TIN To Raster (3D Analyst)


Creates a raster by interpolating its cell values from the elevation of the input TIN at the specified sampling distance.

Learn more about how TIN To Raster works


Create Raster From TIN illustration



TinRaster_3d (in_tin, out_raster, {data_type}, {method}, {sample_distance}, {z_factor})
ParameterExplanationData Type

The input TIN.

TIN Layer

The location and name of the output raster. When storing a raster dataset in a geodatabase or in a folder such as an Esri Grid, no file extension should be added to the name of the raster dataset. A file extension can be provided to define the raster's format when storing it in a folder:

  • .bil—Esri BIL
  • .bip—Esri BIP
  • .bsq—Esri BSQ
  • .dat—ENVI DAT
  • .png—PNG
  • .tif—TIFF

If the raster is stored as a TIFF file or in a geodatabase, its raster compression type and quality can be specified using geoprocessing environment settings.

Raster Dataset

The data type of the output raster can be defined by the following keywords:

  • FLOATOutput raster will use 32-bit floating point, which supports values ranging from -3.402823466e+38 to 3.402823466e+38. This is the default.
  • INTOutput raster will use an appropriate integer bit depth. This option will round Z-values to the nearest whole number and write an integer to each raster cell value.

The interpolation method used to create the raster.

  • LINEARCalculates cell values by applying linear interpolation to the TIN triangles. This is the default.
  • NATURAL_NEIGHBORSCalculates cell values by using natural neighbors interpolation of TIN triangles
sampling_method distance

The sampling method and distance used to define the cell size of the output raster.

  • OBSERVATIONS—Defines the number of cells on the longest side of the output raster. This method is used by default with a distance of 250.
  • CELLSIZE—Defines the cell size of the output raster.

The factor by which elevation values will be multiplied. This is typically used to convert Z linear units that match those of the XY linear units. The default is 1, which leaves elevation values unchanged.


Code Sample

TinRaster example 1 (Python window)

The following sample demonstrates the use of this tool in the Python window:

import arcpy
from arcpy import env

env.workspace = "C:/data"
arcpy.TinRaster_3d("tin", "raster.img", "INT", "LINEAR", "OBSERVATIONS 250", 1)
TinRaster example 2 (stand-alone script)

The following sample demonstrates the use of this tool in a stand-alone Python script:

Name: TinRaster Example
Description: This script demonstrates how to use the 
             TinRaster tool to create rasters from 
             each TIN in the target workspace.
# Import system modules
import arcpy
from arcpy import env
import exceptions, sys, traceback

    # Set environment setting
    env.workspace = "C:/data"
    # Set Local Variables
    dataType = "INT"
    method = "NATURAL_NEIGHBORS"
    sampling = "CELLSIZE 10"
    zfactor = "1"
    # Create list of TINs
    TINList = arcpy.ListDatasets("*", "Tin")
    # Verify the presence of TINs in the list
    if TINList:
        # Iterate through the list of TINs
        for dataset in TINList:
            # Define the name of the output file
            outRaster = "{0}_natural.img".format(dataset)
            # Execute TinRaster
            arcpy.ddd.TinRaster(dataset, outRaster, dataType, 
                                method, sampling, zfactor)
        print "Finished."
        print "There are no TIN(s) in {0}.".format(env.workspace)
except arcpy.ExecuteError:
    print arcpy.GetMessages()
    # Get the traceback object
    tb = sys.exc_info()[2]
    tbinfo = traceback.format_tb(tb)[0]
    # Concatenate error information into message string
    pymsg = 'PYTHON ERRORS:\nTraceback info:\n{0}\nError Info:\n{1}'\
          .format(tbinfo, str(sys.exc_info()[1]))
    msgs = 'ArcPy ERRORS:\n {0}\n'.format(arcpy.GetMessages(2))
    # Return python error messages for script tool or Python Window


Related Topics

Licensing Information

ArcView: Requires 3D Analyst
ArcEditor: Requires 3D Analyst
ArcInfo: Requires 3D Analyst