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* <p> |
* <p> |
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* A VobScene encapsulates three separate systems: simple and orthogonal |
* A VobScene encapsulates three separate systems: simple and orthogonal |
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* coordinate systems, coordinate system mathing and coordinate systems |
* coordinate systems, coordinate system mathing and coordinate systems |
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* mapping to vobs. These systems are used to control the |
* mapping for vobs. These systems are used to control the |
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* main canvas called screen. VobScene can be used to make child coordinate |
* main canvas called screen. VobScene can be used to make child coordinate |
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* systems to this main canvas or to the coordinate system already made. |
* systems to this main canvas or to the coordinate system already made. |
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* So, all coordinate systems have parent coordinate system which is screen or |
* So, all coordinate systems have parent coordinate system which is screen or |
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* in the scene/screen/main canvas with <i>coordinate systems</i> given. |
* in the scene/screen/main canvas with <i>coordinate systems</i> given. |
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* <p> |
* <p> |
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* One important thing with one coordinate system is that they are |
* One important thing with one coordinate system is that they are |
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* new coordinate systems which origin(0,0) is in up-left corner and point(1,1) is |
* systems which origin(0,0) is in up-left corner and point(1,1) is |
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* in down-right corner. |
* in down-right corner. |
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* <p> |
* <p> |
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* A VobScene is somewhat like a scene graph but has some rather special features. |
* A VobScene is somewhat like a scene graph but has some rather special features. |