CN101894393B - Method for putting Flash hot points in three-dimensional space - Google Patents
Method for putting Flash hot points in three-dimensional space Download PDFInfo
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- CN101894393B CN101894393B CN2010102255492A CN201010225549A CN101894393B CN 101894393 B CN101894393 B CN 101894393B CN 2010102255492 A CN2010102255492 A CN 2010102255492A CN 201010225549 A CN201010225549 A CN 201010225549A CN 101894393 B CN101894393 B CN 101894393B
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- point
- flash
- focus
- trace point
- coordinate
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Abstract
The invention relates to a method for putting Flash hot points in a three-dimensional space, which comprises the following steps: converting the coordinate point of a track point in the three-dimensional space to a two-dimensional coordinate point according to the position, focus and angle of a camera; adhering a Flash hot point at the two-dimensional coordinate point of the track point; rendering the three-dimensional scene containing the Flash hot point; and not rendering the Flash hot point when the distance between the position of the camera and the track point excesses a threshold A.
Description
Technical field
The present invention relates to the method that a kind of three-dimensional scenic is made, the method that particularly a kind of focus is put.
Technical background
The Flash that Adobe company produces has captured the half of the country in browser video playback market rapidly with its characteristics that are simple and easy to usefulness.Because mostly web page browsing is the plane and shows; Therefore the more considerations of the focus setting among the Flash is that focus distributes on the plane; If it is different that the method for focus is set in the utilization Flash technology then can run into such as the problem of blocking, following the tracks of in three-dimensional scenic, this and existing two-dimensional scene.
Summary of the invention
In view of this, the method that the object of the present invention is to provide a kind of Flash focus to put at three dimensions.Can let the Flash focus reasonably be arranged in the three-dimensional scenic.
In order to achieve the above object, the method that a kind of Flash focus of the present invention is put at three dimensions, it comprises:
Convert the trace point coordinate points in the three dimensions into the two-dimensional coordinate point according to camera position, focal length and angle;
With the two-dimensional coordinate place of Flash focus attached to said trace point;
The three-dimensional scenic that will comprise the Flash focus is played up;
When said camera position and trace point distance surpasses threshold value A, said Flash focus is not played up.
Further, saidly convert the trace point coordinate points in the three dimensions into two-dimensional coordinate point step according to camera position, focal length and angle and comprise:
According to camera position, focal length and angle to the projection on the planar range that display can show of the trace point in the three dimensions;
Set up coordinate system on the planar range that can show with display; With
Write down the coordinate figure of trace point in said coordinate system range in the said three dimensions.
Further, said the two-dimensional coordinate place step of Flash focus attached to said trace point comprised:
Obtain the two-dimensional coordinate of Flash focus central point; With
The two-dimensional coordinate of said Flash focus central point is updated to the two-dimensional coordinate point of said trace point or the point in the certain limit around it.
Further, said when said camera position and trace point distance surpasses threshold value A, said Flash focus is not played up step and comprise:
Calculate the space length B of said camera position and said trace point;
With said space length B and a threshold value A relatively, as space length B during, said Flash focus is not played up greater than threshold value A.
The method that the present invention provides a kind of Flash focus to put at three dimensions realizes hotspot tracking through in two-dimensional layer, following the tracks of three-dimensional point, has solved the occlusion issue in the three dimensions through distance optimization, and realization Flash focus is placed at three-dimensional scenic.
Description of drawings
The process flow diagram of Fig. 1 a kind of embodiment of method that to be a kind of Flash focus of the present invention put at three dimensions.
Embodiment
Please referring to shown in Figure 1, the invention provides the method that a kind of Flash focus is put at three dimensions, it may further comprise the steps:
The method that said three dimensions mid point coordinate conversion is the two-dimensional points coordinate is: according to camera position, focal length and angle to some projection on the planar range that display can show in the scene; Set up coordinate system on the planar range that can show with display, write down in the said scene some coordinate figure in coordinate system range.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement etc., all should be included within protection scope of the present invention.
Claims (4)
1. method that the Flash focus is put at three dimensions, it comprises:
Convert the trace point coordinate points in the three dimensions into the two-dimensional coordinate point according to camera position, focal length and angle;
With the two-dimensional coordinate place of Flash focus attached to said trace point;
The three-dimensional scenic that will comprise the Flash focus is played up;
When said camera position and trace point distance surpasses threshold value A, said Flash focus not to be played up, said Flash focus can be along with appearing in the picture selectively with the variation of the relative position of camera.
2. method according to claim 1 is characterized in that, saidly converts the trace point coordinate points in the three dimensions into two-dimensional coordinate point step according to camera position, focal length and angle and comprises:
According to camera position, focal length and angle to the projection on the planar range that display can show of the trace point in the three dimensions;
Set up coordinate system on the planar range that can show with display; With
Write down the coordinate figure of trace point in said coordinate system range in the said three dimensions.
3. method according to claim 1 is characterized in that, said the two-dimensional coordinate place step of Flash focus attached to said trace point is comprised:
Obtain the two-dimensional coordinate of Flash focus central point; With
The two-dimensional coordinate of said Flash focus central point is updated to the two-dimensional coordinate point of said trace point or the point in the certain limit around it.
4. method according to claim 1 is characterized in that, and is said when said camera position and trace point distance surpasses threshold value A, said Flash focus do not played up step and comprises:
Calculate the space length B of said camera position and said trace point;
With said space length B and a threshold value A relatively, as space length B during, said Flash focus is not played up greater than threshold value A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102255492A CN101894393B (en) | 2010-07-09 | 2010-07-09 | Method for putting Flash hot points in three-dimensional space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102255492A CN101894393B (en) | 2010-07-09 | 2010-07-09 | Method for putting Flash hot points in three-dimensional space |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101894393A CN101894393A (en) | 2010-11-24 |
| CN101894393B true CN101894393B (en) | 2012-04-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102255492A Expired - Fee Related CN101894393B (en) | 2010-07-09 | 2010-07-09 | Method for putting Flash hot points in three-dimensional space |
Country Status (1)
| Country | Link |
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| CN (1) | CN101894393B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112734628B (en) * | 2020-12-30 | 2023-06-09 | 威创集团股份有限公司 | Projection position calculation method and system for tracking point after three-dimensional conversion |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052108A (en) * | 2007-03-21 | 2007-10-10 | 林羽明 | Device and method for displaying cartoon menu |
| CN101635054A (en) * | 2009-08-27 | 2010-01-27 | 北京水晶石数字科技有限公司 | Method for information point placement |
| CN101763607A (en) * | 2008-12-25 | 2010-06-30 | 上海杰图软件技术有限公司 | Online exhibition platform system constructed by using panoramic electronic map and construction method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7995863B2 (en) * | 2004-05-04 | 2011-08-09 | AgentSheets, Inc. | Diffusion-based interactive extrusion of two-dimensional images into three-dimensional models |
| EP2084671A4 (en) * | 2006-10-02 | 2011-02-09 | Aftercad Software Inc | Method and system for delivering and interactively displaying three-dimensional graphics |
-
2010
- 2010-07-09 CN CN2010102255492A patent/CN101894393B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052108A (en) * | 2007-03-21 | 2007-10-10 | 林羽明 | Device and method for displaying cartoon menu |
| CN101763607A (en) * | 2008-12-25 | 2010-06-30 | 上海杰图软件技术有限公司 | Online exhibition platform system constructed by using panoramic electronic map and construction method thereof |
| CN101635054A (en) * | 2009-08-27 | 2010-01-27 | 北京水晶石数字科技有限公司 | Method for information point placement |
Non-Patent Citations (2)
| Title |
|---|
| SVEN HAVEMANN 等.The Arrigo Showcase Reloaded—Towards a Sustainable Link between 3D and Semantics.《ACM Journal on Computing and Cultral Heritage》.2009,第2卷(第1期), * |
| 周晓莺 等.商务网站商品三维展示的构造策略.《常熟理工学院学报(自然科学)》.2010,第24卷(第4期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101894393A (en) | 2010-11-24 |
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Granted publication date: 20120425 Termination date: 20130709 |