When sections have been calculated and plotted, it is often necessary to show in plan the position of the section cut line. The option Section Lines Plot allows you to create these symbols which comprise a line showing the cut line position, symbols showing the direction of view and text labels identifying the section name. When selected, a dialog will be displayed asking you to select the section whose cut lines you wish to plot. If you select a multi-section such as cross or radial sections, all the cut lines will be plotted. After you have selected the section, a dialog box will be displayed allowing you to specify the defaults you wish to use for the cut line. This dialog is a property sheet with two pages.
The Lines property page allows you to format the section cut line and its associated symbols. The pen used and the layer on which the section line is plotted can be defined in the usual Pen and Layer fields. The Symbol field defines the shape of the pointer that you wish to create at each end of the cut line. The Fill Symbol check button allows you to fill polygons in the pointer with a solid fill of the same colour.
The Length and Size fields define the size of the pointer. There are six possible symbols that can be created.
None - No symbol will be created.
Triangle - An isosceles triangle will be created. The Length field defines height of the triangle whilst the Size field defines the base width of the triangle.
Open Arrow - A line with an open arrowhead on the end will be created. The Length field defines the length of the line and the Size field defines the size of the arrowhead.
Closed Arrow - A line with a closed arrowhead on the end will be created. The Length field defines the length of the line and the Size field defines the size of the arrowhead.
Line - A simple line will be created. The Length field defines the length of the line whilst the Size field is ignored.
Rectangle - A rectangle will be created. The Length field defines the height of the rectangle and the Size field defines its width.
The Line Labels page allows you to format the text that is plotted at each end of the section line. The pen and text style used are defined by the Pen and Style fields. The positioning of the text is controlled by the two groups of radio buttons to the right of the page. The Angle group defines the angle of the text.
Parallel - The text will be created parallel to the section line as shown in the examples above.
Horizontal - The text will always be horizontal.
The Position group defines where the text should appear in relation to the section line symbol.
Outside - The text will be placed outside the section line symbols, as shown in the examples above, with bottom left justification.
Inside - The text will be placed inside the section line symbols with bottom right justification.
Above - The text will be placed above the section line symbols with bottom middle justification.
The Section Lines Delete option allows you to delete section lines from the current model. You will be asked to indicate the section line to delete. You should ensure that you indicate an element within the section line.