One: Prevent the source of topological errors: Set the threshold of vector movement to a maximum value:
Select the bottom option of Edtior... and set the selected place in the image below to a large positive value
Two: Customize shortcut keys (the shortcut keys need to be used in English):
Open "Customize" and the "CustomizeMode" below it, ,, and select the bottom Keyboard:
1) Select Selection, select Select by Rectangle at the back, and fill in a shortcut key in the lower left corner (if your own notebook does not have a small keyboard, use "-, =, [,], and, and Enter"), Click the Assign app on the right. . . . The shortcut keys set below are just examples, and the details can be changed according to habits; (the project cannot paste the vector after the shortcut key is set)
2) Cut cutting:
3) Merge: merge:
4) Save the edit (different from Ctrl+S to save the project):
5) Undo (you can also use the general key Ctrl+Z):
Three: Change the color of the image (usually 243): it is helpful to distinguish crops
Choose a suitable stretch, generally use Esri, or the percentage above (this is not necessarily, it should be determined according to your own visual situation)
Four:
1) Break up the same patch that is not connected:
Right-click on the menu bar, tick the advanced editing: advanced editing to display, and then start editing, reduce the image and vector, enlarge the box to select all vectors, and use the tools in front of the ball
2) Set the quadrats to be non-editable, click List By Selection, and then click the red in the picture below, set to Not Selectable
3) Use the clip tool in the editor to modify the overlapping patches. When the overlap of the following image occurs, the overlapping part can be merged into the selected patch using the clip.
4) Modify the cursor to be a non-snapping point to open Snapping, and click the four icons behind it to be unselected. This is not necessarily set by everyone, just understand.
Five: Make the TBLXDM in the attribute table equal to CBZW using the field calculator (must not select any vector)
Fields other than TBLXDM can then be turned off in the vector properties Field.
Six: When modifying
1) The magnification level of the scale bar should not be less than 1:2000. . That is, it can be 1:1000, 1:500. It cannot be 1:5000
2) Draw trees and roads, trees and ditches according to the actual situation. If they are completely covered, draw trees, otherwise draw them separately.
3) Assign attributes after modification. You can only assign TBLXDM crops in Heilongjiang to:
101 spring corn, 104 medium rice, 108 spring wheat, 115 soybean.
4) For the crops in front of and behind the house, large pieces should be drawn, and small pieces should not be drawn if they were not drawn last year. Note that small pieces do not need to be drawn, and large ones still need to be drawn.
The roads in the buildings should be drawn if they run through the village, the small roads that do not run through should not be drawn, and the wide ones should be drawn even if they do not run through.
5) First, check whether the segmentation is good and whether the cutting is in place.
Then classify them one by one to see if there are patches of misclassified attributes:
After right-clicking on the vector and selecting Properties, open the following image:
Click QueryBuilder...then double-click TBLXMC, click the equal sign "=", click again, then click the desired class, and then confirm. As shown below:
Seven: Associate "crop name.dbf" after checking
1) Add "cropname.dbf"
2) Display the fields that were just closed, or in Properties -> Field. Then right click on the vector and select Join...
2) Set up Join as shown below:
3) Use the Field Calculator to select TBLXMC equal to "CropName.Name"
4) Right-click on the vector and select Remove Link.
Eight: You can use the topology check to modify the rules to check whether there are any wrongly deleted patches.