(point A-B-C-D). For this reason, it is imperative to save on edit the trajectory graphics to recalculate correct measurements. The graphics files discussed in step 4 need to be saved as a shapefile. This can be Step 7: accomplished by right-clicking the layer and Feature to By selecting “Convert Graphic”. doing this, spatial data is created for the trajectory lines (lateral migration lines) which can be manipulated by editing and recalculating measurements if needed. Once to is selected, a dialog box appears where the Step 8: “Convert Feature Graphic” shapefile name and storage location is selected by the user. Note a check box for graphics must be selected to avoid ArcMap from “Automatically delete after conversion” crashing. The newly created trajectory line shapefile is added to ArcMap, and three lines Step 9: running the longitudinal length of the river need to be selected and deleted in an editing session so only the lateral migration trajectory lines remain. Finally, all trajectory lines need to be inspected and edited to catch any errors Step 10: made by the tool. This is most commonly seen where cut-offs occur (Figure 3). In this study, the lines were first edited by students from an upper-division fluvial geomorphology class and then inspected and further edited by myself. This methodology for running the tool and creating the NCED “Lateral Migration” trajectory lines is summarized in Figure 4 with images showing the step by step processes of the tool.
(point A-B-C-D). For this reason, it is imperative to save on edit the trajectory graphics to recalculate correct measurements. Step 7: The graphics files discussed in step 4 need to be saved as a shapefile. This can be accomplished by right-clicking the layer and selecting “Convert Feature to Graphic”. By doing this, spatial data is created for the trajectory lines (lateral migration lines) which can be manipulated by editing and recalculating measurements if needed. Step 8: Once “Convert Feature to Graphic” is selected, a dialog box appears where the shapefile name and storage location is selected by the user. Note a check box for “Automatically delete graphics after conversion” must be selected to avoid ArcMap from crashing. Step 9: The newly created trajectory line shapefile is added to ArcMap, and three lines running the longitudinal length of the river need to be selected and deleted in an editing session so only the lateral migration trajectory lines remain. Step 10: Finally, all trajectory lines need to be inspected and edited to catch any errors made by the tool. This is most commonly seen where cut-offs occur (Figure 3). In this study, the lines were first edited by students from an upper-division fluvial geomorphology class and then inspected and further edited by myself. This methodology for running the NCED “Lateral Migration” tool and creating the trajectory lines is summarized in Figure 4 with images showing the step by step processes of the tool.
FinalReport-InvasiveCarpWorkplanFinal%20%281%29.docx