

Depending on the requirements of the map, this may be unacceptable. For example, using antialiasing can reduce drawing performance. Right: ArcMap.ĪrcGIS Pro is capable of applying antialiasing to alleviate the effects of the changed appearance, but there are some cases in which antialiasing is not the best option. An example of aliasing due to more precise rendering is shown. This is especially evident in line symbology. However, if the map's symbology was originally designed in ArcMap, the appearance may be different in ArcGIS Pro. In ArcGIS Pro, there is a significant difference between 2.6 points (left) and 1.9 points (right). This results in greater accuracy of feature placement and symbology. In ArcGIS Pro, the drawing engine can use subpixel coordinates to place and draw features on the map. In ArcMap at 96 dpi, there's no visible difference between these two line symbols at 2.6 points (left) and 1.9 points (right).

Lines whose sizes are less than one pixel at a given zoom level or display extent round up to one pixel. This can result in some inaccuracies, particularly in the case of very thin lines or lines with very thin elements, such as cased lines. If the real coordinate of a feature (for instance, a line or a marker) does not lie exactly on that integer coordinate, it rounds up or down. In ArcMap, elements of the on-screen display are specified with integer coordinates. Right: ArcGIS Pro with font antialiasing set to Force. In ArcGIS Pro, these settings are configured within the application's options.īecause the ArcGIS Pro drawing engine uses a different method of enabling text and character antialiasing, and the algorithms used to execute this antialiasing are different, the text rendering and character markers may exhibit some differences when compared with the ArcMap display. Font smoothing settings vary between operating systems. These settings are set per user and are not configured as part of the application. In ArcMap, text and character marker antialiasing is controlled by the font smoothing settings configured in the machine's display settings. The following sections describe some of these differences in drawing and why they occur.

ArcGIS Pro (right) includes features such as antialiasing to improve appearance.īecause this drawing engine is different from the drawing engine used in ArcMap, there are important differences in the appearance of a map drawn in ArcGIS Pro when imported. ArcGIS Pro uses a high-performance drawing engine to ensure maps and scenes draw quickly with smooth symbols and text.
