Extended support for numerical controls

• US 6,310,621 B1
• Filed: 06/30/1998
• Issued: 10/30/2001
• Est. Priority Date: 04/03/1998
• Status: Expired due to Term

• Current Assignee: Avid Technology Incorporated
• Original Assignee: Avid Technology Incorporated
• Inventors: Moreau, Sylvain G., Gagne, Rejean, Bouchard, Jean-Claude
• Primary Examiner(s): Brier, Jeffery
• Assistant Examiner(s): YANG, RYAN R
• Application Number:
  US09/107,994
• Time in Patent Office: 1,218 Days
• Field of Search: 345/440, 345/441, 345/433, 345/420
• US Class Current: 345/440
• CPC Class Codes: G06F 3/04847 Interaction techniques to control parameter settings, e.g. interaction with sliders or dials

Abstract

A user-interface (UI) device allows the assignment of multiple parameter values to a multiple-selection of objects through a familiar UI mechanism. A multiple selection of objects is made. A object inspector is opened such as would normally be used to enter single values to be applied to properties of all the selected objects. For example, a group of graphical objects is selected and a line-weight parameter is adjusted to make the lines of the objects heavier. According to the invention, the same type of inspector device may be used to apply multiple values by providing for the indication of a function definition instead of an explicit value in a field normally used to enter a single value. The text boxes normally used for entry of values are provided with the ability to accept symbolic notation, e.g, a string, to indicate value ranges instead ofjust discrete values. The UI is programmed to parse the symbolic definition and generate values for each selected object so that each object receives a value of the selected parameter independently of the other objects. In an example, an indicator of a Gaussian probability function is entered as a string with a mean and variance to specify a range. The objects receive values pseudorandomly so that each may be assigned a different value for the parameter. This avoids the need to separately assign values to a large number of objects.

Claims

1. A method for assigning parameter values to symbols stored in a computer, comprising the steps of:

identifying a group of symbols each having a parameter with a selectable value;

receiving an input that defines a multiple-value symbol, said multiple-value symbol including a string specifying values for said parameter;

applying said multiple-value symbol to said group of symbols such that said parameter of at least two of said symbols have different values as a result of said step of applying.

2. A method as in claim 1, wherein said step of receiving includes invoking a parameter data entry form with fields for entry of numeric data, said fields being such that entry of a single value in a field corresponding to said parameter causes all of said symbols of said group of symbols to be assigned said single value and such that entry of a multiple-value symbol in said field causes at least two of said symbols of said group of symbols to be assigned different values defined by said multiple-value symbol.

3. A method as in claim 1, wherein said symbols are graphical objects.

4. A method as in claim 1, wherein said symbols are animation sequences.

5. A method as in claim 1, wherein step of identifying includes selecting a group of symbols through a user-interface.

6. A method as in claim 1, wherein said step of identifying includes displaying each of said symbols and selecting said group symbols by making a multiple selection.

7. A method as in claim 6, wherein said step of receiving includes invoking a parameter data entry form with fields for entry of numeric data, said fields being such that entry of a single value in a field corresponding to said parameter causes all of said symbols of said group of symbols to be assigned said single value and such that entry of a multiple-value symbol in said field causes at least two of said symbols of said group of symbols to be assigned different values defined by said multiple-value symbol.

8. In a computer user-interface that provides a selection mechanism for multiple-selection of symbols, a parameter adjustment mechanism operatively associated with said selection mechanism that accepts a value for a parameter associated with said symbols, and assigns a single value of said parameter to each of multiple-selected symbols when a single value is accepted, a method for entering multiple values for said parameter such that different values are applied to each symbol of the multiple-selected symbols, comprising the steps of:

making a multiple selection of symbols, whereby multiple-selected symbols are indicated;

accepting in said parameter adjustment mechanism an indicator, indicative of a string of multiple of values;

parsing said indicator into a mathematical function that generates multiple values of values;

assigning a different one of said multiple values to each of said multiple-selected symbols.

9. A method as in claim 8, wherein said parameter adjustment mechanism is a data input form.

10. A method as in claim 8 wherein said step of making a multiple selection includes displaying said symbols.

11. A method as in claim 8 wherein said step of assigning includes replacing a current value of said parameter for each of said multiple-selected symbols with said different one of said multiple values.

12. A method as in claim 8, wherein said step of accepting includes accepting in said parameter adjustment mechanism, an indicator of a range of values, said multiple values being defined by said indicator of a range.

13. A method as in claim 8, wherein said step of accepting includes accepting in said parameter adjustment mechanism, an indicator of a statistical function operable over a range of values, said multiple values being defined by said indicator of a statistical function.

14. A method as in claim 13, wherein said statistical function is a definition of a Gaussian probability density function and said step of assigning includes generating pseudorandom values.

15. A method as in claim 14, wherein said indicator includes an indication of a seed for a random function generator, said step of assigning includes generating said pseudorandom values responsively to said seed.

16. A method for assigning values, through a user-interface of a computer, to a parameter of each of objects, stored in a memory of said computer, comprising the steps of:

making a multiple selection of said objects;

displaying a user-interface control with an input field for entering a value of a parameter of each of said objects, said step of displaying being responsive to said step of making a multiple selection;

entering a symbol in said field, said symbol indicating a value-generating function for generating a string of values;

evaluating said value-generating function iteratively and for each value thereby generated, assigning said each value to a respective one of said objects.

17. A method as in claim 16, further comprising the step of selecting at least one object, displaying said user interface control, entering a single numerical value in said input field, and assigning said single numerical value to said parameter of said at least one object.

18. A method as in claim 16, wherein said value-generating function includes a seed for use in a pseudorandom number generator and said step of evaluating includes generating pseudorandom numbers responsively to said seed.

19. A method as in claim 16, wherein said value-generating function includes an indicator of a predefined seed stored with other seeds in said computer, said seeds being for use in a pseudorandom number generator and said step of evaluating includes generating pseudorandom numbers responsively to said indicator of said predefined seed.