Pitney Bowes MapXtreme - Manual (Page 316)

Chapter 17: Working with Rasters and Grids
Raster Handler Properties
MapXtreme v7.1 323 Developer Guide
There are a few raster formats that we do not support in multi-threaded applications (e.g., in an
ASP.NET application). These formats are as follows:
Raster Handler Properties
MapXtreme invokes raster handlers in alphabetic order, based on the last character in the handler’s
file extension. You can now control the order programmatically with two properties in the
MapInfo.Data.TableRaster class.
The TableInfoRaster.PreferredHandler property specifies which raster handler to use to open a
raster image. The raster engine attempts to use the specified handler to open the raster image. If it
fails, the normal process of invoking handlers alphabetically is followed. If successful, the actual
handler that is used is reported in the new property TableInfoRaster.ActualHandlerUsed.
TIFF.RHL
TIF (.tif) *
VMGRID.RHL
Vertical Mapper (.grd, .grc) †
HALO.RHV BMP, TIF, GIF, TGA, JPEG, PCX
LEADTOOL.RHX BMP, GIF, JPEG, JPEG2000, PNG, TIF, PSD,
WMF, EMF
* Only handler that supports georeferencing for TIF. If another handler that supports TIFF
files is tried before this TIFF handler, you can lose support for Georeferenced TIFF files.
So, to support georeferenced TIFF files, this TIFF handler should be tried before any other
handler that supports TIFF.
† Can be displayed as either grid or raster. The .TAB file determines whether the image
should be drawn using the grid handler or the raster handler.
Raster Handler Raster Format
Read
Vertical Mapper GRD, GRC
JPEG from Halo (The LeadTools JPEG handler is
threadsafe)
TIFF w/jpeg compression from Halo (The LeadTools
TIFF handler is threadsafe)
Export
JPEG 2000 (Win2K only) from LeadTools
TIFF CMYK from LeadTools