CN103366635B - Method for dynamically marking mobile object in electronic map - Google Patents
Method for dynamically marking mobile object in electronic map Download PDFInfo
- Publication number
- CN103366635B CN103366635B CN201310324246.XA CN201310324246A CN103366635B CN 103366635 B CN103366635 B CN 103366635B CN 201310324246 A CN201310324246 A CN 201310324246A CN 103366635 B CN103366635 B CN 103366635B
- Authority
- CN
- China
- Prior art keywords
- mobile object
- annotation frame
- annotation
- frame
- map sheet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Instructional Devices (AREA)
Abstract
The invention provides a method for dynamically marking mobile objects in an electronic map. The method comprises the following steps: 1. loading map data and determining the map sheet sides of note boxes and the maximal volumes of the note boxes; 2, selecting the to-be-marked mobile objects based on the maximal volumes of the note boxes, and determining the unified size of all the note boxes; 3, determining the one-to-one correspondence between the note boxes and the mobile objects according to the positions of the to-be-marked mobile objects, and connecting the mobile objects and the corresponding note boxes by drawing leading lines; 4, filling the text strings of each mobile object into the note boxes according to the one-to-one correspondence between the note boxes and the mobile objects; and 5, returning to the third step after the positions of the mobile objects are updated, re-determining the correspondence between the mobile objects and the note boxes, and filling the note text strings. The plan for dynamically marking the mobile objects provided by the invention is conductive to the clear and real-time display of the electronic map.
Description
Technical field
The present invention relates to electronic chart display and related application field, when especially relating to the display of a kind of electronic chart, the method of dynamic label placement is carried out, for analysis and the monitoring of road net mobile object to mobile object (point) in network chart (railway network, road net) segmental arc.
Background technology
Electronic chart display is the important means of geographic information application and service, the dynamic of electronic chart due to its content and the limitation of display screen, and it is one of gordian technique of electronic chart display that current map drawing carries out automatic name placement always.About this direction of Dynamic Announce annotation on electronic chart, existing partial monopoly relates to this content, such as patent " dynamic point ground feature annotation of GIS implementation method " (application number: 200510018873.6), this patent, mainly according to current window scope, determines the annotation position of an atural object; The patent method of multi-resolution adaptive annotation " in a kind of 3DGIS " (application number: 200910076427.9) mainly according to the spatial dimension of current resolution and scene domain determination atural object, calculate the position of atural object annotation thus.The dynamic annotation that these patents relate to, is mainly reflected in the dynamic of annotation, but not atural object is dynamic, does not namely relate to the annotation problem of mobile object on map.In addition, also some documents are had to introduce the method for dynamic annotation, more typically have: " in electronic chart, the research of dynamic annotation method realizes " (Zhao Xiuzhong, Liu Xiuguo, " small-sized microcomputer system "), " the self-adaptive labelling research of electronic chart " (height stores up grain, Yang Chongjun etc., " computer engineering and application "), " research of Dynamic Labeling of Electronic Map " (Yang Lingyun, Li Jing etc., " software guide "), " method that Dynamic Labeling of Electronic Map configures automatically " (Zhang Shengli, Ke Guangheng, " geospatial information ") and " self-adaptive labelling in electronic chart " (Yang Hanguang, " the 15 national engineering calculation machine application academic conference ").The solution that these methods propose mainly for current display screen map elements annotation content integrity and the problem that seamlessly transits, the marking method of the automatic adaptation current display screen to static atural object still related to, do not comprise mobile key element, particularly to the annotation technology of the upper mobile object of network (railway network or network of highways).
Summary of the invention
The invention provides a kind of method marked mobile object, make annotation unification be arranged in drawing side, annotation position is motionless, and the lead-in wire connecting annotation and mobile object changes along with mobile object location and changes.
Technical scheme of the present invention is the dynamic label placement method of mobile object on a kind of electronic chart, comprises following steps:
Step 1, is loaded into map datum, determines the max cap. of annotation frame place map sheet avris and annotation frame;
Step 2, the max cap. based on annotation frame chooses mobile object to be marked, determines the size that all annotation frames are unified;
Step 3, according to mobile object location to be marked, determines the one-to-one relationship of annotation frame and mobile object, and goes between and to be coupled together by corresponding with it for mobile object annotation frame; Implementation is as follows,
Step 3.1, is provided with n annotation frame, and the mid point that the near side in distance map sheet center got by each annotation frame is the end points doing with mobile object to go between, and endpoint location is used
l irepresent, i is annotation frame numbering, i=1,2 ..., n; Mobile object position to be marked is designated mobile object point
m k, k=1,2 ..., n; Loop variable i is set, and initialize i=1;
Step 3.2, if i is greater than n, enters step 4, otherwise enters step 3.3;
Step 3.3, finds corresponding mobile object point based on i value,
l ifor the end points of current pending annotation frame, from
l imake a ray
rrotate,
When the ray rotated
rencounter first and only have a untreated mobile object point
m ktime, will
m kwith
l ibe mapped, do
l iwith
m klead-in wire, and identify mobile object point
m kprocessed; Loop variable i cumulative 1 will be put, forward step 3.2 to;
When the ray rotated
rencounter first untreated mobile object point, and when ray having multiple untreated mobile object point, if ray there be q unlabelled mobile object point, first to this q mobile object press with
l idistance sort from small to large and be designated as successively
m k1,
m k2...,
m kq, then respectively will
m k1,
m k2...,
m kqwith
l i,
l i+1...,
l i+q-1be mapped, do
m k1with
l i,
m k2with
l i+1...,
m kqwith
l i+q-1lead-in wire, and identify this q mobile object point
m k1,
m k2...,
m kqprocessed; To work as the i-th+q indicia framing as current pending indicia framing, the value by i is revised as i+q, turns back to step 3.2;
Step 4, according to the one-to-one relationship of annotation frame and mobile object, inserts the text strings of each mobile object in annotation frame;
Step 5, after mobile object location upgrades, is back to step 3, redefines the corresponding relation of mobile object and annotation frame and insert annotation text strings.
And in described step 1, annotation frame place map sheet avris is the left side of map sheet or right side or upside or downside, and when annotation frame place map sheet avris is left side or the right side of map sheet, the text strings of mobile object is transversely arranged in annotation frame; When annotation frame place map sheet avris is upside or the downside of map sheet, text strings longitudinal arrangement in annotation frame of mobile object.
And in described step 1, the max cap. of annotation frame calculates in the following manner,
When text strings is transversely arranged in annotation frame, calculate according to annotation frame minimum constructive height and map sheet altitude gauge the maximum number that annotation frame place map sheet avris can hold annotation frame
n max; Text strings during longitudinal arrangement, calculates according to annotation frame minimum widith and map sheet width gauge the maximum number that annotation frame place map sheet avris can hold annotation frame in annotation frame
n max; Maximum number
n maxcomputing formula is as follows,
N max=INT(
H map/
h min)
Wherein
hmap is map sheet height or width,
hmin is annotation frame minimum constructive height or width, and function INT (x) represents x value round numbers part.
And, the size that in described step 2, all annotation frames are unified, refers to the height of annotation frame, refers to the width of annotation frame in text strings in annotation frame during longitudinal arrangement when text strings is transversely arranged in annotation frame, determine that the size implementation that all annotation frames are unified is as follows
If mobile object sum to be marked
n objjust equal
n max, then get
h minfor height or the width of annotation frame; If mobile object sum to be marked
n objbe less than
n max, calculate height or the width of annotation frame
h lab=INT (10*
h map/ (10*
n obj– (
n obj-1))).
And in described step 4, the text strings that each annotation frame is inserted is determined by the attribute of corresponding mobile object.
The present invention proposes the dynamic label placement method of mobile object on a kind of electronic chart, and annotation word and its mobile object, on a certain side of map, are coupled together by lead-in wire, complete the mark to mobile object by its all annotation frame all proper alignment; When mobile object location changes, according to reposition, recalculate the corresponding relation of annotation frame and mobile object, and carry out line and annotation accordingly.The invention provides dynamic mobile object annotation scheme, be conducive to the clear real-time display of electronic chart, be suitable for adopting computing machine to realize automatically running, filled up the relevant blank of the art.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the embodiment of the present invention.
Fig. 2 is the annotation design sketch of the embodiment of the present invention.
Embodiment
Understand for the ease of those of ordinary skill in the art and implement the present invention, below in conjunction with drawings and Examples, the present invention is described in further detail.
The embodiment of the present invention comprises the following steps:
Step 1, is loaded into map datum, determines the max cap. of annotation frame place map sheet avris and annotation frame;
Step 2, the max cap. based on annotation frame chooses mobile object to be marked, determines the size that all annotation frames are unified;
Step 3, according to mobile object location to be marked, determines the one-to-one relationship of annotation frame and mobile object, and goes between and to be coupled together by corresponding with it for mobile object annotation frame;
Step 4, according to the one-to-one relationship of annotation frame and mobile object, inserts the text strings of each mobile object in annotation frame;
Step 5, after mobile object location upgrades, is back to step 3, redefines the corresponding relation of mobile object and annotation frame and insert annotation text strings.
Computer software technology can be adopted during concrete enforcement to realize automatic operational scheme, for the sake of ease of implementation, provide detailed process to design as Fig. 1:
(1) annotation position (map sheet side) and the scope of view picture figure is determined.
Carry out map elements data encasement in advance, after map datum is loaded into screen, determine the position (which avris of map sheet) that the annotation frame of all marks is placed.During concrete enforcement, avris can be specified by the distribution situation of factor content on user according to the map map sheet, also can give tacit consent at which avris of map sheet by computing machine, such as, give tacit consent on right side.Position on the left of map sheet or right side time, upper figure below edge is its annotation scope, and all annotation frames must not arrange the map sheet height exceeding left/right side; Position on the upside of map sheet or downside time, figure edge, left and right is its annotation scope, and all annotation frames must not arrange the map sheet width exceeding up/down side.In embodiment, be described for right side, the train mark on map shown in Figure 2.
(2) the annotation frame max cap. of drawing is determined.
Drawing norm needs the requirement of the upper minimum resolution of figure or user oneself according to the map, determines minimum constructive height or the width of annotation frame, accordingly, calculates according to map sheet height or width gauge the maximum number that this figure breadths can hold annotation frame
n max:
N max=INT(
H map/
h min)
Wherein
hmap is map sheet height or width,
hmin is annotation frame minimum constructive height or width, and function INT (x) represents x value round numbers part.
Text strings transverse direction or longitudinal arrangement in annotation frame of mobile object.When the text strings of mobile object is transversely arranged in annotation frame, calculate according to map sheet height and annotation frame minimum constructive height; The text strings of mobile object during longitudinal arrangement, calculates according to map sheet width and annotation frame minimum widith in annotation frame.
There is provided callout box in order to as far as possible many, when general annotation frame place map sheet avris is left side or the right side of map sheet, the text strings of mobile object is transversely arranged in annotation frame; When annotation frame place map sheet avris is upside or the downside of map sheet, text strings longitudinal arrangement in annotation frame of mobile object.
hmin can be the value that on 9K or drawing, 2.0mm is suitable by drawing norm principle value, or by user's this value given.
If when annotation frame place map sheet avris is left side or the right side of map sheet, text strings longitudinal arrangement in annotation frame of mobile object, or when annotation frame place map sheet avris is upside or the downside of map sheet, the text strings of mobile object is transversely arranged in annotation frame,
hmin can preset according to the text strings extreme length estimated.
The mode that embodiment adopts the text strings of mobile object transversely arranged in annotation frame, calculate the annotation frame be configured on the right side of figure limit maximum number (
n max), account form is as follows:
N max=INT(
H map/
h min)
Wherein,
hmapfor map sheet height,
hminfor annotation frame minimum constructive height.
(3) mobile object to be noted and quantity is determined.
Based on the maximum number of (2) gained annotation frame
n max, choose the mobile object of mark according to user's request (such as selecting a certain type mobile object), the object number chosen
n objbe not more than
n max: namely
n obj￡
n max.During concrete enforcement, those skilled in the art can adopt computer software technology design, and support user's optional m igration object by type, such as electronic chart provides the vehicle that highway runs, and user can select the vehicle of hazmats class.Exceed at the mobile object selected
n maxtime prompting user revise selection.
(4) the unified size of annotation frame is determined.
If mobile object sum to be marked
n objjust equal
n max, then get
h minfor height or the width of annotation frame; If mobile object sum to be marked
n objbe less than
n max, calculate height or the width of annotation frame
h lab=INT (10*
h map/ (10*
n obj– (
n obj-1))).
Specifically, when text strings is transversely arranged in annotation frame according to the height of map sheet high computational annotation frame, width can adopt default size or according to text strings length self-adaptative adjustment; Text strings in annotation frame during longitudinal arrangement according to the width of map sheet width calculation annotation frame, height can adopt default size or according to text strings length self-adaptative adjustment.
Embodiment is according to determined mobile object number, and annotation frame uniform height computing method are as follows:
If need the mobile object number of mark
n objjust equal
n max, namely
n obj=
n max, then get
h minfor the height of annotation frame;
If the mobile object number of selected mark
n objbe less than
n max, namely
n obj<
n maxtime, then calculate the height of actual annotation frame
h lab:
h lab=INT(10×
H map/(10×
N obj– (
N obj-1)))。
According to the annotation frame uniform height calculated, by annotation frame on the right side of figure limit equably by arranging from top to down and numbering in order.
(5) determine the corresponding relation of mobile object and annotation frame, and go between the two.
According to mobile object current location, determine each mobile object corresponding to annotation frame, set up corresponding relation between the two.In order to the convenience calculating and process, whenever determining the relation of an annotation frame and a mobile object, just make lead-in wire and connect.The step of concrete enforcement is as follows:
1) be provided with n annotation frame, frame and mobile object make the end points that goes between, this endpoint location use to each frame mid point of getting the near side (embodiment annotation frame is on the right side of map sheet, therefore gets the frame left side) in distance map sheet center for this reason
l irepresent, i is annotation frame numbering, i=1,2 ..., n.The station location marker of mobile object now to be marked is mobile object point
m k, k=1,2 ..., n.Wherein, n=
n obj.Loop variable i is set, and initialize i=1.
2) if i is greater than n, then represent that all indicia framings are disposed, process terminates to enter (6), otherwise, enter 3).
3) corresponding mobile object point is found based on i value,
l ifor the end points of current pending annotation frame, from
l ipoint one, work ray vertically upward
r, and with this
l ifor point of fixity, counterclockwise rotate ray
r,
When the ray rotated
rencounter first and only have a untreated mobile object point
m ktime, will
m kwith
l ibe mapped (namely
m kcorresponding mobile object with
l icorresponding relation set up by corresponding annotation frame), do
l iwith
m kline (namely marking lead-in wire), and identify this mobile object point
m kprocessed; Loop variable i cumulative 1 will be put, forward 2 to);
When the ray rotated
rencounter first untreated mobile object point, and when ray having multiple (be provided with q) untreated mobile object point, first to this q press with
l idistance sort from small to large, be designated as
m k1,
m k2...,
m kq.Respectively will
m k1,
m k2...,
m kqwith
l i,
l i+1...,
l i+q-1be mapped (namely
m k1,
m k2...,
m kqcorresponding mobile object with
l i,
l i+1...,
l i+q-1one-to-one relationship set up by corresponding annotation frame), do
m k1with
l i,
m k2with
l i+1...,
m kqwith
l i+q-1line (i.e. q bar mark lead-in wire), and identify this q mobile object point
m k1,
m k2...,
m kqprocessed.To work as the i-th+q indicia framing as current pending indicia framing, the value by i is revised as (i+q), turns back to 2);
When annotation frame is in other sides, implementation procedure is identical, and the sense of rotation of ray and starting position can set according to concrete avris, when being on the left of map sheet, after end points makes a ray vertically upward, rotate ray in the direction of the clock; When being on the upside of map sheet, by counterclockwise rotating ray after end points makes level ray left; When being on the downside of map sheet, after end points makes level ray left, rotate ray in the direction of the clock.
In general lead-in wire connection procedure, if the ray that each indicia framing is made, rotate the unmarked mobile object point encountered and only have one, so, the mark lead-in wire on this map there will not be crossing situation.
(6) according to the corresponding relation that above-mentioned (5) are set up, annotation text strings is inserted in corresponding annotation frame.Corresponding and the only corresponding mobile object of each annotation frame, in electronic chart, the key element of each mobile object is all with attribute, and the annotation text strings content of annotation frame is determined by the mobile object attribute of its correspondence.
(7) if user's interrupt procedure, terminate this flow process, otherwise enter (8).
(8) when the position of mobile object changes, forward to (5), regenerate lead-in wire, insert annotation text strings.Along with the change of time, on figure, mobile object is also dynamic change to the lead-in wire of annotation frame.
The above, be only that specific embodiment of the invention case is described, and be not used to limit of the present invention can practical range, such as all equivalences that those skilled in the art complete under the spirit do not departed from indicated by the present invention and principle change or modify, and must be covered by the scope of the claims in the present invention.
Claims (5)
1. the dynamic label placement method of mobile object on electronic chart, is characterized in that, comprise following steps:
Step 1, is loaded into map datum, determines the max cap. of annotation frame place map sheet avris and annotation frame;
Step 2, the max cap. based on annotation frame chooses mobile object to be marked, determines the size that all annotation frames are unified;
Step 3, according to mobile object location to be marked, determines the one-to-one relationship of annotation frame and mobile object, and goes between and to be coupled together by corresponding with it for mobile object annotation frame; Implementation is as follows,
Step 3.1, is provided with n annotation frame, and the mid point that the near side in distance map sheet center got by each annotation frame is the end points doing with mobile object to go between, and endpoint location is used
l irepresent, i is annotation frame numbering, i=1,2 ..., n; Mobile object position to be marked is designated mobile object point
m k, k=1,2 ..., n; Loop variable i is set, and initialize i=1;
Step 3.2, if i is greater than n, enters step 4, otherwise enters step 3.3;
Step 3.3, finds corresponding mobile object point based on i value,
l ifor the end points of current pending annotation frame, from
l imake a ray
rrotate,
When the ray rotated
rencounter first and only have a untreated mobile object point
m ktime, will
m kwith
l ibe mapped, do
l iwith
m klead-in wire, and identify mobile object point
m kprocessed; Loop variable i cumulative 1 will be put, forward step 3.2 to;
When the ray rotated
rencounter first untreated mobile object point, and when ray having multiple untreated mobile object point, if ray there be q unlabelled mobile object point, first to this q mobile object press with
l idistance sort from small to large and be designated as successively
m k1,
m k2...,
m kq, then respectively will
m k1,
m k2...,
m kqwith
l i,
l i+1...,
l i+q-1be mapped, do
m k1with
l i,
m k2with
l i+1...,
m kqwith
l i+q-1lead-in wire, and identify this q mobile object point
m k1,
m k2...,
m kqprocessed; To work as the i-th+q indicia framing as current pending indicia framing, the value by i is revised as i+q, turns back to step 3.2;
Step 4, according to the one-to-one relationship of annotation frame and mobile object, inserts the text strings of each mobile object in annotation frame;
Step 5, after mobile object location upgrades, is back to step 3, redefines the corresponding relation of mobile object and annotation frame and insert annotation text strings.
2. the dynamic label placement method of mobile object on electronic chart according to claim 1, it is characterized in that: in described step 1, annotation frame place map sheet avris is the left side of map sheet or right side or upside or downside, when annotation frame place map sheet avris is left side or the right side of map sheet, the text strings of mobile object is transversely arranged in annotation frame; When annotation frame place map sheet avris is upside or the downside of map sheet, text strings longitudinal arrangement in annotation frame of mobile object.
3. the dynamic label placement method of mobile object on electronic chart according to claim 1, it is characterized in that: in described step 1, the max cap. of annotation frame calculates in the following manner,
When text strings is transversely arranged in annotation frame, calculate according to annotation frame minimum constructive height and map sheet altitude gauge the maximum number that annotation frame place map sheet avris can hold annotation frame
n max; Text strings during longitudinal arrangement, calculates according to annotation frame minimum widith and map sheet width gauge the maximum number that annotation frame place map sheet avris can hold annotation frame in annotation frame
n max; Maximum number
n maxcomputing formula is as follows,
N max=INT(
H map/
h min)
Wherein
hmap is map sheet height or width,
hmin is annotation frame minimum constructive height or width, and function INT (x) represents x value round numbers part.
4. the dynamic label placement method of mobile object on electronic chart according to claim 3, it is characterized in that: the size that in described step 2, all annotation frames are unified, the height of annotation frame is referred to when text strings is transversely arranged in annotation frame, in annotation frame, the width of annotation frame during longitudinal arrangement, is referred in text strings, determine that the size implementation that all annotation frames are unified is as follows
If mobile object sum to be marked
n objjust equal
n max, then get
h minfor height or the width of annotation frame; If mobile object sum to be marked
n objbe less than
n max, calculate height or the width of annotation frame
h lab=INT (10*
h map/ (10*
n obj– (
n obj-1))).
5. the dynamic label placement method of mobile object on electronic chart according to claim 1 or 2 or 3 or 4, it is characterized in that: in described step 4, the text strings that each annotation frame is inserted is determined by the attribute of corresponding mobile object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310324246.XA CN103366635B (en) | 2013-07-30 | 2013-07-30 | Method for dynamically marking mobile object in electronic map |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310324246.XA CN103366635B (en) | 2013-07-30 | 2013-07-30 | Method for dynamically marking mobile object in electronic map |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103366635A CN103366635A (en) | 2013-10-23 |
| CN103366635B true CN103366635B (en) | 2015-06-10 |
Family
ID=49367874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310324246.XA Expired - Fee Related CN103366635B (en) | 2013-07-30 | 2013-07-30 | Method for dynamically marking mobile object in electronic map |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103366635B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103970859B (en) * | 2014-04-29 | 2017-04-19 | 杨立法 | Google user map text labeling method based on SVG |
| CN107122093B (en) * | 2017-02-24 | 2020-06-16 | 北京悉见科技有限公司 | Information frame display method and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003004461A (en) * | 2001-06-20 | 2003-01-08 | Matsushita Electric Ind Co Ltd | Device and method for display of electronic map |
| CN101166327A (en) * | 2006-03-31 | 2008-04-23 | 捷讯研究有限公司 | Methods and apparatus for dynamically labeling map objects in visually displayed maps |
| CN101251964A (en) * | 2008-03-26 | 2008-08-27 | 深圳市戴文科技有限公司 | Electronic map interest point marking method, system and equipment |
| CN102289991A (en) * | 2011-09-05 | 2011-12-21 | 武汉大学 | Visual-variable-based automatic classification and configuration method of map lettering |
| CN102298873A (en) * | 2010-06-24 | 2011-12-28 | 科菱航睿空间信息技术有限公司 | Navigation electronic map data storage method and display method based on the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070257903A1 (en) * | 2006-05-04 | 2007-11-08 | Harris Corporation | Geographic information system (gis) for displaying 3d geospatial images with reference markers and related methods |
-
2013
- 2013-07-30 CN CN201310324246.XA patent/CN103366635B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003004461A (en) * | 2001-06-20 | 2003-01-08 | Matsushita Electric Ind Co Ltd | Device and method for display of electronic map |
| CN101166327A (en) * | 2006-03-31 | 2008-04-23 | 捷讯研究有限公司 | Methods and apparatus for dynamically labeling map objects in visually displayed maps |
| CN101251964A (en) * | 2008-03-26 | 2008-08-27 | 深圳市戴文科技有限公司 | Electronic map interest point marking method, system and equipment |
| CN102298873A (en) * | 2010-06-24 | 2011-12-28 | 科菱航睿空间信息技术有限公司 | Navigation electronic map data storage method and display method based on the same |
| CN102289991A (en) * | 2011-09-05 | 2011-12-21 | 武汉大学 | Visual-variable-based automatic classification and configuration method of map lettering |
Non-Patent Citations (3)
| Title |
|---|
| 张圣丽,柯广恒.电子地图动态注记自动配置的方法.《地理空间信息》.2010,第8卷(第1期),81-83. * |
| 赵秀忠,刘修国.电子地图中动态注记方法的研究实现.《小型微型计算机系统》.2001,第22卷(第11期),1399-1401. * |
| 陈长林,魏海平 等.电子地图的自适应注记研究与实现.《测绘科学》.2009,第34卷(第5期),196-198. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103366635A (en) | 2013-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102542901A (en) | Line segment vacuating device for electronic map and method thereof | |
| CN106528762B (en) | Electronic map processing method and processing system for identifying interest points | |
| CN107391753A (en) | A kind of road production vector quantization data automatic creation system and method based on GIS | |
| CN103366635B (en) | Method for dynamically marking mobile object in electronic map | |
| CN104052960A (en) | Camera visual area display method based on electronic map and system thereof | |
| CN104536743A (en) | Map plotting method and system based on Android operating system | |
| CN102419927A (en) | Map road annotating method of navigation terminal | |
| CN104182356B (en) | A kind of EMS memory management process, device and terminal device | |
| CN109857825A (en) | A kind of threedimensional model methods of exhibiting and system | |
| CN103489363B (en) | Electronic mapping system neutral shape element annotation data processing method and system | |
| CN105389381B (en) | A kind of electronic map for city street lamp identifies drawing system and method | |
| CN111190982A (en) | Shared bicycle management method and system based on big data | |
| CN103245331B (en) | Control method of large-scale aerial survey indoor and outdoor integrated system | |
| CN105844680A (en) | Method for collecting onsite surveying and positioning information for rural distribution network designs | |
| CN103852080B (en) | The map-indication method of object and system | |
| CN106898245A (en) | The mask method and device of a kind of writing | |
| CN104079602B (en) | A kind of the Internet space localization method and system based on extension IP agreement | |
| CN103514280B (en) | Method and device for dynamically adding map labels in zoning mode | |
| CN103345769B (en) | Complete trails remote sensing image thematic charting method | |
| CN104408218A (en) | Visual examination method of oil gas pipeline design achievement | |
| CN103872616A (en) | Electronic field terminal system in transmission project | |
| CN107180033A (en) | A kind of electronic map data storage method and device | |
| CN104346771B (en) | A kind of electronic map tiered management approach | |
| CN102568011A (en) | Method for automatically generating digital navigation channel chart according to contour map | |
| CN103310293A (en) | Method and system for calibrating telecommunication pipeline resource data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20180730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |