Creating Geodatabase with Feature dataset and feature classes
1. Opena map that has alreadybeengeoreferencedusing‘adddata’inArcMap.
2. OpenArc Catalog.Create a foldertocreate the database in.
3. Right click the folder->New ->Create Personal Geodatabase
4. Right click the createdGeodatabase ->New -> Create Feature Dataset.Setgeographicco-
ordinate systemWGS84.
5. Right click on the newfeature datasetfolder->New ->Create feature class
6. Give feature classdetails –point,line orpolygon.
7. Give fieldvariablesforthe feature class,alongwithrelevantdatatype.
8. The createdfeature layerwill appearonthe Control Panel (inthe leftwindow)
9. Close the catalogwindow,tostart drawingline feature.
10. Rightclickon ‘layers’inControl Panel ->SelectAttributetable.
11. Openeditortool andselect‘Startediting’ ->clickon‘create feature’ andselectfeature you
added.
12. Draw the feature onthe map. Double clicktoenddrawing.(Zoomtoget a closerview anddraw
accurately)
13. Go to attribute table ->editfieldcategory.
14. Whendone editing, go to Editor Tool bar and give save edit-> Stop edit.
15. To start editingagain,clickon‘StartEdit’.
16. To create anotherfeature,saypolygonfeature, click‘stopediting’,then gotoArc Catalog,right
clickFeature datasetyoucreatedand create new feature class – polygonfeature.Give asmany
fieldnamesasnecessary.
17. While drawingpolygonfeature,toretrace linesalreadydrawnaspart of a new polygon,select
‘trace’feature.
18. Aftercompletingdrawingall features,‘save edit’and‘Stopedit’.
19. To separate the polygonintoseparate polygonfeatures:
20. Rightclickon the polygonlayerin‘Control Panel’ ->openattribute table ->selectthe polygon to
separate -> thenrightclickon the polygonlayertoseparate in‘Control Panel’ ->select‘data’ -
>select‘exportdata’andgive folderinwhichtosave in,and name of file.Save as.shpfile.
21. Likewise,lineandpointlayerscanbe separatedintoindividual layersandassignedcolorsand
labels.
22. To calculate area,go to attribute table,rightclickon ‘Area’field->select‘Calculate Geometry’,
give unitsasrequired- usuallysq.meters.
23. To save,select‘Save as’inArcMap.
24. To re-openmap,opensavedArcdocumentfile using‘Open’ asforanynormal file.
25. To give differentcolors/symbolstodifferentpartsof a single polygonorline feature,rightclick
the layer,openproperties ->symbologytab -> categories ->show all values,andselectfield
name that youwant to showinmap. Thenclickon symbol tochange symbol andcolors.

Lab report 3 creating geodatabase

  • 1.
    Creating Geodatabase withFeature dataset and feature classes 1. Opena map that has alreadybeengeoreferencedusing‘adddata’inArcMap. 2. OpenArc Catalog.Create a foldertocreate the database in. 3. Right click the folder->New ->Create Personal Geodatabase 4. Right click the createdGeodatabase ->New -> Create Feature Dataset.Setgeographicco- ordinate systemWGS84.
  • 2.
    5. Right clickon the newfeature datasetfolder->New ->Create feature class 6. Give feature classdetails –point,line orpolygon.
  • 3.
    7. Give fieldvariablesforthefeature class,alongwithrelevantdatatype. 8. The createdfeature layerwill appearonthe Control Panel (inthe leftwindow) 9. Close the catalogwindow,tostart drawingline feature. 10. Rightclickon ‘layers’inControl Panel ->SelectAttributetable.
  • 4.
    11. Openeditortool andselect‘Startediting’->clickon‘create feature’ andselectfeature you added. 12. Draw the feature onthe map. Double clicktoenddrawing.(Zoomtoget a closerview anddraw accurately)
  • 5.
    13. Go toattribute table ->editfieldcategory. 14. Whendone editing, go to Editor Tool bar and give save edit-> Stop edit. 15. To start editingagain,clickon‘StartEdit’. 16. To create anotherfeature,saypolygonfeature, click‘stopediting’,then gotoArc Catalog,right clickFeature datasetyoucreatedand create new feature class – polygonfeature.Give asmany fieldnamesasnecessary.
  • 6.
    17. While drawingpolygonfeature,toretracelinesalreadydrawnaspart of a new polygon,select ‘trace’feature. 18. Aftercompletingdrawingall features,‘save edit’and‘Stopedit’. 19. To separate the polygonintoseparate polygonfeatures: 20. Rightclickon the polygonlayerin‘Control Panel’ ->openattribute table ->selectthe polygon to separate -> thenrightclickon the polygonlayertoseparate in‘Control Panel’ ->select‘data’ - >select‘exportdata’andgive folderinwhichtosave in,and name of file.Save as.shpfile.
  • 7.
    21. Likewise,lineandpointlayerscanbe separatedintoindividuallayersandassignedcolorsand labels. 22. To calculate area,go to attribute table,rightclickon ‘Area’field->select‘Calculate Geometry’, give unitsasrequired- usuallysq.meters.
  • 9.
    23. To save,select‘Saveas’inArcMap. 24. To re-openmap,opensavedArcdocumentfile using‘Open’ asforanynormal file. 25. To give differentcolors/symbolstodifferentpartsof a single polygonorline feature,rightclick the layer,openproperties ->symbologytab -> categories ->show all values,andselectfield name that youwant to showinmap. Thenclickon symbol tochange symbol andcolors.