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Surfer
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Powerful Contouring, Gridding, and Surface Mapping Package
for Scientists and Engineers |
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detailed description |
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Contour
Maps |
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Surfer contour maps give you full control over all
map parameters. You can accept the Surfer intelligent defaults to automatically
create a contour map, or double-click a map to easily customize map features.
Display contour maps over any contour range and contour interval, or specify
only the contour levels you want to display on the map. And with Surfer you can
add color fill between contours to produce dazzling displays of your maps, or
produce gray scale fills for dramatic black and white printouts.
Create colorful contour maps with custom levels, colors, and a color scale!
Contour Map Features
- Automatic or user-defined contour intervals
and ranges
- Full control over contour label format, font,
frequency, placement, and spacing
- Drag contour labels to place them exactly
where you want them
- Automatic or user-defined color for contour
lines
- Color fill between contours, either
user-specified or as a custom color map of your choice
- Save and load custom color map files for the
exact desired display
- Use one of the built-in presets as the color
map
- Full control over hachures
- Save and load contour map level files that
contain all the level information, so you can easily and quickly create
contour maps with consistent properties
- Regulate smoothing of contour lines
- Blank contour lines in areas where you don't
want to show any data
- Specify color for blanked regions, or make
them transparent
- Add color scale
- Create any number of contour maps on a page
- Add base, vector, shaded relief, image, or
post map layers to contour map layers
- Drape contour map layers over 3D surfaces or
3D wireframes for dramatic displays
- Export contours in 3D DXF and 3D SHP formats
- Adjust the layer opacity
Individual contour labels can be dragged to a new location,
new labels can be added and individual labels can be deleted.
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3D Surface Maps |
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The 3D surface map uses shading and color to emphasize your
data features. Change the lighting, display angle and tilt with a click of the
mouse. Overlay several surface maps to generate informative block diagrams.
Create exciting 3D surface maps from your XYZ data!
Image courtesy of Igor Yashayaev, Bedford Institute of Oceanography,
Fisheries and Oceans, Canada.
3D Surface Map Features
- Specify surface color gradation, shininess,
base fill and line color
- Control mesh line frequency, color, style,
surface offset
- Set lighting horizontal and vertical angles,
ambient, diffuse, and specular properties
- Overlay contour maps, image maps, post maps,
shaded relief maps, raster and vector base maps, and other surface maps for
spectacular presentations
- Choose overlay resample method and resolution,
color modulation (blending) of surface and overlays
- Save and load custom color map files for the
exact desired display
- Use one of the built-in presets as the color
map
- Add color scales to explain the data values
corresponding to each color
- Disable the display of blanked grid nodes or
map the blanked areas to a specific Z level
Combining surface maps is an excellent technique to visually compare data
sets.
Image courtesy of Igor Yashayaev, Bedford Institute of Oceanography,
Fisheries and Oceans, Canada.
Overlay surface maps to visually depict changes with depth! |
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3D Wireframe Maps |
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Surfer wireframe maps provide an impressive three
dimensional display of your data. Use color zones, independent X,Y,Z scaling,
orthographic or perspective projections at any tilt or rotation angle, and
different combinations of X, Y and Z lines to produce exactly the surface you
want. Drape a color-filled contour map over a wireframe map to create the most
striking color or black-and-white representations of your data. The
possibilities are endless.
A wireframe map can be used to display any combination of X,Y, and Z lines.
A USGS SDTS DEM file was used to create this map and color zones were defined
for the X and Y lines.
3D Wireframe Map Features
- Display any combination of X,Y, and Z lines
- Use automatic or user-defined color zones to
highlight different Z levels
- Stack any number of 3D surfaces on a single page
- Optional hidden line removal
- Overlay any combination of contour, filled contour,
base, post, and classed post maps on a surface
- Views of the top or bottom of the surface, or both
- Proportional or independent scaling in the X,Y, and Z
dimensions
- Full control over axis tick marks and tick labels
- Add a base with optional vertical base lines
- Display the surface at any rotation or tilt angle
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Vector
Maps |
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Instantly create vector maps in Surfer to show direction
and magnitude of data at points on a map. You can create vector maps from
information in one grid or two separate grids. The two components of the vector
map, direction and magnitude, are automatically generated from a single grid by
computing the gradient of the represented surface. At any given grid node, the
direction of the arrow points in the direction of the steepest descent. The
magnitude of the arrow changes depending on the steepness of the descent.
Two-grid vector maps use two separate grid files to determine the vector
direction and magnitude. The grids can contain Cartesian or polar data. With
Cartesian data, one grid consists of X component data and the other grid
consists of Y component data. With polar data, one grid consists of angle
information and the other grid contains length information. Overlay vector maps
on contour or wireframe maps to enhance the presentation! |
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A vector map of Mt. St. Helens overlaid on a contour map
Use a color scale bar or legend to indicate the magnitude of the arrows. |
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Vector Map Features
- Create vector maps based on one grid or
two grids.
- Define arrow style, color, and frequency
- Symbol color may be fixed, based on vector
magnitude or based on a grid file
- Save and load custom color map files for
the exact desired display
- Use one of the built-in presets as the
color map
- Display color scale bars and vector scale
legends
- Scale the arrow shaft length, head length,
and width
- Control vector symbol origin
- Choose from linear, logarithmic, or square root scaling methods
- Adjust the layer opacity
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A vector map of Mt. St. Helens overlaid on a wireframe map
This vector map displays the ocean's surface currents. Image courtesy of
Chris Fullilove, Rip Charts. |
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Image
Maps |
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Surfer image maps use different colors to represent
elevations of a grid file. Surfer automatically blends colors between percentage
values so you end up with a smooth color gradation over the entire map. You can
add color anchors at any percentage point between 0 and 100. Each anchor point
can be assigned a unique color, and the colors are automatically blended between
adjacent anchor points. This allows you to create color maps using any
combination of colors. Add a color scale to show the values of the different
colors! Image maps can be created independently of other maps, or can be
combined with other map layers. They can be scaled, resized, limited and moved.
Customize your image map by adding color, including a color
scale, and
overlaying it with other map layers to make the map as informative as
possible! The above map is created from an image map of Colorado
elevation overlaid with a base map layer showing the county boundaries.
Image Map Features
- Display pixel maps or smoothed images
- Save and load custom color map files for the exact
desired display
- Use one of the built-in presets as the color map
- Create an associated color scale
- Overlay image maps with contour, post, or base maps
- Specify a color for missing data, or choose to make
areas of no data transparent
- Change the rotation and tilt angles
- Adjust the layer opacity
Colorful and smooth image maps can be combined with base maps and
contour maps to create informative displays. Image courtesy of Igor
Yashayaev, Bedford Institute of Oceanography, Canada. |
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Shaded Relief Maps |
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Shaded relief maps are raster images based on grid
files. Shaded relief maps assign colors based on slope orientation relative to a
light source. Surfer determines the orientation of each grid cell and calculates
reflectance of a point light source on the grid surface. The light source can be
thought of as the sun shining on a topographic surface. Surfer automatically
blends colors between percentage values so you end up with a smooth color
gradation over the map. You can add color anchors so each anchor point can be
assigned a unique color, and the colors are automatically blended between
adjacent anchor points. This allows you to create color maps using any
combination of colors. Shaded relief maps can be created independently of other
maps, or can be combined with other layers. Shaded relief maps can be scaled,
resized, limited, and moved in the same way as other types of maps.
Create detailed shaded relief maps! This map shows a turbidite
fan
and was created with multi-beam echo-sounder data obtained
in the Caribbean Sea.
Shaded Relief Map Features
- Create photo-quality relief maps from grid files
- Control light source position, relative slope gradient,
and shading
- Overlay with contour, vector, post, or base maps for
highly effective displays
- Shading calculations based on several shading methods,
including Simple, Peucker's Approximation, Lambertian Reflection, and
Lommel-Seeliger Law
- Set relief parameters using Central Difference or
Midpoint difference gradient methods
- Save and load custom color map files for the exact
desired display
- Use one of the built-in presets as the color map
- Specify a color for missing data, or choose to make
areas of no data transparent
- Change the rotation and tilt angles
- Adjust the layer opacity
Create spectacular maps in seconds. This map consists of a shaded relief
map overlaid with a contour map detailing the salinity of the Atlantic Ocean
at 100 meters. Image courtesy of Igor Yashayaev, Bedford Institute of
Oceanography, Canada.
Combine a shaded relief map with contour and base map features. |
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Post Maps |
Post maps show XY locations with fixed size symbols
or proportionally scaled symbols of any color. Create post maps independent of
other maps on the page, or combined with other map layers. For each posted
point, specify the symbol and label type, size, and angle. Also create classed
post maps that identify different ranges of data by automatically assigning a
different symbol or color to each data range. Post your sample locations, well
locations, or original data point locations on a contour map to show the
distribution of data points on the map, and to demonstrate the accuracy of the
gridding methods you use.
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Use post maps to display the location of your XY data. |
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Post Map Features
- Create any number of post maps on a single page
- Post data from any number of files
- Use proportional or fixed size symbols
- Full control of symbol style, color, and frequency
- Post every point or every nth point
- Specify custom symbols from the worksheet
- Add labels from a data file and adjust the angle of the label and the plane in which the label appears
- Drag post map labels to place them exactly where you want them
- Make a classed post map to post different symbols for specified ranges of data values
- Create a classed post legend to display the symbols and data ranges
- Save and load classes for a classed post map
- Adjust the layer opacity
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Different symbols are used to display different ranges of
data in classed post maps. Here, a classed post map is
overlaid on a
wireframe map and 3D label lines have been
added to lift the symbols up off
the map surface. |
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Base
Maps |
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Surfer can import maps in many different formats to
display geographic information. You can combine base maps with other maps in map
overlays, or can create stand-alone base maps independent of other maps on the
page. You can load any number of base maps on a page. It is easy to overlay a
base map on a contour or surface wireframe map, allowing you to display
geographic information in combination with the three dimensional data.
Display your base maps in Surfer alone or overlay them on other maps.
Base Map Features
- Edit the line, fill, text and symbol properties for
individual objects in a base map
- Globally edit the line, fill, text and symbol
properties for al objects in a base map
- Import georeferenced images files in real world
coordinates
- Manually georeferenced images files in real world
coordinates
- Calculate the area and perimeter length of polygons in
a base map
- Calculate the length of polylines in a base map
- Copy, paste, reshape, move and delete individual
objects in a base map
- Add new objects to a base map
- Adjust the layer opacity
- Import base maps in several formats: AN1, AN2, BLN, BMP, BNA, BW, DCM,
DIC, DDF, DLG, DXF, E00, ECW, EMF, GIF, GSB, GSI, JPEG, JPG, LGO, LGS, MIF,
PCX, PLT, PLY, PNG, PNM/PPM/PGM/PBM, RAS, RGB, RGBA, SHP, SID, SUN, TGA, TIF,
TIFF, VTK, WMF, X, and XIMG.
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Map Layers |
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Adding multiple map layers to your map gives you a
way to combine different types of data in one map. For example, you can drape a
georeferenced image over a 3D surface map, overlay multiple base maps with a
contour map, or plot a post map with contours over a wireframe map. And because
you can add any number of map layers to a map, you can show any amount of data
on a single map. You are limited only by your imagination!
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This map was created by adding two contour
map layers, a base map layer and a wireframe
map layer to display contaminate spread.
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Overlay several surface maps to generate
informative block diagrams.
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Effortlessly produce vivid and stunning maps
that display an array of data!
Image courtesy of Igor Yashayaev,
Bedford Institute of Oceanography, Canada.
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Overlay multiple map layers and adjust the transparency of the upper layers
to see the lower layers beneath! This example shows a partially transparent
contour map overlaid with a georeferenced image file imported as a base map.
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Stacking Maps |
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You can align individual maps horizontally on the
page by stacking them. Map stacking was designed to align maps using
commensurate coordinate systems. This command is useful for keeping two or more
maps separated vertically on the page while keeping relative horizontal
positions.
Stack multiple 2D maps to see multiple layers!
Stack and rotate maps for the best presentation possible!
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Map Projections |
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Surfer now supports map projections! Choose from an endless list of coordinate
systems for your map to display. Specify the source coordinate system for each
of the layers in your map, and choose to display the map in any other coordinate
system! For example, load data and grid files in UTM or State Plane coordinates,
and display the map in Latitude/Longitude coordinates! It is simply that easy!
Save the coordinate system information for your grid to an external file for
future reuse.
This map was created using ten different data sets in more than five different
coordinate systems! No extra effort is required to convert data sets, Surfer
works
seamlessly with all coordinate systems. Image courtesy of Eric Dickenson,
Environmental Science and Engineering Division, Colorado School of Mines.
Infestation data was obtained from USDA Forest Service,
Forest Health Protection and its partners. |
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Customize Your Map |
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Make your map look its best by customizing it to fit
your needs! Surfer offers numerous map features to enhance the look of your map.
Use Surfer�s defaults, or customize your map by including scale bars, editing
colors, lines and fill styles, showing only portions of a map, adjusting the
scale and setting axis properties!
Map Features
- Change the tilt, rotation and field of view
angle for the map
- Specify the view projection as perspective or
orthographic
- Set XYZ scales in map units or page length
- Choose proportional or independent XY scaling
- Display the map using the data XY limits or choose to display the map
using a subset of the data
- Control background fill and line color and styles
- Full control over the axis limits and scaling, axis title, axis line
style, tick labels, tick spacing, tick display, and grid line
Other Customizations
- Create any number of maps on a single page
- Create independent maps or create a combined
map with multiple types of map layers
- Add scale bars
- Add additional axes
- Add text, polylines, polygons and symbols
- Edit text, line, fill and symbol properties
- Set the transparency for images, fill patterns
and most map layers
- Define custom line styles and colors
- Add any number of text blocks at any position
on the map, using TrueType fonts
- Include superscripts, subscripts and Greek or
other characters in text
- Add arrowheads to lines
Customize your map using the abundant options available to you! 
Create the most informative maps possible by adding text, scale bars,
location maps, and other details!
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Superior Gridding |
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The gridding methods in Surfer allow you to produce
accurate contour, surface, wireframe, vector, image, and shaded relief maps from
your XYZ data. The data can be randomly dispersed over the map area, and
Surfer's gridding will interpolate your data onto a grid. You have a multitude
of gridding methods to choose from, so you can produce exactly the map you want.
With each gridding method you have complete control over the gridding
parameters. If your data are already collected in a regular rectangular array,
you can create a map directly from your data. Computer generated contour maps
have never been more accurate.
Gridding Features
- Interpolate from up to 1 billion XYZ data points
(limited by available memory)
- Produce grids with up to 100 million nodes
- Specify faults and breaklines when gridding
- Choose from one of the powerful gridding methods:
Inverse Distance, Kriging, Minimum Curvature, Polynomial Regression,
Triangulation, Nearest Neighbor, Shepard's Method, Radial Basis Functions,
Natural Neighbor, Moving Average, and Local Polynomial
- Specify isotropic or anisotropic weighting
- You have full control over the grid line geometry
including grid limits, grid spacing, and number of grid lines
- Customize search options based on user-defined data
sector parameters
- Specify search ellipses at any orientation and scaling
- Use spline smoothing and grid filtering to alter the
grid file
- Use grid math to perform mathematic operations between
grid files
- Use Nearest Neighbor to create grid files without
interpolation
- Use Triangulation to achieve accuracy with large data
sets faster
- Detrend a surface using Polynomial Regression, generate
regression coefficients in a report, and calculate residuals
- Use data exclusion filters to eliminate unwanted data
- Use duplicate data resolution techniques
- Generate a grid of Kriging standard deviations
- Specify point or block Kriging
- Generate a report of the gridding statistics and
parameters including ANOVA regression statistics
- Specify scales and range for each variogram model
- Generate grids from a user-specified function of two
variables
- Calculate grids with Data Metrics including: number of
points within search ellipse, distance to nearest and farthest neighbor,
median, average and offset distance to points within the search ellipse
- Use cross-validation to judge the suitability of the
gridding method for the particular data set
- Save grid files in these formats: ADF, AGR, AIG, AM, ASC, BIL, BIN, BIP,
BSQ, COL, DAT, DEM, ERS , FLD, FLT, GGF, GRD, GXF, HDF,IMG, LAT, RAW, and VTK
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Variograms |
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Use the variogram modeling subsystem to quantitatively
assess the spatial continuity of data. Variograms may be used to select an
appropriate variogram model when gridding with the Kriging algorithm. Surfer
uses a variogram grid as a fundamental internal data representation and once
this grid is built, any experimental variogram can be computed instantaneously.
Variogram Features
- Virtually unlimited data set sizes
- Display both the experimental variogram and the variogram model
- Specify the estimator type: variogram, standardized variogram, auto
covariance, or auto correlation
- Specify the variogram model components: exponential, Gaussian, linear,
logarithmic, nugget effect, power, quadratic, rational quadratic, spherical,
wave, pentaspherical, and cubic models
- Customize the variogram to display symbols, variance, and number of pairs
for each lag
Export the experimental variogram data
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Faults and Breaklines |
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Define faults and breaklines when gridding your
data. Faults act as barriers to the information flow, and data on one side of
the fault will not be directly used to calculate grid node values on the other
side of the fault. Breaklines include Z values. When Surfer sees a breakline, it
uses the Z value of the breakline in combination with nearby data points to
calculate the grid node value. Unlike faults, breaklines are not barriers to
information flow and the gridding algorithm can cross the breakline to use a
point on the other side to calculate a grid node value. Use breaklines to define
streamlines, ridges, and other breaks in slopes. The gridding methods that
support faults are: Inverse Distance to a Power, Minimum Curvature, Nearest
Neighbor, and Data Metrics.
The gridding methods that support breaklines are: Inverse Distance to a
Power, Kriging, Minimum Curvature, Nearest Neighbor, Radial Basis Function,
Moving Average, Data Metrics, and Local Polynomial.
Original contour map without faults or
breaklines.
The same data set gridded with
two
faults and displayed as a contour map. |
The same data set gridded with
two breaklines
and displayed as a contour map. |
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Grid Functions |
In addition to creating maps, you can perform a
variety of functions using grid files. Just a few of the possibilities include:
- Calculating the volume and areas of grid
files! You can calculate the planar and surface area, and calculate the volume
between two grid files, or a grid file and any horizontal plane.
- Applying a mathematical equation to grid
files. Examples include subtracting one grid file from another to create an
isopach map, converting outliers to a minimum or maximum value, or multiplying
one grid file by a conversion factor to convert the Z units from meters to
feet.
- Applying grid filters to emphasize details or
remove background variation in the grid file.
- Blanking specified regions in a grid file to
prevent contours or map data from being drawn through those areas (ie.
buildings, roads, or outside of field areas).
- Creating cross sections and topographical
profiles.
- Combining multiple grid files into a single,
easy to use grid file.
- Extracting subsets of grids or DEMs based on
rows and columns.
- Transforming, offset, rescale, rotate, and
mirror grids.
- Smoothing grid files to create smoother maps.
- Calculating first and second directional
derivatives at user-specified orientations.
- Calculating differential and integral
operators utilizing gradient, Laplacian, biharmonic, and integrated volume
operators.
- Analyzing your data with Fourier and Spectral
Analysis with Correlograms and Periodogram.
- Calculating residuals to find the difference
between the original data point values the interpolated Z values at those
points, or to find the Z values at any specific XY locations.
- Interactively editing individual grid node
values.
- Last 10 grid functions are automatically saved.
- Open grid files in these formats : ADF, AIG, AGR, AM, AN1, AN2, ASC, ASI,
BIL, BIN, BIP, BMP, BSQ, BW, COL, CPS, CPS-3, DAT, DCM, DDF, DEM, DIC, DOS,
DT?, ECW, ERS, FLD, FLT, GGF, GIF, GRD, GXF, HDF, HDR, IMG, INFO, JPEG, JPG,
LAT, PCX, PNG, PNM/PPM/PGM/PBM, RAS, RAW, RGB, RGBA, RST, SID, STK, SUN, TGA,
TIF, TIFF, VTK, X, XIMG, XYZ, ZMAP, ZYC, ZYCOR, and ?10g.
- Save grid files in these formats: ADF, AGR, AIG, AM, ASC, BIL, BIN, BIP,
BSQ, COL, DAT, DEM, ERS , FLD, FLT, GGF, GRD, GXF, HDF, IMG, LAT, RAW, and VTK
Define your section line as a BLN file, slice your grid file, and show the
results as a cross section
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Using USGS and SRTM Data |
- Use USGS DEM, National Elevation Dataset (NED)
and NASA Shuttle Radar Topographic Mission (SRTM) data with any Surfer command
that uses grid files.
- Directly use the files in native format
without modification or conversion.
- Display information about the files, such as
X, Y and Z extents or grid statistics.
- Create contour, vector, shaded relief, image,
3D surface, and 3D wireframe maps from the files.
The above contour map was generated from a grid file in BIL format,
downloaded from the USGS
The National Map Seamless Server |
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Active X Automation |
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Virtually any operation that you can perform interactively
can be controlled using an Automation-compatible programming language such as
Visual Basic, C++, or Perl. Surfer includes GS Scripter - a Visual
Basic-compatible programming environment that lets you write, edit, debug, and
run scripts. In this way you can automate repetitive tasks, create front ends
for running Surfer, or carry out any task that Surfer can do.
Some of our most popular scripts are available for free to
our customers. To download them from this site,
click here. |
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Worksheet |
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Surfer lets you massage your data in many ways to
achieve the exact output you want. Surfer includes a full-featured worksheet for
creating, opening, editing, and saving data files. Data files can be up to one
billion rows and columns, subject to available memory. You can cut, copy, and
paste data within the Surfer worksheet or between applications.
Worksheet Features
- Open files in BLN, BNA, CSV, DAT, DBF, MDB, SLK, TXT, WKx, WRx, XLS, and XLSX formats
- Import a database directly into the Surfer worksheet
- Calculate data statistics
- Perform data transformations using advanced mathematical functions
- Sort data based on primary and secondary columns
- Spatially filter data
- Assign a projection or coordinate system to your data, and convert the data to a new projection or coordinate system
- Assign which columns in the worksheet contain the X, Y and Z data
- Use the Find/Replace function in the worksheet to easily find or replace your data
- Print the worksheet
- Save your data in BLN, BNA, CSV, DAT, SLK, TXT, and XLS formats.
Open, enter, edit and save data in the Surfer
worksheet. |
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Object Manager & Property Manager |
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The object manager and property manager makes the editing of any object simple.
The object manager displays all the objects in the plot document in an
easy-to-use hierarchical tree arrangement. Double click on objects in the object
manager to easily edit them, check or uncheck the check boxes next to their name
to show or hide them, drag and drop objects to rearrange the order in which they
are drawn, and overlay maps by dragging and dropping map layers from one map
frame into another! Select any object or map layer in the object manager for
easy deletion. When an object is selected in the object manager, changes to
the object can be made in the property manager. The property manager is a docked
window that is always displayed on the screen. You can make the property manager
floating or close it, if you do not want it to display. All of the properties
for an object are listed in the property manager. For instance, the Contours
layer is selected in the object manager in the image below, and you can change
the contour layer properties in the property manager. Once the change is made in
the property manager, it is immediately applied in the plot window.
Use the object manager and property manager
to easily access and edit all objects
in your plot window. |
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Additional Features |
- Export formats include: BLN, BMP, BNA, BW, CGM, 3D DXF,
DXF, EMF, EPS, GIF, GSB, JPEG, JPG, MIF, PCX, PDF Raster, PDF Vector, PNG,
PNM/PPM/PGM/PBM, RAS, RGB, RGBA, 3D SHP, SHP, SUN, TGA, TIF, TIFF, WMF, X, and
XIMG.
- Reload map data and grid files with a single command
- Substitute a new grid or data file into an existing map
without changing the map properties
- Display the XYZ coordinates of the cursor location in
the status bar
- Windows Clipboard support for copying maps to other
applications
- Use the mouse to resize objects on the screen
- Define Surfer�s default preferences
- Easily find XY coordinates by digitizing point
locations
- Automatically save digitized coordinates as BLN or
ASCII data files
- Print to any Windows supported printer or plotter
- Display and print subsets of completed maps, complete
with subset axes
- Adjust the number of Undo levels
- Use the reshape tool to edit areas and curves
- Click on a map and pinpoint the same XY location in a
different map
- Click on a map and highlight the nearest data point to
that location in the worksheet
- Create your own keyboard shortcuts for common functions
- Customize the toolbars by adding or removing buttons
- Floatable toolbars
- Download free updates automatically
- Install the 32-bit or 64-bit version of Surfer 10
Export your map in KML or KMZ format for convenient display in Google Earth! |
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