Original: ArcGIS generates steps to generate contours based on point layers and reduce grid aliasing
First, open ArcMap and load the corresponding point layer and boundary polygon layer
Second, Arctoolbox--spatial analyst Tool----difference analysis-- kriging (according to different circumstances to choose different algorithms, this time the processing is actually using spline method, more smooth than other algorithms, similar operation steps, parameter settings can set the test effect) , make the following settings in turn
Click Environment for detailed settings
The next step of setting "cell size" is the key to resolving aliasing, and masking is the main function of setting the plot range
Determined after success
Generate Raster Data: Right-created layer--export data
Third, generate contour lines
Arctoolbox--spatial Analyst Tools-Surface analysis-Contour lines
Label the appropriate fields
ArcGIS generates the steps to generate contour polygons from point layers and reduce the aliasing of the Rasters