map data needed for displaying and analyzing in time, so that a spatial analysis error problem caused by preprocessing and storing ''tile map'' data can be well solved.
Description
Technical field
The present invention relates to Computer Graphic Demonstration field, more particularly, relate to a kind of map dynamic projection display system and method.
Background technology
Map is that abstracted information important in human cognition system describes means.On map, every bit, line are all abstract expressions of specific geographic object on the earth.Universal along with infotech, the map after electronization has become socio-economic activity and even the indispensable information carrying tool of people's daily life.
First to obtain geographic object terrestrial coordinate at the earth's surface when making map, then be only and draw out plane map based on these terrestrial coordinates.But because earth surface is a curved surface that can not open up, the i.e. ellipsoid that can not open up based on one of earth coordinates, therefore directly cannot obtain plane map with the straightforward procedure of " by development of a sphere ", and must be mapped in planimetric coordinates by the terrestrial coordinate of mapping relations by earth surface geographic object.
The mapping of above-mentioned terrestrial coordinate and planimetric coordinates is map projection, and it is actually a kind of mathematic(al) manipulation, is the Fundamentals of Mathematics of cartography.Put it briefly, map projection is so a kind of information processing method: suppose there is one with desirable earth plane tangent or the projecting plane of cutting mutually, with certain mapping relations, the terrestrial coordinate point on earth surface is projected in projection plane coordinates system one by one.Above-mentioned mapping relations useful functional relationship formula broad sense is expressed as:
Wherein (x, y) is the point that projection plane coordinates is fastened, (
λ) be point (such as can represent with latitude, longitude) on earth surface.F
1, f
2be will (
λ) be mapped to map projection's function of (x, y), in certain area, f
1, f
2monodrome, limited and continuous print function.
In concrete calculating, f
1, f
2form all more complicated.Therefore, in traditional cartography process, need suitable workload to carry out map projection's computational tasks.So in traditional Geographic Information System (GIS), be all just early completed before map datum is shown by the work of terrestrial coordinate data genaration plane map coordinate data.
But, as mapping transformation, in map projection's process the spatial relationship (as length, angle, area etc.) between table object inevitably there is certain " map distortion ", especially at its figure border area, such distortion is more greater than central area.So-called map distortion refers between map projection's back plane map and original place spherical face, and geographic object spatial relationship also exists error.Therefore " map distortion " causes obstacle will to the space applied analysis precision of carrying out based on plane map.In fact, any single map projection all cannot meet a spatial analysis accuracy requirement compared with application problems all in large regions.Even if for visual experience, the region that the upper distance projection centre of " overall situation " plane map (as national maps) is far away on a large scale, its map distortion is more serious, to such an extent as to " locally " drawing at map edge seems to allow user feel not bery comfortable.
Require in higher class generalized information system at the analysis precision of reality, usually with pre-service, preserve some static state " tile map " and (generate some part plan maps with the map projection carried out in advance, be stitched together as tile), solve " map distortion " problem of single projection.The spinoff done like this makes generalized information system become very complicated to " overall situation " and the management of " locally " map datum, map distortion " gap " can be produced at different " tile map " adjacent again simultaneously, and then cause a difficult problem to again the spatial analysis process at " gap " place, thus introduce more complicated coordination " overall situation " again machine-processed with the auxiliary process of " locally " contradiction; And in the less demanding electronic map display system of other analysis precisions (as site maps, navigational system etc.), in order to avoid above-mentioned " tile map " problem, the quantity of the plane map data that then can generate in advance in minimizing system as far as possible, namely use " overall situation " map projection as far as possible on a large scale, result is that the map edge in system there will be larger metaboly.
Summary of the invention
The technical problem to be solved in the present invention is, the serious and pre-service for map distortion during the display of above-mentioned plane map, preserves the problem that it " tile map " splice gap impact analysis precision, provides a kind of map dynamic projection display system and method.
The technical scheme that the present invention solves the problems of the technologies described above is, a kind of map dynamic projection display system is provided, comprise terrestrial coordinate Data Management Unit, map projection transformation data processing unit, plane map data management and display unit and human-computer interaction interface, wherein: described terrestrial coordinate Data Management Unit, for storing and safeguarding terrestrial coordinate data; Described human-computer interaction interface, for receiving interactive operation instruction and the parameter of input, described operational order comprises map denotation instruction, and described parameter comprises plane coordinate system map display area; Described map projection transformation data processing unit, for passing through the terrestrial coordinate data acquisition in the terrestrial coordinate Data Management Unit Dynamic Acquisition earth coordinates view field corresponding with described plane coordinate system map display area according to interactive operation instruction, and described terrestrial coordinate data acquisition live fluoroscopic is transformed into the set of plane map coordinate data; Described plane map data management and display unit, for being shown as plane map by the set of described plane map coordinate data.
In map dynamic projection display system of the present invention, the parameter that described human-computer interaction interface receives also comprises unit picture element length token state, described terrestrial coordinate Data Management Unit comprises base data storing unit and individual-layer data definition unit, wherein: described base data storing unit is for storing all terrestrial coordinate data; Described individual-layer data definition unit is used for the different subsets of several logical data layer index terrestrial coordinate data; Each described Logical Data Layer has a unit picture element length and characterizes weight range, a corresponding terrestrial coordinate data subset; Described map projection transformation data processing unit is Logical Data Layer index value when accessing terrestrial coordinate data with unit picture element length token state, is that request of data scope proposes request of data with view field, and terrestrial coordinate Data Management Unit determines corresponding Logical Data Layer by comparison index value and from wherein obtaining the terrestrial coordinate data subset corresponding with view field.
In map dynamic projection display system of the present invention, described human-computer interaction interface for plane map amplification, reduce, mobile or fenestration procedure will generate map denotation instruction and plane coordinate system map display area; Described map projection transformation data processing unit is by obtaining the view field under earth coordinates by the dynamic inversion of the plane coordinate system map display area of amplifying, reducing, moving or obtaining after windowing, and then the terrestrial coordinate data obtained in view field complete projective transformation in real time, and in current window map refresh operation or newly-generated map window, show the plane map data newly converted out.
In map dynamic projection display system of the present invention, described interactive operation instruction also comprises map edit instruction, and described parameter also comprises editing parameter; Described display system also comprises window display and arranges and map edit unit, for the map edit instruction that obtains with man-machine interface and editing parameter, map edit operation is carried out to planimetric coordinates map datum, and generate new plane map coordinate data set and shown by plane map data management and display unit; The terrestrial coordinate data acquisition that inverse transformation becomes corresponding is carried out in new plane map coordinate data set by described map projection transformation data processing unit, and via corresponding individual-layer data definition unit index stores in base data storing unit.
In map dynamic projection display system of the present invention, described parameter comprises projection type, described map projection transformation data processing unit selects corresponding map projection's transfer function with the projection type of setting, and the projective transformation of terrestrial coordinate data acquisition is become the set of plane map coordinate data.
The present invention also provides a kind of map dynamic projection display packing, comprises the following steps:
A () receives interactive operation instruction and the parameter of input by human-computer interaction interface, described operational order comprises map denotation instruction, and described parameter comprises plane coordinate system map display area;
B described plane coordinate system map display area dynamic inverse is become view field under earth coordinates by (), and obtain corresponding terrestrial coordinate data acquisition, and described terrestrial coordinate data acquisition live fluoroscopic is transformed into the set of plane map coordinate data;
C plane map coordinate data set that live fluoroscopic described in described step (b) goes out by () is shown as plane map.
In map dynamic projection display packing of the present invention, the parameter that described human-computer interaction interface receives also comprises unit picture element length token state, described terrestrial coordinate data are stored by the index of individual-layer data definition unit by base data storing unit is unified and safeguards, described individual-layer data definition unit defines the different subsets of some logical data layer index terrestrial coordinate data, each Logical Data Layer has a unit picture element length and characterizes weight range, a corresponding terrestrial coordinate data subset; In described step (b), be Logical Data Layer index value with unit picture element length token state, be that request of data scope proposes request of data with view field, terrestrial coordinate Data Management Unit determines corresponding Logical Data Layer by comparison index value and from wherein obtaining the terrestrial coordinate data acquisition corresponding with view field.
In map dynamic projection display packing of the present invention, map denotation instruction in described step (a) and plane coordinate system map display area are amplified according to plane map by human-computer interaction interface, reduce, mobile or fenestration procedure generates, and described step (b) comprising: by amplifying, and reduce, the dynamic inversion of plane coordinate system map display area that is mobile or that obtain after windowing obtain view field under earth coordinates.
In map dynamic projection display packing of the present invention, described interactive operation instruction also comprises map edit instruction, and described parameter also comprises editing parameter; Described method also comprises:
D map edit instruction that () obtains with man-machine interface and editing parameter carry out map edit operation to planimetric coordinates map datum, and generate new plane map coordinate data set and shown by plane map data management and display unit;
E the terrestrial coordinate data acquisition that inverse transformation becomes corresponding is carried out in new plane map coordinate data set by (), and via corresponding individual-layer data definition unit index stores in base data storing unit.
In map dynamic projection display packing of the present invention, described parameter comprises projection type, described step (b) comprising: select corresponding map transfer function with the projection type set, the projective transformation of terrestrial coordinate data acquisition is become the set of plane map coordinate data.
Map dynamic projection display system of the present invention and method, by when needs show regional area plane map data, directly carry out dynamic map projection computational tasks based on the terrestrial coordinate data in this region, part plan map needed for real-time acquisition, and do not adopt pre-service to generate, the partial projection plane map preserved, well can not only solve map distortion when plane map shows serious, and generate it " tile map " in advance and splice the spatial analysis error problem brought in gap, also eliminate the problem that plane map data management that " tile map " bring is very complicated simultaneously.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of map dynamic projection display system embodiment of the present invention.
Fig. 2 is the schematic diagram of map dynamic projection display packing embodiment of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
As shown in Figure 1, be the schematic diagram of map dynamic projection display system embodiment of the present invention, it can be used for Geographic Information System (GIS), and terrestrial coordinate data are shown as plane map.The map dynamic projection display system of the present embodiment comprises terrestrial coordinate Data Management Unit 15, map projection transformation data processing unit 14, plane map data management and display unit 13 and human-computer interaction interface 11.Above-mentioned terrestrial coordinate Data Management Unit 15, map projection transformation data processing unit 14, plane map data management and display unit 13 and human-computer interaction interface 11 can by the software sharing run on universal or special computer platform.Particularly, above-mentioned terrestrial coordinate Data Management Unit 15 can be positioned at server, map projection transformation data processing unit 14, plane map data management and display unit 13 and human-computer interaction interface 11 can be positioned at terminal device, and server is connected by network with terminal device.
Terrestrial coordinate Data Management Unit 15 is for storing and safeguarding terrestrial coordinate data, such as, with database mode.This terrestrial coordinate Data Management Unit 15 main task carries out the stratification organization and administration of the same end to terrestrial coordinate data, allows to press designated space scope and level extraction, store terrestrial coordinate data subset.Particularly, terrestrial coordinate Data Management Unit 14 comprises base data storing unit and individual-layer data definition unit, wherein: base data storing unit is for storing all terrestrial coordinate data; Individual-layer data definition unit is used for the different subsets of several logical data layer index terrestrial coordinate data; It is interval that each described Logical Data Layer has a unit picture element length token state (engineer's scale in such as plane map or converse according to this engineer's scale), a corresponding terrestrial coordinate data subset.By the way, terrestrial coordinate data are defined as several Logical Data Layers by individual-layer data definition unit, (this subset is virtual data acquisition to the corresponding terrestrial coordinate data subset of each Logical Data Layer, only for terrestrial coordinate data corresponding in fast finding base data storing unit), improve the efficiency of data maintenance.
Human-computer interaction interface 11 is for receiving interactive operation instruction and the parameter of input, and aforesaid operations instruction comprises map denotation instruction, parameter comprises plane coordinate system map display area.Particularly, this human-computer interaction interface 11 generates map denotation instruction and plane coordinate system map display area parameter according to different input operations.
Above-mentioned input operation can be: by mouse drag map display window, this map display window is zoomed in or out, drag the map shown in map display window move, zoomed in or out by the map shown in roll mouse pair of rollers map display window, by dialog box input scaling parameter, by mouse click in map display window show map certain part, to be clicked by mouse and zoom in or out button etc. in map display window.Map denotation instruction can be amplified, reduces for display, translation, fenestration procedure, plane coordinate system map display area parameter then comprises the body of a map or chart of map denotation instruction wish display.The above-mentioned body of a map or chart for display refers to: the new window that fenestration procedure produces or convergent-divergent and mobile operate after the rectangular extent of current window in plane map coordinate system.Rectangular extent in above-mentioned plane coordinate system converts through backwards projection, and the corresponding rectangular extent that can obtain in terrestrial coordinate data space, is view field's parameter.Therefore, map denotation instruction all causes the generation of new plane coordinate system map display area, this new plane coordinate system map display area dynamically produces corresponding new view field, and then the terrestrial coordinate data obtained in view field also complete projective transformation in real time, and refresh at current window map or show the plane map data newly converted out in newly-generated map window.
When the parameter that human-computer interaction interface 11 receives comprises unit picture element length token state, in map denotation instruction reduce and the interactive operation such as amplification also will cause increase and the reduction of window current one length in pixels token state, the foundation that the unit picture element length token state after zooming in or out obtains as individual-layer data by human-computer interaction interface 11.Fenestration procedure then calculates its unit picture element length token state by according to the size of institute's new window.
Terrestrial coordinate data acquisition live fluoroscopic for passing through the terrestrial coordinate Data Management Unit 15 Dynamic Acquisition terrestrial coordinate data acquisition corresponding with plane coordinate system map display area according to interactive operation instruction, and is transformed into plane map coordinate data set (use projection function) by map projection transformation data processing unit 14.The parameter received at human-computer interaction interface 11 comprises unit picture element length token state, and terrestrial coordinate Data Management Unit 15 is when comprising with the individual-layer data definition unit of unit picture element length token state interval hierarchical index terrestrial coordinate data, the inversion of plane coordinate system map display area is first view field by map projection transformation data processing unit 14, then with unit picture element length token state for Logical Data Layer index value, be that request of data scope proposes request of data with view field, by comparison index value, terrestrial coordinate Data Management Unit 15 determines that corresponding Logical Data Layer is from wherein obtaining the terrestrial coordinate data acquisition corresponding with view field.
Plane map data management and display unit 13 are for being shown as plane map by plane map coordinate data set (being generated by map projection transformation data processing unit 14).
Especially, when system starts, view field's (unit picture element length token state is maximal value, corresponding minimum scale chi unit) that the instruction of human-computer interaction interface 11 default action is display map instructions, plane coordinate system map display area correspondence covers whole terrestrial coordinate data.
The interactive operation instruction that above-mentioned man-machine interface 11 receives also comprises map edit instruction, and corresponding parameter also comprises editing parameter (map edit instruction and operation corresponding to editing parameter are included in the corresponding data of the increase to plane map key element that map display window carries out, deletion and retouching operation and generation).Now, map dynamic projection display system of the present invention also comprises window display setting and map edit unit 12.The display of this window is arranged and map edit unit 12 carries out map edit operation for the map edit instruction that obtains with man-machine interface 11 and editing parameter to planimetric coordinates map datum, and generates new plane map coordinate data set and shown by plane map data management and display unit 13.The terrestrial coordinate data acquisition that inverse transformation becomes corresponding is then carried out in new plane map coordinate data set by map projection transformation data processing unit 14, and via the corresponding individual-layer data definition unit index stores of terrestrial coordinate Data Management Unit 15 in base data storing unit.
For realizing different plane map display modes, the parameter that above-mentioned human-computer interaction interface 11 receives also can comprise projection type, correspondingly, projection transformation data processing unit 14 selects corresponding map transfer function with the projection type of setting, and the projective transformation of terrestrial coordinate data acquisition is become the set of plane map coordinate data.
Be below an example of above-mentioned map dynamic projection display operation: human-computer interaction interface 11 sends map display window idsplay order, and unit picture element length token state and plane coordinate system map display area two optimum configurations of map display window W are completed by window display setting and map edit unit 12, and be view field by map projection transformation data processing unit 14 by the inversion of plane coordinate system map display area, to terrestrial coordinate map data management unit 15, terrestrial coordinate request of data is proposed.Terrestrial coordinate Data Management Unit 15 is interval with the token state of each Logical Data Layer of unit picture element length token state comparison of W, determine the terrestrial coordinate data of corresponding xth logical layer, then to obtain the data subset in zone boundary in the terrestrial coordinate data acquisition of the view field of W in this xth logical layer, and then its place of delivery Projective Transformation of Map data processing unit 14 is processed.The projection type that map projection transformation data processing unit 14 provides according to W and projective parameter complete map projection's operation, then result are paid plane map data management and display unit 13 completes plane map display operation.
The present invention also provides a kind of map dynamic projection display packing, comprises the following steps:
Step S21: obtain the overall terrestrial coordinate data with maximum unit length in pixels token state, with the default value of projection type, view field, map projection transformation operation is carried out to global data, obtain overall plane map data and it is shown as global map in the map window of system default.Above-mentioned terrestrial coordinate data store by base data storing unit is unified, by individual-layer data definition unit index maintenance, terrestrial coordinate data entirety is defined as several Logical Data Layers by individual-layer data definition unit, it is interval that each Logical Data Layer has a unit picture element length token state (engineer's scale in such as plane map), a corresponding terrestrial coordinate data subset.
This step performs when system starts.
Step S22: the interactive operation instruction and the parameter that are received input by human-computer interaction interface, operational order comprises map denotation instruction, and parameter comprises plane coordinate system map display area.Map denotation instruction in this step and plane coordinate system viewing area parameter, specifically can be amplified by the plane map in human-computer interaction interface according to the map display window, reduce, move or fenestration procedure generates.
Step S23: obtain the terrestrial coordinate data acquisition corresponding with plane coordinate system viewing area and (such as obtain view field border by the dynamic inversion in viewing area by amplifying, reduce, in movement or the plane map after windowing, and obtain terrestrial coordinate data acquisition in this view field), and the projective transformation of terrestrial coordinate data acquisition is become the set of plane map coordinate data.In this step, according to the logical data layering defined in unit picture element length token state selection individual-layer data definition unit, the terrestrial coordinate data acquisition corresponding with view field can be obtained.
Step S24: the set of plane map coordinate data is shown as plane map.
Especially, above-mentioned interactive operation instruction also comprises map edit instruction, and corresponding parameter also comprises editing parameter; Said method also comprises: the map edit instruction obtained with man-machine interface and editing parameter carry out map edit operation to planimetric coordinates map datum, and generates new plane map coordinate data set by plane map data management and display unit display; New plane map coordinate data set is carried out the terrestrial coordinate data acquisition that inverse transformation becomes corresponding, and via corresponding individual-layer data definition unit index stores in base data storing unit.
For realizing different plane map display modes, in above-mentioned map dynamic projection display packing, the parameter that in step S22, human-computer interaction interface receives also can comprise map projection's type, thus with the map transfer function that map projection's type selecting of setting is corresponding in step S23, the projective transformation of terrestrial coordinate data acquisition is become the set of plane map coordinate data.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. a map dynamic projection display system, it is characterized in that: comprise terrestrial coordinate Data Management Unit, map projection transformation data processing unit, plane map data management and display unit and human-computer interaction interface, wherein: described terrestrial coordinate Data Management Unit, for storing and safeguarding terrestrial coordinate data; Described human-computer interaction interface, for receiving interactive operation instruction and the parameter of input, described operational order comprises map denotation instruction, and described parameter comprises plane coordinate system map display area; Described map projection transformation data processing unit, for passing through the terrestrial coordinate data acquisition in the terrestrial coordinate Data Management Unit Dynamic Acquisition earth coordinates view field corresponding with described plane coordinate system map display area according to interactive operation instruction, and described terrestrial coordinate data acquisition live fluoroscopic is transformed into the set of plane map coordinate data; Described plane map data management and display unit, for being shown as plane map by the set of described plane map coordinate data.
2. map dynamic projection display system according to claim 1, it is characterized in that: the parameter that described human-computer interaction interface receives also comprises unit picture element length token state, described terrestrial coordinate Data Management Unit comprises base data storing unit and individual-layer data definition unit, wherein: described base data storing unit is for storing all terrestrial coordinate data; Described individual-layer data definition unit is used for the different subsets of several logical data layer index terrestrial coordinate data; Each described Logical Data Layer has a unit picture element length and characterizes weight range, a corresponding terrestrial coordinate data subset; Described map projection transformation data processing unit is Logical Data Layer index value when accessing terrestrial coordinate data with unit picture element length token state, is that request of data scope proposes request of data with view field, and terrestrial coordinate Data Management Unit determines corresponding Logical Data Layer by comparison index value and from wherein obtaining the terrestrial coordinate data subset corresponding with view field.
3. map dynamic projection display system according to claim 2, is characterized in that: described human-computer interaction interface for plane map amplification, reduce, mobile or fenestration procedure will generate map denotation instruction and plane coordinate system map display area; Described map projection transformation data processing unit is by obtaining the view field under earth coordinates by the dynamic inversion of the plane coordinate system map display area of amplifying, reducing, moving or obtaining after windowing, and then the terrestrial coordinate data obtained in view field complete projective transformation in real time, and in current window map refresh operation or newly-generated map window, show the plane map data newly converted out.
4. map dynamic projection display system according to claim 1, is characterized in that: described interactive operation instruction also comprises map edit instruction, and described parameter also comprises editing parameter; Described display system also comprises window display and arranges and map edit unit, for the map edit instruction that obtains with man-machine interface and editing parameter, map edit operation is carried out to planimetric coordinates map datum, and generate new plane map coordinate data set and shown by plane map data management and display unit; The terrestrial coordinate data acquisition that inverse transformation becomes corresponding is carried out in new plane map coordinate data set by described map projection transformation data processing unit, and via corresponding individual-layer data definition unit index stores in base data storing unit.
5. the map dynamic projection display system according to any one of claim 1-4, it is characterized in that: described parameter comprises projection type, described map projection transformation data processing unit selects corresponding map projection's transfer function with the projection type of setting, and the projective transformation of terrestrial coordinate data acquisition is become the set of plane map coordinate data.
6. a map dynamic projection display packing, is characterized in that: comprise the following steps:
A () receives interactive operation instruction and the parameter of input by human-computer interaction interface, described operational order comprises map denotation instruction, and described parameter comprises plane coordinate system map display area;
B described plane coordinate system map display area dynamic inverse is become view field under earth coordinates by (), and obtain corresponding terrestrial coordinate data acquisition, and described terrestrial coordinate data acquisition live fluoroscopic is transformed into the set of plane map coordinate data;
C plane map coordinate data set that live fluoroscopic described in described step (b) goes out by () is shown as plane map.
7. map dynamic projection display packing according to claim 6, it is characterized in that: the parameter that described human-computer interaction interface receives also comprises unit picture element length token state, described terrestrial coordinate data are stored by the index of individual-layer data definition unit by base data storing unit is unified and safeguards, described individual-layer data definition unit defines the different subsets of some logical data layer index terrestrial coordinate data, each Logical Data Layer has a unit picture element length and characterizes weight range, a corresponding terrestrial coordinate data subset; In described step (b), be Logical Data Layer index value with unit picture element length token state, be that request of data scope proposes request of data with view field, terrestrial coordinate Data Management Unit determines corresponding Logical Data Layer by comparison index value and from wherein obtaining the terrestrial coordinate data acquisition corresponding with view field.
8. map dynamic projection display packing according to claim 6, it is characterized in that: the map denotation instruction in described step (a) and plane coordinate system map display area are amplified according to plane map by human-computer interaction interface, reduce, mobile or fenestration procedure generates, and described step (b) comprising: by amplifying, and reduce, the dynamic inversion of plane coordinate system map display area that is mobile or that obtain after windowing obtain view field under earth coordinates.
9. map dynamic projection display packing according to claim 6, is characterized in that: described interactive operation instruction also comprises map edit instruction, and described parameter also comprises editing parameter; Described method also comprises:
D map edit instruction that () obtains with man-machine interface and editing parameter carry out map edit operation to planimetric coordinates map datum, and generate new plane map coordinate data set and shown by plane map data management and display unit;
E the terrestrial coordinate data acquisition that inverse transformation becomes corresponding is carried out in new plane map coordinate data set by (), and via corresponding individual-layer data definition unit index stores in base data storing unit.
10. map dynamic projection display packing according to claim 6, it is characterized in that: described parameter comprises projection type, described step (b) comprising: select corresponding map transfer function with the projection type set, the projective transformation of terrestrial coordinate data acquisition is become the set of plane map coordinate data.
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| CN107391578A (en) * | 2017-06-20 | 2017-11-24 | 国家测绘地理信息局海南基础地理信息中心 | A kind of Map Service of Network dynamic coordinate conversion method based on grid method |
| CN107845136A (en) * | 2017-09-19 | 2018-03-27 | 浙江科澜信息技术有限公司 | A kind of landform flattening method of three-dimensional scenic |
| CN108108088A (en) * | 2016-11-24 | 2018-06-01 | 深圳市优朋普乐传媒发展有限公司 | A kind of method and terminal of definite pixel position |
| CN108922372A (en) * | 2018-05-18 | 2018-11-30 | 霍州煤电集团吕梁山煤电有限公司方山木瓜煤矿 | A kind of localization method of customized map and coordinate based on mobile terminal |
| CN110297863A (en) * | 2019-06-27 | 2019-10-01 | 国网上海市电力公司 | A kind of the high-precision map DecryptDecryption display system and method for power distribution network repairing |
| CN111459436A (en) * | 2020-03-31 | 2020-07-28 | 联想(北京)有限公司 | Output control method and device |
| CN112015839A (en) * | 2020-08-28 | 2020-12-01 | 北京百度网讯科技有限公司 | Map coordinate processing method, map coordinate processing device, electronic device, and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1595067A (en) * | 2004-06-23 | 2005-03-16 | 武汉虹信通信技术有限责任公司 | Method for rapid transformation of geographical coordinate projection in navigational system |
| US20070188516A1 (en) * | 2006-02-10 | 2007-08-16 | Ioup Elias Z K | Method for Efficiently Transforming a raster image from one map projection to another map projection |
| CN101640000A (en) * | 2009-06-01 | 2010-02-03 | 北京四维图新科技股份有限公司 | Map display method, map display system, navigator and electronic map |
| CN102870147A (en) * | 2010-02-03 | 2013-01-09 | 奥库路斯信息有限公司 | System and method for creating and displaying map projections related to real-time images |
| CN104134187A (en) * | 2014-07-30 | 2014-11-05 | 陈军 | Point-to-point tile map dynamic projection method and device |
| US20140362107A1 (en) * | 2013-06-10 | 2014-12-11 | International Business Machines Corporation | Generating a composite field of view using a plurality of oblique panoramic images of a geographic area |
-
2015
- 2015-07-02 CN CN201510383408.6A patent/CN105321144A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1595067A (en) * | 2004-06-23 | 2005-03-16 | 武汉虹信通信技术有限责任公司 | Method for rapid transformation of geographical coordinate projection in navigational system |
| US20070188516A1 (en) * | 2006-02-10 | 2007-08-16 | Ioup Elias Z K | Method for Efficiently Transforming a raster image from one map projection to another map projection |
| CN101640000A (en) * | 2009-06-01 | 2010-02-03 | 北京四维图新科技股份有限公司 | Map display method, map display system, navigator and electronic map |
| CN102870147A (en) * | 2010-02-03 | 2013-01-09 | 奥库路斯信息有限公司 | System and method for creating and displaying map projections related to real-time images |
| US20140362107A1 (en) * | 2013-06-10 | 2014-12-11 | International Business Machines Corporation | Generating a composite field of view using a plurality of oblique panoramic images of a geographic area |
| CN104134187A (en) * | 2014-07-30 | 2014-11-05 | 陈军 | Point-to-point tile map dynamic projection method and device |
Non-Patent Citations (1)
| Title |
|---|
| 李炜: "地理信息一体化空间坐标系统的设计与实现", 《中国优秀硕士学位论文全文数据库 基础科学辑》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108108088A (en) * | 2016-11-24 | 2018-06-01 | 深圳市优朋普乐传媒发展有限公司 | A kind of method and terminal of definite pixel position |
| CN106951544A (en) * | 2017-03-24 | 2017-07-14 | 徐喆 | Cloud atlas dynamic play method and playing device |
| CN106951544B (en) * | 2017-03-24 | 2020-03-20 | 徐喆 | Cloud picture dynamic playing method and playing device |
| CN107391578A (en) * | 2017-06-20 | 2017-11-24 | 国家测绘地理信息局海南基础地理信息中心 | A kind of Map Service of Network dynamic coordinate conversion method based on grid method |
| CN107845136A (en) * | 2017-09-19 | 2018-03-27 | 浙江科澜信息技术有限公司 | A kind of landform flattening method of three-dimensional scenic |
| CN107845136B (en) * | 2017-09-19 | 2021-05-25 | 浙江科澜信息技术有限公司 | Terrain flattening method for three-dimensional scene |
| CN108922372A (en) * | 2018-05-18 | 2018-11-30 | 霍州煤电集团吕梁山煤电有限公司方山木瓜煤矿 | A kind of localization method of customized map and coordinate based on mobile terminal |
| CN110297863A (en) * | 2019-06-27 | 2019-10-01 | 国网上海市电力公司 | A kind of the high-precision map DecryptDecryption display system and method for power distribution network repairing |
| CN111459436A (en) * | 2020-03-31 | 2020-07-28 | 联想(北京)有限公司 | Output control method and device |
| CN112015839A (en) * | 2020-08-28 | 2020-12-01 | 北京百度网讯科技有限公司 | Map coordinate processing method, map coordinate processing device, electronic device, and storage medium |
| CN112015839B (en) * | 2020-08-28 | 2024-03-01 | 北京百度网讯科技有限公司 | Map coordinate processing method, map coordinate processing device, electronic apparatus, and storage medium |
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