What's New in Surfer 7?

New!Double Precision

• Display up to 15 decimal digits without losing precision.

New!Contour Maps

• Control contour label frequency and spacing by clicking and dragging individual contour labels.
• Display fault lines with custom line styles.
• Directly load USGS SDTS DEM files.
• Export contours in 3D DXF format.
• Apply color and pattern fill between contours.

New!Gridding Methods

• Create grids from up to 5 million XYZ data points.
• Specify faults and breaklines during gridding.
• Create grids with up to 100 million nodes.
• Apply a generic data exclusion filter for eliminating unwanted data.
• Use powerful duplicate data resolution techniques.
• New, improved gridding methods include Minimum Curvature (with tension) and Modified Shepard’s Method.
• Create variogram models.
• Generate a grid of Kriging standard deviations.
• Generate a report of the gridding statistics and parameters.

New!Variography

• Variography with virtually unlimited data set sizes.
• Display both the experimental variogram and the variogram model.
• Specify the estimator type as a variogram, standardized variogram, auto covariance, or auto correlation.
• Combine multiple variogram components into complex nested models.
• Use the AutoFit feature to define the parameters of selected components.
• Customize the variogram to display symbols, variance, and number pairs for each lag.
• Export the experimental variogram data for plotting in other graphing programs.

New!ActiveX Automation

• Automate repetitive tasks with scripts.
• Use Visual Basic, C++, Perl, or any ActiveX Automation compatible programming language.

New!Map Type - Vector Maps

• Create vector maps from one or two grids.
• Single grid vector maps automatically compute the gradient of the represented
• surface.
• Customize symbol frequency.
• Symbol color may be fixed, based on vector magnitude, or based on the values of an arbitrary grid.
• Full control of line and fill properties for vector symbols.
• Scale the arrow shaft length, head length, and symbol width based on minimum and maximum data values.
• Control symbol origin, vector orientation, and choose from linear, logarithmic, or square root scaling methods.
• Display map scales, color scale bars, and vector scaling legends.

New!Full Featured Worksheet

• Import Formats include: XLS, DAT, SLK, WKx, WRx, CSV, TXT, BNA,
• and BLN.
• Data file size up to 5 million rows.
• Sort data based on columns.
• Apply differential and integral operations including gradient, Laplacian biharmonic, and integrated volume.
• Transform data using custom equations.
• Save worksheet contents in the following formats: XLS, SLK, CSV, TXT, DAT, BNA, and BLN.

New!Import and Export Options

• New export options include: SHP, PNG, BLN, BNA, and 3D DXF.
• New import filters include: SHP, MIF, PNG, and DDF.

New!Object Manager

• Displays all objects in the document in an easy-to-use hierarchical tree view.
• Easily edit, move, and hide any object by selecting it in the object manager.

New!Symbols

• New symbol sets include: Oil and Gas, Wind Barb, Weather, Map, and North Arrows.

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