When working with raster data using the Describe function, which 3 different raster data elements could be returned?
Responda
raster band
raster file
raster image
raster dataset
raster catalog
raster collection
Questão 2
Questão
Which property(ies) of a raster object can you use to determine whether a raster has more than one band? (select all that apply)
Responda
format
bandCount
dataType
pixelType
isMultiband
Questão 3
Questão
Which of the following properties are associated with individual raster bands, but not with multiband raster datasets? (select all that apply)
Responda
noDataValue
format
compressionType
pixelType
bandCount
meanCellWidth
Questão 4
Questão
Consider the following code:
import arcpy
arcpy.env.workspace = "C:/Mydata"
rasterlist = arcpy.ListRasters()
for raster in rasterlist:
print raster
The result is as follows:
elevation
What file format is the file called elevation?
Responda
ERDAS IMAGINE
TIFF
raster
Esri GRID
feature class
DEM
Questão 5
Questão
Raster is a class of the arcpy.sa module.
Responda
True
False
Questão 6
Questão
When using arcpy.sa, what does a map algebra expression by default?
Responda
a raster file
a raster dataset
a describe object
a raster object
a geoprocessing object
Questão 7
Questão
Consider the following script:
import arcpy
from arcpy import env
from arcpy.sa import *
env.workspace = "C:/raster"
mynbr = NbrRectangle(5, 5, "CELL")
outraster = FocalStatistics ("landuse", mynbr, "VARIETY")
outraster.save("C:/raster/lu_var")
Which of the following is (are) a class of the arcpy.sa module? (select all that apply)
Responda
NbrRectangle
env
save
FocalStatistics
Questão 8
Questão
Consider the following code:
import arcpy
from arcpy.sa import *
What does import * accomplish?
Responda
imports the arcpy.sa module so all the properties and method can be utilized
imports any of the submodules associated with the arcpy.sa module so they don't need to be called separately
imports all the functions and other elements from the arcpy.sa module so they can be called directly
imports all the raster objects
Questão 9
Questão
Which of the following are classes are part of the arcpy.sa module and are used to define parameters of raster tools?
Responda
ValueTable
SearchNeighborhoodStandard
NbrCircle
RadiusFixed
RemapValue
Raster
Questão 10
Questão
The arcpy.sa module only has one function. Which one is it?
Responda
RasterObject
SpatialReference
MapAlgebra
ApplyEnvironment
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