Abstract: A method of reducing the size of data representing an image in a graphical display wherein the data comprises triangle strings representing polygons that form the image, includes steps to determine a size of a pixel in the image; compare the size of a pixel in the image to a narrowest dimension of a polygon that encompasses the pixel and determine a number of triangles in a triangle string that represents the polygon. If the narrowest dimension of the polygon is larger than the image size, reducing the number of triangles in the triangle string using triangle decimation and if the polygon is similar to the image size, leaving the number of triangles in the triangle string unchanged.

Abstract: A method of reducing the size of data representing an image in a graphical display wherein the data comprises triangle strings representing polygons that form the image, includes steps to determine a size of a pixel in the image; compare the size of a pixel in the image to a narrowest dimension of a polygon that encompasses the pixel and determine a number of triangles in a triangle string that represents the polygon. If the narrowest dimension of the polygon is larger than the image size, reducing the number of triangles in the triangle string using triangle decimation and if the polygon is similar to the image size, leaving the number of triangles in the triangle string unchanged.

Abstract: A method and system for a required time of arrival (RTA) performance graphic display is provided. The system includes a processor programmed to receive a required time of arrival and a first visual display communicatively coupled to the processor. The first visual display includes an RTA graphic having a dial substantially symmetric about an axis, a first marker indicative of a current estimated time of arrival (ETA) at a predetermined waypoint, a second marker indicative of a value of the RTA relative to the current ETA value and a selected RTA time tolerance value, a first indication representing a first time the vehicle can attain the predetermined waypoint, a second indication representing a last time the vehicle can attain the predetermined waypoint, a third indication representing the uncertainty of the ETA in an early arrival direction, and a fourth indication representing the uncertainty of the ETA in a late arrival direction.

Abstract: A method and system for a required time of arrival (RTA) performance graphic display is provided. The system includes a processor programmed to receive a required time of arrival and a first visual display communicatively coupled to the processor. The first visual display includes an RTA graphic having a dial substantially symmetric about an axis, a first marker indicative of a current estimated time of arrival (ETA) at a predetermined waypoint, a second marker indicative of a value of the RTA relative to the current ETA value and a selected RTA time tolerance value, a first indication representing a first time the vehicle can attain the predetermined waypoint, a second indication representing a last time the vehicle can attain the predetermined waypoint, a third indication representing the uncertainty of the ETA in an early arrival direction, and a fourth indication representing the uncertainty of the ETA in a late arrival direction.