3D Surface
Maps
Surfer 8 produces spectacular 3D rendered surface
maps with complete control over lighting and shading, position, rotation and
tilt angles. Overlay raster and vector base maps, contour maps, image maps,
shaded relief maps, post maps and vector maps and specify the color modulation
(surface and overlay blending).
Drape a raster or vector base map on
a 3D surface
Grid Mosaic
Combine adjacent and overlapping grid and DEM files into a
single GRD to produce a single map. In areas of overlap, specify which grid
nodes to use with the average, first, last, minimum, or maximum methods. Use the
existing grid nodes, or resample at a different grid spacing using bilinear
interpolation, cubic convolution, or nearest neighbor sampling
methods.
This surface map was created with a grid
resulting from the combination of the Montezuma and Mt Evans Colorado 7.5 minute
DEM files. Vertical lines on the base represent offsets caused by difference
between UTM coordinates and latitude / longitude definition of quadrangle
boundary
Cross Validation
Select the Cross Validate option to compare the Z value of a
data point with the results of gridding without that point. Write the results to
a statistics report and to a data file.
Specify the number of points to
validate, statistics report, and results data file name.
Grid Filter
The Grid Matrix Smoothing options have been expanded into
the new Grid Filter featuring more than sixty predefined filters. In addition,
define your own filter parameters to refine your grid.
Choose from a large selection of
predefined grid filters, or define your own.
Data Metrics
Create grid files and maps illustrating spatial statistics
within the search ellipse such as number of data points, approximate density,
distance to nearest and farthest point, mean, standard deviation, variance, and
coefficient of variation of the Z values.
Use the Data Metrics gridding method to grid
and map spatial variation of statistical parameters.
Improved User Interface Equals Increased
Ease-of-Use
- Properties dialog boxes optionally remain open
and interactively change to reflect the options available for each selected
object.
- 3D Trackball tool facilitates changes to the
tilt and rotation view angles.
- Realtime Pan and Zoom tools quickly change the
display to the desired section of the plot.
The 3D Trackball tool lets you visually change
the view of a 3D plot.
Speedier
- Multithreaded redraw results in faster screen
updates and a more responsive user interface.
- Gridding with faults has been optimized for
better performance.
Larger Worksheet
Read data files with up to one billion (109) rows and columns, subject to available memory.
Rotate and Tilt Raster
Maps
View your bitmap images from the best angle. Rotate and 3D
tilt shaded relief maps, image maps, and raster base maps.
USGS DRG base maps and other raster
maps can be rotated and tilted to any angle.
New Gridding Methods
Surfer continues to dominate the field with the addition of
new gridding methods. New methods include:
- Moving Average
- Local Polynomial
Other new gridding features include:
- More flexible sector specification
- View worksheet from Grid Data dialog
- Sort and duplicate check after specifying
gridding parameters are specified to enable faster data file loading
- Generate a report of the gridding statistics
and parameters including ANOVA regression.
- Export Triangulation and Natural Neighbor
Delaunay triangle network to a raster or vector file.
Export the triangulation network to a
raster or vector file, create a base map
and overlay on a post map of the
data points.
New Variogram Models
Surfer 8 adds the Cubic and Pentaspherical models to the
variogram analysis.
Additional variogram models give you
more choices when
analyzing your data.
Support for More File
Formats
More import and export options have been added to the
already long list of file formats.
- Import Golden Software GSI, ESRI E00, Windows
Enhanced Metafile EMF
- Export Golden Software GSI & GSB, MapInfo
MIF, Windows EMF
Use USGS SDTS DEM and DLG Files in Native
Format
Use the new format USGS SDTS Digital Elevation Model files
(DDF) in Surfer to make contour, surface, wireframe, vector, shaded relief, and
image maps.
Maximum Plot Size
Increased
The old 32-inch (81 cm) page limit under Windows 98 and Me
has been banished. The default maximum page size is 110 inches (279 cm), with
the option to increase the maximum size to 2000 inches (5080
cm).
Download the Latest Version with Internet
Update
Check for the latest version of Surfer 8 using your Internet
connection. If there is a newer version available, download and install it
automatically. View the Version History for a list of changes in
versions subsequent to 8.00.
Surfer 8 makes it easier than ever to
stay up-to-date with the latest version of the software.
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