Press OK to start the creation of the wing lines.Ĭlick on and select Lines to view the results of the wingline generation.įor a polyline, click on the line in the Plan View. Use the Up/Down arrows to increase/decrease the displayed value by 1 (5m for wingline interval). 'Wing lines' (and 'Cross lines') commands become active.Ĭlick on which opens the Wing Lines Settings window:Įnter values and make selections to generate winglines on the port and starboard side of the initial line selection. Creating wing lines requires that a line or polyline be defined first.īefore generating any wing lines, make sure to select the layer on which they must be stored.Ĭlick on this line in the Plan View. Wing lines are simply lines generated parallel to a single baseline or polyline. In dredging work, the deepest point of the dredge head model is used to calculate the clearance between dredge head and avoidance object. Note that only a 2D check is carried out on area's.ģD Checks are carried out only on polylines that are NOT closed of course the height should be filled in properly in the Line Database Manager. Then it is automatically recognized as an area. To define an entire area make sure the last polyline point is identical to the first (i.e. The plan view responds immediately so you can gauge the effect.Ĭhoose colors for the line and fill for the icon.Īvoidance objects can be created in the Line Database Manager. Use the slider to modify the transparency of the fill color. If not activated, the boundary of the area is stored as a polyline and it cannot be filled with a color. In the case of an area, check the 'Make it an area' tick box to actually create an area. Enter a name, and select the object attributes. As depicted in the image below there are slight differences in the dialog. In each case the Add New Object dialog opens. This will automatically invoke the extra options for defining an area. The Shift button can also be used when closing the area boundary. In the plan view the figure then fills with a default grey color. Make sure to click on or near the first point to create a closed boundary.
To create a point with a radius, hold down the CTRL button.įor a Line, click two points with the left mouse button, then click the right mouse button to end the drawing mode.įor a Polyline (route), click multiple points with the left mouse button, then click the right mouse button to end the drawing mode.įor an Area click the vertex points of the area with the left mouse button, then click the right mouse button to end the drawing mode. The cursor changes to indicate that a point can be selected in the Plan View area:įor a Point, click once with the left mouse button, then click the right mouse button to end the drawing mode. Make sure the focus is on the line database created and on the layer in which the objects are to be added.Ĭlick on the button. Point, line, route and/or area data now needs to be added. Create Point, Line, Polyline and Area Objects Primitive Count refers to the number of elements in each layer.
To organize points, lines and routes used, perhaps, for different purposes, it is useful to add layers to the single layer created in the new *.qgf file.Ĭlick on and then edit the name of the layer added. The Line Tools tab only becomes active when a Line Database (listed under Line and CAD / GIS Files) is selected in Project Explorer window.
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