1 / 16

DEM TRAINING

DEM TRAINING. (DIGITAL ELEVATION MODEL). STEP 1. OPEN GIS. STEP 2. LOAD IMAGE FILE INTO GIS X:ProjectsMiscellaneousTraining DEMHTA_2012_LIDAR_SurfaceHTA_2012_LIDAR_Surface 2012_surface_HTA_50cm.img. STEP 3. CREATE A NEW SHAPEFILE NAME IT NEW_POINT FEATURE TYPE IS POINT

ivy
Download Presentation

DEM TRAINING

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. DEM TRAINING (DIGITAL ELEVATION MODEL)

  2. STEP 1 • OPEN GIS

  3. STEP 2 • LOAD IMAGE FILE INTO GIS • X:\Projects\Miscellaneous\Training DEM\HTA_2012_LIDAR_Surface\HTA_2012_LIDAR_Surface • 2012_surface_HTA_50cm.img

  4. STEP 3 • CREATE A NEW SHAPEFILE • NAME IT NEW_POINT • FEATURE TYPE IS POINT • EDIT COORDINATE SYSTEM • PROJECTED COORDINATE SYSTEMS • UTM, WGS 1984, NORTHERN HEMISPHERE, ZONE 32 NORTH

  5. STEP 4 • DROP A POINT ON THE MAP (IT DOES NOT MATTER WHERE) • SELECT NEW SHAPEFILE AND START EDITING • THEN SELECT THE CREATE FEATURES ICON IN THE EDITOR TOOLBAR, SELECT YOUR SHAPEFILE AND DROP YOUR POINT • STOP EDITING

  6. STEP 5 • BUFFER YOUR POINT • ARC TOOLBOX, ANALYSIS TOOLS, PROXIMITY, BUFFER • MAKE IT 0.15 MILES

  7. STEP 6 • EXTRACT BY MASK • ARC TOOLBOX, SPATIAL ANALYST TOOLS, EXTRACTION • NEXT TURN OFF ALL OTHER LAYERS EXCETP YOUR MASK

  8. STEP 7 • RASTER TO POINT • ARC TOOLBOX, CONVERSON TOOLS, FROM RASTER, RASTER TO POINT (THIS MAY TAKE A MINUET)

  9. STEP 8 • ADD FIELD • ARC TOOLBOX, DATA MANAGEMENT TOOLS, FIELDS, ADD FIELDS

  10. STEP 9 • SELECT FIRST 100 POINTS ONLY • TABLE OPTIONS, SELECT BY ATTRIBUTES • DOUBLE CLICK “OBJECT ID” • THEN SELECT LESS THAN 100 • <100, APPLY

  11. STEP 10 • CALCULATE GEOMETRY • IN THE ATTRIBUTE TABLE RIGHT CLICK ON THE NEW FIELD, AND SELECT CALCULATE GEOMETRY

  12. FINAL STEP • EXPORT FEATURE ATTRIBUTE TO ASC2 • ARC TOOLBOX, SPATIAL STATISTICS TOOLS, UTILITIES, EXPORT FEATURE ATTRIBUTE TO ASC2 • SET DELIMITER TO COMMA

  13. OPEN FILE • MAKE SURE TO OPEN THE FILE WITH NOTEPAD

More Related