Pull Up: increases the z-values within an area.Push Down: reduces the z-values within an area.Smooth: create a continuous transition from one z-value to the next to remove sharp edges along contour lines.Warp: distort or transform the z-values to create a new shape of the contour lines.Brush: apply the same z-values to an area by painting the area with the brush.Here is the list of the grid editing tools: Open the grid you wish to edit, select a tool, and use your mouse to edit the grid directly on your screen. Surfer’s grid editing tools are similar to the drawing tools found in Adobe’s Photoshop or other image editing programs. Edit individual grid nodes or apply brush tools to change multiple grid nodes at once. The dialog, as you can see below, displays the individual nodes and will also display the contour lines along with the color fill, if you so choose. Surfer’s grid editor window makes it very easy to change grid node values and see how the change affects the contour map. In these situations, you can edit the Z-values in the underlying grid for a more accurate representation of the mapped area. Other times, the interpolation method used may not work well with your dataset and omit important information. Why edit contour lines? There may be times when your dataset doesn’t contain enough detail of the area you’re mapping. It is by editing the Z-values in the underlying grid file that one can edit the lines of the contour map. The contour map is then created from the grid file which contains X, Y, and Z values.
When creating a contour map in Surfer from XYZ data points, the raw data is first interpolated, and a grid file is created.
A contour line connects points of equal elevation, and the distance between contour lines represents the relative slope of the surface.ģD surface map and 2D contour map displayed in Surfer. The ability to edit contour lines is one of Surfer’s most highly requested features, and we are pleased to report this feature is available in the latest release!Ī contour map is a two-dimensional representation of a surface where the surface is represented by contour lines.