Datgel - Surfer Features

Easy to learn Windows user interface with floating or dockable toolbars that can be turned on and off.
The Object Manager allows you to select, edit, show, or hide all objects in an easy-to-use hierarchical tree view.
Full 32-bit, double-precision application. Multi-level Undo and Redo.
Multiple informative reports can be generated in the program.

General Features

Define custom colours, fill patterns, and line styles.
Define axis attributes including titles, grid lines, tick marks, and tick spacing for all map types.
Independent scaling for X, Y, and Z (if applicable) dimensions.
Rotate and 3D tilt all map types and bitmaps, using either orthographic or perspective projections.
Directly load USGS SDTS DEM files instead of Surfer grid files.
Display map scale bars for all map types.

Contour Maps

Custom or automatic contour intervals. Control contour label frequency and spacing. Apply colour and pattern fill between contours.
Save and retrieve custom contour fill attributes.
Add colour scale legends.
Display fault lines with custom line styles.
Export contours in 3D DXF format.

3D Wireframe Maps

Surface Maps

Control the colour, lighting, mesh, base, and overlay colour blending.
Most map types, including other surface maps and bitmaps, can be overlaid on surfaces.

Post Maps

Post proportional or fixed size symbols.
Add labels from a data file.
Specify the position, label, symbol, and rotation angle for each posted point.
Post all points from a worksheet column or post every nth point.
Create classed post maps that show different symbols for different ranges of data.
Create a classed post map legend.

Shaded Relief Maps

Create photo-quality shaded relief maps.
Control light position angles.
Set relief parameters using central difference or midpoint difference gradient methods.
Specify how colours are mapped to the reflectance and specify the colour for missing data.

Image Maps

Vector Maps

Create vector maps from one or two grid files.
Define symbol style, colour, and frequency.
Symbol colour may be fixed, based on vector magnitude or the values of an arbitrary grid.
Display colour scale and vector scaling legends.
Scale the arrow shaft length, head length, and symbol width based on minimum and maximum data values.
Control vector orientation, symbol origin, and choose from linear, logarithmic, or square root scaling methods.

Base Maps

Import base maps in several formats: EMF, E00, GSI, DXF, DLG, LGO, LGS, GSB, BNA, BLN, PLT, CLP, WMF, SHP, MIF, BMP, JPG, PNG, TIF, TGA, PCX, DCX, WPG, PCT, GIF, and USGS SDTS TVP (DDF).
Specify the bitmap coordinate system.
Edit line, fill, text, and symbol attributes for vector base map formats.

Overlay Maps

Gridding Methods

Create grids from up to 1 billion XYZ data points.
Specify faults and breaklines during gridding.
Create grids with up to 100 million nodes.
Gridding methods include: Ordinary and Universal Kriging, Inverse Distance to a Power, Minimum Curvature (with tension), Modified Shepards Method, Natural Neighbour, Nearest Neighbour, Polynomial Regression, Radial Basis Function, Triangulation with Linear Interpolation, Moving Average, Data Metrics, and Local Polynomial.
Apply a generic data exclusion filter for eliminating unwanted data.
Use powerful duplicate data resolution techniques.
Use Cross Validate to assess the quality of the selected gridding method.
Create variogram models.
Generate a report of the gridding statistics and parameters. Customise search rules.
Apply anisotropy ratios and angles for most gridding methods.
Generate grids from a user specified function of two variables.

Grid Calculus

Take first or second order directional derivatives.
Use terrain modelling to analyse terrain slope, terrain aspect, profile curvature, plan curvature, and tangential curvature.
Apply differential and integral operations including gradient, Laplacian, biharmonic, and integrated volume.
Apply Fourier and spectral analysis to generate a grid correlogram or periodogram.

Variography

Display both the experimental variogram and the variogram model.
Specify the estimator type as a variogram, standardised variogram, auto covariance, or auto correlation.
Specify variogram model components: exponential, Gaussian, linear, logarithmic, nugget effect, power, quadratic, rational quadratic, spherical, wave (hole effect), cubic, or pentaspherical.
Combine multiple variogram components into complex nested models.
Use the AutoFit feature to define the parameters of selected components.
Customise the variogram to display symbols, variance, and number of pairs for each lag.
Export the experimental variogram data for plotting in other graphing programs.

Grid Utilities

Interactively edit nodes in the grid node editor. Blank specified regions of the grid.
Compute grid volumes, surface areas, cross sections, and residuals.
Use matrix or spline smoothing utilities.
Use the on-screen digitising function to digitise in map coordinates.
Convert binary grids to ASCII grids or ASCII data files.
Combine multiple grid files to form a single grid file.
Filter grids using many pre-defined filters or define your own filter.

Export Options

Export formats include EMF, MIF, GSI, GSB, DXF, SHP, WMF, CLP, CGM, TIF, BMP, JPG, TGA, PCX, DCX, WPG, PNG, BNA, BLN, GIF, and PCT.

Drawing Tools

Drawing tools include text, lines, arrows, polygons, rectangles, ellipses, and symbols.
All objects can be rotated, moved, scaled, and combined into composite objects.
Math Text system supports superscripts, sub scripts, math and Greek symbols.
Use the reshape tool to edit areas and curves.

ActiveX Automation

Automate repetitive tasks with scripts.
Use Visual Basic, C++, Perl, or any ActiveX Automation compatible programming language.
Includes Scripter, a VB compatible scripting program to automate Surfer.

Worksheet

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