Showing posts with label NASA ASTER. Show all posts
Showing posts with label NASA ASTER. Show all posts

GIS Conversion Tools

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GIS Conversion Tools















A)  Converting AutoCAD files to GIS Shape Files

Converting AutoCAD file to Shape Files
Menu → Tools → Converting AutoCAD file to Shape File

B)  Converting GIS Shape Files to AutoCAD files

Converting Shape File to AutoCAD file
Menu → Tools → Converting Shape File to AutoCAD file

C)  Converting GIS Shape Files to Google KML files

Converting Shape File to Google KML file
Menu → Tools → Converting Shape File to Google KML file

D)  Converting GIS Shape Files to HTML GIS Web Sites

Converting GIS Shape File to HTML GIS Web Sites
Menu → Tools → Converting GIS Shape File to HTML GIS Web Sites

E)  Synchronize Google Earth with Lon Lat Geographic maps

Synchronize Google Earth with Lon Lat Geographic Maps
Menu → Tools → Synchronize Google Earth with Lon Lat Geographic Maps
Settings
  • Open Google Earth 4.3 or Later Versions ( It must be installed in your Computer )
  • Inside Google Earth, do the following Settings
  • Tools →  Options : Turn Off Terrain
  • Be Sure that North Arrow is completely very up by
    • View → Show Navigation → Always
    • Press Double Click on North
  • Be Sure that Google Earth is very Flat by:
    • Pressing keyboard Shift and keyboard Up Arrow.
    • Pressing Keyboard Ctrl and keyboard down arrow
  • Close Google Earth
  • Open GIS Software
  • Set Map Projection to Decimal Degree
  • Be Sure Google Earth Software is NOT maximized and is NOT Full Screen

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GIS Surface Analysis

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A)  Downloading  (ASTER and SRTM)  NASA Geo DEM Height Files

Open your Internet browser and go to the following URL to Download ASTER Geo DEM
http://www.gdem.aster.ersdac.or.jp/search.jsp
Open your Internet browser and go to the following URL to Download SRTM height files
http://dds.cr.usgs.gov/srtm/version2_1/SRTM3/

B)  Convert (ASTER and SRTM) NASA Geo DEM Height Files to Tin Shape File

Convert (ASTER & SRTM) DEM to Tin Shape file
Menu → Tools → Convert (ASTER & SRTM) DEM to Tin Shape file

C)  Convert ASTER NASA Geo DEM to Color value bmp File

Convert ASTER Geo DEM to Color Value bmp file
Menu → Layers → Add Layer → Files of Type → TIFF → Open
Menu → Layers → Save Layer as → Change the File extension to → BMP  → Save
  • Open Aster Geo DEM Tiff file
  • Save Layer as bmp file
  • Press Identify at any point in image to get Elevation value

D)  Building Contours from ASTER NASA Geo DEM

Menu → Surface → Building Contours Surface(s) Analysis

E)  Building Tin Surface Analysis

Menu → Surface → Building Tin Surface(s) Analysis
  • Select Height Layer Name
  • Select Height Criteria (All Feature or  Inside Selected Features or Outside Selected Features)
  • Select Height Field
  • Select Output Tin Surface Shape file name
  • Select Build Surface by Delaunay, if elevation points have unequal distances among them.
  • Select Build Surface by Matrix, if elevation points have equal distances among them.
  • Press Build

F)  Building Contours Surface(s) Analysis

Building Contours Surface(s) Analysis
Menu → Surface → Building Contours Surface(s) Analysis
  • Check Use Height Layer as Tin Surface or Not
  • Select Height Layer Name
  • Select Height Criteria (All Feature or  Inside Selected Features or Outside Selected Features)
  • Select Height Field
  • Select Contour Interval
  • Select Base Contour
  • Select Output Contour Shape file name
  • Select Build Surface by Delaunay, if elevation points have unequal distances among them.
  • Select Build Surface by Matrix, if elevation points have equal distances among them.
  • Select Do not build Surface, if Height layer is a Tin Surface
  • Press Build



G)  Converting 2D to 3D Surface Analysis

Converting 2D to 3D Surface Analysis
Menu → Surface → Converting 2D to 3D Surface Analysis
  • Check Use Height Layer as Tin Surface or Not
  • Select Height Layer Name
  • Select Height Criteria (All Feature or  Inside Selected Features or Outside Selected Features)
  • Select Height Field
  • Select Destination 2D GIS Shape File
  • Select Criteria of the Destination 2D GIS Shape File
  • Select Output 3D Shape file name
  • Select Build Surface by Delaunay, if elevation points have unequal distances among them.
  • Select Build Surface by Matrix, if elevation points have equal distances among them.
  • Select Do not build Surface, if Height layer is a Tin Surface
  • Press Convert

H)  Calculating Area and Volume of Surface(s)

Calculate Area and Volume of Surface(s)
Menu → Surface → Calculate Area and Volume of Surface(s)
  • Check Use Height Layer as Tin Surface or Not
  • Select Height Layer Name
  • Select Height Criteria (All Feature or  Inside Selected Features or Outside Selected Features)
  • Select Height Field
  • Select Height of the Calculating Plane
  • Select above Plane or Below Plane
  • Select Build Surface by Delaunay, if elevation points have unequal distances among them.
  • Select Build Surface by Matrix, if elevation points have equal distances among them.
  • Select Do not build Surface, if Height layer is a Tin Surface
  • Press Calculate
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GIS Analysis and Selection

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A)  Spatial Location Analysis and Selection

Selection Find and Data Transfer By Location  (Query Builder)
Menu → Selection → Find and Data Transfer By Location (Query Builder)
  • Select Layer Name
  • Select Criteria (All Feature or  Inside Selected Features or Outside Selected Features)
  • Select Method (New Selection or Add to Selection or Clear from Selection)
  • Select Relation
  • Select Relation  to Layer
  • Select Apply Tolerance or not
  • Select Tolerance value
  • Select Apply Data Transfer for Similar Fields Name or not
  • Select Data Transfer Fields Names
  • Press Find to Start Searching

B)  Attribute Data Base Analysis and Selection

Selection Find By Data (Query Builder)
Menu → Selection → Find By Data (Query Builder)
  • Select Layer Name
  • Select Criteria (All Feature or  Inside Selected Features or Outside Selected Features)
  • Select Method (New Selection or Add to Selection or Clear from Selection)
  • Select Field from the Fields List
  • Select Relation from the Relation List
  • Press Update Unique Value to get all available values
  • Select Value from the List or write it
  • Select Match Case or not
  • Select Map Scale for viewing result
  • Press Find to Start Searching the selected value  

C)  Nested Attribute Data Base Analysis and Selection

Nested Selection Find By Data (Query Builder)
Menu → Selection → Nested Find By Data (Query Builder)
  • Select Layer Name
  • Select Criteria (All Feature or  Inside Selected Features or Outside Selected Features)
  • Select Method (New Selection or Add to Selection or Clear from Selection)
  • Select Fields from the Fields Lists
  • Select Values
  • Select Map Scale for viewing result
  • Press Find to Start Searching the selected values

D)  Spatial Features Snapping and Dividing

Network Snap Vertexes to
Menu → Network → Snap Vertexes to
Menu → Network → Divide Polylines or Polygon on
  • Select Layer Name
  • Select Criteria (All Feature or  Inside Selected Features or Outside Selected Features)
  • Select Vertexes (All , OR (Begin & End) )
  • Select Relation
  • Select Relation  to Layer
  • Select Apply Tolerance or not
  • Select Tolerance value

E)  Shortest Path Analysis

Building Shortest Path Network
Menu → Network → Build Shortest Path Network
Shortest Path Network
Menu → Network → Shortest Path Network
  • Select Layer Name
  • Select Field Name
  • Press From Button
  • Select on the map where to start
  • Press To Button
  • Select on the Map where to Go
  • Press Run
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