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GISP > Data Manipulation > Flashcards

Data Manipulation Flashcards

1
Q

Attribute (processes in ArcPro)

A

New Selection, Add to Selection, Remove from Selection, Subset Selection, Switch Selection, Clear Selection

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2
Q

Contains

A

features contain an input polygon (input polygon is selected)

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3
Q

Completely Contains

A

features must be completely in an input polygon (input polygon selected)

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4
Q

Contains Clementini

A

features must be completely in the input polygon but if it’s on the boundary, it will not be selected

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5
Q

Within

A

features will be selected if inside a selecting polygon

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6
Q

Completely Within

A

features will be selected if completely within selecting polygon - no overlap

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7
Q

Within Clementini

A

features will be selected and cannot be entirely on the boundary of the features

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8
Q

Are Identical to

A

features are identical to input layer

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9
Q

Boundary Touches

A

features will be selected if they have a boundary that touches a selecting feature - must be completely inside or outside the polygon

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10
Q

Share a Line Segment With

A

features selected if they share a line segment

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11
Q

Crossed by the Outline of

A

Input features will be selected if they are crossed by the outline of a selecting feature

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12
Q

Have their Center In

A

features will be selected if their center falls within a selecting feature

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13
Q

Contained By

A

Same as Within

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14
Q

.shp

A

shape format - feature geometry itself

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15
Q

.shx

A

shape index format - positional index of the feature geometry to allow seeking forwards and backwards quickly

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16
Q

.dbf

A

attribute information

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17
Q

.prj

A

projection format

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18
Q

.sbn & .sbx

A

spatial index

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19
Q

.shp.xml

A

geospatial metadata in XML format

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20
Q

.gdb

A

file geodatabase

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21
Q

.mdb

A

personal geodatabase based on Microsoft access

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22
Q

coverage file

A

point, arc, node, route, route system, section, polygon, and region

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23
Q

DGN

A

AutoCAD and Microstation

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24
Q

TXT

A

text

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25
IMG
image
26
LiDAR
remote sensing technology that measures distance by illuminating a target with a laser and analyzing the reflected light
27
Raster
.jpg, .tif, .gif
28
Short Integer
between -32768 and 32768
29
Long Integer
between -2,147,483,648 and 2,147,483,647
30
Float
single precision floating-point numbers
31
Double
double precision floating point numbers
32
Text
could be a coded value - assign to an integer through a domain
33
BLOBs
data stored as a long sequence of binary numbers - ArcGIS stores annotation and dimensions as BLOBs - images, multimedia, bits of code
34
Object Identifiers
Unique IDs and FIDs
35
Global Identifiers
Global ID and GUID - data types store registry style strings consisting of 36 characters enclosed in curly brackets
36
Raster file types
raster can be stored within geodatabase
37
Geometry
point, line, polygon, multipoint, multipatch
38
1-1
each object of the origin table can be related to 0 or 1 object of the destination table
39
1-Many
each object in the orgin table can be related to the multiple objects in the destination table
40
Many-Many
multiple objects of the origin table can be related to multiple objects of the destination table
41
Primary Source
collected in digital format specifically for use in a GIS project
42
Secondary Source
data captured for another project but reused for this project
43
Transfer ( Data Transfer Structures)
follow Spatial Data Transfer Standard (SDTS) - Federal Information Processing Standard (173) - robust way of transferring GIS data between computers with no information loss, including metadata
44
Industry Standards (Data Transfer Structures)
typically don't exchange topology, only graphic info; large number of format transfers
45
Open GIS Consortium (OGC) (Data Transfer Structures)
non-profit, international, voluntary consensus standards organization - created GML or Geography Markup Language - XML based encoding standard
46
PostScript (Vector)
page definition language to export or print a map
47
Digital Exchange Format (DXF) (Vector)
AutoCAD - no topology but lots of details
48
Digital Line Graph (DLG) (Vector)
distributed by the government and most GIS packages will import but extra manipulation needed
49
TIGER (Vector)
block level maps of every village, town and city in US
50
shapefile (Vector)
vector data that stores location, shape and attributes
51
Scalable Vector Graphics (SVG) (Vector)
extension of XML language
52
ArcInfo Coverage (Vector)
stores set of thematically associated data considered to be a unit
53
ArcInfo Interchange File (.e00) (Vector)
known as ArcGIS export file
54
Geodatabase (Vector)
object oriented data model represents features and attributes as objects
55
Standard (Raster)
rows and columns with a header information
56
Tagged Image File Formats (TIFF) (Raster)
associated with scanners
57
GEO-TIFF (Raster)
puts latitude/longitude at edges of pixels
58
Graphic Interchange Format (GIF) (Raster)
image files for sharp edges and few gradations of color
59
Joint Photographic Experts Group (JPEG) (Raster)
variable-resolution compression system with both partial and full resolution recovery
60
Digital Elevation Model (DEM) (Raster)
30 meter elevation data 1:24000 7.5 minute quadrangle maps or 1:250,000 3 arc second digital terrain data
61
Band Interleaved by Pixel (BIP) or Band Interleaved by line (BIL) (Raster)
good at storing different brightness levels
62
RS Landsat (Raster)
satellite imagery and BIL information are combined
63
Raster to Vector
not difficult based on pixel value
64
Vector to Raster
very difficult because pixels may distort the lines or exact point locations and would need to be re-digitized

GISP (6 decks)

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