CN102521880A - Mars-surface three-dimensional drawing method - Google Patents
Mars-surface three-dimensional drawing method Download PDFInfo
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- CN102521880A CN102521880A CN2011103935799A CN201110393579A CN102521880A CN 102521880 A CN102521880 A CN 102521880A CN 2011103935799 A CN2011103935799 A CN 2011103935799A CN 201110393579 A CN201110393579 A CN 201110393579A CN 102521880 A CN102521880 A CN 102521880A
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Abstract
The invention discloses a Mars-surface three-dimensional drawing method, comprising the following steps of: establishing a digital elevation model and an image model; utilizing the established digital elevation model and the image model to construct a Mars-surface three-dimensional model; utilizing a Mars-surface information database and a deep-space background database to determine surface information of the Mars-surface three-dimensional model, establishing a deep-space background coordinate taking the Mars as the center and determining a time reference point; and according to the longitude and latitude of the determined display point, generating the deep-space background and calculating the light blocking condition including the display point. According to the Mars-surface three-dimensional drawing method, for the Mars detection mode such as 'landing detection' and 'suspending detection', the simulation display for the Mars surface is realized by simulation of the surface characteristics and the environment of the Mars.
Description
Technical field
The present invention relates to a kind of areographic three-dimensional depiction method.
Background technology
Mars exploration surface characteristics 3D simulator is the numerical simulation and the important component part of emulation in early stage of China's deep space mars exploration task, and the detection of Mars is had certain strategic importance.Along with the mars exploration task is about to implement, the Computerized three-dimensional visual simulating technology that is used for mars exploration is more and more popular at space industry.
At present, mars exploration has 3 kinds of patterns, pattern one: around detection, just aircraft is arrived in the Mars sky by plane, at the ring fire track Mars is observed; Pattern two: land and survey, promptly aircraft directly reenters the entering martian surface, surveys at martian surface; Pattern three: be floating empty the detection, after promptly aircraft reenters, in martian atmosphere, observe.
The three-dimensional visualization simulation study of most of space industries all target tightening in spacecraft orbit dynamics simulation aspect; More pay close attention to satellite and track thereof; The STK groupware such as the proposition of AGI company; Its purpose all is to make it image on computer screen and simulation task track process true to nature; Briefly the analog simulation of Mars all is the traditional mode that adopts " task+track ", and this mode more is applicable to pattern one " around surveying ", but " lands and survey " and pattern three " floating empty the detection " with respect to pattern two; This classic method has just been ignored simulation and the emulation to targeted environment (Mars), and this surveys for landing and floating empty the detection brought the hidden danger of can not ignore.
Simultaneously, certain puts certain illumination value constantly on the Mars though present survey of deep space software can calculate, and this value is that being based upon martian surface is on the hypothesis of smooth sphere.And, through the illumination value that calculates, be applied to have in the mars exploration than complex-terrain, particularly under the situation that pattern two " is landed and surveyed " and pattern three " is floated empty the detection ", reference is relatively low.
In addition; Present Mars Mission analogue system; Mostly be to operate through mouse-keyboard, the operator is needed certain operating experience and training, skilled action need is remembered a series of shortcuts and combination button; Be unfavorable for that the operator who is unfamiliar with analogue system searches information rapidly, has reduced the operability of system.
Summary of the invention
Technology of the present invention is dealt with problems and is: the invention provides a kind of areographic three-dimensional depiction method; The present invention is directed to the mars exploration pattern of " land and survey " and " floating empty the detection "; Through simulation, realized showing for the emulation on the Mars face of land to martian surface characteristic and environment thereof.
Technical solution of the present invention is:
A kind of areographic three-dimensional depiction method may further comprise the steps:
S1: utilize areographic imaging data is set up digital elevation model and digitized video model;
S2: according to digital elevation model of setting up among the step S1 and digitized video model construction martian surface three-dimensional model, said martian surface three-dimensional model is used to simulate the martian surface scene, realizes the simulation to martian surface landform three-dimensional scenic;
S3: set up Mars face of land information database and deep space background database according to disclosed chronometer data; Utilize Mars face of land information database that Mars face of land information is added in the martian surface three-dimensional model, said Mars face of land information comprise the Mars place name and with the corresponding longitude and latitude of Mars place name; Utilize the deep space background database set up the deep space background data with areocentric deep space background coordinate system; And confirm as time reference point when Green become to control January 1 2000 time zero;
S4:, confirm the longitude and latitude of display dot at Mars according to the Mars placename-querying Mars face of land information database that will show;
S5: read the Yi Bagu star catalogue in the deep space background database, and according to the longitude and latitude of confirming among deep space background coordinate system of setting up among the step S3 and the step S4, generating with the display dot is the deep space background at center; According to the time reference point of confirming, calculate at the elevation angle and the position angle of T moment display dot with respect to the sun;
S6: with respect to setting up digital elevation model among the elevation angle of the sun and position angle and the step S1, confirm that situation is blocked in the illumination of display dot according to the display dot of confirming among the step S5; And confirm with the display dot to be the longitude and latitude of point around N of center, repeat step S5, S6 and confirm that the illumination of point around limited N blocks situation;
S7: with the display dot of confirming among martian surface three-dimensional model and the step S6 with N around the illumination of point block situation and export and show.
The present invention compared with prior art has following advantage:
(1) the present invention generates the deep space background database through utilizing true chronometer data; Through further utilize the deep space background database set up the deep space background data with areocentric deep space background coordinate system, and finally form the reliability that deep space background that the Mars face of land shows has promoted the rendering results on the Mars face of land.
(2) when the corresponding place of concrete Mars place name is shown; Considered martian surface real terrain blocking to sunray; Utilize digital elevation module and display dot to realize illumination is blocked the calculating of situation, thereby promoted martian surface 3-D view and illumination accuracy thereof with respect to the elevation angle and the position angle of the sun.
(3) when situation is blocked in the illumination of calculation display point, at first only select N limited point of display dot to calculate on every side, when having guaranteed the illumination accuracy, reduced and calculated the calculating pressure that photometric data caused on a large scale.
(4) adopt step of the present invention; Realized martian surface dimensional topography landforms, true starry sky background, truly light conditions describes; Survey and floating empty emulation and the simulation of surveying of martian surface for the martian surface landing, simply and effectively visualization scheme and data solution are provided.
Description of drawings
Fig. 1 is a process flow diagram of the present invention.
Embodiment
Just combine accompanying drawing that the present invention is done further introduction below.
Martian surface characteristic 3D simulator is made up of hardware and software two parts; Wherein hardware system is martian surface characteristic 3D simulator data and the display unit that has been equipped with high data-handling capacity, and its graphics capability is that the three-dimensional visualization demonstration of martian surface characteristic provides sound assurance.Software systems are used to realize computational analysis is carried out in the simulation of martian surface characteristic and environment and the light conditions of treating display dot, confirm background, the face of land and the light conditions of point to be shown and export to hardware system and carry out emulation and show.
Adopting martian surface characteristic 3D simulator user to carry out panorama in the face of the martian surface characteristic through the ground in the Mars browses.
Wherein, the concrete steps that comprise of above-mentioned software systems are following:
S1: set up digital elevation model, digitized video model according to the areographic imaging data that obtains early stage (can be from satellite or other approach).(" GIS-Geographic Information System (GIS) spatial data structure and treatment technology ")
When generating the martian surface three-dimensional model, when same detector during from different perspectives with inswept the same area highly, different digital elevation models and digitized video model will produce certain deviation that influences.Because ground type image is the most obvious in the Mars digitized video, be directly can interpretation, so it also is to receive angle the most easily and the part that causes data type interpretation error.For part that temporarily can't interpretation, make obvious mark, treat that follow-up data improves after, again this zone is further revised and perfect.
S2: digital elevation model and the digitized video model set up according to step S1 make up the martian surface three-dimensional model based on pyramid algorith through orthography.(" GIS GIS-Geographic Information System principle and method ")
When generating the martian surface three-dimensional model,, utilize the suspected sites mark among the step S1 same geographic position image being shown different area of doubt.When the simulation in later stage and emulation, can avoid area of doubt through suspected sites.
S3: set up chronometer data (fixed star, planet, asteroid, comet) Mars face of land information database and deep space background database that International Astronomical Union (IAU) (IAU) and NASA (NASA) announce.Utilize Mars face of land information database to add Mars face of land information for the martian surface three-dimensional model among the step S2.Utilize deep background database set up the deep space background data with areocentric deep space background coordinate system, and confirm as time reference point during with January 1 2000 Greenwich Mean Time zero.(" Celestial Reference System conversion and application thereof ")
S4:, confirm the longitude and latitude of display dot at Mars according to the Mars placename-querying Mars face of land information database that will show.
S5: read the Yi Bagu star catalogue in the deep space background database, and according to the longitude and latitude of confirming among deep space background coordinate system of setting up among the step S3 and the step S4, generating with the display dot is the deep space background at center; According to the time reference point of confirming, calculate at the elevation angle and the position angle of T moment display dot with respect to the sun.(" modern astrodynamics ")
S6: with respect to the martian surface three-dimensional model that generates among the elevation angle of the sun and position angle and the step S3, confirm that situation is blocked in the illumination of display dot with Mars face of land information according to the display dot of confirming among the step S5.
When situation is blocked in the illumination of confirming display dot; With the display dot is the center; Select individual point on every side around the N of display dot; And repeat step S5 and S6 according to the longitude and latitude of N each point and accomplish situation is blocked in the illumination of whole N points, and display dot is blocked situation with N illumination of putting on every side send into step S6;
S7: with the light conditions output of the display dot of confirming among martian surface three-dimensional model and the step S6 and show.
During demonstration,, the martian surface three-dimensional model is described, and added according to comprising display dot and block on the Mars three-dimensional model that situation is reflected in description interior N+1 the illumination of naming a person for a particular job with center, display dot position.
The unspecified part of the present invention belongs to general knowledge as well known to those skilled in the art.
Claims (1)
1. areographic three-dimensional depiction method is characterized in that may further comprise the steps:
S1: utilize areographic imaging data is set up digital elevation model and digitized video model;
S2: according to digital elevation model of setting up among the step S1 and digitized video model construction martian surface three-dimensional model, said martian surface three-dimensional model is used to simulate the martian surface scene, realizes the simulation to martian surface landform three-dimensional scenic;
S3: set up Mars face of land information database and deep space background database according to disclosed chronometer data; Utilize Mars face of land information database that Mars face of land information is added in the martian surface three-dimensional model, said Mars face of land information comprise the Mars place name and with the corresponding longitude and latitude of Mars place name; Utilize the deep space background database set up the deep space background data with areocentric deep space background coordinate system; And confirm as time reference point during with January 1 2000 Greenwich Mean Time zero;
S4:, confirm the longitude and latitude of display dot at Mars according to the Mars placename-querying Mars face of land information database that will show;
S5: read the Yi Bagu star catalogue in the deep space background database, and according to the longitude and latitude of confirming among deep space background coordinate system of setting up among the step S3 and the step S4, generating with the display dot is the deep space background at center; According to the time reference point of confirming, calculate at the elevation angle and the position angle of T moment display dot with respect to the sun;
S6: with respect to setting up digital elevation model among the elevation angle of the sun and position angle and the step S1, confirm that situation is blocked in the illumination of display dot according to the display dot of confirming among the step S5; And confirm with the display dot to be the longitude and latitude of point around N of center, repeat step S5, S6 and confirm that the illumination of point around limited N blocks situation;
S7: with the display dot of confirming among martian surface three-dimensional model and the step S6 with N around the illumination of point block situation and export and show.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928201A (en) * | 2012-10-24 | 2013-02-13 | 北京控制工程研究所 | Target simulating system of dynamic selenographic imaging sensor |
| CN111351506A (en) * | 2020-03-20 | 2020-06-30 | 上海航天控制技术研究所 | Mars visible light target characteristic accurate simulation method based on 3D printing |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950436A (en) * | 2010-09-29 | 2011-01-19 | 中国科学院国家天文台 | Method for manufacturing digital elevation model by using data of laser altimeter |
| JP2011048495A (en) * | 2009-08-25 | 2011-03-10 | Asia Air Survey Co Ltd | Stereoscopic image producing apparatus |
-
2011
- 2011-12-01 CN CN201110393579.9A patent/CN102521880B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011048495A (en) * | 2009-08-25 | 2011-03-10 | Asia Air Survey Co Ltd | Stereoscopic image producing apparatus |
| CN101950436A (en) * | 2010-09-29 | 2011-01-19 | 中国科学院国家天文台 | Method for manufacturing digital elevation model by using data of laser altimeter |
Non-Patent Citations (3)
| Title |
|---|
| P.SAIGER ET AL: "ANALYSIS OF MARS DATA USING ARCOBJECTS AND MODELBUILDING", 《XXIII INTERNATIONAL CARTOGRAPHIC CONFERENCE》 * |
| 史世平: "火星地形侧图", 《中国宇航学会深空探测技术专业委员会第二届学术会议论文集》 * |
| 宋其江等: "基于HLA的深空探测系统仿真平台", 《系统仿真学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102928201A (en) * | 2012-10-24 | 2013-02-13 | 北京控制工程研究所 | Target simulating system of dynamic selenographic imaging sensor |
| CN102928201B (en) * | 2012-10-24 | 2014-12-17 | 北京控制工程研究所 | Target simulating system of dynamic selenographic imaging sensor |
| CN111351506A (en) * | 2020-03-20 | 2020-06-30 | 上海航天控制技术研究所 | Mars visible light target characteristic accurate simulation method based on 3D printing |
| CN111351506B (en) * | 2020-03-20 | 2022-05-24 | 上海航天控制技术研究所 | Mars visible light target characteristic accurate simulation method based on 3D printing |
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