Select the Post layer in the Contents window.Create a post map with the Home | New Map | Post command, select your data file and click Open.Combine the magnitude and direction information into a single file with your XY point location coordinates.If you have an XY data file that includes direction and magnitude data, you can quickly display vectors at XY locations by creating a post map with proportional scaling and an angle column. If your grid file Z values are polar coordinates, angle and magnitude, select the Vectors layer in the Contents window and set the Coordinate system property to Polar (angle, length) in the Properties window Data page.Ĭreate a post map from an XY data file magnitude and direction data.This is the grid with the Y component or magnitude component, depending on the coordinate system. Select the second grid file and click Open.This is the grid with the X component or angle component, depending on the coordinate system. Select the first grid file and click Open.Click Home | New Map | Specialty | 2-Grid Vector.The 2-grid vector map draws vectors based on two grid files containing the X and Y components or the magnitude and direction components. See Gridding directional data, such as wind speed and direction, in Surfer for more information If you have a data file with X,Y, direction, and magnitude data or starting XY and ending XY data, you can grid the data twice, once to create a grid of directions or changes in X and once to create a grid of magnitudes or changes in Y. Click Home | New Map | Specialty | 1-Grid Vector.The 1-grid vector map calculates the maximum slope and slope direction from the Z values in the GRD file to draw vectors with magnitude and direction. If you have an XYZ data file, you can grid the data and create a 1-grid vector map.
Surfer can create vector plots from a single grid file, or from two grid files individually containing direction and magnitude information in either polar or Cartesian coordinates. Calculate magnitude and direction for the data points before creating either map above.Creating a post map with a vector at each XY location using magnitude and direction data.Creating a vector map from 1 or 2 grid files.There are multiple methods available to create a map showing magnitude and direction vectors in Surfer:
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