ProRaster Help – Options Dialog

On this page, you will find general help for the ProRaster product family including links to documentation, instructional videos, and training videos.
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The ProRaster User Guide is available for download as a PDF.

Configuring Options

 Access the Options dialog from the system menu. From here you can modify some of the default behaviour of ProRaster. To return all options back to their standard defaults, hit the “Reset Defaults” button and hit “OK”. 

Note that there are several options associated with matching resources loaded in an MRD to existing resources. The use of all these options is under review and subject to change. 

Save modified algorithms on OK: When you hit “Save and Close” to exit ProRaster the default behaviour is to silently save any modified algorithms that have a known filename. You will also be prompted to save any new algorithms. Check this option to prevent algorithms being silently saved. If checked, you will be prompted to save modified algorithms. 

Save new algorithms on Cancel: When you hit “Cancel” to exit ProRaster you will be prompted to save any modified algorithms. By default, new and unsaved algorithms will be silently discarded. Check this option to prevent discarding new algorithms. You will be prompted to save them. 

Application window always on top: When you have undocked external map windows, check this option to keep ProRaster on top of these map windows. By default, the main dialog can be obscured by external map windows. 

Raster source relative path rule: An MRD file will contain references to files on disk. You can choose to write file names as absolute paths or relative paths. An absolute path contains the drive, folder and file name and extension. A relative file name contains a path that is relative to the location of the MRD file. If you choose an absolute path, then your algorithm will become invalid if the files it depends upon are moved. On the other hand, you can move your algorithm and it will remain valid. If you choose a relative path then, if you keep your algorithms and data packaged together, you can move them about, and the algorithms will remain valid. 

This option refers to the rasters listed in raster source definitions. Choose “Absolute” to write absolute paths. Choose “Relative to drive” to write a relative path if the data is on the same drive as the MRD, or absolute otherwise. This is the default. Choose “Relative to folder” to write a relative path if the data is in the same folder as the MRD, or in a folder subordinate to it, or absolute otherwise. 

Color table relative path rule: This option refers to color table files. These are generally located in system directories. You may also create unique color tables for projects and store them with the project data. . Choose “Absolute” to write absolute paths. Choose “Relative to drive” to write a relative path if the data is on the same drive as the MRD, or absolute otherwise. Choose “Relative to folder” to write a relative path if the data is in the same folder as the MRD, or in a folder subordinate to it, or absolute otherwise. This is the default. 

Raster cache size: All raster data is stored in memory, at least temporarily, in a tile cache. It is faster to retrieve raster data from the cache than to reload it from disk. ProRaster keeps raster data in the cache as long as possible to maximise performance. Set the cache size to Small, Medium, or Large. Small sets the cache size to the maximum of 512MB or 25% of free memory. Medium sets the cache size to 1024MB or 50% of free memory. Large sets the cache size to 2048MB or 87.5% of free memory. 

Never render using filtering: Force the GPU rendering engine to use nearest neighbour sampling for bitmaps. 

Always render using filtering: Force the GPU rendering engine to use bilinear sampling for bitmaps. 

Match raster source by content: Deprecated. 

Match raster source by content and raster: Under review. 

Match internal raster source by content: Under review. 

User resources are local: Deprecated. 

Forget recently accessed algorithms: Clears the list of recently accessed MRD files, which normally appear on the Open menu button. 

Reset defaults: Reset all options back to their default values. Hit OK to save the changes.