Scaling composite shapes for a graphical human-machine interface

摘要

Parameters associated with sub-elements of a composite shape may determine how the sub-element is scaled during resizing of the composite shape. A graphical display editor may use the scaling parameters to calculate various scaling factors that are then applied to the sub-elements of each composite shape during resizing. The editor may apply the scaling parameters to the sub-elements for resizing in one or more axes (e.g., the length, width, and height or X, Y, and Z axes, etc.) to adjust the composite shape for a particular graphical display. The editor may apply the scaling parameters directly to each sub-element to prevent any distortion of those sub-elements. The configured scaling parameters may then be linked to the composite shape so that, at runtime, the parameters are applied to the composite shape and its sub-elements. The scaling parameters may be applied to both composite shapes and animations associated with the composite shapes.

主权项

1. A computer program comprising a non-transitory computer-readable storage medium having a computer-readable program code embodied therein, the computer-readable program code adapted to be executed to implement a method for scaling composite shapes for an operator display in a process control system for use in a process plant, the method comprising:
displaying a composite shape that graphically illustrates an entity within the process plant, the composite shape including a sub-element having an unscaled parameter and a scaling parameter, wherein each scaling parameter includes values that each correspond to a dimension of the sub-element and define a resizing behavior of a corresponding sub-element; resizing the composite shape and the composite shape sub-element in one or more dimensions; calculating a scaling factor for each resized dimension of the composite shape, wherein the scaling factor for each resized dimension of the composite shape is a ratio between the unscaled parameter of the sub-element corresponding to the resized dimension of the composite shape and the resized dimension of the composite shape; determining the resizing behavior for the sub-element based on the values of the sub-element scaling parameter; and applying the calculated scaling factor to each sub-element unscaled parameter according to the determined resizing behavior, wherein each resizing behavior determines how the calculated scaling factor is applied directly to each sub-element to prevent distortion of the sub-element resulting from resizing the composite shape and the sub-element in one or more dimensions, and the unscaled parameter corresponds to the resized dimension.