QGIS Lab10 Fall14: QGIS Raster Analysis

Introduction:

This is tenth video tutorial of QGIS. It is about raster analysis. The objective is to learn and use raster analysis in qgis.

Summary:

  1. Load analysis.qgs
  2. Set project crs to 33S
  3. Add four settelite files and create virtual raster catalog. Raster > Miscellaneous > Build Virtual Raster (Catalog).
  4. Save in exercise_data/residential_development as aerial_photos.vrt
  5. Raster > Projections > Warp (Reproject). to 70300
  6. Raster > Miscellaneous > Merge.
  7. Changing Raster Layer Symbology and using View > Toolbars > Raster
  8. Terrain Analysis (hillshade, Slope and Aspect)
  9. Using the Raster Calculator, aspect@1 <= 90 OR aspect@1 >= 270, save it in aspect_north.tif and also calculate slope_lte2.tif and slope_lte5.tif.
  10. Write criteria for location: ( aspect_north@1 = 1 AND slope_lte5@1 = 1 ) OR slope_lte2@1 = 1 and save it as all_conditions.tif.
  11. Simplifying Raster: all_conditions_sieve.tif and Threshold and Pixel connections values to 8
  12. Open the Raster Calculator again, and build this expression: (all_conditions_sieve@1 <= 0) = 0 and save output as: all_conditions_simple.tif
  13. Raster > Conversion > Polygonize (Raster to Vector). Field name = suitable and save it as: all_terrain.shp
  14. For filer of suitable = 1, save it as suitable_terrain.shp
  15. Raster > Conversion > Rasterize (Vector to Raster) for suitable_terrain.shp, width = 837 and height = 661
  16. Use the Intersect tool (Vector -> Geoprocessing Tools) to create a new vector layer called new_solution.shp which contains only those buildings which intersect the suitable_terrain layer.

Below is the full video lecture. Use full screen for clear content of video. The download link of below video is ogg video or mp4 video. You can play it in vlc player or open it in web browser.

The example files that are used in video can be downloaded from here .

Reference:

  1. Chapter 08 of QGIS 2.6 Training Manual

QGIS Lab03 Fall14: QGIS Openlayer Plugin, Geocoding, Bulk Geocoding, and Raster Analysis

Introduction:

This is third video tutorial in urdu language for QGIS. It is overview lecture on basic tasks such as openlayer, geocoding and raster analysis.

Summary:

  1. Openlayer (google map and open street maps)
  2. Geocoding and reverse geocoding, bulk geocoding using MMQGIS (block/bulk of addresses at same time)
  3. Raster Analysis
    1. Interpolation
    2. Heat Map
    3. Terrain Analysis
    4. Slope
    5. Hill Shade
    6. Projection Wrap Projection
    7. Extraction:
      1. Contour
    8. Clipper/subsetting (corp)
    9. Miscellaneous
      1. Merge/mosaic (combine)

Below is the full video lecture. Use full screen for clear content of video. The download link of below video is ogg video or mp4 video. You can play it in vlc player or open it in web browser.

The example files that are used in video can be downloaded from here .

Reference:

  1. Openlayer
  2. Geocoding
  3. Raster Based Terrain Analysis Techniques
  4. Clipper and Contour
  5. Mosaicing and Clipping

Lectures on Advanced Structural Analysis I

Following are course content on Advanced Structural Analysis I

Course Intructor: Prof. Dr. Shahzad Rahman

Course Outline

Lectures

Lecture 1: Overview of Bernoulli-Euler Beam Theory, Theory of Torsion, Static Indeterminancy, Kinematic Indeterminancy

Lecture 2: Slope-Deflection Method

Lecture 3: Virtual Work Principles

Lecture 4: Moment Distribution Method

Lecture 5: Modifications in Moment Distribution Method

Lecture 6: Moment Distribution Method – Frame with Side Sway

Lecture 7: Compatibility Method of Analysis

Lecture 8: Matrix Analysis of Structures

Lecture 9: Matrix Analysis / Stiffness Method

Lecture 10: Matrix Analysis / Stiffness Method Contd.

Lecture 11: Matrix Analysis / Stiffness Method – Static Condensation

Lecture 12: Approximate Analysis

Lecture 13: Matrix Analysis – Member Releases

Labs

Introduction to SAP2000

Assignments

Assignment 1: Slope and Deflection of Beam

Assignment 2: Displacements in Truss

Assignment 3: Solving Beam using Moment Distribution Method

Solution of Assignments

Exam

Mid Term Exam Paper

Solution of Mid Term Paper

Final Term Exam Paper and Solution