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# Tools and Features in Geographic Calculator

## Seismic Survey QC

Allows seismic technicians to check the quality of preplot and poststack seismic lines between UKOOA and SEG-Y files. This multifaceted component simultaneously checks the line accuracy; validates the heading; locates duplicate shot records; counts the number of points and lines in each seismic file; and generates a report of those points there are outside the required specifications.

## Interactive Conversion

Select your source and destination coordinate systems, enter your coordinates, choose the datum transformation you would like to use, and then press the "Calculate" button. Yes, it's that easy! The Interactive conversion tab allows you to convert, forward a position, and calculate the distance and azimuth between two points.

Interactive conversions with the click of a button

Interactive conversions with the click of a button

## Point Database - Conversion

The Point Database Conversion job allows for conversion and transformation of tabular numeric coordinates. Coordinate data must be uniformly organized into columns with all coordinates in a given column being relative to the same coordinate reference system. Multiple conversions can be performed across several sets of columns. There is no limit to the length of database that can be processed via the Point Database Conversion job. This job can be used as a template for a batch process.

Supported Input Types:

• Manually entered numeric coordinates
• Microsoft Excel (.xls, .xlsx)
• dBase (.dbf)
• Microsoft Access (.mdb)
• ASCII Text files (.csv, .tsv, ...)
• ODBC databases
Convert point databases, including your own text file formats

Convert point databases, including your own text file formats

## Point Database - Forward & Inverse

The Point Database Forward or Inverse job calculates paths between positions in tabular numeric coordinates. Coordinate data must be uniformly organized into columns with all coordinates in a given column being relative to the same coordinate reference system and both the left and right coordinate systems must share a common geodetic base. There is no limit to the length of database that can be run via the Point Database Conversion job. This job can be used as a template for a batch process.

• Forward: Calculates the endpoint of a traverse from an input coordinate and distance/azimuth away along the path of a geodesic, rhumb line, or grid line
• Inverse: Calculates geodesic, rhumb line, or grid Distance and Azimuth between two input coordinates

Supported Input Types:

• Manually entered numeric coordinates
• Microsoft Excel (.xls, .xlsx)
• dBase (.dbf)
• Microsoft Access (.mdb)
• ASCII Text files (.csv, .tsv, ...)
• ODBC databases

## Point Database - Scale & Translate

The Point Database Scale and Translate job allows for conversion and transformation of tabular numeric coordinates. Coordinates can be shifted, rotated, and stretched, by manually entering in the parameters of the desired transformation. These are commonly used for old survey data where control data may not be available for a higher accuracy transformation. Coordinate data must be uniformly organized into columns with all coordinates in a given column being relative to the same coordinate reference system. There is no limit to the length of database that can be run via the Point Database Conversion job.

Supported Input Types:

• Manually entered numeric coordinates
• Microsoft Excel (.xls, .xlsx)
• dBase (.dbf)
• Microsoft Access (.mdb)
• ASCII Text files (.csv, .tsv, ...)
• ODBC databases

## Point Database - Best Fit

The Point Database - Best Fit job derives a polynomial transformation relating two coordinate systems together, based on geodetically-based control points. One coordinate system will be an arbitrarily defined local ground coordinate system, the second will be a geodetic control. Two sets of coordinates are required, one for each system. This is commonly used to transform mine grids, airport ground grids, or any other local survey or engineering plan coordinate system to a geodetic or projected system.

Supported Input Types:

• Manually entered numeric coordinates
• Microsoft Excel (.xls, .xlsx)
• dBase (.dbf)
• Microsoft Access (.mdb)
• ASCII Text files (.csv, .tsv, ...)
• ODBC databases

## Point Database - Derive Datum Shift

The Derive Datum Shift job allows you to calculate a 3 or 7 parameter coordinate transformation between two geodetic coordinate systems. Two sets of coordinates are required, one for each system. The input coordinates can be Projected or Geodetic, the only requirement is that they are both geodetically based.

Supported Input Types:

• Manually entered numeric coordinates
• Microsoft Excel (.xls, .xlsx)
• dBase (.dbf)
• Microsoft Access (.mdb)
• ASCII Text files (.csv, .tsv, ...)
• ODBC databases

## Seismic Survey Conversion

The new Seismic Survey conversion allows users to access, maintain, and convert SEG, SPS and UKOOA formatted ASCII data faster and more efficiently. Quickly define custom reader rules to clean up improperly formatted data, convert multiple records types in the same file with a single pass, preserve and update metadata attached in all files and convert grid and geodetic record sets in a single pass.

Seismic Survey Conversion Interface

Seismic Survey Conversion Interface

## Vector Data Conversion

Convert individual vector and CAD files, batch process an entire folder from different formats and coordinate systems - AutoCAD DWG/DXF, Microstation DGN, Esri Shapefile, ArcInfo Generate, E00, Google's KML, GML Simple Features, MapInfo TAB/MIF, Velocity files and much more are fully supported for both read and write. The Vector Data Conversion job includes area cropping and layer splitting functionality. Manually specified transformations for Scale, Translation, and Rotation parameters are also supported.

Vector Data Conversion Job

Vector Data Conversion Job

## Land Survey Summary

The Land Survey Summary job allows users to generate printed layouts in Canadian survey systems. This allows users of Alberta and Saskatchewan lease data to plot layouts of points and lines directly from Dominion Land Survey coordinates in the context of the borders of the individual townships and ranges. Support has been added for Saskatchewan Grids systems, as well as enhanced layouts for non-square townships.

## Raster Format Support

Supports (read and write) all of the major GIS raster and reference formats including standard GeoTIFF, Mapinfo Table (TAB) and ESRI World (TFW, WLD, JGW) referencing files, Windows Bitmap (BMP), LizardTech's MrSID, JPG2000, Enhanced Compressed Wavelet (ECW), and more.

Work with Raster Files

Work with Raster Files

## Georeferencing - Reference Point Selection

Georeferencing is accomplished by applying affine or first through fifth order polynomial models to the reference control point information. Interactively add, delete, and edit reference information to ensure an accurate fit.

• Easily georeference images by interactively selecting reference points
• Multiple view windows enable rapid reference point selection within source images
• Creates industry standard GeoTIFF, Mapinfo Table (TAB) and ESRI World (TFW, WLD, JGW) referencing files
• Transfer control points directly from your ArcView, MapInfo, AutoCAD, and MicroStation map files
• A production proven automatic reference point selection feature accelerates the registration of maps with regular grid lines
Reference your Images with a Separate Image Viewer

Reference your Images with a Separate Image Viewer

## Raster Reprojection

Why would you want to reproject data with anything else? Geographic Calculator features the unmatched geodetic datasource of GeoCalc.XML. You can even define your own custom units, ellipsoids, datums and coordinate systems.

Specifically:

• Over 3500 pre-defined coordinate systems
• Over 165 ellipsoids
• Over 630 datum transformations
• Over 70 linear units and much more
Reproject Your Raster Data

Reproject Your Raster Data