O‘zbekiston axborot texnologiyalarini rivojlantirish va kommunikatsiyalar vazirligi muhammad al-xorazmiy nomidagi toshkent axborot texnologiyalari universiteti

Independent work of Ismatov Shaxzodjon
student of KIF 214-19 group
Tashkent University of Information Technologies
named after Muhammad al Khorezmi
on the subject of Geoinformation Technologies

Theme: Vector operations on Qgis(clip,buffer,difference,dissolve)
Plan:

1. 
   Clipping and buffering vector layer using polygon
   
2. 
   Difference between two layers
   
3. 
   Deleting boundaries with dissolve
   

Conclusion
References

I think I am just enjoying QGIS and writing tutorials on it. So far this is my third tutorial on QGIS. I thought I should write on some basics tools that you might need on your daily task. For example creating buffer or clipping the polygon I will be using the Geoprocessing tools to demonstrate some of the task that we might use every day while editing. If you want me to write specific tutorial then please leave your message on comment section.

A. Buffer

You have to create buffer all the time, it is fixed distance around the polygon, polyline or point file. To do that open the tool from Vector > Geoprocessing Tools > Intersect. Then you assign the layer under Input layer, buffer distance and output file name.

B. Intersect

Intersect tools allow you to exclude the area that is not overlapping. To do that open the tool from Vector > Geoprocessing Tools > Intersect. You assign Input Vector layer and Intersect layer and finally assign the output file name.

C. Union

Union allow to merge two layer into one layer but it does not remove the boundary line. To do that open the tool from Vector > Geoprocessing Tools > Union. You assign Input Vector layer and Union layer and finally assign the output file name. Attributes from both the layer are copied.