Questions tagged [surfer]

A 2D and 3D surface modeling software distributed by Golden Software

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31 views

Strange output of Kriging standard deviation

For my thesis I am interpolating some 4000 boreholepoints via Kriging to try and visualize a geological layer under the ground level. Since I know there is a strong trend in my data (SW-NE slope) I ...
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0answers
10 views

Surfer force topology checks on polygons

Is there a trick to force topology checks in Surfer or Didger? My polygons are in BLN (or sometimes DAT and just connect the lines in Surfer). When one gets updated (like in the sketch on the right), ...
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1answer
101 views

Adding topography to base maps using Surfer?

I want to add the topography map with extension (BLN) to my the map which I create it using the Surfer prog, I put only the country board. How can I add the topography maps as a background using the ...
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vote
1answer
28 views

Difference between Save As and Convert in Surfer?

Is there any difference in the file saved when using "Save As" compared to "Convert" to save/convert a Surfer .grd as an ASCII .asc grid?
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1answer
212 views

How to turn polygon into base layer in Surfer 14?

How do I turn a polygon I have drawn into a base layer in Surfer 14? In Surfer 12, I used to be able to select my Base Map --> Digitise --> Select Polygon --> Digitise the Polygon Extents --> Export ...
2
votes
0answers
355 views

Create DEM from either few points or contours without elevation attributes

I have DWG file that contains couple of layers, among others I have "elevations" layer (that consists of only 80 points) and "contours" layer that can be seen on the images below. My goal is to make ...
4
votes
2answers
29k views

How to extract DEM files from google Earth/Map for surfer?

I will need to do a 3D representation of a terrain and I heard surfer is ideal, but then I do not have a DEM file of the region, I know Google Earth and Map could help, but I do not know how? If there ...
3
votes
1answer
1k views

Raster values - QGIS (Point Sampling Tool) vs. Surfer (Grid Residuals)

I have a grid/raster file, interpolated using triangulation method in Surfer (Golden Software). When I contour the file (either in Surfer or QGIS), the contours are basically identical. I have a ...
2
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1answer
770 views

Surfer problem - overlapping grd bln

I have the following problems with Surfer: 1, I have a grid file and a bln but i'm not sure that they overlap each other exactly. I set the coordinate system with grd and bln! (WGS84) but there is no ...