MapPackageImageFormat Enumeration
Specifies the format of the raster tiles in a MapPackage.
NuGet/Assembly: Carmenta.Engine.5.16.2.nupkg (in the CEDataSets assembly)
Syntax
public enum MapPackageImageFormatValues
| Value name | Value | Description |
|---|---|---|
| Auto | 0 | Indicates that a suitable image format should be selected automatically. |
| Png | 1 | Indicates that the PNG image format should be used. |
| Jpeg | 2 | Indicates that the JPEG image format should be used. |
Remarks
When writing raster data to a GeoPackage, one has to choose what image format to use to get the desired balance of image quality and file size.
PNG results in the highest quality and JPEG will usually result in the smallest file size. To get the best possible image quality, and to get full support for transparency, choose Png.
JPEG will usually result in smaller files but may have lower image quality and cannot contain transparency. To get the smallest possible GeoPackage, choose Jpeg, but keep in mind that it may cause artifacts in the form of black borders around image tiles due to the lack of support for transparency in the JPEG image format.
Auto is usually the best option. It will automatically choose PNG or JPEG for each raster tile that is written. It uses PNG whenever there are transparent pixels in the raster, ensuring that there are no black borders around raster data, and otherwise uses JPEG to make the file size smaller.
Platforms
Windows, Linux, Android