Surfer 20.1

What's new in this version:

New Features and Improvements:
- New Map Type: Peaks and Depressions
- Base Map: use attribute as Object ID for polylines, polygons, points
- Grid Info: Polygon Boundary: report statistics for each polygon individually
- Grid Volume: Polygon Boundary: report volume for each polygon individually
- 3D View: 3D PDF Export: reduce file size
- 3D View: 3D PDF Export: speed up export
- 3D View: add color scale bar
- 3D View: Antialiasing (improve appearance of grid lines, axes, text, etc)
- 3D View: export to VRML
- 3D View: light 3D point symbols (spheres, cubes) based on Environment Light Position
- 3D View: Vector Contours: use same line properties (width, color) as original contour lines
- Automation: add Base from Data
- Automation: add new top level legend
- Automation: add Base layer symbology
- Automation: CoordinateSystem: New Local System (WKT parser should support LOCAL_CS)
- Automation: GridData: have Grid Z Limits option
- Automation: GridData: have Z Transform option
- Automation: GridData: save and load the grid settings files (*.srfgds)
- Automation: add new map scale bar options
- Automation: MapFrame: set ScalingRatio
- Automation: PostLegend: add new properties
- Automation: VectorLegend: add new properties

Fixed:
- 3D View: 3D surface map and 1-grid vector map with same source grid creates two surfaces
- 3D View: Disabled surface texture appears in 3D PDF export
- 3D View: Title angle does not rotate title text
- Contents: Undo deletion: layers from different maps are selected in Contents
- Crash after creating 3D view
- Crash when closing Surfer after printing
- Crash when importing multiple files
- Crash when opening an empty PDF file to Surfer
- Double click on BAS opens empty Scripter
- EMF export: Rotated text exports as polygons/polylines for certain degrees of rotation
- Internal Error (cacheejectionlru.cpp)
- Internal Error after clicking to 3D view and getting error can't transform coordinates (gscatch.cpp)
- Internal Error after creating 3D Surface map (graphics3.cpp)
- Internal Error after exporting the 3D View to 3D (stratosstatemanager.cpp)
- Internal Error in 3D view with Walk (statepresenter.cpp)
- Internal Error when cancelling 3D View flythrough (grid.cpp)
- Internal Error when closing Surfer (autodocuments.cpp)
- Internal Error when creating contour map (with fill) from Grid Calculus command
- Internal Error when loading an ASC grid (trlattice.cpp)
- Internal Error when set contour smoothing (contourlabeler.cpp)
- Internal Error with Undo (scenelist.cpp)