Editing key-indexed geometries in media editing applications

A non-transitory computer readable medium storing a media editing application that when executed by at least one processing unit provides a graphical user interface (“GUI”) for creating media presentations, the GUI comprising:

• to represent values of an attribute of a media content over a duration of time, a key-indexed geometry that spans along the duration and comprises a plurality of movable key indices at different locations along the duration to specify different values of the attribute at the different locations, wherein the change in the values of the attribute between any two key indices is represented with a geometric component connecting the two key indices that reflects the different attribute values of the attribute along the duration, wherein movement of a key index modifies the key-indexed geometry and modifies at least a subset of values of the attribute along said duration;
• for the key-indexed geometry, a collapsed representation that spans along said duration and comprises a plurality of key-index markers at the different locations without the geometric component connect each key indices, each marker having a key index for moving in at least a first direction with the marker to modify the location of the key index along the duration while maintaining the value of the attribute specified by the key index, and moving along the marker in a second direction that is neither parallel nor collinear with the first direction to modify the attribute value specified by the key index while maintaining the location of the key index along the duration;
• and
• at least one control for switching between displaying the key-indexed geometry and the collapsed representation.

A non-transitory computer readable medium storing a media editing application for execution by at least one processing unit of an electronic device, the media editing application comprising sets of instructions for:

• to represent values of an attribute of a media content over a duration of time, displaying a key-indexed geometry in a display area, said key-indexed geometry spanning along the duration and comprises a plurality of movable key indices at different locations along the duration to specify different values of the attribute at the different locations, wherein the change in the values of the attribute between any two key indices is represented with a geometric component connecting the two key indices that reflects the different attribute values of the attribute along the duration;
• receiving an input to collapse the key-indexed geometry in the display area;
• in response to the input, collapsing the key-indexed geometry into a compressed geometry that is displayed in the display area in place of the key-indexed geometry, said compressed geometry spanning along said duration and comprises a plurality of key-index markers at the different locations without the geometric component connect each key indices, each marker having a key index for moving in at least a first direction with the marker to modify the location of the key index along the duration while maintaining the value of the attribute specified by the key index, and moving along the marker in a second direction that is neither parallel nor collinear with the first direction to modify the attribute value specified by the key index while maintaining the location of the key index along the duration;
• and
• receiving an adjustment in the compressed geometry of a key index on a key-index marker, wherein the adjustment modifies the key-indexed geometry and modifies at least a subset of values of the attribute along said duration.