Aspect (Slicing-Majority Filter-Clip)

Aspect (Slicing-Majority Filter-Clip)

Aspect (Slicing-Majority Filter-Clip)

1. Open the application ILWIS 3.3 Academic
2. Write "Aspect = raddeg (atan2 (dx, ddy) pi)"
3. Then click show> OK
4. It would appear the result
5. Aspect right click> image processing> Slicing ...
6. Output aspect_nine, create a new domain> Aspect_nine enter the domain name and check the group, width 15> OK
7. Add domain item
Upper Bound, Class Name: 22.5, North> 67.5, North-East> 112.5, East> 157.5, South-East> 202.5, South> 247.5, South-West> 292.5, West> 337.5, North-West> 361, North2
8. change the color of the Representation
9. then click on the show if you want to display the result
10. Click on the available colors to the left so that representation appears
11. Back to the main window and then type "Aspect_Flat_nine = ifundef (aspect_nine," flat ", Aspect_nine)"
12. Press the Enter> Show> Yes> OK
13. It will be seen clearly the contours on the map
14. Click Aspect_Flat_nine> Image Processing> Filters ...
15. Select the type of filter and the filter name to be Majority Majority, Output fill Aspect_M> show> OK
16. Write them in the comments line "Aspect_catchment = iff ((catchment =" catchment ") or (Aspect_m =" aspect_m "), Aspect_m,?)"> Show> OK
17. To view the histogram right click on Aspect_catchment> statistics> Histogram ... > show
18. To be more clear in the reading right click on Aspect_catchment> Raster Operations> Numbering Area ...
19. Output> Aspect_nine_area> show> OK
20. The results will come out when we click on an existing attribute


For more details see the following video tutorial

or can be downloaded here

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