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| 국가/구분 | United States(US) Patent 등록 |
|---|---|
| 국제특허분류(IPC7판) |
|
| 출원번호 | US-0126163 (1993-09-22) |
| 발명자 / 주소 |
|
| 출원인 / 주소 |
|
| 인용정보 | 피인용 횟수 : 361 인용 특허 : 0 |
A system and method for providing attribute nodes in a data flow diagram which allow a user to programmatically access various parameters of a control or indicator. In this manner, a user can programmatically make changes that affect the output or appearance of controls and indicators. A user can al
A system and method for providing attribute nodes in a data flow diagram which allow a user to programmatically access various parameters of a control or indicator. In this manner, a user can programmatically make changes that affect the output or appearance of controls and indicators. A user can also access these parameters interactively during execution of a block diagram. A user can creates an attribute node containing one or more attributes corresponding to controls that affect a parameter of the control, such as the color used for the respective display, the visibility of the control, the scales or cursor position for respective graphs or charts, etc. The purpose of an attribute node is to affect the visual output of a control provided on the front panel depending on events which occur during execution of a VI or on user input during execution of a VI. An attribute node thus allows the execution subsystem to monitor user interaction by reading attribute data that previously was not available to the program. An attribute node allows two types of operations, these being reading an attribute node or writing to an attribute node. These operations of reading and writing an attribute node can be performed either by a block diagram during execution, wherein the user has programmed the block diagram to perform this function, or interactively by the user during execution. The process of writing to an attribute node refers to the execution subsystem updating an attribute of a control in the front panel display to reflect an attribute that has been set programmatically in a block diagram. The user can also “write”to an attribute node by providing input to a control in the front panel during execution of a block diagram. Reading an attribute node refers to the execution subsystem reading the value of an attribute for a certain control during block diagram execution that may have been changed by the user, or may have been changed during execution of a VI by the execution subsystem. Reading an attribute also refers to the user viewing changes to the attribute during execution.
A computer implemented method for programmatically affecting an attribute of a control in a data flow program in a computer system including a video screen, means for creating a graphical data flow diagram, and means for creating a panel associated with said data flow diagram for displaying data inp
A computer implemented method for programmatically affecting an attribute of a control in a data flow program in a computer system including a video screen, means for creating a graphical data flow diagram, and means for creating a panel associated with said data flow diagram for displaying data input to and output from said data flow diagram, the method comprising the computer implemented steps of: displaying on the screen a first panel; displaying on the screen a first control which displays data, wherein said first control is comprised in said first panel; displaying on the screen a first function icon that references a function icon control means for controlling a first function; displaying on the screen an attribute node icon associated with said first control, wherein the attribute node icon references an attribute control means for programmatically affecting an attribute of said first control; assembling on the screen a data flow diagram including the first function icon and the attribute node icon, wherein the first function icon is connected to the attribute node icon and wherein the function icon control means provides data to the attribute control means during execution of the data flow diagram, wherein said first panel is associated with said data flow diagram and wherein said first control in said first panel displays input or output data from said data flow diagram; executing the data flow diagram; the function icon control means writing a value to the attribute control means to affect said attribute of said first control during said step of executing; and changing said attribute of said first control after said step of the function icon control means writing said value to the attribute control means to affect said attribute of said first control.
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