<< Click to Display Table of Contents >> Navigation: waterRIDE FLOOD > GIS > Drawing/Editing |
Note that all editing is carried out "in memory". Changes are not written to disk until the save changes button is clicked. Editing is carried out on the active GIS layer, whilst creating new layers will write/append to the layer on disk, directly.
Draw object: Allows creation of point, polyline, polygon , circle and rectangle objects by directly drawing on the map. The data can be saved to the active layer (GIS file), to an external file (mif/mid format), or to the on-screen temporary buffer. The user is asked for the object type, then clicking points on the map will create the object. Alternatively, use the drop-down menu to directly select the object you wish to create. Right clicking will finish the object and display the data record for completion and then revert to enabling another object of the same type. Right clicking again will exit drawing.
XY Point: Allows the addition of point data by typing in the coordinates.
Move object: Select and move an object in the active layer while holding the left mouse button down. Holding down the Alt key facilitates snapping to existing points or vertices.
Edit vertices: Select a polyline or polygon object, then edit vertices: click & drag to move, Ctrl click to insert a vertex, and Shift click to delete a vertex. Holding down the Alt key facilitates snapping to existing points or vertices. Right click when finished with editing the object and right click again to leave edit mode.
Split Polyline: Breaks a selected polyline into two parts. Left click on the polyline to split, then left click on the point at which to split.
Edit object attributes: Display a table to edit the GIS attribute record for the selected object. Special tools are available for some field types.
Convert Active Field Text: Convert the active field text value to a GIS text object at the centroid of the object
Reverse Vertices Order: Reverse the order of vertices in a polygon/polyline
Delete object: Delete selected objects.
Abort drawing: Abort the current drawing process.
Save changes: Drawing to an active mif/mid layer is temporarily saved to the internal pbg/dbf format. This tool will write the changes back to the mif/mid file. If the active layer is a shape file, then this tool will compress the file, removing all deletions
Select Objects Within Fence: Select multiple objects by drawing different types of fences onscreen.
Calculate distance along a line to a point: Select a GIS polyline object, then select a point to determine the distance along the line to that point.
Split polyline: Splits a polyline into 2 parts
Merge polylines: Merges 2 polylines
Polygon Union: Merge all polygons in layer into a single polygon
Copy Object: Copy an object for pasting into a different GIS layer.
Paste Object: Paste object to active GIS layer
Copy Object to Separate File: Copy the selected GIS object to a separate file.
Geo-locate layer: A dialog provides a mechanism to translate and rotate a GIS layer to fit a desired coordinate base.
Revert to saved: Temporary changes can be scrapped by reverting back to the last saved version with this undo tool.
Note that you can snap to a node in the active GIS layer by holding down the ALT key.
For some GIS field types, special editing tools are available. These can be accessed by clicking the relevant button to the right of the editing grid.
Includes the path to an external file (full or relative). The user will be prompted to open the file using a standard open file form. This can be useful if you are intending to use GIS Links (eg in a Master Project).