CN110737372A - newly-added primitive operation method and system for electronic whiteboard and electronic whiteboard - Google Patents
newly-added primitive operation method and system for electronic whiteboard and electronic whiteboard Download PDFInfo
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- CN110737372A CN110737372A CN201910865693.3A CN201910865693A CN110737372A CN 110737372 A CN110737372 A CN 110737372A CN 201910865693 A CN201910865693 A CN 201910865693A CN 110737372 A CN110737372 A CN 110737372A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
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Abstract
The invention discloses a method for adding new primitives for an electronic whiteboard, which comprises the steps of firstly setting a -th layer and a second layer in a scene after obtaining the new primitives, setting the second layer to be positioned on a -th layer, then sequentially drawing the existing primitives in the scene into a -th layer according to the original positions in the scene and the sequence from small to large of a z value, drawing the new primitives into the second layer, finally editing the selected primitives, storing the information of the new primitives after the editing is finished, deleting a -th layer and the second layer, and redrawing all the primitives into the scene.
Description
Technical Field
The invention relates to electronic whiteboard drawing methods, in particular to new primitive operation methods and systems for an electronic whiteboard and the electronic whiteboard.
Background
The electronic whiteboard can relate to the operation of newly added primitives in the using process, a user can adjust the position or the size of the newly added primitives after adding the newly added primitives, the adjusted newly added primitives are updated in a scene, and all the primitives can be refreshed in the scene refreshing process under the condition that other primitives exist in the scene.
Disclosure of Invention
The invention aims to solve the technical problem that new primitive operation methods, systems and electronic whiteboards for electronic whiteboards are provided, wherein the new primitive operation methods, the systems and the electronic whiteboards are smooth in operation and are not influenced by the number of primitives in a scene.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
A new primitive operation method for electronic whiteboard, comprising the following steps:
1) acquiring a newly added primitive;
2) creating th layer and a second layer in the scene, setting the second layer on th layer, drawing original primitives in the scene in th layer in sequence, and drawing newly added primitives in the second layer;
3) responding to the operation of editing the newly added graphic primitive by the user, entering into a step when the user edits the newly added graphic primitive, and otherwise, ending the operation;
4) and updating the edited newly added graphic element in the second layer, and storing the edited newly added graphic element.
Preferably, step 4) is followed by step 5) of deleting th layer and the second layer, reading all stored primitives, and redrawing all the primitives in sequence in the scene.
Preferably, the drawing in step 2) and step 5) is specifically: and sequentially drawing all the primitives according to the sequence of the small z value to the large z value, wherein the primitive with the large z value covers the intersection part of the primitive with the small z value in the drawing process, and the z value is the layer coordinate value of the primitive.
Preferably, the obtaining of the newly added primitive in step 1) specifically includes: and responding to the operation of selecting the newly added graphic primitive by the user, and setting the information of the newly added graphic primitive to enable the newly added graphic primitive to be positioned on other graphic primitives, wherein the information of the newly added graphic primitive comprises the z value of the newly added graphic primitive.
Preferably, step 4) comprises the steps of:
4.1) storing the adjusted newly added graphic primitive into a buffer area;
4.2) reading the newly added graphic primitive stored in the buffer area, and updating the edited newly added graphic primitive in the second layer;
4.3) returning to the step 4.1) until the adjustment is finished;
4.4) releasing the buffer area, and storing the edited newly-added graphic element in the storage area.
The present invention also provides a system for operating newly added primitives for an electronic whiteboard, comprising a computer device programmed or configured to perform the steps of the method for operating newly added primitives for an electronic whiteboard described above.
The present invention also provides a system for operating newly added primitives for an electronic whiteboard, comprising a computer device having a storage medium storing a computer program programmed or configured to perform the method for operating newly added primitives for an electronic whiteboard.
The invention also provides kinds of new primitive operating systems for electronic whiteboard, including:
a newly added primitive obtaining program unit for obtaining newly added primitives;
the layer drawing program unit is used for building an th layer and a second layer in the scene, setting the second layer on the th layer, drawing original primitives in the scene in the th layer in sequence, and drawing the newly added primitives in the second layer;
and the newly added primitive editing program unit is used for responding to the operation of editing the newly added primitive by the user, updating the edited newly added primitive in the second layer when the user edits the newly added primitive, and storing the edited newly added primitive.
The invention also provides electronic whiteboards, which comprises an electronic whiteboard body with a microprocessor and a memory, wherein the microprocessor is programmed or configured to execute the steps of the new primitive operation method for the electronic whiteboard, or the memory is stored with a computer program programmed or configured to execute the new primitive operation method for the electronic whiteboard.
The present invention also provides computer readable storage media, wherein the computer readable storage media has stored thereon a computer program programmed or configured to execute the above-mentioned method for operating new primitives for an electronic whiteboard.
Compared with the prior art, the invention has the advantages that:
according to the method, the th layer and the second layer are arranged on a scene, original primitives are drawn in the th layer, the primitives with different levels in the scene are located in the same layers, the new primitives are drawn in the second layer, in the subsequent editing process of the new primitives, a user edits the new primitives every times, only the th layer and the second layer are required to be respectively refreshed, which is equivalent to refreshing primitives and graphics, the edited new primitives and the original primitives serving as the background can be displayed in real time, the drawing times are not influenced by the number of the primitives in the scene, the fluency of the operation of the newly-added editing primitives is greatly increased, and the performance requirement is reduced.
Drawings
FIG. 1 is a schematic diagram of a method according to an embodiment of the invention.
FIG. 2 is a flow chart of a method of an embodiment of the present invention.
The figure illustrates 0-1 st primitive, 1-2 nd primitive, 2-3 rd primitive, 3-4 th primitive, 4-5 th primitive, 5-6 th primitive, 6-7 th primitive, 11- th layer, and 12-second layer.
Detailed Description
The invention is further described in conjunction with the drawings and the specific preferred embodiments of the specification, but not intended to limit the scope of the invention.
As shown in fig. 1 and fig. 2, 6 primitives with an original z value of 0 to 5 in a display scene of an electronic whiteboard are sequentially named as a 1 st primitive 0 to a 6 th primitive 5, and the operation method for adding a 7 th primitive 6 in the display scene for the electronic whiteboard of the present invention includes the following steps:
1) after a user selects the 7 th primitive 6 through input equipment such as a mouse, a keyboard and the like, the electronic whiteboard responds to user operation to acquire the 7 th primitive 6 information, such as primitive types, sizes, coordinate positions and the like;
in step 1) of this embodiment, information of the 7 th primitive 6 is also set, so that the 7 th primitive 6 is located above the 1 st primitive 0 to the 6 th primitive 5, the set information of the 7 th primitive 6 includes a z value of the 7 th primitive 6, that is, a layer coordinate value of the primitive, and in this embodiment, the z value of the 7 th primitive 6 is set to 6.
2) As shown in an example S1 in fig. 1, a layer 11 and a second layer 12 are newly created in a scene, the layer 11 is named a scene layer, the second layer 12 is named an insertion layer, the insertion layer is made above the scene layer in a hierarchical relationship where a user' S sight line faces an electronic whiteboard display screen, original 1 st primitive 0 to 6 th primitive 5 in the scene are sequentially drawn in the scene layer, and the 7 th primitive 6 is drawn in the insertion layer;
in step 2) of this embodiment, the step of sequentially drawing specifically includes sequentially drawing all the primitives according to the order of the z values from small to large, and the primitive with the large z value covers the intersection part of the primitives with the small z value in the drawing process. Through the processing step, the original graphic primitive in the scene is positioned in the scene layer and is used as the composition part of the graph in the layer, and the graph composed of the 1 st to 7 th graphic primitives 6 can be refreshed by refreshing the scene layer and the insertion layer, so that the refreshing times are reduced, and the drawing efficiency is improved.
3) As shown in an example S2 in fig. 1, when the user continues to perform an editing operation on the 7 th primitive 6 through an input device such as a mouse, a keyboard, and the like, for example, a button of the mouse or the keyboard is kept pressed, an editing button in the electronic whiteboard is clicked, or an editing command is input, and the electronic whiteboard responds to the operation of the user for editing the newly added primitive and enters a next step , otherwise, the operation is ended;
4) as shown in example S3 in fig. 1, the electronic whiteboard updates the edited 7 th primitive 6 in the insertion layer, and saves the edited 7 th primitive 6, including the following steps:
4.1) after a user edits the 7 th primitive 6 through input equipment such as a mouse, a keyboard and the like, for example, the size of the 7 th primitive 6 is changed, the position of the 7 th primitive 6 is changed and the like, the electronic whiteboard stores the edited 7 th primitive 6 information in real time, and the stored position can be a memory, a magnetic disk or a flash memory;
4.2) reading the saved edited 7 th primitive 6 information, namely reading the 7 th primitive 6 information saved in a disk buffer area, erasing the primitives in the insertion layer, and then updating the edited 7 th primitive 6 in the insertion layer so as to realize real-time display of an editing result, wherein a user can see the edited 7 th primitive 6 in size and position to be displayed in a scene in real time;
4.3) returning to the step 4.1) to process the next times of editing operation of the user until the user finishes adjusting the 7 th graphic element 6;
4.4) releasing the cache area, storing the edited 7 th primitive 6, wherein the stored position can be a memory, or a disk or a flash memory, and all data can be cleared after the memory is powered off, so that the flash memory has higher cost and smaller storage space.
Through the processing, in the method of the embodiment, after the 7 th primitive 6 is newly added, two layers which are sequentially overlapped are established on the scene, namely, the scene layer for drawing the original primitive in the scene and the insertion layer for drawing the 7 th primitive 6, so that the original primitive in the scene is positioned in the same layer and is used as a component of the graph in the scene layer, no matter how many primitives are in the scene, in the process of editing the newly added primitive, the scene layer and the insertion layer are only required to be refreshed after each editing, the graph formed by each primitive can be refreshed, the same effect of refreshing each primitive is obtained, the refreshing times are reduced, the performance requirement is reduced, and the machine runs smoothly.
In this embodiment, after the above-mentioned processing, the primitives newly added and edited by the user are updated and stored in the storage area, at this time, the scene layer and the insertion layer may be retained in the scene, when the user needs to add a new primitive, the user operates to read the information of all the stored primitives and obtain the information of the newly added primitive, erase the graphics in the scene layer, redraw the original primitives in the scene layer in sequence, erase the original primitives in the insertion layer, draw the newly added primitive in the insertion layer, and then perform the operations of step 3) and step 4) of the method of this embodiment, the operations of step 1) to step 4) of the method of this embodiment may also be performed by deleting the scene layer and the insertion layer, reading all the stored primitives, redrawing all the primitives in the scene layer in sequence, and then wait for the editing operation of the newly added primitive by the user, when the newly added primitive by the user, the operations of step 1) to step 4) of the method of this embodiment are performed in response to the operations of the newly added primitive by the user, the two processing modes, the display effect is not different in that the case that the newly added primitive is performed in the mode of deleting the newly added primitive, when the mouse button is performed in response to the mode of deleting the newly added primitive, the keyboard, the mode of deleting the keyboard, the second mode of deleting the newly added primitive, the keyboard, the method of deleting the newly added primitive, the newly-added primitive, the method of deleting the newly-deleted primitive-described above-mentioned method, the method of deleting the newly-added primitive-deleted primitive.
The present embodiment also provides steps of the method for electronic whiteboard new primitive manipulation, wherein the computer device is programmed or configured to perform the above method for electronic whiteboard new primitive manipulation.
The present embodiment further provides new primitive operating systems for electronic whiteboards, which includes a computer device having a storage medium storing a computer program programmed or configured to execute the new primitive operating method for electronic whiteboards.
This embodiment also provides kinds of newly added primitive operating systems for electronic whiteboard, including:
a newly added primitive obtaining program unit for obtaining newly added primitives;
the layer drawing program unit is used for newly building an th layer 11 and a second layer 12 in the scene, setting the second layer 12 on the th layer 11, drawing original primitives in the scene in the th layer 11 in sequence, and drawing the newly-added primitives in the second layer 12;
and the newly added primitive editing program unit is used for responding to the operation of editing the newly added primitive by the user, updating the edited newly added primitive into the second layer 12 when the user edits the newly added primitive, and storing the edited newly added primitive.
This embodiment also provides electronic whiteboards, which include an electronic whiteboard body having a microprocessor and a memory, wherein the microprocessor is programmed or configured to execute the steps of the new primitive operation method for the electronic whiteboard, or the memory stores a computer program programmed or configured to execute the new primitive operation method for the electronic whiteboard.
The present embodiment also provides computer-readable storage media, wherein the computer-readable storage media stores thereon a computer program programmed or configured to execute the above-mentioned method for operating new primitives for an electronic whiteboard.
The foregoing is considered as illustrative of the preferred embodiments of the invention and is not to be construed as limiting the invention in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1, A new primitive operation method for electronic whiteboard, comprising the following steps:
1) acquiring a newly added primitive;
2) newly building an image layer (11) and a second image layer (12) in the scene, setting the second image layer (12) on the image layer (11), sequentially drawing original primitives in the scene in the image layer (11), and drawing the newly-added primitives in the second image layer (12);
3) responding to the operation of editing the newly added graphic primitive by the user, entering into a step when the user edits the newly added graphic primitive, and otherwise, ending the operation;
4) and updating the edited newly added graphic element in the second layer (12), and storing the edited newly added graphic element.
2. A new primitive operation method for electronic whiteboard according to claim 1, wherein step 4) is followed by step 5) of deleting the layer (11) and the second layer (12), reading all stored primitives, and redrawing all primitives in sequence in the scene.
3. The method for operating the newly added primitive for the electronic whiteboard according to claim 2, wherein the drawing in the step 2) and the step 5) specifically comprises: and sequentially drawing all the primitives according to the sequence of the small z value to the large z value, wherein the primitive with the large z value covers the intersection part of the primitive with the small z value in the drawing process, and the z value is the layer coordinate value of the primitive.
4. The method for operating a newly added primitive for an electronic whiteboard according to claim 1, wherein the obtaining of the newly added primitive in the step 1) specifically comprises: and responding to the operation of selecting the newly added graphic primitive by the user, and setting the information of the newly added graphic primitive to enable the newly added graphic primitive to be positioned on other graphic primitives, wherein the information of the newly added graphic primitive comprises the z value of the newly added graphic primitive.
5. A method for operating a newly added primitive for an electronic whiteboard according to claim 1, wherein the step 4) comprises the following steps:
4.1) storing the adjusted newly added graphic primitive into a buffer area;
4.2) reading the newly added graphic primitive stored in the buffer area, and updating the edited newly added graphic primitive in the second graphic layer (12);
4.3) returning to the step 4.1) until the adjustment is finished;
4.4) releasing the buffer area, and storing the edited newly-added graphic element in the storage area.
new primitive operating system for electronic whiteboard, comprising a computer device, characterized in that the computer device is programmed or configured to perform the steps of the new primitive operating method for electronic whiteboard of any of claims 1 to 5.
A new primitive operating system for an electronic whiteboard of the kind 7, , comprising a computer device, wherein the storage medium of the computer device has stored thereon a computer program programmed or configured to perform the method of any of the claims 1-5 for operating new primitives for an electronic whiteboard.
8, A new primitive operating system for electronic whiteboard, comprising:
a newly added primitive obtaining program unit for obtaining newly added primitives;
the layer drawing program unit is used for newly building an th layer (11) and a second layer (12) in the scene, setting the second layer (12) on the th layer (11), drawing original primitives in the scene in the th layer (11) in sequence, and drawing the newly-added primitives in the second layer (12);
and the newly added primitive editing program unit is used for responding to the operation of editing the newly added primitive by the user, updating the edited newly added primitive into the second layer (12) when the user edits the newly added primitive, and storing the edited newly added primitive.
An electronic whiteboard of the kind 9, , comprising a whiteboard body having a microprocessor and a memory, wherein the microprocessor is programmed or configured to perform the steps of the method for operating new primitives for an electronic whiteboard of any of the claims , 1 to 5, or the memory has stored thereon a computer program programmed or configured to perform the method for operating new primitives for an electronic whiteboard of any of the claims .
10, computer-readable storage medium, wherein the computer-readable storage medium has stored thereon a computer program programmed or configured to execute the method for operating new primitives for an electronic whiteboard according to any of claims 1 to 5.
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| CN201910865693.3A CN110737372A (en) | 2019-09-12 | 2019-09-12 | newly-added primitive operation method and system for electronic whiteboard and electronic whiteboard |
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| CN201910865693.3A CN110737372A (en) | 2019-09-12 | 2019-09-12 | newly-added primitive operation method and system for electronic whiteboard and electronic whiteboard |
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| WO2023029243A1 (en) * | 2021-08-30 | 2023-03-09 | 广州市保伦电子有限公司 | Online electronic whiteboard content synchronization and sharing system |
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